A dataset provided by the European Space Agency

Proposal ID 065002
Title On the stellar X-ray content of the Open Cluster Remnant NGC 1901
Download Data Associated to the proposal

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0650020101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0650020201

DOI https://doi.org/10.5270/esa-by6rbbb
Principal Investigator, PI Dr Raimundo Lopes de Oliveira
Abstract Open Cluster Remnants (OCRs) are poorly populated groups of stars in an advancedstage of the evolution of open clusters. They are especially rich in late-typestars and binary systems of stars, of which a fraction is expected to beinteracting binaries (RS CVn, cataclysmic variables, and low-mass X-raybinaries). We propose to investigate the X-ray content of the OCR NGC 1901,looking for signatures of accreting/interacting binary systems and active starsin order to put constraints on the evolutionary models describing the finalstages of star clusters.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2010-12-11T16:38:57Z/2010-12-12T01:10:09Z
Version 21.51_20241115_1113
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 2012-01-08T00:00:00Z
Last Update 2026-07-09
Keywords "active stars", "interacting binary systems", "star clusters", "stellar xray content", "xray content", "NGC 1901", "poorly populated", "final stages", "especially rich", "cluster remnant ocrs", "evolutionary models describing", "cataclysmic variables", "late type stars", "ocr ngc 1901", "advanced stage", "binary systems"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Raimundo Lopes de Oliveira, 2012, 'On the stellar X-ray content of the Open Cluster Remnant NGC 1901', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-by6rbbb
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.