|Title||A detailed X-ray study of the longest-lived nova in outburst, V723 Cas|
|Author||Dr Jan-Uwe Ness|
|Description||Just two days after the 15th anniversary of the classical nova V723Cas, a 55-ks observation was obtained with XMM in order to study spectral variations through one full orbit. Unfortunately, the last 8ks of the proposed 63ks fell prey to flare activity, and we lost the most r^ant phase range 0.9-1.1. These data indicate that the X-ray light curve may follow the same orbital cycle as the OM light curve, but for secure conclusions, the phase minimum needs to be covered and a second cycle is needed. Preliminary analysis of the data show intriguing features in the RGS (e.g., blue-shifted absorption lines) and some weak hard emission in the EPIC. A second full orbit (59.9ks) covered in X-rays yields deeper spectra and more light curve coverage for timing analyses.|
|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, 2013-03-03T00:00:00Z, 067349, 17.56_20190403_1200. https://doi.org/10.5270/esa-rw0rugw|