| Name | 060008 |
| Title | Probing the high-energy properties of very early-type stars in the cluster HM1 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0600080101 |
| DOI | https://doi.org/10.5270/esa-xd87814 |
| Author | European Space Agency |
| Description | So far, little information has been gathered on the X-ray emission of the earliest O-type stars. To probe their high-energy properties, we propose to observe the young cluster HM1 for the first time in the X-ray domain. Due to its high extinction, this object is notoriously difficult to observe at other wavelengths and it has thus been poorly studied up to now. However, observing HM1 provides access to 5 very early O stars, 2 WRs, and about 20 late O/early B objects. HM1 therefore allows a study of the L_X-L_{BOL} relation of the earliest spectral types and constitutes a unique probe into the X-ray emission of WN stars and early O stars. In addition, new magnetic or colliding wind objects will be detected, as well as part of the PMS population of HM1. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-03-10T01:14:06Z/2010-03-10T08:42:43Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2011-04-03T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2011, Probing The High-Energy Properties Of Very Early-Type Stars In The Cluster Hm1, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-xd87814 |