Results 71 to 80 of about 3,974,322 (270)
A Census of the TW Hya Association with Gaia
The Astronomical Journal, 2023 I have used high-precision photometry and astrometry from the third data release of Gaia to perform a survey for members of the TW Hya association (TWA).
K. L. Luhman
doaj +1 more source
The Impact of Binaries on the Stellar Initial Mass Function [PDF]
The Impact of Binary Stars on Stellar Evolution, 2018 (abridged) The stellar initial mass function (IMF) can be conveniently represented as a canonical two-part power law function and is largely invariant for star formation regions evident in the Local Group of galaxies. The IMF is a hilfskonstrukt. It is a
P. Kroupa, T. Jeřábková
semanticscholar +1 more source
A Census of the Stellar Populations in the Sco-Cen Complex
The Astronomical Journal, 2021 I have used high-precision photometry and astrometry from the early installment of the third data release of Gaia (EDR3) to perform a survey for members of the stellar populations within the Sco-Cen complex, which consist of Upper Sco, UCL/LCC, the V1062
K. L. Luhman
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The Initial Mass Function of the First Stars Inferred from Extremely Metal-poor Stars [PDF]
, 2018 We compare the elemental abundance patterns of ∼200 extremely metal-poor (EMP; [Fe/H] < −3) stars to the supernova yields of metal-free stars, in order to obtain insights into the characteristic masses of the first (Population III or Pop III) stars in ...
M. Ishigaki +3 more
semanticscholar +1 more source
SDSS-IV MaNGA: the spatially resolved stellar initial mass function in ∼400 early-type galaxies [PDF]
, 2018 MaNGA provides the opportunity to make precise spatially resolved measurements of the IMF slope in galaxies owing to its unique combination of spatial resolution, wavelength coverage and sample size.
T. Parikh +22 more
semanticscholar +1 more source
The Mass to Light Ratio and the Initial Mass Function in Galactic Discs [PDF]
Astrophysics and Space Science, 2003 A low mass-to-light ratio for the baryonic component of spiral galaxies is advocated by a number of dynamical studies and by cosmological simulations of galaxy formation. We discuss the possibility of obtaining low mass-to-light ratios for the stellar component in discs, by changing the Initial Mass Function and the Star Formation History.
Rosaria Tantalo +2 more
openaire +4 more sources
UniverseWe aim to constrain the stellar initial mass function (IMF) during the epoch of reionization. To this purpose, we build up a semi-empirical model for the reionization history of the Universe based on various ingredients: the latest determination of the ...
Andrea Lapi +8 more
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The Astrophysical JournalWe present a comparative test of four widely used full spectral fitting codes, with the aim of answering the question: How robust is the retrieval of the stellar initial mass function (IMF) and other stellar properties of galaxies?
Ilaria Lonoce +3 more
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The low-mass Initial Mass Function in the 30 Doradus starburst cluster
, 2009 We present deep Hubble Space Telescope (HST) NICMOS 2 F160W band observations of the central 56*57" (14pc*14.25pc) region around R136 in the starburst cluster 30 Dor (NGC 2070) located in the Large Magellanic Cloud.
A. Moneti +41 more
core +1 more source
Universal Upper End of the Stellar Initial Mass Function in the Young and Compact LEGUS Clusters
The Astrophysical Journal, 2023 We investigate the variation in the upper end of the stellar initial mass function (uIMF) in 375 young and compact star clusters in five nearby galaxies within ∼5 Mpc. All the young stellar clusters (YSCs) in the sample have ages ≲ 4 Myr and masses above
Dooseok Escher Jung +23 more
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