Results 41 to 50 of about 716,854 (348)
Precise Stellar Mass and Mass-Luminosity Data [PDF]
Symposium - International Astronomical Union, 1997 Recent progress in observing and data reduction methods for precise mass and mass-luminosity determinations in binary systems are briefly reviewed. The foundations appear to have been laid for a new burst of accurate data. Detailed model simulations of the individual systems are the best way to use these data to critically test the theoretical models ...
openaire +1 more source
The masses, and the mass discrepancy of O-type stars [PDF]
, 2010 Context. The "mass discrepancy" in massive O stars represents a long-standing problem in stellar astrophysics with far-reaching implications for the chemical and dynamical feedback in galaxies. Aims.
Vink, Jorick, Weidner, Carsten
core +1 more source
The SLUGGS survey: stellar masses and effective radii of early-type galaxies from Spitzer Space Telescope 3.6 μm imaging [PDF]
, 2016 Galaxy starlight at 3.6 μm is an excellent tracer of stellar mass. Here we use the latest 3.6 μm imaging from the Spitzer Space Telescope to measure the total stellar mass and effective radii in a homogeneous way for a sample of galaxies from the SAGES ...
D. Forbes +5 more
semanticscholar +1 more source
Retired A Stars: The Effect of Stellar Evolution on the Mass Estimates of Subgiants [PDF]
, 2013 Doppler surveys have shown that the occurrence rate of Jupiter-mass planets appears to increase as a function of stellar mass. However, this result depends on the ability to accurately measure the masses of evolved stars.
Dawson +22 more
core +2 more sources
Mass loss and stellar superwinds [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017 Mass loss bridges the gap between massive stars and supernovae (SNe) in two major ways: (i) theoretically, it is the amount of mass lost that determines the mass of the star prior to explosion and (ii) observations of the circumstellar material around SNe may teach us the type of progenitor that made the SN.
openaire +3 more sources
Stellar masses calibrated with micro-lensed quasars [PDF]
, 2014 We measure the stellar mass surface densities of early type galaxies by observing the micro-lensing of macro-lensed quasars caused by individual stars, including stellar remnants, brown dwarfs and red dwarfs too faint to produce photometric or ...
Blackburne, Jeffrey A. +3 more
core +1 more source
3D-HST WFC3-SELECTED PHOTOMETRIC CATALOGS IN THE FIVE CANDELS/3D-HST FIELDS: PHOTOMETRY, PHOTOMETRIC REDSHIFTS, AND STELLAR MASSES [PDF]
, 2014 The 3D-HST and CANDELS programs have provided WFC3 and ACS spectroscopy and photometry over ≈900 arcmin2 in five fields: AEGIS, COSMOS, GOODS-North, GOODS-South, and the UKIDSS UDS field.
R. Skelton +26 more
semanticscholar +1 more source
Mass Measurements of Stellar and Intermediate-Mass Black Holes [PDF]
Space Science Reviews, 2013 28 pages, 12 figures. Accepted for publication in Space Science Reviews (DOI 10.1007/s11214-013-0030-6). Also to appear in hard cover in the Space Sciences Series of ISSI "The Physics of Accretion onto Black Holes" (Springer Publisher).
Casares, J., Jonker, P.G.
openaire +6 more sources
Parameterization of long-period eclipsing binaries
Open Astronomy, 2022 One of the important sources for independent determination of stellar masses is eclipsing binaries with components on the main sequence, and with observable spectral lines of both components.
Pakhomova Polina +4 more
doaj +1 more source
The gas metallicity gradient and the star formation activity of disc galaxies [PDF]
, 2015 We study oxygen abundance profiles of the gaseous disc components in simulated galaxies in a hierarchical universe. We analyse the disc metallicity gradients in relation to the stellar masses and star formation rates of the simulated galaxies.
Pedrosa, Susana E. +3 more
core +2 more sources