New HW Virginis Systems from the MUCHFUSS Project

V. Schaffenroth; S. Geier; I. Barbu-Barna; U. Heber; T. Kupfer; O. Cordes

New HW Virginis Systems from the MUCHFUSS Project

Solar and Stellar Astrophysics 2014-05-20 v1

Authors: V. Schaffenroth , S. Geier , I. Barbu-Barna , U. Heber , T. Kupfer , O. Cordes

Abstract

In course of the MUCHFUSS project we found two new HW Virginis systems. J192059+372220 (J1920) has an orbital period of 0.169 d and an M dwarf companion with a mass of $0.116 M_{\odot}$ . J162256+473051 (J1622) has the shortest period (0.069 d) of all known HW Virginis systems. Its companion has a mass of $0.0635\pm 0.004 M_{\odot}$ and is therefore the second close brown dwarf found orbiting a subdwarf B star.

Cite

@article{arxiv.1405.4714,
  title  = {New HW Virginis Systems from the MUCHFUSS Project},
  author = {V. Schaffenroth and S. Geier and I. Barbu-Barna and U. Heber and T. Kupfer and O. Cordes},
  journal= {arXiv preprint arXiv:1405.4714},
  year   = {2014}
}

Comments

Proceeding: 6th Meeting on Hot Subdwarf Stars and Related Objects

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