منابع مشابه
Massive Star Outflows
Molecular outflows in the form of wide-angle winds and/or well-collimated jets are associated with young stellar objects of all luminosities. Independent studies have established that the mass outflow rate is proportional to L bol for Lbol = 0.3 to 10 5 L⊙, suggesting that there is a strong link between accretion and outflow for a wide range of source luminosity and there is reasonable evidence...
متن کاملMassive Molecular Outflows
Well established correlations of low-mass flows show a continuity in the high-mass regime, and mean accretion rates for L > 1000 L ⊙ are ˙ M accr ∼ 10 −4 M ⊙ yr −1. We also present a tight correlation between outflow masses and core masses, which implies that the accretion rate is to first order a linear function of the core mass. All those results support the idea that similar physical process...
متن کاملHow Massive Are Massive Compact Galaxies?
Using a sample of nine massive compact galaxies at z ∼ 2.3 with rest-frame optical spectroscopy and comprehensive U → 8μm photometry we investigate how assumptions in SED modeling change the stellar mass estimates of these galaxies, and how this affects our interpretation of their size evolution. The SEDs are fit to τ -models with a range of metallicities, dust laws, as well as different stella...
متن کاملFast neutral outflows in powerful radio galaxies : a major source of feedback in massive galaxies ⋆
We report the detection of fast (∼ 1000 km s −1), massive outflows of neutral gas observed – using the WSRT – as 21-cm H i absorption against the strong radio continuum of seven radio sources. The neutral outflows occur, in at least somes cases, at kpc distance from the nucleus, and they are most likely driven by the interactions between the expanding radio jets and the gaseous medium enshroudi...
متن کاملMassive Coronae of Galaxies
There is reason to suspect that about half of the baryons are in pressure-supported plasma in the halos of normal galaxies, drawn in by gravity along with about half of the dark matter. To be consistent with the observations this baryonic component, the corona, would have to be hotter than the kinetic temperature of the dark matter in the halo so as to produce acceptable central electron densit...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2020
ISSN: 1538-4357
DOI: 10.3847/1538-4357/aba26f