Search Results - "Burgasser, Adam"

On the Age of the TRAPPIST-1 System by Burgasser, Adam J., Mamajek, Eric E.

“…The nearby (d = 12 pc) M8 dwarf star TRAPPIST-1 (2MASS J23062928−0502285) hosts a compact system of at least seven exoplanets with sizes similar to Earth…”
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Temperate Earth-sized planets transiting a nearby ultracool dwarf star by Gillon, Michaël, Jehin, Emmanuël, Lederer, Susan M., Delrez, Laetitia, de Wit, Julien, Burdanov, Artem, Van Grootel, Valérie, Burgasser, Adam J., Triaud, Amaury H. M. J., Opitom, Cyrielle, Demory, Brice-Olivier, Sahu, Devendra K., Bardalez Gagliuffi, Daniella, Magain, Pierre, Queloz, Didier

“…Three Earth-sized planets—receiving similar irradiation to Venus and Earth, and ideally suited for atmospheric study—have been found transiting a nearby…”
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To degeneracy and back by Burgasser, Adam J.

“…Experiments carried out at the National Ignition Facility show that the degree of degeneracy can be varied for an electron plasma. Partially degenerate…”
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Retrieval Study of Brown Dwarfs across the L-T Sequence by Lueber, Anna, Kitzmann, Daniel, Bowler, Brendan P., Burgasser, Adam J., Heng, Kevin

“…Abstract A large suite of 228 atmospheric retrievals is performed on a curated sample of 19 brown dwarfs spanning the L0–T8 spectral types using the…”
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Publisher Correction: Laser–plasma interactions: To degeneracy and back by Burgasser, Adam J.

“…An amendment to this paper has been published and can be accessed via a link at the top of the paper…”
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Helios-r2: A New Bayesian, Open-source Retrieval Model for Brown Dwarfs and Exoplanet Atmospheres by Kitzmann, Daniel, Heng, Kevin, Oreshenko, Maria, Grimm, Simon L., Apai, Dániel, Bowler, Brendan P., Burgasser, Adam J., Marley, Mark S.

“…We present an improved, hybrid CPU-GPU atmospheric retrieval code, Helios-r2, which is applicable to medium-resolution emission spectra of brown dwarfs, in…”
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Temperatures and Metallicities of M Dwarfs in the APOGEE Survey by Birky, Jessica, Hogg, David W., Mann, Andrew W., Burgasser, Adam

“…M dwarfs have enormous potential for our understanding of structure and formation on both Galactic and exoplanetary scales through their properties and…”
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Characterization of Population III Stars with Stellar Atmosphere and Evolutionary Modeling and Predictions of their Observability with the JWST by Larkin, Mikaela M., Gerasimov, Roman, Burgasser, Adam J.

“…Abstract Population III stars were the first stars to form after the Big Bang and are believed to have made the earliest contribution to the metal content of…”
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Intercomparison of Brown Dwarf Model Grids and Atmospheric Retrieval Using Machine Learning by Lueber, Anna, Kitzmann, Daniel, Fisher, Chloe E., Bowler, Brendan P., Burgasser, Adam J., Marley, Mark, Heng, Kevin

“…Abstract Understanding differences between substellar spectral data and models has proven to be a major challenge, especially for self-consistent model grids…”
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A combined transmission spectrum of the Earth-sized exoplanets TRAPPIST-1 b and c by de Wit, Julien, Wakeford, Hannah R., Gillon, Michaël, Lewis, Nikole K., Valenti, Jeff A., Demory, Brice-Olivier, Burgasser, Adam J., Burdanov, Artem, Delrez, Laetitia, Jehin, Emmanuël, Lederer, Susan M., Queloz, Didier, Triaud, Amaury H. M. J., Van Grootel, Valérie

“…Two exoplanet atmospheres examined This paper reports Hubble Space Telescope observations of the inner two of three Earth-sized exoplanets that were recently…”
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Stellar Parameters for Trappist-1 by Grootel, Valérie Van, Fernandes, Catarina S., Gillon, Michael, Jehin, Emmanuel, Manfroid, Jean, Scuflaire, Richard, Burgasser, Adam J., Barkaoui, Khalid, Benkhaldoun, Zouhair, Burdanov, Artem, Delrez, Laetitia, Demory, Brice-Olivier, Wit, Julien de, Queloz, Didier, Triaud, Amaury H. M. J.

“…TRAPPIST-1 is an ultracool dwarf star transited by seven Earth-sized planets, for which thorough characterization of atmospheric properties, surface conditions…”
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Exploring the Chemistry and Mass Function of the Globular Cluster 47 Tucanae with New Theoretical Color–Magnitude Diagrams by Gerasimov, Roman, Burgasser, Adam J., Caiazzo, Ilaria, Homeier, Derek, Richer, Harvey B., Correnti, Matteo, Heyl, Jeremy

“…Abstract Despite their shared origin, members of globular clusters display star-to-star variations in composition. The observed pattern of element abundances…”
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EXTRASOLAR STORMS: PRESSURE-DEPENDENT CHANGES IN LIGHT-CURVE PHASE IN BROWN DWARFS FROM SIMULTANEOUS HST AND SPITZER OBSERVATIONS by Yang, Hao, Apai, Dániel, Marley, Mark S., Karalidi, Theodora, Flateau, Davin, Showman, Adam P., Metchev, Stanimir, Buenzli, Esther, Radigan, Jacqueline, Artigau, Étienne, Lowrance, Patrick J., Burgasser, Adam J.

