A dataset provided by the European Space Agency

Proposal ID 0320056
Obs ID 03200560001, 03200560002
Title Probing the nature of Cas As and Tychos supernova explosions.
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0320056
DOI https://doi.org/10.57780/esa-vgd6gv7
Author Vink
Abstract We propose to observe Cas A and Tycho with INTEGRAL for 2.5 Ms, as a continuation of our existing observation program. Cas A is a known source of Ti-44 line emission, but with INTEGRAL we can improve the flux measurements, and moreover, measure or place limits on the velocity line broadening. This is of great importance for the current debate about the nature of core collapse supernovae, as Ti-44 probes the inner regions of the explosion. With an additional 2.5 Ms exposure we will be able to detect the continuum emission above ~90 keV. This is important for constraining the continuum underneath the 68 keV and 78 keV lines, and it will cast a new light on the nature of the hard X-ray continuum, which is presently not known.For Tycho, the likely remnant of a Type Ia supernova, the goal is to detect Ti-44 line emission, or provide stringent upper limits to it. This can establish, or rule out, that SN 1572 was a sub-Chandrasekhar mass Type Ia event. Moreover, with INTEGRAL we will be able to detect Tychos hard X-ray continuum above 30 keV and at least up to 60 keV for the first time. Such measurements are essential for investigating the nature of these hard X-ray tails and for constraining the models of particle acceleration in supernova remnants.
Publications
Temporal Coverage 2005-12-11T03:15:25Z / 2006-08-09T14:16:56Z
Version 1.0
Mission Description The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.
Creator Contact https://www.cosmos.esa.int/web/integral/helpdesk
Date Published 2025-03-25T09:54:32Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Vink, 2025, 'Probing the nature of Cas A's and Tycho's supernova explosions.', 1.0, European Space Agency, https://doi.org/10.57780/esa-vgd6gv7