PTYS/LPL Faculty
Dániel Apai
Ph.D., 2004, University of Heidelberg
Years with LPL: 2011 to present
Astrobiology, Exoplanets, Planetary Atmospheres, Planetary Formation and Evolution, Extrasolar Planets, Planetary Atmospheres, Astrobiology, Interdisciplinary Research
Dr. Apai’s research focuses on exoplanetary systems, including planet formation, planetary atmospheres, exoplanet discovery and characterization. His work covers habitable and non-habitable small exoplanets, gas giant exoplanets, and brown dwarfs.
Read more about Dr. Apai's research on his website and blog on exoplanet exploration and astrobiology.
Current Grants
- Alien Earths and Earths in Other Solar Systems – A large interdisciplinary NASA Nexus for Exoplanet System Science project to study the formation and properties of habitable worlds and to identify which nearby planetary systems are more likely to host habitable worlds. AE/EOS is a 10-year, $12M interdisciplinary project that includes over 30 senior investigators, and about 40 graduate students and postdocs.
- Project EDEN – A search for habitable worlds within fifty lightyears.
Current Spacecraft Involvement
James Webb Space Telescope, Nautilus, Pandora- Nautilus Space Observatory – The Nautilus Space Observatory concept and its supporting technology development effort is to enable large-scale searches for atmospheric biosignatures via a paradigm change in the way space telescopes are designed and built. Funded by the Gordon and Betty Moore Foundation, our team has developed a novel, ultralight space optical system that makes large-diameter, high-performance optical systems replicable at relatively low cost.
- Pandora Space Telescope – A funded NASA SmallSat/Pioneers program, Pandora will launch in 2025 and will study the atmospheres of small, transiting extrasolar planets in 20 nearby planetary systems.
Current Graduate Students
Student Collaborations/Advising
Former Students
- Quentin Jay Socia (UA/Astronomy)
- Jeremy Dietrich (UA/Astronomy)
- Alex Bixel (UA/Astronomy)
- Kevin Wagner (UA/Astronomy)
- Yifan Zhou (UA/Astronomy)
- Ben Wei Peng Lew (UA/Astronomy)
- Benjamin Rackham (UA/Astronomy)
- Davin Flateau, 2015 (M.Sc.)
- Jake Ryan Hanson, 2014, University of Arizona
- Judit Szulagyi, 2010-2011, Space Telescope Science Institute and Eotvos Lorand University
- Laszlo Szucs, 2009-2011, Space Telescope Science Institute and University of Szeged
- Veselin Kostov, 2009, Johns Hopkins University
- Justin Rogers, 2008-2012, Johns Hopkins University
- Emily Hardegree-Ullman, 2006-2007, University of Arizona
- Yancey Sechrest, 2005-2006, University of Arizona
- Emily E. Berkson (UA Astronomy)
- William Nolan (UA CAMPARE)
Current Postdocs
- Dr. Brittany Miles
- Dr. Martin Schlecker
- Dr. Kevin Hardegree-Ullman
- Dr. Kevin Wagner
- Dr. Megan Mansfield
Former Postdocs
- Alex Bixel
- Sebastiaan Krijt
- Benjamin Rackham
- Gijs Mulders
- Jonathan Rees
- Elena Manjavacas
- Michael McGauley
- Hao Yang
- Theodora Karalidi
- Esther Buenzli
Current Research/Staff Scientists
- Dr Mark Giampapa
- Dr Terry-Ann Suer
Based on Google Scholar and NASA ADS: NASA ADS Author search: Daniel Apai
Recent refereed publications (NASA ADS): Years 2019 through June 2024
Lothringer, Joshua D., Zhou, Yifan, Apai, Dániel, Tan, Xianyu, Parmentier, Vivien, & Casewell, Sarah L. 2024, The Astrophysical Journal. Atmospheric Retrievals of the Phase-resolved Spectra of Irradiated Brown Dwarfs WD-0137B and EPIC-2122B
