Results 11 to 20 of about 942 (213)
The structure of accreted stellar streams [PDF]
ABSTRACT Many of the Milky Way’s globular clusters are likely accreted from satellite galaxies that have long since merged with the Milky Way. When these globular clusters are susceptible to tidal disruption, this process likely starts already inside the parent satellite leading to an early stellar stream within the satellite.
Yansong Qian, Yumna Arshad, Jo Bovy
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Competitive accretion in embedded stellar clusters [PDF]
11 pages, 11 figures, MNRAS in ...
Bonnell, I. A. +3 more
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Disk Accretion and the Stellar Birthline [PDF]
We present a simplified analysis of some effects of disk accretion on the early evolution of fully convective, low-mass pre-main-sequence stars. Our analysis builds on the previous seminal work of Stahler, but it differs in that the accretion of material occurs over a small area of the stellar surface, such as through a disk or magnetospheric accretion
Lee Hartmann +2 more
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COMPETITIVE ACCRETION IN A SHEET GEOMETRY AND THE STELLAR IMF [PDF]
We report a set of numerical experiments aimed at addressing the applicability of competitive accretion to explain the high-mass end of the stellar initial mass function in a sheet geometry with shallow gravitational potential, in contrast to most previous simulations which have assumed formation in a cluster gravitational potential.
Hsu, Wen-hsin +3 more
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The Accretion Origin of the Milky Way’s Stellar Halo [PDF]
Submitted to the Astrophysical Journal.
Bell, Eric F. +17 more
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Accretion from Stellar Winds [PDF]
AbstractRecent calculations have demonstrated that accretion from a stellar wind is very probably unsteady. The average rate of accretion of angular momentum is lower by about a factor 5 than the rate at which angular momentum is deposited into the Bondi-Hoyle accretion cylinder.
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Accretion of stellar winds onto Sgr A* [PDF]
AbstractWe report a 3-dimensional numerical study of the accretion of stellar winds onto Sgr A*, the super-massive black hole at the centre of our Galaxy. Compared with previous investigations, we allow the stars to be on realistic orbits, include the recently discovered slow wind sources, and allow for optically thin radiative cooling.
Cuadra, J, Nayakshin, S
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Contributions to the accreted stellar halo: an atlas of stellar deposition [PDF]
15 pages, accepted version, discussion ...
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PROBING STELLAR ACCRETION WITH MID-INFRARED HYDROGEN LINES
In this paper we investigate the origin of the mid-infrared (IR) hydrogen recombination lines for a sample of 114 disks in different evolutionary stages (full, transitional and debris disks) collected from the {\it Spitzer} archive. We focus on the two brighter {H~{\sc i}} lines observed in the {\it Spitzer} spectra, the {H~{\sc i}}(7-6) at 12.37$μ$m ...
Meijerink, R. +29 more
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Accretion in stellar clusters and the IMF
8 pages, 4 figures, MNRAS in ...
Bonnell, I. A. +3 more
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