Results 11 to 20 of about 3,090,264 (407)

Evolution Through the Post-starburst Phase: Using Post-starburst Galaxies as Laboratories for Understanding the Processes that Drive Galaxy Evolution [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2021
Post-starburst (or “E+A”) galaxies trace the fastest and most dramatic processes in galaxy evolution. Recent work studying the evolution of galaxies through this phase has revealed insights on how galaxies undergo structural and stellar population ...
K. D. French
semanticscholar   +1 more source

Voronoi volume function: a new probe of cosmology and galaxy evolution [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2020
We study the Voronoi volume function (VVF) – the distribution of cell volumes (or inverse local number density) in the Voronoi tessellation of any set of cosmological tracers (galaxies/haloes).
A. Paranjape, S. Alam
semanticscholar   +1 more source

On the Root Cause of the Host “Mass Step” in the Hubble Residuals of Type Ia Supernovae

open access: yesThe Astrophysical Journal, 2023
It is well established that the Hubble residuals of Type Ia supernovae (SNe Ia) show the luminosity step with respect to their host galaxy stellar masses.
Chul Chung   +6 more
doaj   +1 more source

Understanding Galaxy Evolution Through Emission Lines [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2019
We review the use of emission lines for understanding galaxy evolution, focusing on excitation source, metallicity, ionization parameter, ISM pressure, and electron density.
L. Kewley, D. Nicholls, R. Sutherland
semanticscholar   +1 more source

Chemical Homogeneity of Wide Binary Systems: An Approach from Near-Infrared Spectroscopy

open access: yesThe Astronomical Journal, 2023
Wide binaries, with separations between the two stars from a few au to more than several thousand au, are valuable objects for various research topics in Galactic astronomy.
Dongwook Lim   +4 more
doaj   +1 more source

Unraveling Joint Evolution of Bars, Star Formation, and Active Galactic Nuclei of Disk Galaxies

open access: yesThe Astrophysical Journal, 2023
We aim to unravel the interplay between bars, star formation (SF), and active galactic nuclei (AGNs) in barred galaxies. To this end, we utilize the SDSS DR12 to select a sample of nearby (0.02 < z < 0.06) disk galaxies that are suitable for bar ...
Woong-Bae G. Zee   +3 more
doaj   +1 more source

CEERS Key Paper. I. An Early Look into the First 500 Myr of Galaxy Formation with JWST [PDF]

open access: yesAstrophysical Journal Letters, 2022
We present an investigation into the first 500 Myr of galaxy evolution from the Cosmic Evolution Early Release Science (CEERS) survey. CEERS, one of 13 JWST ERS programs, targets galaxy formation from z ∼ 0.5 to >10 using several imaging and ...
S. Finkelstein   +66 more
semanticscholar   +1 more source

Fractional yields inferred from halo and thick disk stars [PDF]

open access: yesSerbian Astronomical Journal, 2013
Linear [Q/H]-[O/H] relations, Q = Na, Mg, Si, Ca, Ti, Cr, Fe, Ni, are inferred from a sample (N = 67) of recently studied FGK-type dwarf stars in the solar neighbourhood including different populations (Nissen and Schuster 2010, Ramirez et al ...
Caimmi R.
doaj   +1 more source

The evolution of galaxy sizes [PDF]

open access: yesProceedings of the International Astronomical Union, 2012
AbstractWe present a study of galaxy sizes in the local Universe as a function of galaxy environment, comparing clusters and the general field. Galaxies with radii and masses comparable to high-z massive and compact galaxies represent 4.4% of all galaxies more massive than 3 × 1010M⊙ in the field.
B. Poggianti   +12 more
openaire   +4 more sources

Rejuvenating Star Formation Activity in an Early-type Dwarf Galaxy, LEDA 1915372, with Accreted H i Gas

open access: yesThe Astrophysical Journal Letters, 2023
We report a rare astrophysical phenomenon, in which an early-type dwarf galaxy (dE), LEDA 1915372, is accreting gas from a nearby star-forming dwarf galaxy, MRK 0689, and is rejuvenating star formation activity at the center.
Sanjaya Paudel   +7 more
doaj   +1 more source

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