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Semantic Scholar Open Access 2021 22 sitasi

The orbit and stellar masses of the archetype colliding-wind binary WR 140

Joshua D Thomas N. Richardson J. Eldridge G. Schaefer J. Monnier +55 lainnya
Lihat Sumber DOI

Abstrak

We present updated orbital elements for the Wolf–Rayet (WR) binary WR 140 (HD 193793; WC7pd  + O5.5fc). The new orbital elements were derived using previously published measurements along with 160 new radial velocity measurements across the 2016 periastron passage of WR 140. Additionally, four new measurements of the orbital astrometry were collected with the CHARA Array. With these measurements, we derive stellar masses of $M_{\rm WR} = 10.31\pm 0.45 \, \mathrm{M}_\odot$ and $M_{\rm O} = 29.27\pm 1.14 \, \mathrm{M}_{\odot }$. We also include a discussion of the evolutionary history of this system from the Binary Population and Spectral Synthesis model grid to show that this WR star likely formed primarily through mass-loss in the stellar winds, with only a moderate amount of mass lost or transferred through binary interactions.

Topik & Kata Kunci

Physics

Penulis (60)

J

Joshua D Thomas

N

N. Richardson

J

J. Eldridge

G

G. Schaefer

J

J. Monnier

H

H. Sana

A

A. Moffat

P

P. Williams

M

M. Corcoran

I

I. Stevens

G

G. Weigelt

F

F. D. Zainol

N

N. Anugu

J

J. L. Bouquin

T

T. Brummelaar

F

F. Campos

A

A. Couperus

C

C. Davies

J

J. Ennis

T

T. Eversberg

O

O. Garde

T

T. Gardner

J

Joan Guarro Fl'o

S

S. Kraus

A

A. Labdon

C

C. Lanthermann

R

R. Leadbeater

T

T. Lester

C

Courtney Maki

B

Brendan McBride

D

D. Ozuyar

J

J. Ribeiro

B

B. Setterholm

B

Be. Stober

M

M. Wood

U

Uwe Zurmuhl Clarkson University

E

Embry-Riddle Aeronautical University

U

U. Auckland

G

Georgia State University

U

U. Michigan

I

Institute of Astrophysics KU Leuven

C

Centre de Recherche en Astrophysique du Quebec

U

U. Edinburgh

C

Cresst IIX-ray Astrophysics Laboratory

T

The Catholic University of America

U

U. Birmingham

M

M. P. I. F. R. Astronomy

B

Bonn

U

U. Exeter

U

U. Arizona

I

I. France

O

Observatori Puig d'Agulles Barcelona

S

Schnorringen Telescope Science Institute Waldbrol Germany

O

O. France

P

Piera Barcelona Spain

T

The Birches Torpenhow Wigton Cumbria

A

Arnprior Canada Ankara University

O

Observatorio do Centro de Informacao Geoespacial do Exercito Li Portugal

V

VdS Section Spectroscopy Germany

G

Giesen Lower Saxony Germany

Format Sitasi

APA MLA BibTeX
Thomas, J.D., Richardson, N., Eldridge, J., Schaefer, G., Monnier, J., Sana, H. et al. (2021). The orbit and stellar masses of the archetype colliding-wind binary WR 140. https://doi.org/10.1093/mnras/stab1181

Akses Cepat

Lihat di Sumber doi.org/10.1093/mnras/stab1181
Informasi Jurnal
Tahun Terbit
2021
Bahasa
en
Total Sitasi
22×
Sumber Database
Semantic Scholar
DOI
10.1093/mnras/stab1181
Akses
Open Access ✓