Name | 015179 |
Title | The Highest L_x/L_opt Sources in the ROSAT All-Sky Survey |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0151790701 |
DOI | https://doi.org/10.5270/esa-niqhg09 |
Author | Dr Derek Fox |
Description | Theoretical predictions for the number of INSs in the ROSAT All-Sky Survey, >10^2, dwarf the group of seven identified to date, at least partly because source confusion in the PSPC error circles has made counterpart identification/ exclusion difficult. We have developed a novel statistical technique to quantify which RASS sources are least likely to be represented by a counterpart in the latest optical or radio source catalogs. Short XMM observations of these sources will provide us with arcsecond positions to confirm the absence of bright counterparts and enable follow-up observations, and give us >1000-count X-ray spectra which may suggest the source nature. By this means we hope to discover new INSs in bulk and, potentially, other high Lx/Lopt source classes as well. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2003-10-10T09:40:04Z/2003-10-16T15:15:42Z |
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 | 2004-11-04T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Derek Fox, 2004, 015179, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-niqhg09 |