| Name | 076263 |
| Title | Continued Probing of AGN Variability on 10-100 kyr Timescales |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0762630101 |
| DOI | https://doi.org/10.5270/esa-nd0xnrg |
| Author | European Space Agency |
| Description | Following the discovery of IC 2497 and Hannys Voorwerp, the citizen scientists taking part in the Galaxy Zoo project have identified a sample of low-redshift galaxies with extended AGN-photoionized cloud indicative of a Seyfert-luminosity AGN. We were awarded XMM time in AO-10 to determine whether the AGN with a deficit of infrared luminosity have plausibly shut down during the light travel time from the nucleus to the cloud; only one source has been observed. XMM-Newton observations of the remaining objects are necessary to measure significant AGN variability on previously inaccessible timescales. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-11-23T14:46:23Z/2016-02-10T21:52:28Z |
| 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 | 2017-02-26T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2017, Continued Probing Of Agn Variability On 10-100 Kyr Timescales, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-nd0xnrg |