Results 41 to 50 of about 18,742 (219)
Arp 220: A Post-starburst Galaxy with Little Current Star Formation outside of Its Nuclear Disks
The Astrophysical Journal, 2023 The ultraluminous infrared galaxy Arp 220 is a late-stage merger with several tidal structures in the outskirts and two very compact, dusty nuclei that show evidence for extreme star formation and host at least one active galactic nucleus (AGN).
Rupali Chandar +10 more
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Cosmological evolution of galaxies [PDF]
, 2013 I review the subject of the cosmological evolution of galaxies, including different aspects of growth in disk galaxies, by focussing on the angular momentum problem, mergers, and their by-products. I discuss the alternative to merger-driven growth -- cold accretion and related issues.
openaire +2 more sources
The Astrophysical JournalSpatial patterns of stellar elemental abundances encode rich information about a galaxy’s formation history. We analyze the radial, vertical, and azimuthal variations of metals in stars, both today and at formation, in the FIRE-2 cosmological simulations
Russell L. Graf +3 more
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The Astrophysical JournalThe metal enrichment of a galaxy is determined by the cycle of baryons in outflows, inflows, and star formation. The relative contribution and timescale of each process sets the relationship between stellar mass, metallicity, and the star formation rate (
Nathalie A. Korhonen Cuestas +6 more
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On the origin and evolution of life in the Galaxy [PDF]
International Journal of Astrobiology, 2010 AbstractA simple stochastic model for evolution, based upon the need to pass a sequence ofncritical steps is applied to both terrestrial and extraterrestrial origins of life. In the former case, the time at which humans have emerged during the habitable period of Earth suggests a value ofn=4.
McCabe, Michael, Lucas, H.
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The Next Generation Deep Extragalactic Exploratory Public (NGDEEP) Survey
The Astrophysical Journal LettersWe present the Next Generation Deep Extragalactic Exploratory Public (NGDEEP) Survey, a deep slitless spectroscopic and imaging Cycle 1 JWST treasury survey designed to constrain feedback mechanisms in low-mass galaxies across cosmic time. NGDEEP targets
Micaela B. Bagley +47 more
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Stellar migrations and metal flows – Chemical evolution of the thin disc of a simulated Milky Way analogous galaxy [PDF]
, 2020 Fiorenzo Vincenzo, Chiaki Kobayashi
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The Astrophysical JournalThis study probes the chemical abundances of the neutron-capture elements cerium and neodymium in the inner Milky Way from an analysis of a sample of ∼2000 stars in the Galactic bulge bar spatially contained within ∣ X _Gal ∣ < 5 kpc, ∣ Y _Gal ∣ < 3.5 ...
J. V. Sales-Silva +30 more
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Revealing the Impact of Critical Stellar Central Density on Galaxy Quenching through Cosmic Time
The Astrophysical JournalIn a previous work, we investigated the structural and environmental dependence on quenching in the nearby universe. In this work, we extend our investigations to higher redshifts by combining galaxies from the Sloan Digital Sky Survey and The FourStar ...
Bingxiao Xu, Yingjie Peng
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Exploring the Gas-phase Metallicity Gradients of Star-forming Galaxies at Cosmic Noon
The Astrophysical JournalWe explore the relationships between the [O/H] gas-phase metallicity radial gradients and multiple galaxy properties for 238 star-forming galaxies at 0.6 < z < 2.6 selected from the CANDELS Ly α Emission at Reionization survey with stellar mass $8.5\lt ...
Yingjie Cheng +5 more
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