| Name | 050540 |
| Title | The remarkable variability and X-ray spectrum of the narrow-line quasar PHL 1092 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0505400101 |
| DOI | https://doi.org/10.5270/esa-85okeve |
| Author | European Space Agency |
| Description | PHLvirgul1092 is known for its extreme X-ray variability observed by previous X--ray missions (see results from the ROSAT monitoring of the source by Brandt et al 1999). The fast and large amplitude variability is common in narrow--line type objects but rather unusual given the quasar--type luminosity of the source (about 10^{45} erg/s in the 0.4--10 keV rest--frame). The flux variability is also associated with complex spectral variability revealed (but poorly understood) from previous relatively short XMM--Newton observations. We propose to observe PHLvirgul1092 with XMM--Newton to investigate in great detail the nature of the spectral complexity and of the extreme X--ray |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2008-01-20T02:26:48Z/2008-01-20T20:15:34Z |
| 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 | 2009-02-13T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2009, The Remarkable Variability And X-Ray Spectrum Of The Narrow-Line Quasar Phl 1092, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-85okeve |