| Proposal ID | 082472 |
| Title | The undisturbed local interstellar medium towards a really dark cloud (Cha-III) |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824720101 |
| DOI | https://doi.org/10.5270/esa-ricvzhh |
| Principal Investigator, PI | Dr Michael Freyberg |
| Abstract | By means of X-ray shadowing we want to study the state and properties of thegeneral undisturbed local interstellar medium, that has not (recently) beenprocessed by star formation and feedback by stellar winds and supernovaexplosions. Therefore we are explicitely targeting a nearby molecular cloudwithout ongoing or recently stopped star-formation. Such clouds may be not asdense as others but can compensate this by absence of X-ray bright young stellarobjects that would have to be excised anyhow in our analysis, and that couldhave changed the physical state and properties of the surrounding interstellarmedium. We propose to observe the star-ess Cha-III dark cloud for 80 ks in orderto determine the on-/off-cloud emission properties of the LISM at (l,b)=(303,-17) |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-03-21T01:22:19Z/2019-03-22T02:30:39Z |
| Version | 21.51_20241115_1113 |
| 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 | 2020-04-24T22:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "nearby molecular cloud", "stellar objects", "excised anyhow", "stopped star formation", "xray shadowing", "xray bright", "cloud emission properties", "interstellar medium", "supernova explosions", "star formation", "explicitely targeting", "stellar winds" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Michael Freyberg, 2020, 'The undisturbed local interstellar medium towards a really dark cloud (Cha-III)', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-ricvzhh |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |