A GBT Survey of the HALOGAS Galaxies and Their Environments. I. Revealing the Full Extent of H i around NGC 891, NGC 925, NGC 4414, and NGC 4565
نویسندگان
چکیده
منابع مشابه
Lopsided galaxies : the case of NGC 891
It has been known for a long time that a large fraction of disc galaxies are lopsided. We simulate three different mechanisms that can induce lopsidedness: flyby interactions, gas accretion from cosmological filaments and ram pressure from the intergalactic medium. Comparing the morphologies, HI spectrum, kinematics and m = 1 Fourier components, we find that all of these mechanisms can induce l...
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We present one-zone chemical evolution models for two dwarf starburst galaxies, NGC 1705 and NGC 1569. Though especially designed for the inner ∼ 1 kpc region, where numerous H II regions and most of the stars are observed, the models also account for the presence of extended gaseous and dark matter haloes, and properly compute the binding energy of the gas heated by supernova explosions. Using...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2018
ISSN: 1538-4357
DOI: 10.3847/1538-4357/aad816