| Name | 020409 |
| Title | XMM-NEWTON OBSERVATION OF THE EXTREME NLS1 RX J0439-45 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0204090101 |
| DOI | https://doi.org/10.5270/esa-me4rsif |
| Author | European Space Agency |
| Description | Narrow-line Seyfert 1 galaxies, identified by common optical emission-line properties, show dispersion among both their UV emission-line properties and their X-ray spectral and variability properties. However, we have tentatively identified an empirical relationship between the UV and X-ray properties that may reflect the influence of a range of L/M among NLS1s. To test this conjecture, we propose a 30ks XMM-Newton observation of RX J0439-45, a luminous X-ray extreme NLS1 that we will also observe using HST. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2005-01-30T12:51:16Z/2005-01-30T22:16:34Z |
| 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 | 2006-02-22T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2006, Xmm-Newton Observation Of The Extreme Nls1 Rx J0439-45, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-me4rsif |