Results 51 to 60 of about 574,458 (198)
Early Results from GLASS-JWST. XI. Stellar Masses and Mass-to-light Ratio of z > 7 Galaxies
The Astrophysical Journal Letters, 2023 We exploit James Webb Space Telescope (JWST) NIRCam observations from the GLASS-JWST-Early Release Science program to investigate galaxy stellar masses at z > 7.
P. Santini +29 more
doaj +1 more source
Microlensing and the Stellar Mass Function [PDF]
Publications of the Astronomical Society of the Pacific, 1996 Traditional approaches to measuring the stellar mass function (MF) are fundamentally limited because objects are detected based on their luminosity, not their mass. These methods are thereby restricted to luminous and relatively nearby stellar populations. Gravitational microlensing promises to revolutionize our understanding of the MF.
openaire +4 more sources
VIS³COS. III. Environmental effects on the star formation histories of galaxies at z ∼ 0.8 seen in [O II], Hδ, and D_n4000 [PDF]
, 2020 We present spectroscopic observations of 466 galaxies in and around a superstructure at z ∼ 0.84 targeted by the VIMOS Spectroscopic Survey of a Supercluster in the COSMOS field (VIS³COS).
Best, Philip +7 more
core +1 more source
The Independency of Stellar Mass Loss Rates on stellar X-ray Luminosity and Activity Level based on Solar X-ray flux and Solar Wind Observations [PDF]
, 2011 Stellar mass loss rates are an important input ingredient for stellar evolution models since they determine stellar evolution parameters such as stellar spin-down and increase in stellar luminosity through the lifetime of a star. Due to the lack of direct observations of stellar winds from Sun-like stars stellar X-ray luminosity and stellar level of ...
arxiv +1 more source
HSC-XXL : Baryon budget of the 136 XXL Groups and Clusters [PDF]
, 2021 We present our determination of the baryon budget for an X-ray-selected XXL sample of 136 galaxy groups and clusters spanning nearly two orders of magnitude in mass ($M_{500}\sim 10^{13}-10^{15}M_\odot$) and the redshift range $0< z < 1$. Our joint analysis is based on the combination of HSC-SSP weak-lensing mass measurements, XXL X-ray gas mass ...
arxiv +1 more source
What Is the Role of Stellar Radiative Feedback in Setting the Stellar Mass Spectrum? [PDF]
The Astrophysical Journal, 2020 Abstract In spite of decades of theoretical efforts, the physical origin of the stellar initial mass function (IMF) is still debated. Particularly crucial is the question of what sets the peak of the distribution. To investigate this issue, we perform high-resolution numerical simulations with radiative feedback exploring, in particular,
Benoît Commerçon +4 more
openaire +5 more sources
Stellar atmospheres, atmospheric extension and fundamental parameters: weighing stars using the stellar mass index [PDF]
, 2016 One of the great challenges in understanding stars is measuring their masses. The best methods for measuring stellar masses include binary interaction, asteroseismology and stellar evolution models, but these methods are not ideal for red giant and supergiant stars.
arxiv +1 more source
, 2018 Using deep images from the Hyper Suprime-Cam (HSC) survey and taking advantage of its unprecedented weak lensing capabilities, we reveal a remarkably tight connection between the stellar mass distribution of massive central galaxies and their host dark ...
Ardila, Felipe +11 more
core +1 more source
ON THE MAXIMUM MASS OF STELLAR BLACK HOLES [PDF]
The Astrophysical Journal, 2010 15 pages, ApJ ...
Jarrod R. Hurley +9 more
openaire +5 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 +1 more source