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Resolving the Source of X-Rays in the Local Group Dwarf IC 1613: X-Ray, Radio, and Optical Observations of a Luminous Supernova Remnantстатья
Информация о цитировании статьи получена из
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Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Lozinskaya T.A., Silchenko O.K., Helfand D.J., Goss W.M.
- Журнал: Astronomical Journal
- Том: 116
- Номер: 5
- Год издания: 1998
- Издательство: American Astronomical Society
- Местоположение издательства: United States
- Первая страница: 2328
- Последняя страница: 2340
- DOI: 10.1086/300580
- Аннотация: A high-resolution X-ray image of the Local Group dwarf IC 1613 reveals that the principal source of X-ray emission in this direction arises in a background cluster of galaxies, as first suggested by Eskridge. In addition, however, we find a bright X-ray source coincident with the only known supernova remnant in this galaxy, S8. Extensive ground-based follow-up observations in the radio and optical regimes are reported. We confirm the nonthermal radio spectral index of the source and measure its extent to be ~3" at 20 cm. Imaging spectrophotometric observations taken with the Multi-Pupil spectrograph of the Special Astrophysical Observatory allow us to determine the density and velocity distribution of the gas in the remnant. The simultaneous presence of luminous X-ray and optical emission suggests a relatively young remnant in which the outward-moving shock has recently encountered dense material. We note that many of this object's properties are similar to those of the brightest optical remnant in the Large Magellanic Cloud, N49.
- Добавил в систему: Сильченко Ольга Касьяновна