| Name | 078400 |
| Title | A detailed X-ray study of the unique recurrent nova M31N 2008-12a |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0784000101 |
| DOI | https://doi.org/10.5270/esa-sv8a4xj |
| Author | Dr Martin Henze |
| Description | M31N 2008-12a is a recurrent nova in M31 with a unique record of 8 observed eruptions in the last 8 years. The apparent recurrence period of 1 yr is unprecedentedly short, with evidence for an even shorter period of 6 months. This nova is the prime type-Ia supernova progenitor candidate. We successfully predicted the last two eruptions and predict that future eruptions will soon enter the XMM-Newton visibility window. We propose a 100-ks XMM-Newton target of opportunity observation of a future eruption to study in unprecedented detail the X-ray spectrum and characterise the emission components. Additionally, we will study the flux variability of the early supersoft X-ray phase and measure the corresponding X-ray spectral variations and the UV variability. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2016-12-26T12:06:31Z/2016-12-28T23:29:58Z |
| Version | 17.56_20190403_1200 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2018-01-19T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2018-01-19T23:00:00Z, 078400, 17.56_20190403_1200. https://doi.org/10.5270/esa-sv8a4xj |