A dataset provided by the European Space Agency

Name 074444
Title Understanding the X-ray Time delays in the simple spectrum NLS1: PG 1244+026


DOI https://doi.org/10.5270/esa-rgl6z6k
Author Mr William Alston
Description PG 1244+026 is a .simple. Narrow Line Seyfert 1 galaxy, showing neither strong reflection features at iron, nor dramatic spectral-variability. Spectral-timing analysis strongly supports the soft X-ray excess being an additional component rather than ionised reflection. Yet the current data show lag-frequency and lag-energy spectra that are similar to those from sources apparently dominated by ionised reflection. We propose a 600 ks observation (5 full orbits) of this source to better constrain these higher order spectra, and interpret them in light of the known spectral components. This will i) revolutionise our understanding of the reverberation signal in a simple spectrum source; ii) allow for the first time two independent spin methods to be tested in the same AGN.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-12-20T11:51:27Z/2015-01-16T20:09:29Z
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 2016-02-03T23:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2016-02-03T23:00:00Z, 074444, PPS_NOT_AVAILABLE. https://doi.org/10.5270/esa-rgl6z6k