arXiv Open Access 2020

Spectroscopic orbits of three dwarf barium stars

P. L. North A. Jorissen A. Escorza B. Miszalski J. Mikolajewska

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Abstrak

Barium stars are thought to result from binary evolution in systems wide enough to allow the more massive component to reach the asymptotic giant branch and eventually become a CO white dwarf. While Ba stars were initially known only among giant or subgiant stars, some were subsequently discovered also on the main sequence (and known as dwarf Ba stars). We provide here the orbital parameters of three dwarf Ba stars, completing the sample of 27 orbits published recently by Escorza et al. with these three southern targets. We show that these new orbital parameters are consistent with those of other dwarf Ba stars.

Topik & Kata Kunci

astro-ph.SR

Penulis (5)

P. L. North

A. Jorissen

A. Escorza

B. Miszalski

J. Mikolajewska

Format Sitasi

APA MLA BibTeX

North, P.L., Jorissen, A., Escorza, A., Miszalski, B., Mikolajewska, J. (2020). Spectroscopic orbits of three dwarf barium stars. https://arxiv.org/abs/2001.11319

Akses Cepat

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Informasi Jurnal

Tahun Terbit: 2020
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