| Proposal ID | 010926 |
| Title | LH9 and LH10: two LMC OB associations of different ages in one shot |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0109260101 |
| DOI | https://doi.org/10.5270/esa-uym4qq8 |
| Principal Investigator, PI | Prof Keith Mason |
| Abstract | GT- Wang & Helfand (1991) reported the detection of diffuse X-ray emission fromOB associations in the LMC with the Einstein observatory. Most of theseassociations are surrounded by H alpha rings or complex filaments, some of them,the so-called supergiant shells, extending over up to 1 kpc. Several of theassociations exhibit shell-like X-ray morphologies which generally follow the H alpha emitting gas. According to the authors a significant part of the energyis provided by supernova remnants hitting the dense shells of young bubbles.This proposal is part of a comprehensive program aimed at the study of stars indifferent evolutionary stages and in environments with differeent metallicities. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-04-16T22:59:45Z/2001-09-17T11:03:13Z |
| 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 | 2002-10-23T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "lmc ob associations", "associations exhibit shell", "comprehensive program aimed", "einstein observatory", "alpha rings", "xray morphologies", "dense shells", "diffuse xray emission", "helfand 1991 reported", "alpha emitting gas", "differeent metallicity", "called supergiant shells", "supernova remnant hitting", "complex filaments", "ob associations", "evolutionary stages" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Keith Mason, 2002, 'LH9 and LH10: two LMC OB associations of different ages in one shot', PPS_NOT_AVAILABLE, European Space Agency, https://doi.org/10.5270/esa-uym4qq8 |