| Name | 011148 |
| Title | GT Observations of Active Cool Stars: Sigma Gem |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111480101 |
| DOI | https://doi.org/10.5270/esa-h4wpuqs |
| Author | Dr Albert Brinkman |
| Description | GT-Sigma Geminorum is an active, non-eclipsing RS CVn system. We propose a 40 ks observation to investigate the differential emission measure (DEM), chemical abundances, and density structure of the corona. Possible abundance variations with plasma temperature or during flaring events will be searched for as well as bulk motion of the emitting plasma. The primary instrument will be the RGS. To constrain the high temperature end of the DEM, additional spectroscopy will be provided by one EPIC MOS, used in timing mode, and by the EPIC PN in small partial window mode. The second EPIC MOS will be used in the full window mode to search for nearby contaminating sources. All EPICs will be used with thick filters. Coordinated optical and radio observations will also be proposed. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-04-06T16:24:29Z/2001-04-07T07:54:40Z |
| 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 | 2002-07-12T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2002-07-12T00:00:00Z, 011148, 17.56_20190403_1200. https://doi.org/10.5270/esa-h4wpuqs |