| Name | 072075 |
| Title | Determining the nature of the unassociated Fermi-LAT gamma-ray sources |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0720750201 |
| DOI | https://doi.org/10.5270/esa-nu1d6p4 |
| Author | European Space Agency |
| Description | Fermi opened new horizons in gamma-ray astronomy, with 1873 sources detected by the LAT instrument in the first 2 years. However, <10% of them are identified, mostly as gamma-ray pulsars or Active Galactic Nuclei (AGN), while virgul60% are only associated with potential gamma-ray emitters matched in object catalogues. The remaining virgul30% have not even a potential association. The nature of these sources is unknown and can only be investigated through multi-wavelength observations. Here, we propose to map the error boxes of selected LAT sources with XMM and the VLT. From the classification of their candidate X-ray counterparts, based on their X-ray and optical properties, we will then single out those which are most likely gamma-ray emitters and close the identification loop. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2013-10-10T09:43:18Z/2013-10-15T07:56:00Z |
| 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 | 2014-10-26T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2014, Determining The Nature Of The Unassociated Fermi-Lat Gamma-Ray Sources, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-nu1d6p4 |