The bright optical companion to the eclipsing millisecond pulsar in NGC 6397

Дата и время публикации : 2001-08-15T13:35:08Z

Авторы публикации и институты :
Francesco R. Ferraro
Andrea Possenti
Nichi D’Amico
Elena Sabbi

Оригинал статьи :http://arxiv.org/abs/astro-ph/0108252v1

Скачать pdf : http://arxiv.org/pdf/astro-ph/0108252v1

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к статье: 9 pages, 4 embedded figures, submitted to ApJ Letters
Первичная категория: astro-ph

Все категории : astro-ph

Краткий обзор статьи: We report the possible optical identification of the companion to the eclipsing millisecond pulsar PSR J1740-5340 in the globular cluster NGC 6397. A bright variable star with an anomalous red colour and optical variability which nicely correlates to the orbital period of the pulsar has been found close to the pulsar position. If confirmed, the optical light curve, reminiscent of tidal distorsions similar to those observed in detached and contact binaries, support the idea that this is the first case of a Roche lobe filling companion to a millisecond pulsar.

Category: Physics