High-mass starsLow-mass starsStellar feedbackNumerical methodsSynthetic observationsStar formation is a multi-scale, multi-physics problem ranging from the size scale of molecular clouds ($\\sim$10s pc) down to the size scales of dense prestellar cores ($\\sim$0.1 pc) that are the birth ...
Low mass stars contribute an important fraction to the mass of our Galaxy. Due to the faintness of these stars a direct investigation of their space distribution and kinematics can be carried out only in the immediate solar neighbourhood. This fact emphasizes the importance of the “Third Catalog...
Structure and evolution of the first CoRoT exoplanets: Probing the Brown Dwarf/Planet overlapping mass regime stars: low-mass, brown dwarfsstars: planetary ... J Leconte,I Baraffe,G Chabrier,... - 《Astronomy & Astrophysics》 被引量: 48发表: 2009年 Fundamental Properties of Low-Mass Stars ...
Three-component models of the initial mass function (IMF) are made to consider possible origins for the observed relative variations in the numbers of brown dwarfs, solar-to-intermediate-mass stars and high-mass stars. The differences between the IMFs observed for clusters, field and remote field...
The other two stars, HD120235 and HD145316, have solar-like abundances with [Fe/H]∼0.0. Our stellar parameters and orbital solutions show that all of these stars are evolved intermediate-mass giants. Introduction The thermally stabilized iodine (I2) gas absorption cell is one of the most...
High-resolution echelle spectra have been obtained for low-mass pre-main-sequence stars in the Taurus-Auriga, Orion, Chamaeleon, Ophiuchus, and other star ... Deborah,L.,Padgett - 《Astrophysical Journal》 被引量: 71发表: 1996年 Testing the universality of star formation - I. Multiplicity in...
The observed number of ~250 X-ray detected distributed young stars agrees well with the expectation for the low-mass population associated to the B-stars in S255 and S257 as predicted by an IMF extrapolation. These results are consistent with the scenario that these two B-stars represent an...
Rotation of young stars in Cepheus OB3b However, this mass dependence is much\nweaker in our data than found in other studies. Comparison to the similarly\naged NGC 2362 shows that the low-mass stars in Cep OB3b are rotating much more\nslowly. This points to a ... SP Littlefair,T ...
Eclipsing Binaries (EBs) with one of the companions as very low mass stars (VLMS or M dwarfs) are testbeds to substantiate stellar models and evolutionary theories. Here, we present four EB candidates with F type primaries, namely, SAO 106989, HD 24465, EPIC 211682657 and HD 205403, identi...
The evolution of the baryonic and dark matter components of galaxies is not only a critical test of the hierarchical formation paradigm, but ultimately also provides new clues on the complex interplay between star formation, the cooling and heating of gas and galaxy merging processes.This book ...