Swift/XRT observes the fifth outburst of the periodic supergiantfast X-ray transient IGR J11215-5952

2007/04/04 by P. Romano, L. Sidoli, V. Mangano +2 · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Gamma-ray bursts and supernovae #Pulsars and Gravitational Waves Research #astro-ph

paper · pdf · doi:10.1051/0004-6361:20077383

Accepted for Publication in Astronomy and Astrophysics Letters. 5 pages, 3 figures, 2 tables

arxiv created 2007/04/04 · openalex publication_date 2007/04/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31

Abstract

Context.The hard X-ray transient source IGR J11215-5952 was discovered in April 2005 with INTEGRAL and is a confirmed member of the new class of high mass X-ray binaries, the supergiant fast X-ray transients (SFXTs). Archival INTEGRAL data and RXTE observations have shown that the outbursts occur with a periodicity of ~330 days. Thus, IGR J11215-5952 is the first SFXT displaying periodic outbursts, possibly related to the orbital period.

Citations

• The Swift X-Ray Telescope

Cited by

• Discovery of the 51.47-d orbital period in the supergiant fast X-ray transient XTE J1739−302 with INTEGRAL
• INTEGRALANDSWIFTOBSERVATIONS OF THE Be X-RAY BINARY 4U 1036–56 (RX J1037.5–5647) AND ITS POSSIBLE RELATION WITH γ-RAY TRANSIENTS
• Monitoring Supergiant Fast X‐Ray Transients withSwift. I. Behavior Outside Outbursts

Related

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• New results with Swift on Supergiant Fast X-ray Transients
• Supergiant Fast X-ray Transients with Swift: catching outbursts and monitoring programs
• Properties of Supergiant Fast X-ray Transients as observed by Swift
• Supergiant fast X-ray transients: the Swift monitoring program