A dataset provided by the European Space Agency

Proposal ID 067960
Title Joint Chandra/XMM-Newton Observation of NGC1407/1400 complex
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0679600101

DOI https://doi.org/10.5270/esa-5qs7y7z
Principal Investigator, PI Ms Yuanyuan Su
Abstract The nearby dark group centered on NGC 1407 is notable for a nearby bright galaxy(NGC 1400) with a velocity differing by at least 1200 km/s. This large velocitydifference, plus controversy over these two galaxiesa?? respective distances,hasled to a wide range of mass estimates for this group. Our analysis of XMM-Newtondata reveals an extended region of enhanced surface brightness near NGC 1400which may be a cold front. We also find that the hottest regions lie betweenNGC 1400 and 1407, suggesting that their atmospheres are colliding. We propose..text on Chandra cut .. a 30 ks XMM pointing covering the east side of NGC1407 to obtain a complete temperature map as well as a total group mass profile.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2012-01-15T03:38:51Z/2012-01-15T13:04:05Z
Version 17.56_20190403_1200
Mission Description The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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 2013-02-04T00:00:00Z
Keywords "ngc 1400", "mass profile", "NGC1407", "XMM-Newton", "enhanced surface brightness", "xmm newton", "ngc 1407", "galaxya ??", "[... text", "chandra cut ...]", "1200 km", "XMM", "complete temperature map", "nearby dark", "1400 complex", "hottest region lie", "wide range", "velocity differing", "respective distances", "cold front"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Ms Yuanyuan Su, 2013, 'Joint Chandra/XMM-Newton Observation of NGC1407/1400 complex', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5qs7y7z