| Name | 015289 |
| Title | Measurement of the Interstellar Absorption Spectrum toward Sco X-1 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0152890101 |
| DOI | https://doi.org/10.5270/esa-rzo8il9 |
| Author | European Space Agency |
| Description | Long RGS observations toward the low redshift, high galactic latitude Active Galactic Nuclei (AGNs: Mrk 421, PKS 2155 and 3C273) have shown clear evidence for what appears to be a local (zvirgul0), highly ionized absorbing medium betrayed by the O VII 1s-2p resonance transition feature seen at 21.6A. While the detection of such a gas is indeed enticing, we currently cannot entirely rule out the possibility that the spectral feature is partially of interstellar origin, due to the lack of an appropriate control sample dataset of comparable statistics. We propose that XMM/Newton perform a short pointing toward the low mass X-Ray binary (LMXB) Sco X-1, in which the RGS detectors are read out frequently enough to avoid event pileup. |
| Publication | No observations found associated with the current proposal |
| Instrument | RGS1, RGS2 |
| Temporal Coverage | 2003-03-03T16:13:50Z/2003-03-04T02:03:51Z |
| 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 | 2004-03-25T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2004, Measurement Of The Interstellar Absorption Spectrum Toward Sco X-1, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-rzo8il9 |