Amaro, Rachael C., Apai, Dániel, Lew, Ben W. P., Zhou, Yifan, Lothringer, Joshua D., Casewell, Sarah L., Tan, Xianyu, Barman, Travis, Marley, Mark S., Mayorga, L. C., & Parmentier, Vivien 2024, The Astrophysical Journal. Time-resolved Hubble Space Telescope Wide Field Camera 3 Spectrophotometry Reveals Inefficient Day-to-night Heat Redistribution in the Highly Irradiated Brown Dwarf SDSS 1557B
Fuda, Nguyen, Apai, Dániel, Nardiello, Domenico, Tan, Xianyu, Karalidi, Theodora, & Bedin, Luigi Rolly 2024, The Astrophysical Journal. Latitude-dependent Atmospheric Waves and Long-period Modulations in Luhman 16 B from the Longest Light Curve of an Extrasolar World
Dietrich, Jeremy, Malhotra, Renu, & Apai, Dániel 2024, The Astronomical Journal. Statistical Distribution Function of Orbital Spacings in Planetary Systems
Schlecker, Martin, Apai, Dániel, Lichtenberg, Tim, Bergsten, Galen, Salvador, Arnaud, & Hardegree-Ullman, Kevin K. 2024, The Planetary Science Journal. Bioverse: The Habitable Zone Inner Edge Discontinuity as an Imprint of Runaway Greenhouse Climates on Exoplanet Demographics
Kevin Wagner, Jordan Stone, Andrew Skemer, Steve Ertel, Ruobing Dong, Dániel Apai, Eckhart Spalding, Jarron Leisenring, Michael Sitko, Kaitlin Kratter, Travis Barman, Mark Marley, Brittany Miles, Anthony Boccaletti, Korash Assani, Ammar Bayyari, Taichi Uyama, Charles E. Woodward, Phil Hinz, Zackery Briesemeister, Kellen Lawson, François Ménard, Eric Pantin, Ray W. Russell, Michael Skrutskie, John Wisniewski 2023, Nature Astronomy. Direct images and spectroscopy of a giant protoplanet driving spiral arms in MWC 758
Hardegree-Ullman, Kevin K., Apai, Dániel, Bergsten, Galen J., Pascucci, Ilaria, & López-Morales, Mercedes 2023, The Astronomical Journal. Bioverse: A Comprehensive Assessment of the Capabilities of Extremely Large Telescopes to Probe Earth-like O<SUB>2</SUB> Levels in Nearby Transiting Habitable-zone Exoplanets
Amaro, Rachael C., Apai, Dániel, Zhou, Yifan, Lew, Ben W. P., Casewell, Sarah L., Mayorga, L. C., Marley, Mark S., Tan, Xianyu, Lothringer, Joshua D., Parmentier, Vivien, & Barman, Travis 2023, The Astrophysical Journal. Hotter than Expected: Hubble Space Telescope (HST)/WFC3 Phase-resolved Spectroscopy of a Rare Irradiated Brown Dwarf with Strong Internal Heat Flux
Merrin S. Peterson, Björn Benneke, Karen Collins, Caroline Piaulet, Ian J. M. Crossfield, Mohamad Ali-Dib, Jessie L. Christiansen, Jonathan Gagné, Jackie Faherty, Edwin Kite, Courtney Dressing, David Charbonneau, Felipe Murgas, Marion Cointepas, Jose Manuel Almenara, Xavier Bonfils, Stephen Kane, Michael W. Werner, Varoujan Gorjian, Pierre-Alexis Roy, Avi Shporer, Francisco J. Pozuelos, Quentin Jay Socia, Ryan Cloutier, Jeremy Dietrich, Jonathan Irwin, Lauren Weiss, William Waalkes, Zach Berta-Thomson, Thomas Evans, Daniel Apai, Hannu Parviainen, Enric Pallé, Norio Narita, Andrew W. Howard, Diana Dragomir, Khalid Barkaoui, Michaël Gillon, Emmanuel Jehin, Elsa Ducrot, Zouhair Benkhaldoun, Akihiko Fukui, Mayuko Mori, Taku Nishiumi, Kiyoe Kawauchi, George Ricker, David W. Latham, Joshua N. Winn, Sara Seager, Howard Isaacson, Alex Bixel, Aidan Gibbs, Jon M. Jenkins, Jeffrey C. Smith, Jose Perez Chavez, Benjamin V. Rackham, Thomas Henning, Paul Gabor, Wen-Ping Chen, Nestor Espinoza, Eric L. N. Jensen, Kevin I. Collins, Richard P. Schwarz, Dennis M. Conti, Gavin Wang, John F. Kielkopf, Shude Mao, Keith Horne, Ramotholo Sefako, Samuel N. Quinn, Dan Moldovan, Michael Fausnaugh, Gábor Fűűrész & Thomas Barclay 2023, Nature. A temperate Earth-sized planet with tidal heating transiting an M6 star
