| Name | 055127 |
| Title | A relativistic iron line in the X-ray spectrum of the atoll source 4U 1705-44? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0551270201 |
| DOI | https://doi.org/10.5270/esa-p4chn93 |
| Author | European Space Agency |
| Description | We propose a ToO (triggered) observation with XMM-Newton of the atoll source 4U 1705-44 during a soft state. A Chandra observation of this source clearly indicate the presence of a broad (sigma virgul 0.7 keV) iron line. Both a relativistic disc line and a thermal Comptonization broadening fit well the line profile. The superior sensitivity at the iron line energy of XMM-Newton is needed to give a definite answer to the problem of the origin of the broad iron line. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-08-24T01:59:59Z/2008-08-24T17:14:51Z |
| 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 | 2009-10-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2009, A Relativistic Iron Line In The X-Ray Spectrum Of The Atoll Source 4U 1705-44Questionmark, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-p4chn93 |