Results 131 to 140 of about 51,217 (241)

The frequency of planets in multiple systems

open access: yes, 2007
The frequency of planets in binaries is an important issue in the field of extrasolar planet studies, because of its relevance in estimating of the global planet population of our Galaxy and the clues it can give to our understanding of planet formation ...
Allen   +79 more
core   +2 more sources

Exoplanets in the Antarctic Sky. V. The Second Data Release of AST3-II/CHESPA and Newly Found Variables within the Southern Continuous Viewing Zone of TESS

open access: yesThe Astrophysical Journal Supplement Series
Located at Dome A, the highest point on the Antarctic plateau, China’s Kunlun station is a premier ground-based photometric observatory. Its cold, dry, and stable atmosphere allows continuous observation for over 40 days during polar winter, ideal for ...
Bixuan Zhao   +15 more
doaj   +1 more source

Formation of Be Stars via Wind Accretion: Case Study on Black Hole + Be Star Binaries

open access: yesThe Astrophysical Journal Letters
Be stars are rapidly rotating main-sequence stars that play a crucial role in understanding stellar evolution and binary interactions. In this Letter, we propose a new formation scenario for black hole (BH) + Be star binaries (hereafter BHBe binaries ...
Zhenwei Li   +7 more
doaj   +1 more source

The population of hot subdwarf stars studied with Gaia II. The Gaia DR2 catalogue of hot subluminous stars

open access: yes, 2018
Based on data from the ESA Gaia Data Release 2 (DR2) and several ground-based, multi-band photometry surveys we compiled an all-sky catalogue of $39\,800$ hot subluminous star candidates selected in Gaia DR2 by means of colour, absolute magnitude and ...
Fusillo, N. P. Gentile   +3 more
core   +1 more source

Dynamical investigations of the multiple stars

open access: yesOpen Astronomy, 2017
Two multiple stars - the quadruple star - Bootis (ADS 9173) and the triple star T Taury were investigated. The visual double star - Bootiswas studied on the basis of the Pulkovo 26-inch refractor observations 1982-2013.
Kiyaeva Olga V., Zhuchkov Roman Ya.
doaj   +1 more source

Double Hot Jupiter Formation through Mirrored ZLK Migration in Binary Star Systems: The Case of WASP-94

open access: yesThe Astrophysical Journal Letters
To date, only a handful of binary star systems are known with at least one confirmed planet orbiting each star. Such systems, however, offer a unique perspective on the stochasticity intrinsic to planet formation and evolution—particularly in twin binary
Yurou Liu, Tiger Lu, Malena Rice
doaj   +1 more source

A Deficit of Massive White Dwarfs in Gaia Astrometric Binaries

open access: yesThe Astrophysical Journal Letters
The third data release of Gaia introduced a large catalog of astrometric binaries, out of which about 3200 are likely main-sequence stars with a white dwarf (WD) companion.
Na’ama Hallakoun   +4 more
doaj   +1 more source

On the Exoplanet Yield of Gaia Astrometry

open access: yesThe Astronomical Journal
We reexamine the expected yield of Gaia astrometric planet detections using updated models for giant-planet occurrence, the local stellar population, and Gaia’s demonstrated astrometric precision. Our analysis combines a semianalytic model that clarifies
Caleb Lammers, Joshua N. Winn
doaj   +1 more source

Astrometric detection of Neutron Star Companions to High Mass X-ray Binaries [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
C. Ó Maoiléidigh   +2 more
openaire   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

open access: yes
Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

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