Search Results - "Burgasser, Adam J."

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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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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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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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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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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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 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 Ultracool SpeXtroscopic Survey. I. Volume-limited Spectroscopic Sample and Luminosity Function of M7−L5 Ultracool Dwarfs by Bardalez Gagliuffi, Daniella C., Burgasser, Adam J., Schmidt, Sarah J., Theissen, Christopher, Gagné, Jonathan, Gillon, Michael, Sahlmann, Johannes, Faherty, Jacqueline K., Gelino, Christopher, Cruz, Kelle L., Skrzypek, Nathalie, Looper, Dagny

“…We present a volume-limited, spectroscopically verified sample of M7−L5 ultracool dwarfs (UCDs) within 25 pc. The sample contains 410 sources, of which 93%…”
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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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FURTHER DEFINING SPECTRAL TYPE Y AND EXPLORING THE LOW-MASS END OF THE FIELD BROWN DWARF MASS FUNCTION by KIRKPATRICK, J. Davy, GELINO, Christopher R, MAINZER, Amanda K, BURGASSER, Adam J, TINNEY, C. G, PARKER, Stephen, SALTER, Graeme, CUSHING, Michael C, MACE, Gregory N, GRIFFITH, Roger L, SKRUTSKIE, Michael F, MARSH, Kenneth A, WRIGHT, Edward L, EISENHARDT, Peter R, MCLEAN, Ian S

“…We present the discovery of another seven Y dwarfs from the Wide-field Infrared Survey Explorer (WISE). Using these objects, as well as the first six WISE Y…”
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FIRE: A Facility Class Near-Infrared Echelle Spectrometer for the Magellan Telescopes by Simcoe, Robert A., Burgasser, Adam J., Schechter, Paul L., Fishner, Jason, Bernstein, Rebecca A., Bigelow, Bruce C., Pipher, Judith L., Forrest, William, McMurtry, Craig, Smith, Matthew J., Bochanski, John J.

“…ABSTRACT We describe the design, construction, and commissioning of FIRE, a 0.82-2.51 μ m echelle spectrograph for the 6.5 m Magellan Baade telescope. FIRE may…”
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JWST Imaging of the Closest Globular Clusters. II. Discovery of Brown Dwarfs in NGC 6397 and Measurement of Age from the Brown Dwarf Cooling Sequence, Using SANDee—A New Grid of Model Isochrones across the Hydrogen-burning Limit by Gerasimov, Roman, Bedin, Luigi R., Burgasser, Adam J., Apai, Daniel, Nardiello, Domenico, Alvarado, Efrain, Anderson, Jay

“…Abstract Globular clusters contain vast repositories of metal-poor stars that represent some of the oldest stellar generations in the Universe. The…”
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Prospects for Detecting Gaps in Globular Cluster Stellar Streams in External Galaxies with the Nancy Grace Roman Space Telescope by Aganze, Christian, Pearson, Sarah, Starkenburg, Tjitske, Contardo, Gabriella, Johnston, Kathryn V., Tavangar, Kiyan, Price-Whelan, Adrian M., Burgasser, Adam J.

“…Abstract Stellar streams form through the tidal disruption of satellite galaxies or globular clusters orbiting a host galaxy. Globular cluster streams are…”
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UNCOVER: JWST Spectroscopy of Three Cold Brown Dwarfs at Kiloparsec-scale Distances by Burgasser, Adam J., Bezanson, Rachel, Labbe, Ivo, Brammer, Gabriel, Cutler, Sam E., Furtak, Lukas J., Greene, Jenny E., Gerasimov, Roman, Leja, Joel, Pan, Richard, Price, Sedona H., Wang, Bingjie, Weaver, John R., Whitaker, Katherine E., Fujimoto, Seiji, Kokorev, Vasily, Dayal, Pratika, Nanayakkara, Themiya, Williams, Christina C., Marchesini, Danilo, Zitrin, Adi, van Dokkum, Pieter

“…Abstract We report JWST/NIRSpec spectra of three distant T-type brown dwarfs identified in the Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of…”
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A BROWN DWARF CENSUS FROM THE SIMP SURVEY by Robert, Jasmin, Gagné, Jonathan, Artigau, Étienne, Lafrenière, David, Nadeau, Daniel, Doyon, René, Malo, Lison, Albert, Loïc, Simard, Corinne, Gagliuffi, Daniella C. Bardalez, Burgasser, Adam J.

“…ABSTRACT We have conducted a near-infrared (NIR) proper motion survey, the Sondage Infrarouge de Mouvement Propre, in order to discover field ultracool dwarfs…”
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Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf by Schneider, Adam C., Burgasser, Adam J., Bruursema, Justice, Munn, Jeffrey A., Vrba, Frederick J., Caselden, Dan, Kabatnik, Martin, Rothermich, Austin, Sainio, Arttu, Bickle, Thomas P., Dahm, Scott E., Meisner, Aaron M., Kirkpatrick, J. Davy, Suárez, Genaro, Gagné, Jonathan, Faherty, Jacqueline K., Vos, Johanna M., Kuchner, Marc J., Williams, Stephen J., Gagliuffi, Daniella Bardalez, Aganze, Christian, Hsu, Chih-Chun, Theissen, Christopher, Cushing, Michael C., Marocco, Federico, Casewell, Sarah

“…Abstract We present the discovery of CWISE J050626.96+073842.4 (CWISE J0506+0738), an L/T transition dwarf with extremely red near-infrared colors discovered…”
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