Low-Mass Companions to Nine Stars

Niedzielski, A.; Jaros, R.; Srivastava, D.; Adamów, M.; Wolszczan, A.; Villaver, E.; Maciejewski, G.; Deka-Szymankiewicz, B.

Artykuł - szczegóły

Tytuł artykułu

Low-Mass Companions to Nine Stars

Autorzy

Niedzielski A. , Jaros R. , Srivastava D. , Adamów M. , Wolszczan A. , Villaver E. , Maciejewski G. , Deka-Szymankiewicz B.

Wybrane pełne teksty z tego czasopisma

http://acta.astrouw.edu.pl/

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

We present an independent spectroscopic and radial velocity analysis for nine stars from the Pennsylvania-Toruń Planet Search. For BD+24 4697, we present an updated true companion's mass (0.16±0.02 M_⊙) as well as evidence of stellar activity. For BD+54 1640 and BD+65 1241 we present true masses of companions, m=0.15±0.04 M_⊙) and m=0.091± 0.005 M_⊙), respectively. For BD+63 974 and BD+69 935 we find low mass companions with m sin i=0.046±0.001 M_⊙) and m sin i=0.090±0.005 M_⊙). For BD+52 1281, BD+54 1382, TYC 2704-2680-1, and TYC 3525-02043-1 we present evidence of low-mass companions with m sin i of 0.115±0.006 M_⊙), 0.083±0.007 M_⊙), 0.279±0.009 M_⊙), and 0.064±0.006 M_⊙), respectively. Consequently, BD+54 1382, BD+63 974, BD+65 1241, BD+69 935 and TYC 3525-02043-1 appear to be brown dwarf host candidates.

Słowa kluczowe

stars: activity binaries: spectroscopic brown dwarfs stars: late-type stars: individual: BD+24 4697 stars: individual: BD+52 1281 stars: individual: BD+54 1382 stars: individual: BD+54 1640 stars: individual: BD+63 974 stars: individual: BD+65 1241 stars: individual: BD+69 935 stars: individual: TYC 2704-02680-1 stars: individual: TYC 3525-02043-1

Wydawca

Copernicus Foundation for Polish Astronomy

Czasopismo

Acta Astronomica

Rocznik

2025

Tom

Vol. 75, No. 2

Strony

63--95

Opis fizyczny

Bibliogr. 111 poz., tab., wykr.

Twórcy

autor

Niedzielski A.

Institute of Astronomy, Nicolaus Copernicus University in Toruń, ul. Gagarina 11, 87-100 Toruń, Poland

autor

Jaros R.

Institute of Astronomy, Nicolaus Copernicus University in Toruń, ul. Gagarina 11, 87-100 Toruń, Poland

autor

Srivastava D.

Nicolaus Copernicus Superior School, College of Astronomy and Natural Sciences in Toruń, ul. Gregorkiewicza 3, 87 -100 Toruń, Poland

autor

Adamów M.

Center for AstroPhysical Surveys, National Center for Supercomputing Applications, Urbana, IL 61801, USA

autor

Wolszczan A.

Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA
Center for Exoplanets and Habitable Worlds, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802, USA

autor

Villaver E.

Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain

autor

Maciejewski G.

Institute of Astronomy, Nicolaus Copernicus University in Toruń, ul. Gagarina 11, 87-100 Toruń, Poland

autor

Deka-Szymankiewicz B.

Institute of Astronomy, Nicolaus Copernicus University in Toruń, ul. Gagarina 11, 87-100 Toruń, Poland

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bwmeta1.element.baztech-b3343925-5306-421a-a1e6-815cb704bc4b