Results 51 to 60 of about 11,734 (199)
The Mass of the Vela Pulsar Progenitor and the Age of the Vela-Puppis Complex
The Astrophysical JournalThe association of the Vela Pulsar with the Vela Supernova Remnant has long supported the hypothesis that core-collapse supernovae yield neutron stars, but its surrounding stellar population now offers new insights into progenitor evolution.
Jeremiah W. Murphy +6 more
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Stellar Populations in the Magellanic Clouds [PDF]
Symposium - International Astronomical Union, 1995 There seems to be no strong evidence that the young globular clusters in the MC have metallicities differing significantly from the metallicities of MC field stars of the same age. The old globular clusters in the LMC are of the same age as, or slightly younger than, those in the outer halo of our Galaxy. It is suggested that the increase in the SFR in
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Missing Giants: Predictions on Dust-obscured Galaxy Stellar Mass Assembly Throughout Cosmic Time
The Astrophysical Journal, 2023 Due to their extremely dust-obscured nature, much uncertainty still exists surrounding the stellar mass growth and content in dusty, star-forming galaxies (DSFGs) at z > 1. In this work, we present a numerical model built using empirical data on DSFGs to
Arianna S. Long +7 more
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Stellar evolution and stellar populations
, 2019 I will overview how the theory of stellar evolution and stellar populations evolved to explain the rich features observed in large surveys of the Magellanic Clouds -- going from subtle features in colour-magnitude diagrams to striking sequences in period-magnitude diagrams.
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Starspots and Undetected Binary Stars Have Distinct Signatures in Young Stellar Associations
The Astrophysical JournalYoung stars form in associations, meaning that young stellar associations provide an ideal environment to measure the age of a nominally coeval population.
Kendall Sullivan, Adam L. Kraus
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The Astrophysical Journal LettersUsing numerical simulations of a barred disk galaxy embedded in nonspinning and spinning dark matter (DM) halos, we present a novel mechanism of “cooling” the vertical oscillations of DM particles, which acquire disk kinematics.
Xingchen Li +3 more
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The Astrophysical JournalWe present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) > 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends ...
Yasha Kaushal +15 more
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Stellar Ages: A Code to Infer Properties of Stellar Populations
The Astrophysical JournalWe present a novel statistical algorithm, Stellar Ages, which currently infers the age, metallicity, and extinction posterior distributions of stellar populations from their magnitudes.
Joseph J. Guzman +4 more
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Challenges in Stellar Population Studies [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractThe stellar populations of galaxies contain a wealth of detailed information. From the youngest, most massive stars, to almost invisible remnants, the history of star formation is encoded in the stars that make up a galaxy. Extracting some, or all, of this information has long been a goal of stellar population studies.
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