Results 121 to 130 of about 1,220,192 (373)

White dwarfs in the WTS: Eclipsing binaries

EPJ Web of Conferences, 2013
We have identified photometric white dwarf candidates in the WFCAM transit survey through a reduced proper motion versus colour approach. Box-fitting with parameters adjusted to detect the unique signature of a white dwarf + planet/brown dwarf transit ...
Burleigh M.R., Koppenhoefer J., Saglia R.P., Steele P.R., Cappetta M.   +4 more
doaj   +1 more source

An Investigation of New Brown Dwarf Spectral Binary Candidates From the Backyard Worlds: Planet 9 Citizen Science Initiative

The Astronomical Journal, 2023
We present three new brown dwarf spectral-binary candidates: CWISE J072708.09−360729.2, CWISE J103604.84−514424.4, and CWISE J134446.62−732053.9, discovered by citizen scientists through the Backyard Worlds: Planet 9 project.
Alexia Bravo, Adam C. Schneider, Daniella Bardalez Gagliuffi, Adam J. Burgasser, Aaron M. Meisner, J. Davy Kirkpatrick, Jacqueline K. Faherty, Marc J. Kuchner, Dan Caselden, Arttu Sainio, Les Hamlet, The Backyard Worlds: Planet 9 Collaboration   +11 more
doaj   +1 more source

X-ray Emission near the Substellar Limit: The sigma Orionis and Taurus Star Forming Regions

, 2002
We have carried out an extensive search for X-ray emission from young, very low-mass objects near and beyond the substellar limit, making use of archived ROSAT PSPC and HRI observations pointed at Brown Dwarfs and Brown Dwarf candidates in the young ...
B. Stelzer, Barrado y Navascues, Basri, Béjar, Béjar, Comerón, Cruddace, Elias, F. Mokler, Feigelson, Fleming, Garmire, Gizis, Imanishi, Joergens, Kenyon, Lee, Leggett, Martín, Martín, Muench, Natta, Neuhäuser, Neuhäuser, Neuhäuser, Neuhäuser, Preibisch, Preibisch, Preibisch, Reid, Rutledge, Stelzer, Walter, Wilking, Zapatero Osorio, Zapatero Osorio   +35 more
core   +1 more source

Photospheric activity, rotation and magnetic interaction in LHS 6343 A [PDF]

, 2013
Context. The Kepler mission has recently discovered a brown dwarf companion transiting one member of the M4V+M5V visual binary system LHS 6343 AB with an orbital period of 12.71 days. Aims.
Herrero, E., Jordi, C., Lanza, A. F., Morales, J. C., Ribas, I.   +4 more
core   +1 more source

THE TRENDS HIGH-CONTRAST IMAGING SURVEY. VI. DISCOVERY OF A MASS, AGE, AND METALLICITY BENCHMARK BROWN DWARF [PDF]

, 2016
The mass and age of substellar objects are degenerate parameters leaving the evolutionary state of brown dwarfs ambiguous without additional information. Theoretical models are normally used to help distinguish between old, massive brown dwarfs and young,
J. Crepp, E. Gonzales, Eric B. Bechter, B. Montet, J. Johnson, D. Piskorz, A. Howard, H. Isaacson   +7 more
semanticscholar   +1 more source

Brown dwarf disks with ALMA: evidence for truncated dust disks in Ophiuchus (Corrigendum) [PDF]

Astronomy & Astrophysics, 2016
The study of the properties of disks around young brown dwarfs can provide important clues on the formation of these very low-mass objects and on the possibility of forming planetary systems around them.
L. Testi, A. Natta, A. Natta, A. Scholz, M. Tazzari, L. Ricci, I. D. G. Monsalvo   +6 more
semanticscholar   +1 more source

Pulsating young brown dwarfs [PDF]

Astronomy & Astrophysics, 2005
5 pages, 3 figures, A&A Letters (in press)
Francesco Palla, Isabelle Baraffe
openaire   +4 more sources

Enablers and Constraints of Environmental Sustainability Integration: A Structuration Perspective on Professional Sports Organizations

Business Strategy and the Environment, EarlyView.
ABSTRACT Integrating environmental sustainability (ES) into organizational strategies and operations remains a persistent challenge, particularly in fields where environmental concerns are not yet embedded within dominant institutional norms and standards of behavior. In such contexts, ES risks being overshadowed by economic and operational priorities,
Niccolò Maria Todaro, Gianluca Gionfriddo, Owais Ur Rehman Khan, Tiberio Daddi   +3 more
wiley   +1 more source

BROWN DWARFS: MYSTERY AND SHOW

Odessa Astronomical Publications, 2017
Results of the numerical simulation of the spectrum of the brown dwarf candidate Teide 1 discovered by Rebolo et al. (1995) are discussed.
Ya. V. Pavlenko
doaj   +1 more source

Evidence for accretion in a nearby, young brown dwarf

, 2009
We report on the discovery of the young, nearby, brown dwarf 2MASS J0041353$-$562112. The object has a spectral type of M7.5, it shows Li absorption and signatures of accretion, which implies that it still has a disk and suggests an age below 10 Myr. The
Aarnio, Ansgar Reiners, Baraffe, Burrows, Faherty, Golimowski, Herczeg, Jayawardhana, Jayawardhana, Lowrance, Mamajek, McGehee, Millan-Gabet, Mohanty, Mohanty, Muzerolle, Muzerolle, Muzerolle, Padoan, Phan Bao, Reiners, Reipurth, Schmidt, Scholz, Torres, Whelan   +25 more
core   +1 more source