A dataset provided by the European Space Agency

Name: Preparing for the next Nova of the Century''
Published: 2021-10-27T00:00:00Z

Proposal ID	086403
Title	Preparing for the next Nova of the Century
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0864030101
DOI	https://doi.org/10.57780/esa-ahyx6lh
Principal Investigator, PI	Dr Jennifer Sokoloski
Abstract	Changes in the amount of material reaching the accretion disk boundary layer candrastically modify its structure. We are witnessing such changes in a symbioticrecurrent nova, T CrB, for the first time. Two observations with NuSTAR and XMMhave revealed that the accretion rate has increased by a factor of about 10 andthat the boundary layer has become optically thick. The next step toward ourunderstanding of the current state is to observe T CrB when it returns to itsquiescence level, which may happen during AO19. This ToO observation will allowus to test the idea that nova eruptions in T CrB follow after multi-year periodsof enhanced accretion onto the white dwarf due to an accretion disk instability.It will also help us study disk instablity events in large accretion disks.
Publications	The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P Reflection physics in X-ray-emitting symbiotic stars \|Toalu00e1 Jesu00fas A. \| MNRAS \| 528-987 \| 2024 \| 2024MNRAS.528..987T \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.528..987T Search for Young Stellar Objects within 4XMM-DR13 Using CatBoost and SPE \|Ma Xiangyao Zhang Yanxia et al. \| AJ \| 168-210 \| 2024 \| 2024AJ....168..210M \| http://ui.adsabs.harvard.edu/#abs/2024AJ....168..210M The X-ray rise and fall of the symbiotic recurrent nova system T CrB \|Toalu00e1 Jesu00fas A. Gonzu00e1lez-Martu00edn Omaira et al. \| MNRAS \| 532-1421 \| 2024 \| 2024MNRAS.532.1421T \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.532.1421T
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2020-09-07T23:50:02Z/2020-09-08T14:47:06Z
Version	18.02_20200221_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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	2021-10-27T00:00:00Z
Last Update	2025-08-04
Keywords	"XMM", "nova eruptions", "century ''.", "NuSTAR", "accretion disk instability", "enhanced accretion", "accretion rate", "symbiotic recurrent nova", "boundary layer", "disk instablity events", "accretion dis", "quiescence level", "drastically modify", "optically thick", "white dwarf"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Jennifer Sokoloski, 2021, 'Preparing for the next Nova of the Century''', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-ahyx6lh