Dietrich, Jeremy, Apai, Dániel, Schlecker, Martin, Hardegree-Ullman, Kevin K., Rackham, Benjamin V., Kurtovic, Nicolas, Molaverdikhani, Karan, Gabor, Paul, Henning, Thomas, Chen, Wen-Ping, Mancini, Luigi, Bixel, Alex, Gibbs, Aidan, Boyle, Richard P., Brown-Sevilla, Samantha, Burn, Remo, Delage, Timmy N., Flores-Rivera, Lizxandra, Franceschi, Riccardo, Pichierri, Gabriele, Savvidou, Sofia, Syed, Jonas, Bruni, Ivan, Ip, Wing-Huen, Ngeow, Chow-Choong, Tsai, An-Li, Lin, Chia-Lung, Hou, Wei-Jie, Hsiao, Hsiang-Yao, Lin, Chi-Sheng, Lin, Hung-Chin, Basant, Ritvik, & EDEN Project 2023, The Astronomical Journal. EDEN Survey: Small Transiting Planet Detection Limits and Constraints on the Occurrence Rates of Planets around Late-M Dwarfs within 15 pc
Pozuelos, F. J., Timmermans, M., Rackham, B. V., Garcia, L. J., Burgasser, A. J., Kane, S. R., Günther, M. N., Stassun, K. G., Van Grootel, V., Dévora-Pajares, M., Luque, R., Edwards, B., Niraula, P., Schanche, N., Wells, R. D., Ducrot, E., Howell, S., Sebastian, D., Barkaoui, K., Waalkes, W., Cadieux, C., Doyon, R., Boyle, R. P., Dietrich, J., Burdanov, A., Delrez, L., Demory, B. -O., de Wit, J., Dransfield, G., Gillon, M., Gómez Maqueo Chew, Y., Hooton, M. J., Jehin, E., Murray, C. A., Pedersen, P. P., Queloz, D., Thompson, S. J., Triaud, A. H. M. J., Zúñiga-Fernández, S., Collins, K. A., Fausnaugh, M. M., Hedges, C., Hesse, K. M., Jenkins, J. M., Kunimoto, M., Latham, D. W., Shporer, A., Ting, E. B., Torres, G., Amado, P., Rodón, J. R., Rodríguez-López, C., Suárez, J. C., Alonso, R., Benkhaldoun, Z., Berta-Thompson, Z. K., Chinchilla, P., Ghachoui, M., Gómez-Muñoz, M. A., Rebolo, R., Sabin, L., Schroffenegger, U., Furlan, E., Gnilka, C., Lester, K., Scott, N., Aganze, C., Gerasimov, R., Hsu, C., Theissen, C., Apai, D., Chen, W. P., Gabor, P., Henning, T., & Mancini, L. 2023, Astronomy and Astrophysics. A super-Earth and a mini-Neptune near the 2:1 MMR straddling the radius valley around the nearby mid-M dwarf TOI-2096
Werber, Zach, Wagner, Kevin, & Apai, Dániel 2023, The Astronomical Journal. The Direct Mid-infrared Detectability of Habitable-zone Exoplanets around Nearby Stars
Bedin, L. R., Salaris, M., Anderson, J., Scalco, M., Nardiello, D., Vesperini, E., Richer, H., Burgasser, A., Griggio, M., Gerasimov, R., Apai, D., Bellini, A., Libralato, M., Bergeron, P., Rich, R. M., & Grazian, A. 2023, Monthly Notices of the Royal Astronomical Society. The HST large programme on NGC 6752 - IV. The White Dwarf sequence
Allen, Natalie H., Espinoza, Néstor, Jordán, Andrés, López-Morales, Mercedes, Apai, Dániel, Rackham, Benjamin V., Kirk, James, Osip, David J., Weaver, Ian C., McGruder, Chima, Ceballos, Kevin Ortiz, Reggiani, Henrique, Brahm, Rafael, Rodler, Florian, Lewis, Nikole K., & Fraine, Jonathan 2022, The Astronomical Journal. ACCESS: Tentative Detection of H<SUB>2</SUB>O in the Ground-based Optical Transmission Spectrum of the Low-density Hot Saturn HATS-5b
Basant, Ritvik, Dietrich, Jeremy, & Apai, Dániel 2022, The Astronomical Journal. An Integrative Analysis of the Rich Planetary System of the Nearby Star e Eridani: Ideal Targets for Exoplanet Imaging and Biosignature Searches
Jacob Haqq-Misra, Edward W. Schwieterman, Hector Socas-Navarro, Ravi Kopparapu, Daniel Angerhausen, Thomas G. Beatty, Svetlana Berdyugina, Ryan Felton, Siddhant Sharma, Gabriel G. De la Torre, Dániel Apai 2022, Acta Astronautica. Searching for technosignatures in exoplanetary systems with current and future missions
McGruder, Chima D., López-Morales, Mercedes, Kirk, James, Espinoza, Néstor, Rackham, Benjamin V., Alam, Munazza K., Allen, Natalie, Nikolov, Nikolay, Weaver, Ian C., Ortiz Ceballos, Kevin, Osip, David J., Apai, Dániel, Jordán, Andrés, & Fortney, Jonathan J. 2022, The Astronomical Journal. ACCESS: Confirmation of a Clear Atmosphere for WASP-96b and a Comparison of Light Curve Detrending Techniques
