Results 11 to 20 of about 942 (213)

The structure of accreted stellar streams [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
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
openaire   +2 more sources

Competitive accretion in embedded stellar clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
11 pages, 11 figures, MNRAS in ...
Bonnell, I. A.   +3 more
openaire   +2 more sources

Disk Accretion and the Stellar Birthline [PDF]

open access: yesThe Astrophysical Journal, 1997
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
openaire   +1 more source

COMPETITIVE ACCRETION IN A SHEET GEOMETRY AND THE STELLAR IMF [PDF]

open access: yesThe Astrophysical Journal, 2010
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
openaire   +2 more sources

The Accretion Origin of the Milky Way’s Stellar Halo [PDF]

open access: yesThe Astrophysical Journal, 2008
Submitted to the Astrophysical Journal.
Bell, Eric F.   +17 more
openaire   +3 more sources

Accretion from Stellar Winds [PDF]

open access: yesInternational Astronomical Union Colloquium, 1988
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.
openaire   +1 more source

Accretion of stellar winds onto Sgr A* [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
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
openaire   +3 more sources

Contributions to the accreted stellar halo: an atlas of stellar deposition [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
15 pages, accepted version, discussion ...
openaire   +4 more sources

PROBING STELLAR ACCRETION WITH MID-INFRARED HYDROGEN LINES

open access: yesThe Astrophysical Journal, 2015
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
openaire   +6 more sources

Accretion in stellar clusters and the IMF

open access: yes, 2001
8 pages, 4 figures, MNRAS in ...
Bonnell, I. A.   +3 more
openaire   +2 more sources

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