Optical Identifications of Five INTEGRAL Hard X-ray Sources in the Galactic Plane Region

Astronomy and Astrophysics – Astrophysics

Scientific paper

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7 pages, 10 figures, Astronomy Letters, v. 34, p. 653

Scientific paper

10.1134/S1063773708100010

The results of optical identifications of five hard X-ray sources in the Galactic plane region from the INTEGRAL all-sky survey are presented. The X-ray data on one source (IGRJ20216+4359) are published for the first time. The optical observations were performed with 1.5-m RTT-150 telescope (TUBITAK National Observatory, Antalya, Turkey) and 6-m BTA telescope (Special Astrophysical Observatory, Nizhny Arkhyz, Russia). A blazar, three Seyfert galaxies, and a high-mass X-ray binary are among the identified sources.

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