| Proposal ID | 001266 |
| Title | A Possible Identification for the EGRET Source 2EG 2227+6122 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0012660101 |
| DOI | https://doi.org/10.5270/esa-3d5bk75 |
| Principal Investigator, PI | Prof Jules Halpern |
| Abstract | The nature of the persistent, high-energy gamma-ray sources in the Galacticplane remains a mystery. The most likely scenario is a population of middle-agedpulsars, many of which might be radio quiet like Geminga. We have an ongoingprogram of X-ray, radio, and optical observations of selected EGRET errorcircles at intermediate Galactic latitude. For one of these fields, at(l,b)=(106,+3), our complete census of X-ray and radio sources reveals aremarkable association between a radio shell with unique properties, and a compact X-ray source. It may be a pulsar with a wind-blown nebula. An XMM observation will determine whether or not this source has a hard X-ray spectrumlike that of other gamma-ray pulsars, and can determine its pulse period, ... |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, RGS1, RGS2 |
| Temporal Coverage | 2002-06-15T07:31:48Z/2002-06-15T17:47:49Z |
| 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 | 2003-07-05T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "middle aged pulsars", "galactic plane", "+", "complete census", "106 ", "intermediate galactic latitude", "gamma ray pulsars", "pulse period", "radio sources reveals", "hard xray spectrum", "egret error circles", "XMM", "compact xray source", "radio quiet", "radio shell", "wind blown nebula" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Jules Halpern, 2003, 'A Possible Identification for the EGRET Source 2EG 2227+6122', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3d5bk75 |