Results 1 to 10 of about 2,874 (264)
The fragmentation properties of massive star-forming regions in 30Dor-10 at 2000 au resolution [PDF]
Nature CommunicationsThe fragmentation properties of parsec- scale clumps play a fundamental role in shaping the dense gas condensations known as cores, the immediate progenitor of stars.
Alessio Traficante +11 more
doaj +2 more sources
The Astrophysical Journal Letters, 2023 We use recent microlensing observations toward the central bulge of the Galaxy to probe the overall stellar plus brown dwarf initial mass function (IMF) in these regions well within the brown dwarf domain. We find that the IMF is consistent with the same
Gilles Chabrier, Romain Lenoble
doaj +1 more source
The Astrophysical Journal, 2023 We investigate the mass–metallicity relationship of star-forming galaxies by analyzing the absorption line spectra of ∼200,000 galaxies in the Sloan Digital Sky Survey.
Eva Sextl +3 more
doaj +1 more source
The Astrophysical Journal, 2023 Taking advantage of the Photometric objects Around Cosmic webs method developed in Paper I, we measure the excess surface density ${\bar{n}}_{2}{w}_{{\rm{p}}}$ of the photometric objects around spectroscopic objects down to stellar masses 10 ^8.0 M _ ...
Kun Xu +3 more
doaj +1 more source
Constraining the Stellar Mass Function in the Galactic Center via Mass Loss from Stellar Collisions
Advances in Astronomy, 2011 The dense concentration of stars and high-velocity dispersions in the Galactic center imply that stellar collisions frequently occur. Stellar collisions could therefore result in significant mass loss rates.
Douglas Rubin, Abraham Loeb
doaj +1 more source
Can Cuspy Dark-matter-dominated Halos Hold Cored Stellar Mass Distributions?
The Astrophysical Journal, 2023 According to the current concordance cosmological model, dark matter (DM) particles are collisionless and produce self-gravitating structures with a central cusp, which, generally, is not observed. The observed density tends to a central plateau or core,
Jorge Sánchez Almeida +2 more
doaj +1 more source
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
doaj +1 more source
The Astrophysical Journal, 2023 In this paper, by analyzing mock images from the IllustrisTNG100-1 simulation, we examine the properties of diffuse light and compare them to those of central and satellite galaxies.
Lin Tang +4 more
doaj +1 more source
The baryon budget of galaxies across the first billion years
Astronomy & AstrophysicsContext. ALMA and JWST observations of galaxies in the first billion years of the Universe provide key constraints on the baryon cycle during the epoch of reionisation. A complete census of the baryonic phases in early galaxies is essential to understand
Maio Umberto, Péroux Céline
doaj +1 more source
Astronomy & AstrophysicsContext. Cosmic voids, vast, underdense regions of the Universe, serve as unique laboratories for studying galaxy evolution in isolation. Within these voids, galaxy triplets, rare systems of three close galaxies, provide crucial insights into how local ...
Azevedo G. M. +7 more
doaj +1 more source