A dataset provided by the European Space Agency

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 Prof KAREN LEIGHLY
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, 2006-02-22T00:00:00Z, 020409, 17.56_20190403_1200. https://doi.org/10.5270/esa-me4rsif