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Stellar masses and star formation histories for 105galaxies from the Sloan Digital Sky Survey [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 We develop a new method to constrain the star formation histories, dust attenuation and stellar masses of galaxies. It is based on two stellar absorption-line indices, the 4000-Angstrom break strength and the Balmer absorption-line index Hdelta(A ...
Guinevere Kauffmann +2 more
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How well can we really estimate the stellar masses of galaxies from broad-band photometry?
Monthly Notices of the Royal Astronomical Society, 2013 The estimated stellar masses of galaxies are widely used to characterize how the galaxy pop-ulation evolves over cosmic time. If stellar masses can be estimated in a robust manner, free from any bias, global diagnostics such as the stellar mass function ...
Peter D Mitchell +2 more
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Nature, 1881 I SEND you a working hypothesis which I think will well pay for its place in the world. It is as to the heat of large stellar masses; that the imperfect conduction of the kinetic force producing gravitation through large stellar masses causes heat in them.
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1989
We have seen that a careful analysis of a star’s spectrum reveals the chemical and physical characteristics of its atmosphere, but the spectrum tells us very little about its deep interior. It gives us only the total amount of radiation emitted per second by the star; it tells us nothing about the generation and transport of this radiation through the ...
Lloyd Motz, Jefferson Hane Weaver
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We have seen that a careful analysis of a star’s spectrum reveals the chemical and physical characteristics of its atmosphere, but the spectrum tells us very little about its deep interior. It gives us only the total amount of radiation emitted per second by the star; it tells us nothing about the generation and transport of this radiation through the ...
Lloyd Motz, Jefferson Hane Weaver
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International Astronomical Union Colloquium, 1978
SummaryAlthough mass results and their evolutionary connotations now largely stem from observational realms other than astrometry, it is the combination with proper motions, kinematics, and distance calibration which significantly enhances their usefulness.
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SummaryAlthough mass results and their evolutionary connotations now largely stem from observational realms other than astrometry, it is the combination with proper motions, kinematics, and distance calibration which significantly enhances their usefulness.
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Stellar mass loss and atmospheric instability
International Astronomical Union Colloquium, 1988AbstractA review is given of rate of mass-loss values in the upper part of the Hertzsprung-Russell diagram. Near the luminosity limit of stellar existance = −10−4 M⊙ yr−1. Episodical mass loss in bright variable super- and hypergiants does not significantly increase this value. For Wolf-Rayet stars the rate of mass loss is larger by a factor 140 than
Cornelis de Jager, Hans Nieuwenhuijzen
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1978
In view of their young age and their exceedingly fast evolution, the extremely massive stars are targets of particular attention when measurements and models are linked together. Masses computed from spectroscopic orbits depend on the cube of the radial-velocity amplitude and are — more often than not in these cases — subject to the distortion of the ...
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In view of their young age and their exceedingly fast evolution, the extremely massive stars are targets of particular attention when measurements and models are linked together. Masses computed from spectroscopic orbits depend on the cube of the radial-velocity amplitude and are — more often than not in these cases — subject to the distortion of the ...
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2015
There has been considerable progress in recent years in determining stellar masses of galaxies. In this talk, I discuss various methods and their uncertainties. In particular, I will discuss the stellar masses that one can obtain from near-infrared imaging and spectroscopy, through stellar population synthesis.
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There has been considerable progress in recent years in determining stellar masses of galaxies. In this talk, I discuss various methods and their uncertainties. In particular, I will discuss the stellar masses that one can obtain from near-infrared imaging and spectroscopy, through stellar population synthesis.
openaire +1 more source