Results 51 to 60 of about 307,393 (221)
Polar Circumtriple Planets and Disks around Misaligned Hierarchical Triple Stars
The Astrophysical JournalObservations of hierarchical triple-star systems show that misalignments are common both between the angular momentum vector of the inner binary and the outer companion orbit, and between the outer binary orbit and a circumtriple gas disk.
Stephen Lepp +2 more
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Asteroseismology of Close Binary Stars [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractIn this review paper, we summarise the goals of asteroseismic studies of close binary stars. We first briefly recall the basic principles of asteroseismology, and highlight how the binarity of a star can be an asset, but also a complication, for the interpretation of the stellar oscillations.
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Observational Constraints on the Formation and Evolution of Binary Stars [PDF]
, 2001 We present a high spatial resolution UV to NIR survey of 44 young binary stars in Taurus with separations of 10-1000 AU. The primary results include: (1) The relative ages of binary star components are more similar than the relative ages of randomly ...
A. M. Ghez +37 more
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Dynamically Forming Extremely Low-mass White Dwarf Binaries in Wide Orbits
The Astrophysical Journal, 2023 The detection of a 0.2 M _⊙ extremely low-mass white dwarf (EW) in a wide orbit ( P _orb ≈ 450 days) with a 1.1 M _⊙ main-sequence companion, KIC 8145411, challenges our current understanding of how EWs form. The traditional channel for EW formation, via
Ambreesh Khurana +2 more
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Proceedings of Accretion Processes in Cosmic Sources – II — PoS(APCS2018), 2019 Discoveries of planets in binary star systems showed that planetary companions are not restricted to single stars and led to a growing interest in understanding planetary formation processes in general. In binary star systems, the proto-planetary disk is truncated due to the secondary star which has strong influence on the formation of planets ...
Ákos Bazsó +3 more
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Binary Statistics and Star Formation [PDF]
Astrophysics and Space Science, 1984 AbstractBinary statistics, in particular the distributions of mass ratios and orbital periods, are reviewed in an attempt to obtain clues to possible star formation and cloud fragmentation processes. Various observational selection effects which hamper the establishment of the true distributions are discussed.
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Optical Properties and Variability of the Be X-Ray Binary CPD-29 2176
The Astrophysical Journal, 2023 Be X-ray binaries (Be XRBs) are high-mass X-ray binaries, with a neutron star or black hole orbiting and accreting material from a nonsupergiant B-star that is rotating at a near critical rate.
Clarissa M. Pavao +4 more
doaj +1 more source
, 2007 We study the effect of the neutron star spin -- kick velocity alignment observed in young radio pulsars on the coalescence rate of binary neutron stars. Two scenarios of the neutron star formation are considered: when the kick is always present and when ...
A. G. Kuranov +9 more
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The Astrophysical Journal, 2023 Nearly a hundred binary black holes (BBHs) have been discovered with gravitational-wave signals emitted at their merging events. Thus, it is quite natural to expect that significantly more abundant BBHs with wider separations remain undetected in the ...
Toshinori Hayashi +2 more
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Pairing mechanisms for binary stars
Astronomische Nachrichten, 2008 AbstractKnowledge of the binary population in stellar groupings provides important information about the outcome of the star forming process in different environments. Binarity is also a key ingredient in stellar population studies and is a prerequisite to calibrate the binary evolution channels.
Kouwenhoven, M.B.N. +4 more
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