Wagner, Kevin, Apai, Dániel, Kasper, Markus, Kratter, Kaitlin, McClure, Melissa, Robberto, Massimo, & Beuzit, Jean-Luc 2022, Science. Retraction
Dietrich, Jeremy, Apai, Dániel, & Malhotra, Renu 2022, The Astronomical Journal. An Integrative Analysis of the HD 219134 Planetary System and the Inner solar system: Extending DYNAMITE with Enhanced Orbital Dynamical Stability Criteria
Wagner, Kevin, Apai, Dániel, Kasper, Markus, McClure, Melissa, & Robberto, Massimo 2022, The Astronomical Journal. The Scorpion Planet Survey: Wide-orbit Giant Planets Around Young A-type Stars
Zhou, Yifan, Apai, Dániel, Tan, Xianyu, Lothringer, Joshua D., Lew, Ben W. P., Casewell, Sarah L., Parmentier, Vivien, Marley, Mark S., Xu, Siyi, & Mayorga, L. C. 2022, The Astronomical Journal. HST/WFC3 Complete Phase-resolved Spectroscopy of White-dwarf-brown-dwarf Binaries WD 0137 and EPIC 2122
Zhou, Yifan, Bowler, Brendan P., Apai, Dániel, Kataria, Tiffany, Morley, Caroline V., Bryan, Marta L., Skemer, Andrew J., & Benneke, Björn 2022, The Astronomical Journal. Roaring Storms in the Planetary-mass Companion VHS 1256-1257 b: Hubble Space Telescope Multiepoch Monitoring Reveals Vigorous Evolution in an Ultracool Atmosphere
Lew, Ben W. P., Apai, Dániel, Zhou, Yifan, Marley, Mark, Mayorga, L. C., Tan, Xianyu, Parmentier, Vivien, Casewell, Sarah, & Xu (许偲艺), Siyi 2022, The Astronomical Journal. Mapping the Pressure-dependent Day-Night Temperature Contrast of a Strongly Irradiated Atmosphere with HST Spectroscopic Phase Curve
Oliveros-Gomez, Natalia, Manjavacas, Elena, Ashraf, Afra, Bardalez-Gagliuffi, Daniella C., Vos, Johanna M., Faherty, Jacqueline K., Karalidi, Theodora, & Apai, Daniel 2022, The Astrophysical Journal. Informed Systematic Method to Identify Variable Mid- and Late-T Dwarfs
Wells, R. D., Rackham, B. V., Schanche, N., Petrucci, R., Gómez Maqueo Chew, Y., Demory, B. -O., Burgasser, A. J., Burn, R., Pozuelos, F. J., Günther, M. N., Sabin, L., Schroffenegger, U., Gómez-Muñoz, M. A., Stassun, K. G., Van Grootel, V., Howell, S. B., Sebastian, D., Triaud, A. H. M. J., Apai, D., Plauchu-Frayn, I., Guerrero, C. A., Guillén, P. F., Landa, A., Melgoza, G., Montalvo, F., Serrano, H., Riesgo, H., Barkaoui, K., Bixel, A., Burdanov, A., Chen, W. P., Chinchilla, P., Collins, K. A., Daylan, T., de Wit, J., Delrez, L., Dévora-Pajares, M., Dietrich, J., Dransfield, G., Ducrot, E., Fausnaugh, M., Furlan, E., Gabor, P., Gan, T., Garcia, L., Ghachoui, M., Giacalone, S., Gibbs, A. B., Gillon, M., Gnilka, C., Gore, R., Guerrero, N., Henning, T., Hesse, K., Jehin, E., Jenkins, J. M., Latham, D. W., Lester, K., McCormac, J., Murray, C. A., Niraula, P., Pedersen, P. P., Queloz, D., Ricker, G., Rodriguez, D. R., Schroeder, A., Schwarz, R. P., Scott, N., Seager, S., Theissen, C. A., Thompson, S., Timmermans, M., Twicken, J. D., & Winn, J. N. 2021, Astronomy and Astrophysics. A large sub-Neptune transiting the thick-disk M4 V TOI-2406
Schlawin, Everett, Su, Kate Y. L., Herter, Terry, Ridden-Harper, Andrew, & Apai, Dániel 2021, The Astronomical Journal. LBT Reveals Large Dust Particles and a High Mass-loss Rate for K2-22 b
Kirk, James, Rackham, Benjamin V., MacDonald, Ryan J., López-Morales, Mercedes, Espinoza, Néstor, Lendl, Monika, Wilson, Jamie, Osip, David J., Wheatley, Peter J., Skillen, Ian, Apai, Dániel, Bixel, Alex, Gibson, Neale P., Jordán, Andrés, Lewis, Nikole K., Louden, Tom, McGruder, Chima D., Nikolov, Nikolay, Rodler, Florian, & Weaver, Ian C. 2021, The Astronomical Journal. ACCESS and LRG-BEASTS: A Precise New Optical Transmission Spectrum of the Ultrahot Jupiter WASP-103b
