A dataset provided by the European Space Agency

Name: The Origin of the Fe-rich Knot in SN 1604
Published: 2021-04-02T00:00:00Z

Proposal ID	084255
Title	The Origin of the Fe-rich Knot in SN 1604
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0842550101
DOI	https://doi.org/10.57780/esa-4fbvxkr
Principal Investigator, PI	Dr Toshiki Sato
Abstract	We propose a 200 ks XMM-Newton observation of the Fe-rich knot in the Type Iasupernova remnant of Kepler to confirm that the explosion originated from anear-Chandrasekhar-mass white dwarf (WD). Previous observations by Chandra haverevealed an Fe-rich ejecta knot within the SNR moving at nearly the freeexpansion speed. The current spectrum of the knot shows strong emission linesfrom Fe-peak elements (Cr, Mn, Ni), pointing to an origin in the deepest layerof a near-Chandrasekhar-mass WD. However, due to high background in the Chandradata, it is difficult to claim a significant detection of the Ni line, which iskey to determining the burning regime. Thanks to low background, highsensitivity in the Ni band, only the XMM-Newton can resolve this important issue in SN Ia physics.
Publications	Spatially Resolved RGS Analysis of Keplers Supernova Remnant \|Kasuga Tomoaki Vink Jacco et al. \| ApJ \| 915-42 \| 2021 \| 2021ApJ...915...42K \| http://ui.adsabs.harvard.edu/#abs/2021ApJ...915...42K A Spatially Resolved Study of Hard X-Ray Emission in Keplers Supernova Remnant: Indications of Different Regimes of Particle Acceleration \|Sapienza Vincenzo Miceli Marco et al. \| ApJ \| 935-152 \| 2022 \| 2022ApJ...935..152S \| http://ui.adsabs.harvard.edu/#abs/2022ApJ...935..152S
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2020-03-19T23:40:54Z/2020-03-21T14:42:34Z
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	2021-04-02T00:00:00Z
Last Update	2025-01-27
Keywords	"emission lines", "supernova remnant moving", "ni band", "issue insupernovaia physics", "low background", "chandra data", "explosion originated", "ni line", "free expansion speed", "xmm newton", "XMM-Newton", "deepest layer", "fe rich", "chandrasekhar mass wd", "burning regime", "XMM"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Toshiki Sato, 2021, 'The Origin of the Fe-rich Knot in SN 1604', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-4fbvxkr