|Title||SPECTRAL MONITORING OF NGCvirgul1365: NUCLEUS AND VARIABLE ULX|
|Author||Dr GIUSEPPINA FABBIANO|
|Description||We propose three 60virgulks XMM-Newton EPIC observations spread throughout Cycle 3 to study the spectral-temporal properties of two exceptional variable X-ray sources in the spiral galaxy NGCvirgul1365: the Seyfert 1.8 nucleus and the extra- nuclear ultra-luminous X-ray source (ULX) detected with ASCA at luminosities surpassing 10E40 ergs-s. The proposed observations will be crucial for understanding the physics of the AGN emission and of the Compton-thick--thin transitions. The observations of the ULX will provide variability and spectral information that will help us to constrain the nature of this rare class of exceptionally luminous sources, of which very little is known: intermediate mass black holes, less extreme beamed X-ray binaries, or microquasars.|
|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, 2005-10-01T00:00:00Z, 020559, 17.56_20190403_1200. https://doi.org/10.5270/esa-mcpx7dv|