scholarly journals Gas Giant Protoplanets Formed by Disk Instability in Binary Star Systems

2006 ◽  
Vol 641 (2) ◽  
pp. 1148-1161 ◽  
Author(s):  
A. P. Boss
Keyword(s):  
Binary Star ◽  
Gas Giant

scholarly journals The Process of Stellar Tidal Disruption by Supermassive Black Holes

2021 ◽  
Vol 217 (3) ◽  
Author(s):  
E. M. Rossi ◽  
N. C. Stone ◽  
J. A. P. Law-Smith ◽  
M. Macleod ◽  
G. Lodato ◽  
...  
Keyword(s):  
Black Holes ◽  
Initial Conditions ◽  
Numerical Models ◽  
Binary Star ◽  
Tidal Disruption ◽  
Massive Black Hole ◽  
Accretion Flows ◽  
Simple Order ◽  
Order Of Magnitude ◽  
A Chain

AbstractTidal disruption events (TDEs) are among the brightest transients in the optical, ultraviolet, and X-ray sky. These flares are set into motion when a star is torn apart by the tidal field of a massive black hole, triggering a chain of events which is – so far – incompletely understood. However, the disruption process has been studied extensively for almost half a century, and unlike the later stages of a TDE, our understanding of the disruption itself is reasonably well converged. In this Chapter, we review both analytical and numerical models for stellar tidal disruption. Starting with relatively simple, order-of-magnitude physics, we review models of increasing sophistication, the semi-analytic “affine formalism,” hydrodynamic simulations of the disruption of polytropic stars, and the most recent hydrodynamic results concerning the disruption of realistic stellar models. Our review surveys the immediate aftermath of disruption in both typical and more unusual TDEs, exploring how the fate of the tidal debris changes if one considers non-main sequence stars, deeply penetrating tidal encounters, binary star systems, and sub-parabolic orbits. The stellar tidal disruption process provides the initial conditions needed to model the formation of accretion flows around quiescent massive black holes, and in some cases may also lead to directly observable emission, for example via shock breakout, gravitational waves or runaway nuclear fusion in deeply plunging TDEs.

scholarly journals CHARACTERIZING THE BROWN DWARF FORMATION CHANNELS FROM THE INITIAL MASS FUNCTION AND BINARY-STAR DYNAMICS

2015 ◽  
Vol 800 (1) ◽  
pp. 72 ◽  
Author(s):  
Ingo Thies ◽  
Jan Pflamm-Altenburg ◽  
Pavel Kroupa ◽  
Michael Marks
Keyword(s):  
Binary Star ◽  
Mass Function ◽  
Initial Mass Function ◽  
Initial Mass ◽  
Brown Dwarf

Habitable Planet Formation in Binary Star Systems

Icarus ◽  
1998 ◽  
Vol 132 (1) ◽  
pp. 196-203 ◽  
Author(s):  
Daniel P Whitmire ◽  
John J Matese ◽  
Lee Criswell ◽  
Seppo Mikkola
Keyword(s):  
Planet Formation ◽  
Binary Star ◽  
Habitable Planet

Optical spectroscopic monitoring of the Herbig Be binary star HD 200775: New maximum of activity and refinement of the orbital period

2015 ◽  
Vol 70 (3) ◽  
pp. 299-309 ◽  
Author(s):  
A. P. Bisyarina ◽  
A. M. Sobolev ◽  
S. Yu. Gorda ◽  
S. Yu. Parfenov
Keyword(s):  
Orbital Period ◽  
Binary Star ◽  
Spectroscopic Monitoring
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