Results 51 to 60 of about 71,825 (285)

FIRE Spectroscopy of Five Late-type T Dwarfs Discovered with the Wide-field Infrared Survey Explorer [PDF]

, 2011
We present the discovery of five late-type T dwarfs identified with the Wide-field Infrared Survey Explorer (WISE). Low-resolution near-infrared spectroscopy obtained with the Magellan Folded-port InfraRed Echellette (FIRE) reveal strong water and ...
Bauer, James M., Bochanski, John J., Burgasser, Adam J., Cushing, Michael C., Gelino, Christopher R., Griffith, Roger L., Kirkpatrick, J. Davy, Looper, Dagny L., Mainzer, A., Marsh, Kenneth A., Simcoe, Robert A., Skrutskie, Michael F., Thompson, Maggie A., Tinney, Christopher, Wright, Edward L.   +14 more
core   +3 more sources

Atmospheric Retrieval Of Cool Y Dwarfs

, 2017
Brown dwarfs' near-infrared spectra contain a wealth of information which can reveal the physical and chemical processes that occur in their atmospheres. Using a recently developed atmospheric retrieval model, we are able to constrain various molecular abundances, along with photometric radius, gravity, cloud optical depths, and temperature profiles ...
Zalesky, Joseph, Line, Michael, Schneider, Adam   +2 more
openaire   +1 more source

A deep WISE search for very late type objects and the discovery of two halo/thick-disc T dwarfs : WISE 0013+0634 and WISE 0833+0052 [PDF]

, 2013
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2013 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society.
Bejar, V. J. S., Burningham, B., Cardoso, C., Cattermole, T., Clarke, J. R. A., Day-Jones, A. C., Faherty, J., Galvez-Ortiz, M. C., Gauza, B., Gomes, J., Gromadzki, M., Irwin, M., Jenkins, J. S., Jones, H.R.A., Kurtev, R., Leggett, S.K., Littlefair, S., Lodieu, N., Lucas, P.W., Pinfield, D.J., Rebolo, R., Ruiz, M. T., Smart, R., Smith, Leigh   +23 more
core   +4 more sources

New Y and T Dwarfs from WISE Identified by Methane Imaging* ^† [PDF]

The Astrophysical Journal Supplement Series, 2018
Abstract We identify new Y- and T-type brown dwarfs from the WISE All Sky data release using images obtained in filters that divide the traditional near-infrared H and J bands into two halves—specifically and CH4l in the H and J2, and J3 in the J.
C. G. Tinney, J. Davy Kirkpatrick, Jacqueline K. Faherty, Gregory N. Mace, Mike Cushing, Christopher R. Gelino, Adam J. Burgasser, Scott S. Sheppard, Edward L. Wright   +8 more
openaire   +3 more sources

First axion bounds from a pulsating helium-rich white dwarf star [PDF]

, 2016
The Peccei-Quinn mechanism proposed to solve the CP problem of Quantum Chromodynamics has as consequence the existence of axions, hypothetical weakly interacting particles whose mass is constrained to be on the sub-eV range.
Althaus, Leandro Gabriel, Battich, Tiara, Corsico, Alejandro Hugo, Miller Bertolami, Marcelo Miguel   +3 more
core   +3 more sources

Near-Infrared Spectroscopy of the Y0 WISEP J173835.52+273258.9 and the Y1 WISE J035000.32-565830.2: the Importance of Non-Equilibrium Chemistry [PDF]

, 2016
We present new near-infrared spectra, obtained at Gemini Observatory, for two Y dwarfs: WISE J035000.32-565830.2 (W0350) and WISEP J173835.52+273258.9 (W1738).
Amundsen, D. S., Baraffe, I., Chabrier, G., Leggett, S. K., Marley, M. S., Morley, Caroline V., Saumon, D., Tremblin, P.   +7 more
core   +5 more sources

The 2MASS Wide-Field T Dwarf Search. IV Unting out T dwarfs with Methane Imaging

, 2005
We present first results from a major program of methane filter photometry for low-mass stars and brown dwarfs. The definition of a new methane filter photometric system is described.
Adam J. Burgasser, C. G. Tinney, Delfosse X., J. Davy Kirkpatrick, Jones H. R. A., Jones H. R. A., Low C., Michael W. McElwain, Tinney C. G.   +8 more
core   +1 more source

The Coldest Known Y Dwarfs: Estimates of Their Effective Temperatures

The Astrophysical Journal
For a decade there has been a factor of 2.5 gap in luminosity between the 275 K WISE J085510.83-071442.5 and all other Y dwarfs, with T _eff  ≳ 350 K. Recently, three objects were found that may fall in this gap.
S. K. Leggett
doaj   +1 more source

Four new T dwarfs identified in PanSTARRS 1 commissioning data

, 2011
A complete well-defined sample of ultracool dwarfs is one of the key science programs of the Pan-STARRS 1 optical survey telescope (PS1). Here we combine PS1 commissioning data with 2MASS to conduct a proper motion search (0.1--2.0\arcsec/yr) for nearby ...
Bowler, Brendan P., Burgett, W. S., Chambers, K. C., Deacon, Niall R., Flewelling, H., Goldman, Bertrand, Kaiser, N., Liu, Michael C., Lupton, R. H., Magnier, Eugene A., Morgan, J. S., Price, P. A., Redstone, Joshua A., Sweeney, W. E., Tonry, J. L., Wainscoat, R. J., Waters, C.   +16 more
core   +1 more source

Why human connection is the true metric of research success

FEBS Open Bio, EarlyView.
Human‐centred mentorship can be shaped by mentor attributes, actions, intrinsic drive and career ambition. Drawing on reflections across Singapore and France, as well as workshop insights from FEBS‐IUBMB ENABLE 2024, this article shows that human‐centred mentorship creates the conditions for sustainable growth, well‐being and retention in research ...
Timothy Lin Yun Tan, Mattias Wei Ren Kon, Xavier Coumoul, Fun Man Fung   +3 more
wiley   +1 more source