A dataset provided by the European Space Agency

Proposal ID 0520005
Obs ID 05200050003
Title Target of Opportunity Observations of Active Soft Gamma Repeaters
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0520005
DOI https://doi.org/10.57780/esa-2yazfpn
Author Hurley
Abstract Evidence continues to build that the soft gamma repeaters (SGRs) are magnetars, objects in which the magnetic field energy dominates all other energy sources, including rotation. This implies that they possess the strongest known magnetic fields in the universe (10^15 G). SGRs go through phases of intense activity, during which they may emit hundreds of bursts within a period of weeks to months. During those periods, they exhibit properties which are quite different from their quiescent properties. Their strong magnetic fields are probably mainly responsible for these changes, and accordingly, it is interesting to study them intensely at these times. We propose to continue our successful AO-1, 2, 3, and 4 proposals, and request two ToO observations of any of the known, or of any newly discovered SGRs during their active phases. We request that the ToO take place within one month of the trigger. For clarity, we have filled out one observation form for each of the known SGRs, for one suspected SGR, and for one unknown SGR. Our total request, however, is for just TWO 240 ksec ToOs. This is one of two SGR proposals being submitted by nearly identical teams. The other proposal (M. Feroci PI) requests data on SGRs serendipitously detected by INTEGRAL. Although the scientific justifications of the two proposals are nearly identical, the proposals are independent of one another, in the sense that the objectives of each can be achieved without the acceptance of the other.
Publications
Temporal Coverage 2007-09-30T00:07:46Z / 2007-10-02T15:01:42Z
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 2025-03-25T09:54:34Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Hurley, 2025, 'Target of Opportunity Observations of Active Soft Gamma Repeaters', 1.0, European Space Agency, https://doi.org/10.57780/esa-2yazfpn