Lin, Chia-Lung, Chen, Wen-Ping, Ip, Wing-Huen, Apai, Dániel, Bixel, Alex, Boyle, Richard, Chavez, Jose Perez, Espinoza, Nestor, Gibbs, Aidan, Gabor, Paul, Henning, Thomas, Mancini, Luigi, Rackham, Benjamin V., Schlecker, Martin, Dietrich, Jeremy, Socia, Quentin Jay, Keppler, Miriam, Bhandare, Asmita, & Häberle, Maximilian 2021, The Astronomical Journal. EDEN: Flare Activity of the Nearby Exoplanet-hosting M Dwarf Wolf 359 Based on K2 and EDEN Light Curves
Biller, Beth A., Apai, Dániel, Bonnefoy, Mickaël, Desidera, Silvano, Gratton, Raffaele, Kasper, Markus, Kenworthy, Matthew, Lagrange, Anne-Marie, Lazzoni, Cecilia, Mesa, Dino, Vigan, Arthur, Wagner, Kevin, Vos, Johanna M., & Zurlo, Alice 2021, Monthly Notices of the Royal Astronomical Society. A high-contrast search for variability in HR 8799bc with VLT-SPHERE
Fang, Min, Kim, Jinyoung Serena, Pascucci, Ilaria, & Apai, Dániel 2021, The Astrophysical Journal. An Improved Hertzsprung-Russell Diagram for the Orion Trapezium Cluster
Wagner, K., Boehle, A., Pathak, P., Kasper, M., Arsenault, R., Jakob, G., Käufl, U., Leveratto, S., Maire, A. -L., Pantin, E., Siebenmorgen, R., Zins, G., Absil, O., Ageorges, N., Apai, D., Carlotti, A., Choquet, É., Delacroix, C., Dohlen, K., Duhoux, P., Forsberg, P., Fuenteseca, E., Gutruf, S., Guyon, O., Huby, E., Kampf, D., Karlsson, M., Kervella, P., Kirchbauer, J. -P., Klupar, P., Kolb, J., Mawet, D., N'Diaye, M., de Xivry, G. Orban, Quanz, S. P., Reutlinger, A., Ruane, G., Riquelme, M., Soenke, C., Sterzik, M., Vigan, A., & de Zeeuw, T. 2021, Nature Communications. Author Correction: Imaging low-mass planets within the habitable zone of α Centauri
Weaver, I. C., López-Morales, M., Alam, M. K., Espinoza, N., Rackham, B. V., Goyal, J. M., MacDonald, R. J., Lewis, N. K., Apai, D., Bixel, A., Jordán, A., Kirk, J., McGruder, C., Osip, D. J. 2021, The Astronomical Journal ACCESS: An Optical Transmission Spectrum of the High-gravity Hot Jupiter HAT-P-23b
Bixel, A., Apai, D. 2021, The Astronomical Journal Bioverse: A Simulation Framework to Assess the Statistical Power of Future Biosignature Surveys
Scalco, M., Bellini, A., Bedin, L. R., Anderson, J., Rosati, P., Libralato, M., Salaris, M., Vesperini, E., Nardiello, D., Apai, D., Burgasser, A. J., Gerasimov, R. 2021, Monthly Notices of the Royal Astronomical Society The HST large programme on ω Centauri - IV. catalogue of two external fields
Tannock, M.E., Metchev, S., Heinze, A., Miles-Páez, P. A., Gagné, J., Burgasser, A., Marley, M. S., Apai, D., Suárez, G., Plavchan, P. 2021, The Astronomical Journal Weather on Other Worlds. V. The Three Most Rapidly Rotating Ultra-cool Dwarfs
Zhou, Y., Bowler, B. P., Wagner, K. R., Schneider, G., Apai, D., Kraus, A. L., Close, L. M., Herczeg, G. J., Fang, M. 2021, The Astronomical Journal Hubble Space Telescope UV and Hα Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 b
Carone, L., Mollière, P., Zhou, Y., Bouwman, J., Yan, F., Baeyens, R., Apai, D., Espinoza, N., Rackham, B. V., Jordán, A., Angerhausen, D., Decin, L., Lendl, M., Venot, O., Henning, T. 2021, Astronomy and Astrophysics Indications for very high metallicity and absence of methane in the eccentric exo-Saturn WASP-117b
Wagner, K., Boehle, A., Pathak, P., Kasper, M., Arsenault, R., Jakob, G., Käufl, U., Leveratto, S., Maire, A.-L., Pantin, E., Siebenmorgen, R., Zins, G., Absil, O., Ageorges, N., Apai, D., Carlotti, A., Choquet, É., Delacroix, C., Dohlen, K., Duhoux, P., Forsberg, P., Fuenteseca, E., Gutruf, S., Guyon, O., Huby, E., Kampf, D., Karlsson, M., Kervella, P., Kirchbauer, J.-P., Klupar, P., Kolb, J., Mawet, D., N'Diaye, M., Orban de Xivry, G., Quanz, S. P., Reutlinger, A., Ruane, G., Riquelme, M., Soenke, C., Sterzik, M., Vigan, A., de Zeeuw, T. 2021, Nature Communications Imaging low-mass planets within the habitable zone of α Centauri
