Results 11 to 20 of about 2,560 (288)
Competitive accretion in embedded stellar clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 11 pages, 11 figures, MNRAS in ...
Bonnell, I. A. +3 more
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Accretion‐powered Stellar Winds. II. Numerical Solutions for Stellar Wind Torques [PDF]
The Astrophysical Journal, 2008 [Abridged] In order to explain the slow rotation observed in a large fraction of accreting pre-main-sequence stars (CTTSs), we explore the role of stellar winds in torquing down the stars. For this mechanism to be effective, the stellar winds need to have relatively high outflow rates, and thus would likely be powered by the accretion process itself ...
Matt, Sean P., Pudritz, Ralph E.
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Nonstationary magnetic microstructures in stellar thin accretion disks [PDF]
Physical Review E, 2013 14 text pages, 5 figures, to be published on ...
MONTANI, Giovanni, PETITTA, JACOPO
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Stellar capture by an accretion disc [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 Long-term evolution of a stellar orbit captured by a massive galactic center via successive interactions with an accretion disc has been examined. An analytical solution describing evolution of the stellar orbital parameters during the initial stage of the capture was found.
Vokrouhlicky, D., Karas, V.
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Disk Accretion and the Stellar Birthline [PDF]
The 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
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Accretion from Stellar Winds [PDF]
International 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.
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PROBING STELLAR ACCRETION WITH MID-INFRARED HYDROGEN LINES
The 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$ $m ...
Meijerink, R. +29 more
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Galactic Centre stellar winds and Sgr A* accretion [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 (ABRIDGED) We present in detail our new 3D numerical models for the accretion of stellar winds on to Sgr A*. In our most sophisticated models, we put stars on realistic orbits around Sgr A*, include `slow' winds (300 km/s), and account for radiative cooling. We first model only one phase `fast' stellar winds (1000 km/s). For wind sources fixed in space,
Cuadra, J. +3 more
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ACCRETION ONTO THE FIRST STELLAR-MASS BLACK HOLES [PDF]
The Astrophysical Journal, 2009 4 pages, 4 figures, submitted to ApJ Letters, see http://slac.stanford.edu/~malvarez/FirstBH for high resolution figures and ...
Alvarez, Marcelo A. +2 more
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Accretion in Young Stellar/Substellar Objects
The Astrophysical Journal, 2003 We present a study of accretion in a sample of 45 young, low mass objects in a variety of star forming regions and young associations, about half of which are likely substellar. Based primarily on the presence of broad, asymmetric Halpha emission, we have identified 13 objects (~30% of our sample) which are strong candidates for ongoing accretion.
Muzerolle, James +4 more
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