| Name | 020450 |
| Title | DETERMINING THE NATURE OF THE PECULIAR X-RAY TRANSIENT IGR J16358-4726 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204500201 |
| DOI | https://doi.org/10.5270/esa-qepz8rn |
| Author | European Space Agency |
| Description | The transient IGR J16358-4726 was discovered on 2003 March 19 by INTEGRAL. Our March 24th CXO observation detected the transient at the 1.7e-10 erg cm^-2 s^-1 flux level (unabs; 2-10 keV) with a high absorption column (NH=3.3(1)e23 cm^-2) and a hard power law spectrum of index 0.5(1). A strong flux modulation with a period of 5860(50)s and PTP pulse fraction of 63(6)% (2-10 keV) is clearly visible in the x-ray data. The only NS systems known with similar spin periods are low luminosity persistent wind-fed pulsars; if this is a spin period, IGR J16358-4726 is a new kind of object. If this is an orbital period, then the system could be a compact LMXB. We request observations with XMM of IGR J16358-4726 to place constraints to the nature of this enigmatic transient. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-02-16T14:10:13Z/2004-09-05T03:09:05Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2005-09-26T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2005, Determining The Nature Of The Peculiar X-Ray Transient Igr J16358-4726, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-qepz8rn |