Results 81 to 90 of about 12,083,844 (366)
The Astronomical Journal, 2022 We present an estimate of the occurrence rate of hot Jupiters (7 R _⊕ ≤ R _p ≤ 2 R _J , 0.8 ≤ P _b ≤ 10 days) around early-type M dwarfs based on stars observed by the Transiting Exoplanet Survey Satellite (TESS) during its primary mission.
Tianjun Gan +28 more
doaj +1 more source
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 +8 more
core +1 more source
Spectroscopic Detection of Carbon Monoxide in Two Late-type T Dwarfs [PDF]
, 2008 M band spectra of two late-type T dwarfs, 2MASS J09373487+2931409, and Gliese 570D, confirm evidence from photometry that photospheric CO is present at abundance levels far in excess of those predicted from chemical equilibrium. These new and unambiguous
Bishop +42 more
core +2 more sources
The Search for Brown Dwarfs around White Dwarfs [PDF]
Symposium - International Astronomical Union, 2003 The infrared search for substellar companions to nearby white dwarfs has been going on for a little more than a decade. The most recent phase has been a wide field proper motion search carried out primarily at Steward Observatory, where we are complete down to J = 18. Earlier phases included near field searches at the IRTF and Keck Observatory.
E. E. Becklin, Jay Farihi, Ben Zuckerman
openaire +3 more sources
First T dwarfs in the VISTA Hemisphere Survey [PDF]
, 2012 School of Physics & Astronomy, Queen Mary University of London, Mile End Road, London E1 4NS, United KingdomOctober 19, 2012; October 19, 2012ABSTRACTAims.The aim of the project is to improve our current knowledge of the density of T dwarfs and the shape
N. Lodieu +41 more
semanticscholar +1 more source
The impact of frailty syndrome on skeletal muscle histology: preventive effects of exercise
FEBS Open Bio, EarlyView.Frailty syndrome exacerbates skeletal muscle degeneration via increased ECM deposition and myofiber loss. This study, using a murine model, demonstrates that endurance exercise attenuates these histopathological alterations, preserving muscle integrity. Findings support exercise as a viable strategy to counteract frailty‐induced musculoskeletal decline
Fujue Ji +3 more
wiley +1 more source
Binarity at the L/T brown dwarf transition
, 2008 Current atmospheric models cannot reproduce some of the characteristics of the transition between the L dwarfs with cloudy atmospheres and the T dwarfs with dust-depleted photospheres.
Adelman-McCarthy +42 more
core +2 more sources
UVES spectra of young brown dwarfs in Cha I: radial and rotational velocities [PDF]
, 2001 Based on high-resolution UVES spectra we found that the radial velocity (RV) dispersion of nine of twelve known young bona fide and candidate brown dwarfs in the Cha I dark cloud is 2.0 km/s, i.e.
Balthasar +12 more
core +2 more sources
Proceedings of Supernovae: lights in the darkness — PoS(SUPERNOVA), 2008 Thermonuclear (type Ia) supernovae are explosions in accreting white dwarfs, but the exact scenario leading to these explosions is still unclear. An important step to clarify this point is to understand the behaviour of accreting white dwarfs in close binary systems.
Hernanz, Margarita, José, Jordi
openaire +4 more sources
Searching for planetary-mass T-dwarfs in the core of Serpens [PDF]
, 2012 We searched for isolated planetary-mass T-dwarfs in the 3Myr old Serpens Core cluster. We performed a deep imaging survey of the central part of this cluster using the WIRCam camera at the CFHT. Observations were performed through the narrow-band CH4_off
L. Spezzi +7 more
semanticscholar +1 more source