Apai, D., Nardiello, D., Bedin, L. R. 2021, The Astrophysical Journal TESS Observations of the Luhman 16 AB Brown Dwarf System: Rotational Periods, Lightcurve Evolution, and Zonal Circulation
Dietrich, J., Apai, D. 2021, The Astronomical Journal An Integrated Analysis with Predictions on the Architecture of the τ Ceti Planetary System, Including a Habitable Zone Planet
Lew, Ben W. P., Apai, Dániel, Marley, Mark, Saumon, Didier, Schneider, Glenn, Zhou, Yifan, Cowan, Nicolas B., Karalidi, Theodora, Manjavacas, Elena, Bedin, L. R., & Miles-Páez, Paulo A. 2020, The Astrophysical Journal. Cloud Atlas: Unraveling the Vertical Cloud Structure with the Time-series Spectrophotometry of an Unusually Red Brown Dwarf
McGruder, Chima D., López-Morales, Mercedes, Espinoza, Néstor, Rackham, Benjamin V., Apai, Dániel, Jordán, Andrés, Osip, David J., Alam, Munazza K., Bixel, Alex, Fortney, Jonathan J., Henry, Gregory W., Kirk, James, Lewis, Nikole K., Rodler, Florian, & Weaver, Ian C. 2020, The Astronomical Journal. ACCESS: Confirmation of No Potassium in the Atmosphere of WASP-31b
Tremblin, P., Phillips, M. W., Emery, A., Baraffe, I., Lew, B. W. P., Apai, D., Biller, B. A., & Bonnefoy, M. 2020, Astronomy and Astrophysics. Rotational spectral modulation of cloudless atmospheres for L/T brown dwarfs and extrasolar giant planets
Wagner, Kevin, Apai, Dániel, Kasper, Markus, McClure, Melissa, Robberto, Massimo, & Currie, Thayne 2020, The Astrophysical Journal. Direct Imaging Discovery of a Young Brown Dwarf Companion to an A2V Star
Yan, F., Espinoza, N., Molaverdikhani, K., Henning, Th., Mancini, L., Mallonn, M., Rackham, B. V., Apai, D., Jordán, A., Mollière, P., Chen, G., Carone, L., & Reiners, A. 2020, Astronomy and Astrophysics. LBT transmission spectroscopy of HAT-P-12b. Confirmation of a cloudy atmosphere with no significant alkali features
Dietrich, Jeremy & Apai, Dániel 2020, The Astronomical Journal. Hidden Worlds: Dynamical Architecture Predictions of Undetected Planets in Multi-planet Systems and Applications to TESS Systems
Zhou, Yifan, Bowler, Brendan P., Morley, Caroline V., Apai, Dániel, Kataria, Tiffany, Bryan, Marta L., & Benneke, Björn 2020, The Astronomical Journal. Spectral Variability of VHS J1256-1257b from 1 to 5 μm
Meusinger, H., Rudolf, C., Stecklum, B., Hoeft, M., Mauersberger, R., & Apai, D. 2020, Astronomy and Astrophysics. The galaxy population within the virial radius of the Perseus cluster
Mulders, Gijs D., O'Brien, David P., Ciesla, Fred J., Apai, Dániel, & Pascucci, Ilaria 2020, The Astrophysical Journal. Earths in Other Solar Systems' N-body Simulations: The Role of Orbital Damping in Reproducing the Kepler Planetary Systems
Bixel, Alex & Apai, Dániel 2020, The Astrophysical Journal. Testing Earthlike Atmospheric Evolution on Exo-Earths through Oxygen Absorption: Required Sample Sizes and the Advantage of Age-based Target Selection
Wagner, Kevin, Stone, Jordan, Dong, Ruobing, Ertel, Steve, Apai, Daniel, Doelman, David, Bohn, Alexander, Najita, Joan, Brittain, Sean, Kenworthy, Matthew, Keppler, Miriam, Webster, Ryan, Mailhot, Emily, & Snik, Frans 2020, The Astronomical Journal. First Images of the Protoplanetary Disk around PDS 201
Gibbs, Aidan, Bixel, Alex, Rackham, Benjamin V., Apai, Dániel, Schlecker, Martin, Espinoza, Néstor, Mancini, Luigi, Chen, Wen-Ping, Henning, Thomas, Gabor, Paul, Boyle, Richard, Perez Chavez, Jose, Mousseau, Allie, Dietrich, Jeremy, Jay Socia, Quentin, Ip, Wing, Ngeow, Chow-Choong, Tsai, An-Li, Bhandare, Asmita, Marian, Victor, Baehr, Hans, Brown, Samantha, Häberle, Maximilian, Keppler, Miriam, Molaverdikhani, Karan, & Sarkis, Paula 2020, The Astronomical Journal. EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs
