| Proposal ID | 020597 |
| Title | NON-THERMAL X-RAYS FROM THE SUPERNOVA REMNANT G156.2+5.7 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0205970201 |
| DOI | https://doi.org/10.5270/esa-okwby5v |
| Principal Investigator, PI | Prof SHIGEO YAMAUCHI |
| Abstract | Recent observations revealed that several shell-like supernova remnants (SNRs)exhibit power-law spectra with no emission line which is considered to besynchrotron radiation from high energy electrons (larger than 1 TeV) acceleratedby the Fermi process in the SNR shell. G156.2+5.7 is an old SNR (age about 10^4year), but emits hard X-rays in addition to usual thin thermal emission (about0.5 keV temperature). We propose to observe the thermal plasma and the hardX-ray tail component separately. Our primary objective is to determine whetheror not the hard tail is synchrotron X-rays, and study the cosmic rayacceleration in this old SNR. This proposal is re-submitted from AO- 2 becauseit was not fulfilled due to high radiation. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2004-09-20T01:51:03Z/2004-09-20T15:17:58Z |
| Version | 17.56_20190403_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 | 2005-10-22T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "supernova remnant", "synchrotron xray", "supernova remnant g156", "energy electrons larger", "tev accelerated", "kev temperature", "thermal plasma", "supernova remnant shell", "emission line", "supernova remnant age", "cosmic ray acceleration", "emits hard xray", "G156.2", "nonthermal xray", "re submitted", "fermi process", "primary objective", "hard tail", "synchrotron radiation" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof SHIGEO YAMAUCHI, 2005, 'NON-THERMAL X-RAYS FROM THE SUPERNOVA REMNANT G156.2+5.7', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-okwby5v |