|Title||A detailed X-ray study of the longest-lived nova in outburst, V723 Cas|
|Author||Dr Jan-Uwe Ness|
|Description||With 14 years, V723Cas is the oldest nova in the Galaxy. We search for reasons for the long life time of this nova compared to all other novae. With an uninterrupted 60-ks XMM observation, covering one orbit, we can: (1) constrain the location of gas in the binary system using orbit phase-resolved EPIC spectra (2) study X-ray-UV variability, yielding the WD spin period, g mode oscillations, or evidence of renewed accretion disk activity (3) see correlations between X-ray and UV variability (4) investigate illumination effects of the companion with OM (5) determine from RGS whether the X-ray spectrum is a typical SSS spectrum, or whether it consists of overlapping emission lines. (6) search for emission lines yielding information on renewed accretion and cooling ejecta|
|Publication||High-resolution spectroscopy and high-density monitoring in X-rays of novae . Ness, J. U., . BASI . 40-353 . 2012 . 2012BASI...40..353N ,
Obscuration effects in super-soft-source X-ray spectra . Ness, J.-U., Osborne, J. P., et all. . A&A . 559-50 . 2013 . 2013A&A...559A..50N ,
Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift . Yershov, V. N., . Ap&SS . 354-97 . 2014 . 2014Ap&SS.354...97Y ,
Short-period X-ray oscillations in super-soft novae and persistent super-soft sources . Ness, J.-U., Beardmore, A. P., et all. . A&A . 578-39 . 2015 . 2015A&A...578A..39N ,
The Million Optical - Radio-X-ray Associations (MORX) Catalogue . Flesch, Eric W., . PASA . 33-52 . 2016 . 2016PASA...33...52F ,
|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, 2011-09-21T00:00:00Z, 065207, 17.56_20190403_1200. https://doi.org/10.5270/esa-vxorzwm|