Results 71 to 80 of about 111,751 (340)

The Stellar Initial Mass Function

open access: yes, 1999
The current status of both the observational evidence and the theory of the stellar initial mass function (IMF) is reviewed, with particular attention to the two basic, apparently universal features shown by all observations of nearby stellar systems: (1) a characteristic stellar mass of the order of one solar mass, and (2) a power-law decline of the ...
openaire   +2 more sources

DESI Emission-line Galaxies: Clustering Dependence on Stellar Mass and [O II] Luminosity

open access: yesThe Astrophysical Journal
We measure the projected two-point correlation functions of emission-line galaxies (ELGs) from the Dark Energy Spectroscopic Instrument One-Percent Survey and model their dependence on stellar mass and [O II ] luminosity.
T. Hagen   +51 more
doaj   +1 more source

NeutralUniverseMachine: An Empirical Model for the Evolution of H i and H2 Gas in the Universe

open access: yesThe Astrophysical Journal, 2023
Accurately modeling the cold gas content in the universe is challenging for current theoretical models. We propose a new empirical model NeutralUniverseMachine for the evolution of H i and H _2 gas along with dark matter halos based on the ...
Hong Guo   +3 more
doaj   +1 more source

The $HI$- and $H_{2}$-to-stellar mass correlations of late- and early-type galaxies and their consistency with the observational mass functions [PDF]

open access: yes, 2018
We compile and carrefully homogenize local galaxy samples with available information on stellar, $\rm HI$ and/or $\rm H_{2}$ masses, and morphology. After processing the information on upper limits in the case of non gas detections, we determine the $\rm
Avila-Reese, Vladimir   +4 more
core   +2 more sources

Stellar mass functions of galaxies, disks and spheroids at z~0.1

open access: yes, 2016
We present the stellar mass functions (SMF) and mass densities of galaxies, and their spheroid and disk components in the local (z~0.1) universe over the range 8.9
Bluck, Asa F. L.   +3 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

The stellar mass function at low luminosities [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1987
On combine les etudes les plus recentes sur la fonction luminosite stellaire pour deriver la fonction masse d'etoiles de masse 1,0M/M○.0 ...
openaire   +1 more source

SAGAbg. III. Environmental Stellar Mass Functions, Self-quenching, and the Stellar-to-halo Mass Relation in the Dwarf Galaxy Regime

open access: yesThe Astrophysical Journal
Recent efforts have extended our view of the number and properties of satellite galaxies beyond the Local Group firmly down to M _⋆  ∼ 10 ^6 M _⊙ . A similarly complete view of the field dwarf population has lagged behind.
Erin Kado-Fong   +10 more
doaj   +1 more source

Variation of the High-mass Slope of the Stellar Initial Mass Function: Theory Meets Observations

open access: yesThe Astrophysical Journal, 2023
We present observational evidence of a correlation between the high-mass slope of the stellar initial mass function (IMF) in young star clusters and their stellar surface density, σ _* .
Sami Dib
doaj   +1 more source

A Simple Technique for Predicting High-Redshift Galaxy Evolution

open access: yes, 2015
We show that the ratio of galaxies' specific star formation rates (SSFRs) to their host halos' specific mass accretion rates (SMARs) strongly constrains how the galaxies' stellar masses, specific star formation rates, and host halo masses evolve over ...
Behroozi, Peter S., Silk, Joseph
core   +2 more sources

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