| Proposal ID | 082077 |
| Title | MBM16: Is the Galactic Halo Really Missing? |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0820770101 |
| DOI | https://doi.org/10.5270/esa-251c6jz |
| Principal Investigator, PI | Dr Kip Dee Kuntz |
| Abstract | MBM16 is a dense molecular cloud at high Galactic latitude (l=170,b=-38,d=60-95pc) whose absorption of the X-ray background has been used to measure thestrength of the Galactic halo. Liu et al. has recently claimed that thebackground X-ray emission towards MBM16 is not consistent with a significantGalactic halo and suggested that previous halo measurements using the nearbyMBM12 and MBM20 clouds are wrong. However, ROSAT measurements of these clouds dosuggest significant halo emission. Using a new observation strategy, we proposean observation of MBM16 that will measure the halo emission, settle thisapparent disagreement, and avoid the complication of solar wind charge-exchange. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2019-02-07T05:48:07Z/2019-02-08T18:47:29Z |
| Version | PPS_NOT_AVAILABLE |
| 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 | 2020-03-29T23:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "galactic halo", "dense molecular cloud", "nearby mbm12", "halo measurements", "95 pc", "missing ?.", "ROSAT", "halo emission", "mbm16 \:", "galactic latitude", "mbm20 clouds", "xray background", "rosat measurements" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Kip Dee Kuntz, 2020, 'MBM16: Is the Galactic Halo Really Missing?', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-251c6jz |