| Name | 076236 |
| Title | What.s behind the Elephant.s trunk? |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0762360101 |
| DOI | https://doi.org/10.5270/esa-2lmx72q |
| Author | European Space Agency |
| Description | The time available for planet formation is limited by the lifetime of the circumstellar disks and it can be measured to 2 Myr in young stellar clusters by counting up the number of disk-bearing and disk-less stars for clusters of different ages. However, Pfalzner (2014) claim that to be a gross underestimate. We propose to test this hypothesis by an 80 ks observation in the star forming region IC 1396 using the large field of view of XMM-Newton. If true, we will find an extended population of cluster members that should spread beyond the radius covered by previous observations of clusters in this age range. This would prove that the time scale for planet formation is several times longer than known to date. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-12-01T02:35:16Z/2015-12-02T02:50:16Z |
| 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 | 2016-12-21T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2016, What.S Behind The Elephant.S Trunkquestionmark, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-2lmx72q |