| Proposal ID | 014885 |
| 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=0148850101 |
| DOI | https://doi.org/10.5270/esa-g27jwoq |
| Principal Investigator, PI | Dr 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 be synchrotron radiation from high energy electrons (> 1 TeV) accelerated by the Fermi process in the SNR shell. G156.2+5.7 is an old SNR (age ~10E4 year), but emit hard X-rays in addition to usual thin thermal emission (~0.5 keV temperature). We propose to separately observe the thermal plasma and the hard X-ray tail component. Our primary objective is to determine whether or not the hard X-ray tail is synchrotron X-rays, and study the cosmic ray acceleration in this old SNR. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2002-10-01T02:51:45Z/2003-02-19T06:30:50Z |
| 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 | 2004-03-25T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "emit hard xray", "G156.2", "energy electrons", "tev accelerated", "nonthermal xray", "fermi process", "supernova remnant age", "kev temperature", "supernova remnant", "synchrotron xray", "thermal plasma", "primary objective", "supernova remnant shell", "emission line", "hard xray tail", "cosmic ray acceleration", "supernova remnant g156", "synchrotron radiation" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Shigeo Yamauchi, 2004, '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-g27jwoq |