A dataset provided by the European Space Agency

Name: Symbiotics in transition: X-rays from AG Peg and T CrB
Published: 2019-02-16T23:00:00Z

Proposal ID	080042
Title	Symbiotics in transition: X-rays from AG Peg and T CrB
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0800420101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0800420201
DOI	https://doi.org/10.5270/esa-t2rum7j
Principal Investigator, PI	Dr Svetozar ZHEKOV
Abstract	We propose to carry out EPIC imaging spectroscopy of two symbiotic stars, AP Pegand T CrB, that show considerable recent activity. The EPIC data will providethe first X-ray spectrum of AG Peg with a very good quality allowing us to studyits X-ray properties in detail, especially, in the current transition of thisobject from symbiotic nova to a classical symbiotic system. Similarly, we willobtain a good quality spectrum of T CrB in its super-active state the object hasentered in 2015. This will be very useful to confront its X-ray propertiesbetween quiescent and super-active states. The EPIC observations will reveal ifshort-time (hours) X-ray variability (flickering) is present in both objects.
Publications	An XMM-Newton observation of the symbiotic star AG Peg: the X-ray emission after the end of its 2015 outburst \|Zhekov, Svetozar A., Tomov, Toma V., \| MNRAS \| 481-5156 \| 2018 \| 2018MNRAS.481.5156Z \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.481.5156Z XMM-Newton observations of the symbiotic recurrent nova T CrB: evolution of X-ray emission during the active phase \|Zhekov, Svetozar A., Tomov, Toma V., \| MNRAS \| 489-2930 \| 2019 \| 2019MNRAS.489.2930Z \| http://ui.adsabs.harvard.edu/#abs/2019MNRAS.489.2930Z Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z 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 \|Toal\\u00e1, Jes\\u00fas A., \| MNRAS \| 528-987 \| 2024 \| 2024MNRAS.528..987T \| http://ui.adsabs.harvard.edu/#abs/2024MNRAS.528..987T From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2017-11-16T16:17:45Z/2018-01-30T12:12:23Z
Version	17.56_20190403_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	2019-02-16T23:00:00Z
Keywords	"xray properties", "super active", "xray spectrum", "symbiotic nova", "symbiotic stars", "short time", "epic data", "epic imaging spectroscopy", "quality spectrum", "ag peg", "classical symbiotic system", "EPIC", "xray variability flickering", "ap peg"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Svetozar ZHEKOV, 2019, 'Symbiotics in transition: X-rays from AG Peg and T CrB', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-t2rum7j