Zhou, Yifan, Apai, Dániel, Bedin, Luigi R., Lew, Ben W. P., Schneider, Glenn, Burgasser, Adam J., Manjavacas, Elena, Karalidi, Theodora, Metchev, Stanimir, Miles-Páez, Paulo A., Cowan, Nicolas B., Lowrance, Patrick J., & Radigan, Jacqueline 2020, The Astronomical Journal. Cloud Atlas: High-precision HST/WFC3/IR Time-resolved Observations of Directly Imaged Exoplanet HD 106906b
Lew, Ben W. P., Apai, Dániel, Zhou, Yifan, Radigan, Jacqueline, Marley, Mark, Schneider, Glenn, Cowan, Nicolas B., Miles-Páez, Paulo A., Manjavacas, Elena, Karalidi, Theodora, Bedin, L. R., Lowrance, Patrick J., & Burgasser, Adam J. 2020, The Astronomical Journal. Cloud Atlas: Weak Color Modulations Due to Rotation in the Planetary-mass Companion GU Psc b and 11 Other Brown Dwarfs
Kitzmann, Daniel, Heng, Kevin, Oreshenko, Maria, Grimm, Simon L., Apai, Dániel, Bowler, Brendan P., Burgasser, Adam J., & Marley, Mark S. 2020, The Astrophysical Journal. Helios-r2: A New Bayesian, Open-source Retrieval Model for Brown Dwarfs and Exoplanet Atmospheres
Weaver, Ian C., López-Morales, Mercedes, Espinoza, Néstor, Rackham, Benjamin V., Osip, David J., Apai, Dániel, Jordán, Andrés, Bixel, Alex, Lewis, Nikole K., Alam, Munazza K., Kirk, James, McGruder, Chima, Rodler, Florian, & Fienco, Jennifer 2020, The Astronomical Journal. ACCESS: A Visual to Near-infrared Spectrum of the Hot Jupiter WASP-43b with Evidence of H<SUB>2</SUB>O, but No Evidence of Na or K
Bixel, Alex & Apai, Dániel 2020, The Astronomical Journal. Identifying Exo-Earth Candidates in Direct Imaging Data through Bayesian Classification
Mulders, Gijs D., Mordasini, Christoph, Pascucci, Ilaria, Ciesla, Fred J., Emsenhuber, Alexandre, & Apai, Dániel 2019, The Astrophysical Journal. The Exoplanet Population Observation Simulator. II. Population Synthesis in the Era of Kepler
Miles-Páez, Paulo A., Metchev, Stanimir, Apai, Dániel, Zhou, Yifan, Manjavacas, Elena, Karalidi, Theodora, Lew, Ben W. P., Burgasser, Adam J., Bedin, Luigi R., Cowan, Nicolas, Lowrance, Patrick J., Marley, Mark S., Radigan, Jacqueline, & Schneider, Glenn 2019, The Astrophysical Journal. Cloud Atlas: Variability in and out of the Water Band in the Planetary-mass HD 203030B Points to Cloud Sedimentation in Low-gravity L Dwarfs
Boehle, A., Quanz, S. P., Lovis, C., Ségransan, D., Udry, S., & Apai, D. 2019, Astronomy and Astrophysics. Combining high-contrast imaging and radial velocities to constrain the planetary architectures of nearby stars
Bedin, L. R., Salaris, M., Anderson, J., Libralato, M., Apai, D., Nardiello, D., Rich, R. M., Bellini, A., Dieball, A., Bergeron, P., Burgasser, A. J., Milone, A. P., & Marino, A. F. 2019, Monthly Notices of the Royal Astronomical Society. The HST large programme on NGC 6752 - III. Detection of the peak of the white dwarf luminosity function
Leggett, S. K., Dupuy, Trent J., Morley, Caroline V., Marley, Mark S., Best, William M. J., Liu, Michael C., Apai, D., Casewell, S. L., Geballe, T. R., Gizis, John E., Pineda, J. Sebastian, Rieke, Marcia, & Wright, G. S. 2019, The Astrophysical Journal. 3.8 μm Imaging of 400-600 K Brown Dwarfs and Orbital Constraints for WISEP J045853.90+643452.6AB
Wagner, Kevin, Stone, Jordan M., Spalding, Eckhart, Apai, Daniel, Dong, Ruobing, Ertel, Steve, Leisenring, Jarron, & Webster, Ryan 2019, The Astrophysical Journal. Thermal Infrared Imaging of MWC 758 with the Large Binocular Telescope: Planetary-driven Spiral Arms?
