|Title||Sampling ULX spectral states with XMM Newton and NuSTAR|
|Author||Dr Matteo Bachetti|
|Description||Recently our understanding of Ultraluminous X-ray Sources (ULX) has advanced significantly due to broad band spectro-temporal studies with XMM Newton, Suzaku and NuSTAR. Evidence now suggests that many ULXs with LX 1040ergs 1 are powered by super-Eddington accretion onto black holes with masses up to 100 Mo. This extreme accretion regime remains poorly understood. Observations show that ULXs are variable on timescales of weeks and exhibit distinct spectral states characterized by multiple components in the 0.3 30 keV band. To understand these components we propose to trigger a NuSTAR and XMM Newton observation of one of the bright ULXs in our sample in a different spectral state than previously observed.|
|Publication||The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
The X-ray decay of the ultraluminous supernova SN 1978K in NGC 1313 . Zhao, Hai-Hui, Weng, Shan-Shan, . MNRAS . 468-1551 . 2017 . 2017MNRAS.468.1551Z ,
Recurrent Outbursts Revealed in 3XMM J031820.8-663034 . Zhao, Hai-Hui, Weng, Shan-Shan, . ApJ . 859-106 . 2018 . 2018ApJ...859..106Z ,
Black Holes and Neutron Stars in Nearby Galaxies: Insights from NuSTAR . Vulic, N., Hornschemeier, A. E., et all. . ApJ . 864-150 . 2018 . 2018ApJ...864..150V ,
Ultraluminous X-ray sources with flat-topped noise and QPO . Atapin, Kirill, Fabrika, Sergei, . MNRAS . 486-2766 . 2019 . 2019MNRAS.486.2766A ,
XMM-Newton campaign on ultraluminous X-ray source NGC 1313 X-1: wind versus state variability . Pinto, C., Walton, D. J., et all. . MNRAS . 492-4646 . 2020 . 2020MNRAS.492.4646P ,
The unusual broad-band X-ray spectral variability of NGC 1313 X-1 seen with XMM-Newton, Chandra, and NuSTAR . Walton, D. J., Pinto, C., et all. . MNRAS . 494-6012 . 2020 . 2020MNRAS.494.6012W ,
|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, 2015-07-17T22:00:00Z, 074259, 17.56_20190403_1200. https://doi.org/10.5270/esa-wptxzd2|