Results 71 to 80 of about 574,458 (198)
The Astrophysical Journal, 2023 In this manuscript, central BH mass is determined in the tidal disruption event (TDE) candidate SDSS J0159, through the 9 yr long variabilities, in order to check whether the virial BH mass is consistent with the mass estimated by other independent ...
XueGuang Zhang
doaj +1 more source
STELLAR MASS DEPENDENT DISK DISPERSAL [PDF]
The Astrophysical Journal, 2009 We use published optical spectral and IR excess data from nine young clusters and associations to study the stellar mass dependent dispersal of circumstellar disks. All clusters older than ~3 Myr show a decrease in disk fraction with increasing stellar mass for Solar to higher mass stars.
Kennedy, Grant, Kenyon, Scott J
openaire +5 more sources
The Astronomical JournalThe upcoming all-sky infrared spectrophotometric SPHEREx mission is set to provide spatially resolved stellar mass maps of nearby galaxies, offering more detailed insights than integrated light observations.
Jeong Hwan Lee +9 more
doaj +1 more source
The Astrophysical Journal, 2023 Eta Carinae ( η Car) exhibits a unique set of P Cygni profiles with both broad and narrow components. Over many decades, the spectrum has changed—there has been an increase in observed continuum fluxes and a decrease in Fe ii and H i emission-line ...
Augusto Damineli +25 more
doaj +1 more source
Fuel Efficient Galaxies: Sustaining Star Formation with Stellar Mass Loss [PDF]
, 2010 We examine the importance of secular stellar mass loss for fueling ongoing star formation in disk galaxies during the late stages of their evolution. For a galaxy of a given stellar mass, we calculate the total mass loss rate of its entire stellar population using star formation histories derived from the observed evolution of the M*-star formation ...
arxiv +1 more source
The stellar mass assembly of galaxies from z=0 to z=4. Analysis of a sample selected in the rest-frame near-infrared with Spitzer [PDF]
, 2008 Using a sample of ~28,000 sources selected at 3.6-4.5 microns with Spitzer observations of the HDF-N, the CDF-S, and the Lockman Hole (surveyed area: ~664 arcmin^2), we study the evolution of the stellar mass content of the Universe at ...
Armando Gil de Paz +21 more
core +3 more sources
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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The scaling relation between baryonic mass and stellar disc size of morphologically late-type galaxies [PDF]
, 2017 Here I report the scaling relation between the baryonic masses and the scale lengths of stellar discs from $\sim$1000 morphologically late-type galaxies. The baryonic mass-size relation is a single power-law $R_\ast \propto M_b^{0.38}$ across $\sim$3 orders of magnitude in baryonic mass. The scatter in size at fixed baryonic mass is nearly constant and
arxiv +1 more source
, 2020 Low surface brightness galactic stellar halos provide a challenging but promising path towards unraveling the past assembly histories of individual galaxies.
Hernquist, Lars +6 more
core +1 more source
Communications Faculty Of Science University of Ankara, 1989 The stellar mass-radius relation is determined by using new data on absolute dimensions of the components of well-detached binary systems. The relation is compared with the published empirical and theoretical mass-radins relations. The location of the knee in the empirical relation is estimated in 1.66 solar mass.
Osman Demircan, Göksel Kahraman
openaire +3 more sources