“…ABSTRACT We present Spitzer/Infrared Array Camera Ch1 and Ch2 monitoring of six brown dwarfs during eight different epochs over the course of 20 months. For…”
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Binaries and the L Dwarf/T Dwarf Transition by Burgasser, Adam J

“…High-resolution imaging has revealed an unusually high binary fraction among objects spanning the transition between the L dwarf and T dwarf spectral classes…”
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The HST Large Programme on ω Centauri. II. Internal Kinematics by Bellini, Andrea, Libralato, Mattia, Bedin, Luigi R., Milone, Antonino P., Marel, Roeland P. van der, Anderson, Jay, Apai, Dániel, Burgasser, Adam J., Marino, Anna F., Rees, Jon M.

“…Abstract In this second installment of the series, we look at the internal kinematics of the multiple stellar populations of the globular cluster ω  Centauri…”
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UNCOVER Spectroscopy Confirms the Surprising Ubiquity of Active Galactic Nuclei in Red Sources at z > 5 by Greene, Jenny E., Labbe, Ivo, Goulding, Andy D., Furtak, Lukas J., Chemerynska, Iryna, Kokorev, Vasily, Dayal, Pratika, Volonteri, Marta, Williams, Christina C., Wang, Bingjie, Setton, David J., Burgasser, Adam J., Bezanson, Rachel, Atek, Hakim, Brammer, Gabriel, Cutler, Sam E., Feldmann, Robert, Fujimoto, Seiji, Glazebrook, Karl, de Graaff, Anna, Khullar, Gourav, Leja, Joel, Marchesini, Danilo, Maseda, Michael V., Matthee, Jorryt, Miller, Tim B., Naidu, Rohan P., Nanayakkara, Themiya, Oesch, Pascal A., Pan, Richard, Papovich, Casey, Price, Sedona H., van Dokkum, Pieter, Weaver, John R., Whitaker, Katherine E., Zitrin, Adi

“…Abstract The James Webb Space Telescope is revealing a new population of dust-reddened broad-line active galactic nuclei (AGN) at redshifts z ≳ 5. Here we…”
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Early Results from GLASS-JWST. XIII. A Faint, Distant, and Cold Brown Dwarf by Nonino, Mario, Glazebrook, Karl, Burgasser, Adam J., Polenta, Gianluca, Morishita, Takahiro, Lepinzan, Marius, Castellano, Marco, Fontana, Adriano, Merlin, Emiliano, Bonchi, Andrea, Paris, Diego, Treu, Tommaso, Vulcani, Benedetta, Wang, Xin, Santini, Paola, Vanzella, Eros, Nanayakkara, Themiya, Mercurio, Amata, Rosati, Piero, Grillo, Claudio, Bradac, Marusa

“…Abstract We present the serendipitous discovery of a late T-type brown dwarf candidate in JWST NIRCam observations of the Early Release Science Abell 2744…”
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Early Time Spectropolarimetry of the Aspherical Type II Supernova SN 2023ixf by Vasylyev, Sergiy S., Yang, Yi, Filippenko, Alexei V., Patra, Kishore C., Brink, Thomas G., Wang, Lifan, Chornock, Ryan, Margutti, Raffaella, Gates, Elinor L., Burgasser, Adam J., Karpoor, Preethi R., LeBaron, Natalie, Softich, Emma, Theissen, Christopher A., Wiston, Eli, Zheng, WeiKang

“…Abstract We present six epochs of optical spectropolarimetry of the Type II supernova (SN) 2023ixf ranging from ∼2 to 15 days after the explosion. Polarimetry…”
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Discovery of the Exceptionally Short Period Ultracool Dwarf Binary LP 413-53AB by Hsu, Chih-Chun, Burgasser, Adam J., Theissen, Christopher A.

“…Abstract We report the detection of large-amplitude, rapid radial velocity (RV) variations and line-splitting in high-resolution Keck/NIRSPEC spectra of the M9…”
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The HST Large Program on ω Centauri. V. Exploring the Ultracool Dwarf Population with Stellar Atmosphere and Evolutionary Modeling by Gerasimov, Roman, Burgasser, Adam J., Homeier, Derek, Bedin, Luigi R., Rees, Jon M., Scalco, Michele, Anderson, Jay, Salaris, Maurizio

“…Abstract Brown dwarfs can serve as both clocks and chemical tracers of the evolutionary history of the Milky Way due to their continuous cooling and high…”
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