V410 Puppis: A useful laboratory for early stellar evolution

[ X ]

Tarih

2022

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Oxford Univ Press

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

New spectrometric (HERCULES) and ground-based multicolour photometric data on the multiple star V410 Puppis are combined with satellite photometry (HIPPARCOS and TESS), as well as historic astrometric observations. Absolute parameters for V410 Pup Aab are derived: M-Aa = 3.15 +/- 0.10, M-Ab = 1.83 +/- 0.08 (M-circle dot); R-Aa = 2.12 +/- 0.10, R-Ab = 1.52 +/- 0.08 (R-circle dot); a = 6.57 +/- 0.04 R-circle dot; T-Aa = 12500 +/- 1000, T-Ab = 9070 +/- 800(K), and photometric distance 350 +/- 10 (pc). We report the discovery of a low-amplitude SPB variation in the light curve and also indications of an accretion structure around V410 Pup B as well as emission cores in V410 Pup C. We argue that V410 Pup is probably a young formation connected with the Vela 2 OB Association. The combined evidence allows an age in the range 7-25 Myr from comparisons with standard stellar evolution modelling.

Açıklama

Anahtar Kelimeler

stars: binaries (including multiple) close, stars: early type, stars: individual V410 Pup

Kaynak

Monthly Notices of The Royal Astronomical Society

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

515

Sayı

4

Künye