| Proposal ID | 040641 |
| Title | Understanding the nature of Seyfert 2 Galaxy VV 780 - IC4518 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0406410101 |
| DOI | https://doi.org/10.5270/esa-wd6gl0s |
| Principal Investigator, PI | Dr Emrah Kalemci |
| Abstract | We discovered hard X-ray emission from Seyfert 2 galaxy VV 780 with INTEGRAL. VV780 is an interacting galaxy pair at an early stage of merger. Its soft X-rayproperties point to an highly obscured AGN. The sample of early merger Sy2s thatare observed in X-rays is limited and they may hold important clues tounderstand the onset of starburst and AGN activity. We request one XMM-Newtonobservation of this source, first to verify that the X-ray emitting object inthe ISGRI error circle is VV 780. We will also obtain the spectral parameters ofthe source in soft X-rays with XMM-Newton. Along with the simultaneous RXTEobservation (submitted AO-11), the overall spectrum will enable us to classifythis object, and provide information about the nature of hard and soft X-ray emission. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-08-15T09:16:41Z/2006-08-15T16:16:54Z |
| 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 | 2007-09-12T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "spectral parameters", "submitted ao", "overall spectrum", "xray emitting object", "hard xray emission", "obscured agn", "interacting galaxy pair", "xmm newton", "galaxy vv 780", "XMM-Newton", "isgri error circle", "agn activity", "soft xray properties", "soft xray", "XMM", "soft xray emission", "vv 780", "merger sy2s" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Emrah Kalemci, 2007, 'Understanding the nature of Seyfert 2 Galaxy VV 780 - IC4518', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-wd6gl0s |