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 2026-03-05T13:05:54Z
Keywords INTEGRAL gamma-ray data, ESA INTEGRAL mission dataset, gamma-ray astronomy observations, high-energy astrophysics data, IBIS imaging data, SPI spectrometer data, JEM-X X-ray monitoring data, OMC optical monitoring data, coded mask telescope observations, gamma-ray spectroscopy dataset, MeV astrophysics data, keV–MeV photon observations, gamma-ray burst observations dataset, black hole gamma-ray data, neutron star high-energy observations, positron annihilation 511 keV line data, Galactic Center gamma-ray emission dataset, supernova nucleosynthesis gamma-ray lines, active galactic nuclei high-energy data, transient astrophysical source monitoring, calibrated photon event lists, gamma-ray light curves, high-energy spectra data, sky maps gamma-ray, time-series astrophysical observations, long-term gamma-ray monitoring dataset
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Vink, 2026, 'Probing the nature of Cas A's and Tycho's supernova explosions.', 1.0, European Space Agency, https://doi.org/10.57780/esa-vgd6gv7