A dataset provided by the European Space Agency

Name 084255
Title The Origin of the Fe-rich Knot in SN 1604


DOI https://doi.org/10.57780/esa-4fbvxkr
Author Dr Toshiki Sato
Description We propose a 200 ks XMM-Newton observation of the Fe-rich knot in the Type Ia
supernova remnant of Kepler to confirm that the explosion originated from a
near-Chandrasekhar-mass white dwarf (WD). Previous observations by Chandra have
revealed an Fe-rich ejecta knot within the SNR moving at nearly the free
expansion speed. The current spectrum of the knot shows strong emission lines
from Fe-peak elements (Cr, Mn, Ni), pointing to an origin in the deepest layer
of a near-Chandrasekhar-mass WD. However, due to high background in the Chandra
data, it is difficult to claim a significant detection of the Ni line, which is
key to determining the burning regime. Thanks to low background, high
sensitivity in the Ni band, only the XMM-Newton can resolve this important issue in SN Ia physics.
Publication No observations found associated with the current proposal
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 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 2021-04-02T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Toshiki Sato, 2021, 084255, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-4fbvxkr