Results 1 to 10 of about 11,534 (165)
Stellar coronal mass ejections [PDF]
Serbian Astronomical Journal, 2022 Stellar coronal mass ejections (CMEs) are a growing research field, especially during the past decade. The large number of so far detected exoplanets raises the open question for the CME activity of stars, as CMEs may strongly affect ...
Leitzinger M., Odert P.
doaj +3 more sources
Galaxy Evolution with Manifold Learning [PDF]
EntropyMatter in the early Universe was nearly uniform, and galaxies emerged through the gravitational growth of small primordial density fluctuations. Astrophysics has been trying to unveil the complex physical phenomena that have caused the formation and ...
Tsutomu T. Takeuchi +2 more
doaj +2 more sources
Mass loss and stellar superwinds [PDF]
Philosophical Transactions Series 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.
Jorick Sándor Vink
exaly +4 more sources
Stellar Mass Calibrations for Local Low-mass Galaxies
The Astrophysical JournalThe stellar masses of galaxies are measured from integrated light via several methods—however, few of these methods were designed for low-mass ( M _⋆ ≲ 10 ^8 M _⊙ ) “dwarf” galaxies, whose properties (e.g., stochastic star formation, low metallicity ...
Mithi A. C. de los Reyes +12 more
doaj +3 more sources
The Astrophysical Journal, 2023 In this empirical work, we aim to quantify the systematic uncertainties in stellar-mass ( M _⋆ ) estimates made from spectral energy distribution (SED) fitting through stellar population synthesis (SPS) for galaxies in the local Universe by using the ...
M. Burak Dogruel +6 more
doaj +4 more sources
Variation in the stellar mass function along stellar streams [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Stellar streams are the inevitable end product of star cluster evolution, with the properties of a given stream being related to its progenitor. We consider how the dynamical history of a progenitor cluster, as traced by the evolution of its stellar mass function, is reflected in the resultant stream.
Jeremy J Webb, Jo Bovy
openaire +2 more sources
LATIS: The Stellar Mass–Metallicity Relation of Star-forming Galaxies at z ∼ 2.5
The Astrophysical Journal, 2023 We present the stellar mass–stellar metallicity relation for 3491 star-forming galaxies at 2 ≲ z ≲ 3 using rest-frame far-ultraviolet spectra from the Ly α Tomography IMACS Survey (LATIS).
Nima Chartab +4 more
doaj +1 more source
Universe, 2021 The growing database of exoplanets has shown us the statistical characteristics of various exoplanet populations, providing insight towards their origins.
Jonathan H. Jiang +4 more
doaj +1 more source
Wide binary stars with non-coeval components
Open Astronomy, 2022 We have the estimated masses of components of visual binaries from their spectral classification. We have selected pairs in which the less massive component looks more evolved. Spectral observations of some of these pairs were made, and at least one pair,
Malkov Oleg, Kniazev Alexey
doaj +1 more source
Stellar mass as the ‘glocal’ driver of galaxies’ stellar population properties [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT The properties of the stellar populations in a galaxy are known to correlate with the amount and the distribution of stellar mass. We take advantage of the maps of light-weighted mean stellar age $\mathit {\mathrm{ Age}_{\mathrm{ wr}}}$ and metallicity $\mathit {\mathrm{ Z}_{*\mathrm{ wr}}}$ for a sample of 362 galaxies from the
Stefano Zibetti, Anna R Gallazzi
openaire +3 more sources