Apai, Dániel, Milster, Tom D., Kim, Dae Wook, Bixel, Alex, Schneider, Glenn, Liang, Ronguang, & Arenberg, Jonathan 2019, The Astronomical Journal. A Thousand Earths: A Very Large Aperture, Ultralight Space Telescope Array for Atmospheric Biosignature Surveys
Zhou, Yifan, Apai, Dániel, Lew, Ben W. P., Schneider, Glenn, Manjavacas, Elena, Bedin, Luigi R., Cowan, Nicolas B., Marley, Mark S., Radigan, Jacqueline, Karalidi, Theodora, Lowrance, Patrick J., Miles-Páez, Paulo A., Metchev, Stanimir, & Burgasser, Adam J. 2019, The Astronomical Journal. Erratum: “Cloud Atlas: High-contrast Time-resolved Observations of Planetary-mass Companions” (<A href="https://doi.org/10.3847/1538-3881/ab037f">2019, AJ, 157, 128</A>)
Wagner, Kevin, Apai, Dániel, & Kratter, Kaitlin M. 2019, The Astrophysical Journal. On the Mass Function, Multiplicity, and Origins of Wide-orbit Giant Planets
Milone, A. P., Marino, A. F., Bedin, L. R., Anderson, J., Apai, D., Bellini, A., Dieball, A., Salaris, M., Libralato, M., Nardiello, D., Bergeron, P., Burgasser, A. J., Rees, J. M., Rich, R. M., & Richer, H. B. 2019, Monthly Notices of the Royal Astronomical Society. The HST Large Programme on NGC 6752 - II. Multiple populations at the bottom of the main sequence probed in NIR
Manjavacas, Elena, Apai, Dániel, Lew, Ben W. P., Zhou, Yifan, Schneider, Glenn, Burgasser, Adam J., Karalidi, Theodora, Miles-Páez, Paulo A., Lowrance, Patrick J., Cowan, Nicolas, Bedin, Luigi R., Marley, Mark S., Metchev, Stan, & Radigan, Jacqueline 2019, The Astrophysical Journal. Cloud Atlas: Rotational Spectral Modulations and Potential Sulfide Clouds in the Planetary-mass, Late T-type Companion Ross 458C
Bedin, L. R., Salaris, M., Rich, R. M., Richer, H., Anderson, J., Bettoni, D., Nardiello, D., Milone, A. P., Marino, A. F., Libralato, M., Bellini, A., Dieball, A., Bergeron, P., Burgasser, A. J., & Apai, D. 2019, Monthly Notices of the Royal Astronomical Society. The HST Large Programme on NGC 6752. I. Serendipitous discovery of a dwarf Galaxy in background
Zhou, Yifan, Apai, Dániel, Lew, Ben W. P., Schneider, Glenn, Manjavacas, Elena, Bedin, Luigi R., Cowan, Nicolas B., Marley, Mark S., Radigan, Jacqueline, Karalidi, Theodora, Lowrance, Patrick J., Miles-Páez, Paulo A., Metchev, Stanimir, & Burgasser, Adam J. 2019, The Astronomical Journal. Cloud Atlas: High-contrast Time-resolved Observations of Planetary-mass Companions
Manjavacas, Elena, Apai, Dániel, Zhou, Yifan, Lew, Ben W. P., Schneider, Glenn, Metchev, Stan, Miles-Páez, Paulo A., Radigan, Jacqueline, Marley, Mark S., Cowan, Nicolas, Karalidi, Theodora, Burgasser, Adam J., Bedin, Luigi R., Lowrance, Patrick J., & Kauffmann, Parker 2019, The Astronomical Journal. Cloud Atlas: Hubble Space Telescope Near-infrared Spectral Library of Brown Dwarfs, Planetary-mass Companions, and Hot Jupiters
Rackham, Benjamin V., Apai, Dániel, & Giampapa, Mark S. 2019, The Astronomical Journal. The Transit Light Source Effect. II. The Impact of Stellar Heterogeneity on Transmission Spectra of Planets Orbiting Broadly Sun-like Stars
Bixel, Alex, Rackham, Benjamin V., Apai, Dániel, Espinoza, Néstor, López-Morales, Mercedes, Osip, David, Jordán, Andrés, McGruder, Chima, & Weaver, Ian 2019, The Astronomical Journal. ACCESS: Ground-based Optical Transmission Spectroscopy of the Hot Jupiter WASP-4b
Espinoza, Néstor, Rackham, Benjamin V., Jordán, Andrés, Apai, Dániel, López-Morales, Mercedes, Osip, David J., Grimm, Simon L., Hoeijmakers, Jens, Wilson, Paul A., Bixel, Alex, McGruder, Chima, Rodler, Florian, Weaver, Ian, Lewis, Nikole K., Fortney, Jonathan J., & Fraine, Jonathan 2019, Monthly Notices of the Royal Astronomical Society. ACCESS: a featureless optical transmission spectrum for WASP-19b from Magellan/IMACS
Gibbs, Aidan, Wagner, Kevin, Apai, Daniel, Moór, Attila, Currie, Thayne, Bonnefoy, Mickäel, Langlois, Maud, & Lisse, Carey 2019, The Astronomical Journal. VLT/SPHERE Multiwavelength High-contrast Imaging of the HD 115600 Debris Disk: New Constraints on the Dust Geometry and the Presence of Young Giant Planets
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Semester | Course | Day/Time | Location | Resources | |
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Spring 2022 | -001 | Monday, Wednesday 10:00-11:15a.m. | Steward 208 | ||
Spring 2022 | PTYS/ASTR 575-001 | Monday, Wednesday 10:00-11:15a.m. | Steward 208 | ||
Fall 2021 | -1 | ||||
Spring 2017 | -1 | ||||
Spring 2017 | PTYS/ASTR 575-1 |
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