|Title||Cooling of the super-heated neutron star in MAXI J0556-332|
|Author||Dr Jeroen Homan|
|Description||Observing the cooling of neutron stars reheated by accretion provides unique insights into neutron-star structure. Here we propose to continue our observations of the cooling neutron star in MAXI J0556-332, a transient that had been accreting at near-super-Eddington rates for 16 months when it returned to quiescence in May 2012. XMM-Newton and Chandra observations in quiescence have revealed an extraordinarily hot and rapidly cooling neutron star, implying very strong heat sources in the shallow outer crust. We request a 106 ks XMM-Newton observation of MAXI J0556-332 to investigate if the remarkable properties of the outer crust extend to deeper crustal layers and to constrain the possible onset of a phase of more rapid cooling.|
|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, 2018-04-20T22:00:00Z, 078267, 17.56_20190403_1200. https://doi.org/10.5270/esa-l4lax7o|