| Proposal ID | 015138 |
| Title | X Persei: The X-ray Halo and Spectrum of a High-Latitude X-ray Binary |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0151380101 |
| DOI | https://doi.org/10.5270/esa-g702u98 |
| Principal Investigator, PI | Dr Randall Smith |
| Abstract | We propose to observe the X-ray halo and spectrum of the high mass X-ray binary X Per. The X-ray halo is formed by scattering from dust grains along the line of sight (LOS), which appears to intersect only 1-2 molecular clouds.These clouds likely contain nearly all the material in the LOS. Unlikemany other X-ray halo observations, the low-absorption high-latitude sightlineis well-characterized from absorption spectroscopy done with HST and FUSE. This halo measurement will allow us to place tight constraints on the cloudspositions and the dust size distribution in the clouds. In addition, the X-ray spectrum of X Per is quite unusual for a HMXB, and the RGS spectrum willmeasure or put limits on emission lines suggested by the Chandra/LETG data. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-02-25T15:44:46Z/2003-02-26T01:52:56Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 | 2004-03-16T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "dust grains", "tight constraints", "halo measurement", "sight los", "x persei", "low absorption", "xray halo", "latitude xray binary", "letg data", "latitude sightline", "emission lines suggested", "xray spectrum", "absorption spectroscopy", "dust size distribution", "rgs spectrum", "molecular clouds", "HST" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Randall Smith, 2004, 'X Persei: The X-ray Halo and Spectrum of a High-Latitude X-ray Binary', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-g702u98 |