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Primeval very low-mass stars and brown dwarfs - VI. Population properties of metal-poor degenerate brown dwarfs [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
© 2019 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.We presented 15 new T dwarfs that were selected from UKIRT Infrared Deep Sky Survey, Visible and Infrared Survey Telescope for Astronomy, and Wide ...
Allard, F., Burgasser, A. J., Galvez-Ortiz, M. C., Lodieu, N., Osorio, M. R. Zapatero, Pinfield, D. J., Zhang, Z. H.   +6 more
core   +7 more sources

Irradiated brown dwarfs

, 2013
We have observed the post common envelope binary WD0137-349 in the near infrared $J$, $H$ and $K$ bands and have determined that the photometry varies on the system period (116 min).
Burleigh, M. R., Casewell, S. L., Dobbie, P. D., Lawrie, K. A., Maxted, P. F. L., Napiwotzki, R.   +5 more
core   +2 more sources

Brown dwarf accretion: Nonconventional star formation over very long timescales [PDF]

Serbian Astronomical Journal, 2005
We investigate the process of accretion of interstellar gas by the Galactic population of brown dwarfs over very long timescales typical for physical eschatology.
Ćirković Milan M.
doaj   +1 more source

Disks around Young Planetary-mass Objects: Ultradeep Spitzer Imaging of NGC 1333

The Astronomical Journal, 2023
We report on a sensitive infrared search for disks around isolated young planetary-mass objects (PMOs) in the NGC 1333 cluster, by stacking 70 Spitzer/IRAC frames at 3.6 and 4.5 μ m.
Aleks Scholz, Koraljka Muzic, Ray Jayawardhana, Victor Almendros-Abad, Isaac Wilson   +4 more
doaj   +1 more source

Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf

The Astrophysical Journal Letters, 2023
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 through the Backyard Worlds: Planet 9 citizen science project. Photometry from UKIRT and CatWISE give a (
Adam C. Schneider, Adam J. Burgasser, Justice Bruursema, Jeffrey A. Munn, Frederick J. Vrba, Dan Caselden, Martin Kabatnik, Austin Rothermich, Arttu Sainio, Thomas P. Bickle, Scott E. Dahm, Aaron M. Meisner, J. Davy Kirkpatrick, Genaro Suárez, Jonathan Gagné, Jacqueline K. Faherty, Johanna M. Vos, Marc J. Kuchner, Stephen J. Williams, Daniella Bardalez Gagliuffi, Christian Aganze, Chih-Chun Hsu, Christopher Theissen, Michael C. Cushing, Federico Marocco, Sarah Casewell, The Backyard Worlds: Planet 9 Collaboration   +26 more
doaj   +1 more source

The ultracool-field dwarf luminosity-function and space density from the Canada-France Brown Dwarf Survey [PDF]

, 2010
Context. Thanks to recent and ongoing large scale surveys, hundreds of brown dwarfs have been discovered in the last decade. The Canada-France Brown Dwarf Survey is a wide-field survey for cool brown dwarfs conducted with the MegaCam camera on the Canada-
Allen, Basri, Bertin, Bertin, Bouy, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burningham, Burningham, Burningham, C. J. Willott, C. Reylé, Caballero, Chabrier, Chiu, Cruz, Cruz, Dahn, Delfosse, Delorme, Delorme, Drory, E. Artigau, Fan, Felten, Freytag, Fukugita, G. J. Hill, Geballe, Geballe, Gizis, Golimowski, Gould, Joergens, Kirkpatrick, Kirkpatrick, Kirkpatrick, Knapp, L. Albert, L. Malo, Lawrence, Leggett, Luhman, Mancini, Martín, Metchev, Moraux, Nakajima, P. Delorme, Pinfield, R. Doyon, Rebolo, Reid, Robin, Ruiz, Schmidt, Skrutskie, Stauffer, Stobie, T. Forveille, Taylor, Tinney, Tinney, Vrba, Warren, West, Willott, Willott, Willott, X. Delfosse, York   +73 more
core   +6 more sources

The First Y Dwarf Data from JWST Show that Dynamic and Diabatic Processes Regulate Cold Brown Dwarf Atmospheres

The Astrophysical Journal, 2023
The James Webb Space Telescope (JWST) is now observing Y dwarfs, the coldest known brown dwarfs, with effective temperatures T _eff ≲ 475 K. The first published observations provide important information: not only is the atmospheric chemistry out of ...
S. K. Leggett, Pascal Tremblin
doaj   +1 more source

Exploring brown dwarf disks [PDF]

Astronomy & Astrophysics, 2001
4 pages, 4 figures, A&A Letters in ...
NATTA A, TESTI L
openaire   +4 more sources

Outflows and disks of brown dwarfs with SMA, CARMA and ALMA

EPJ Web of Conferences, 2013
Brown dwarfs are on the dividing line between planets and stars. Up to date, about 1,000 brown dwarfs, including the coolest known brown dwarfs with temperatures of ∼300 K as cool as the human body, have been discovered.
Tho Do D., Martín Eduardo, Ho Paul, Phan-Bao Ngoc, Lee Chin-Fei   +4 more
doaj   +1 more source

The Formation of Brown Dwarfs as Ejected Stellar Embryos [PDF]

, 2001
We conjecture that brown dwarfs are substellar objects because they have been ejected from small newborn multiple systems which have decayed in dynamical interactions.
Armitage P. J., Armitage P. J., Bo Reipurth, Boffin H. M. J., Bonnell I. A., Burkert A., Cameron A., Cathie Clarke, Clarke C. J., Clarke C. J., Comeron F., de la Fuente Marcos R., Goldman B., Halbwachs J. L., Hall S. M., Herbig G. H., Kohler R., Kroupa P., Larson R. B., Larson R. B., McDonald J. M., McDonald J. M., Pringle J. E., Reipurth B., Smith K. W., Sterzik M. F., Sterzik M. F., van Albada T. S., Watkins S. J., Watkins S. J.   +29 more
core   +2 more sources