|Title||THE HUNT FOR NEW PULSAR ULTRALUMINOUS X-RAY SOURCES: NGC7090 ULX|
|Author||Dr Dominc Walton|
|Description||Following a series of remarkable recent discoveries, we now know that some of the most luminous members of the ULX-ray source population are actually powered by highly super-Eddington neutron stars. Five such systems are now known, but based on the long-term variability characteristics exhibited by these sources, we have compiled a sample of 19 additional ULX pulsar candidates from the broader ULX population. Here we propose a co-ordinated target of opportunity observation with XMM (100ks) and NuSTAR (100ks) of one of the most promising of these candidates, NGC7090 ULX, when the source is bright. Our main aims are to search for pulsations in order to test our prediction that this is another ULX pulsar, and constrain the broadband spectrum.|
|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, 2021-05-13T00:00:00Z, 085205, 18.02_20200221_1200. https://doi.org/10.5270/esa-[xxxxxxx]|