Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. I. Classifying Low-mass Host Stars Observed during Campaigns 1–7 [PDF]
, 2017 We present near-infrared spectra for 144 candidate planetary systems identified during Campaigns 1–7 of the NASA K2 Mission. The goal of the survey was to characterize planets orbiting low-mass stars, but our Infrared Telescope Facility/SpeX and Palomar ...
C. Dressing +6 more
semanticscholar +1 more source
On the mass segregation of stars and brown dwarfs in Taurus [PDF]
, 2010 We use the new minimum spanning tree (MST) method to look for mass segregation in the Taurus association. The method computes the ratio of MST lengths of any chosen subset of objects, including the most massive stars and brown dwarfs, to the MST lengths ...
Adams +54 more
core +2 more sources
The Search for Low-mass Companions of B Stars in the Carina Nebula Cluster Trumpler 16 [PDF]
, 2011 We have developed lists of likely B3--A0 stars (called "late B" stars) in the young cluster Trumpler 16. The following criteria were used: location within 3' of Eta Car, an appropriate V and B-V combination, and proper motion (where available). Color and
Anthony F. J. Moffat +26 more
core +3 more sources
Enormous Li Enhancement Preceding Red Giant Phases in Low-mass Stars in the Milky Way Halo [PDF]
, 2017 Li abundances in the bulk of low-mass metal-poor stars are well reproduced by stellar evolution models adopting a constant initial abundance. However, a small number of stars have exceptionally high Li abundances, for which no convincing models have been
Haining Li +6 more
semanticscholar +1 more source
High-redshift galaxies and low-mass stars [PDF]
, 2014 The sensitivity available to near-infrared surveys has recently allowed us to probe the galaxy population at z ≈ 7 and beyond. The existing Hubble Wide Field Camera 3 (WFC3) and Visible and Infrared Survey Telescope for Astronomy (VISTA) Infrared Camera (
Bremer, Malcolm N +2 more
core +2 more sources
Symposium - International Astronomical Union, 1991 Recent results on low mass AGB stars are presented. Observed amounts of AGB mass loss imply that thermal pulses will only be encountered for stars of initial mass less than about 4M⊙ for Pop I and 3 M⊙ for Pop II. Mc – L, Me – τif, and Mc – Tb relations are summarized.
I.-Juliana Sackmann, Arnold I. Boothroyd
openaire +1 more source
HAZMAT. II. Ultraviolet Variability of Low-mass Stars in the GALEX Archive [PDF]
, 2017 The ultraviolet (UV) light from a host star influences a planet’s atmospheric photochemistry and will affect interpretations of exoplanetary spectra from future missions like the James Webb Space Telescope.
B. Miles, E. Shkolnik
semanticscholar +1 more source
Magnetic activity in the HARPS M-dwarf sample. The rotation-activity relationship for very low-mass stars through R'HK [PDF]
, 2016 Atmospheric magnetic fields in stars with convective envelopes heat stellar chromospheres. Starting with the historical Mount Wilson monitoring program, CaH&K lines have been widely used to trace stellar magnetic activity, and as a proxy for rotation ...
N. Astudillo-Defru +5 more
semanticscholar +1 more source
Efficiencies of Low‐Mass Star and Star Cluster Formation
The Astrophysical Journal, 2000 20 pages, 2 figures, accepted by ...
Matzner, Christopher D. +1 more
openaire +2 more sources
Magnetic Modeling of Inflated Low-mass Stars Using Interior Fields No Larger than ∼10 kG [PDF]
, 2017 We have previously reported on models of low-mass stars in which the presence of inflated radii is ascribed to magnetic fields that impede the onset of convection.
J. MacDonald, D. J. Mullan
semanticscholar +1 more source