A dataset provided by the European Space Agency

Proposal ID 072140
Title NGC2264: a new dispersed population
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721400201
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0721400301

DOI https://doi.org/10.5270/esa-jl3pife
Principal Investigator, PI Dr Ettore Flaccomio
Abstract An optical variability study of the benchmark star forming region NGC2264,observed with CoRoT, suggests that the cluster is more extended than currentlybelieved. To confirm this result we obtained, in AO10, a 50ks EPIC pointingtoward the cluster periphery. The observation fully confirms the existence of aspatially extended population. We propose to observe four more fields each for50ks. Our goals are: 1) establishing whether the clustered and dispersedpopulations originated from the same or distinct formation events; 2)determining whether mass segregation affects NGC2264, thus compromising currentdeterminations of the IMF; 3) deriving disk frequencies throughout the clusterand in sub-regions with different stellar densities and UV-radiation fields.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2014-03-12T19:25:41Z/2014-03-27T20:54:59Z
Version 17.56_20190403_1200
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 2015-04-11T22:00:00Z
Keywords "dispersed population", "uv radiation fields", "dispersed populations originated", "distinct formation events", "NGC2264", "stellar densities", "cluster periphery", "sub region", "optical variability", "EPIC"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Ettore Flaccomio, 2015, 'NGC2264: a new dispersed population', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-jl3pife