Outshining by Recent Star Formation Prevents the Accurate Measurement of High-z Galaxy Stellar Masses [PDF]
The Astrophysical Journal, 2023 We demonstrate that the inference of galaxy stellar masses via spectral energy distribution (SED) fitting techniques for galaxies formed in the first billion years after the Big Bang carries fundamental uncertainties owing to the loss of star formation ...
Desika Narayanan +12 more
doaj +2 more sources
Early Results from GLASS-JWST. XI. Stellar Masses and Mass-to-light Ratio of z > 7 Galaxies [PDF]
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 +2 more sources
Stellar masses and disk properties of Lupus young stellar objects traced by velocity-aligned stacked ALMA 13CO and C18O spectra [PDF]
Astronomy & Astrophysics, 2018 In recent ALMA surveys, the gas distributions and velocity structures of most of the protoplanetary disks can still not be imaged at high S/N due to the short integration time.
Koch, Patrick M. +4 more
core +5 more sources
On the Origin of Stellar Masses [PDF]
The Astrophysical Journal, 2011 It has been a longstanding problem to determine, as far as possible, the characteristic masses of stars in terms of fundamental constants; the almost complete invariance of this mass as a function of the star-forming environment suggests that this should
Adams +45 more
core +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
Reconciling observed and simulated stellar halo masses [PDF]
Astrophysical Journal, 2018 We use cosmological hydrodynamical simulations of Milky-Way-mass galaxies from the FIRE project to evaluate various strategies for estimating the mass of a galaxy's stellar halo from deep, integrated-light images.
Chan, Tsang Keung +8 more
core +7 more sources
Determining the stellar masses of submillimetre galaxies: the critical importance of star formation histories [PDF]
, 2014 Submillimetre (submm) galaxies are among the most rapidly star-forming and most massive high-redshift galaxies; thus, their properties provide important constraints on galaxy evolution models.
Bruce, Victoria A. +6 more
core +3 more sources
The orbit and stellar masses of the archetype colliding-wind binary WR 140 [PDF]
Monthly notices of the Royal Astronomical Society, 2021 We present updated orbital elements for the Wolf–Rayet (WR) binary WR 140 (HD 193793; WC7pd + O5.5fc). The new orbital elements were derived using previously published measurements along with 160 new radial velocity measurements across the 2016 ...
Joshua D Thomas +59 more
semanticscholar +1 more source
A first look at the SMACS0723 JWST ERO: spectroscopic redshifts, stellar masses and star-formation histories [PDF]
, 2022 We present a first-look analysis of the JWST ERO data in the SMACS J0723.3-7327 cluster field. We begin by reporting 10 new spectroscopic redshifts from 𝜆 obs = 1 . 8 − 5 . 2 𝜇 m NIRSpec medium-resolution ( 𝑅 = 𝜆 / Δ 𝜆 = 1000) data.
A. Carnall +11 more
semanticscholar +1 more source
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