| Name | 011137 |
| Title | GT Observations of Active Cool Stars: AR Lac |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0111370101 |
| DOI | https://doi.org/10.5270/esa-pzhdmcf |
| Author | Dr Albert Brinkman |
| Description | GT-AR Lac is a fully eclipsing RS CVn binary system with extremely active coronae on both stars. Previous missions have found a prominent X-ray minimum around the optical primary eclipse when the G star is occulted, and a shallow minimum around secondary eclipse. We propose here to study one ingress to or one egress from the primary eclipse. We will use the EPIC cameras to obtain a light curve in unprecedented detail, the RGS combined with the EPICs to determine time-dependent emission measure distributions and abundances, and the RGS to search for time/height-dependent densities. Simultaneous optical and radio observations will be proposed. One EPIC MOS will be operated in TIMING/medium filter mode, while the pn will observe with the SML window and thick filter. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-12-05T18:36:04Z/2001-12-06T03:33:49Z |
| 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 | 2003-02-08T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Albert Brinkman, 2003, 011137, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-pzhdmcf |