|Title||Spectroscopy of AGN-dominated ULIRGs: NGC 6240|
|Author||Prof Hagai Netzer|
|Description||NGC 6240 is a known ULIRG which is unique among such objects because its X-ray spectrum is very similar to those of many Seyfert 2s yet its IR spectrum shows no indication of gas excitation by a nonthermal source. Thus, there is a big question regarding the major energy source with important implications to the X-ray background and the AGN-starburst connection. We propose 100 ks XMM observations to reveal the nature of this source and show how a good S-N RGS spectrum containing 10-15 measurable lines, combined with a state-of-the-art analysis, can probe the physical state of the soft X-ray gas and supply information about its excitation by a starburs, an AGN source, or both. MOS and PN observations will define the SED and resolve the complex emission-absorption feature near 6-8 keV.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2004-09-26T00:00:00Z, 014742, 17.56_20190403_1200. https://doi.org/10.5270/esa-63njhmv|