A dataset provided by the European Space Agency

Name 055630
Title The extraordinary X-ray source population of NGC 4485 & 4490


DOI 10.5270/esa-8af0szb
Author Ms Jeanette Gladstone
Description The interaction of the nearby galaxy pair, NGC 4485 & 4490 (d=7.8 Mpc), has led to enhanced star formation in the galaxies, and hence enhanced X-ray activity. The most remarkable feature of this is a population of at least six ultraluminous X-ray sources (ULXs). Here we propose two new 40-ks XMM-Newton observations, with the primary aim of studying these extraordinary sources. The depth of the proposed observations will be sufficient to place constraints on the presence of a 'cool' disk in their X-ray spectra, and on the presence of short-term variability, whilst extending the baseline of observations to continue long-term spectral and temporal variability studies. We will also detect sufficient counts to study the extensive diffuse X-ray emission of this system.
Publication An All-Sky Atlas of Radio-X-ray Associations . Flesch, E., . PASA . 27-283 . 2010 . 2010PASA...27..283F ,
Exospheric solar wind charge exchange as seen by XMM-Newton . Carter, J. A., Semba, S., . AN . 333-313 . 2012 . 2012AN....333..313C ,
The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive . Clerc, N., Sadibekova, T., et all. . MNRAS . 423-3561 . 2012 . 2012MNRAS.423.3561C ,
Classification of X-Ray Sources in the XMM-Newton Serendipitous Source Catalog . Lin, Dacheng, Webb, Natalie A., . ApJ . 756-27 . 2012 . 2012ApJ...756...27L ,
An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities . Henley, David B., Shelton, Robin L., . ApJS . 202-14 . 2012 . 2012ApJS..202...14H ,
A systematic cross-search for radio-infrared counterparts of XMM- Newton sources . Combi, J. A., Albacete Colombo, J. F., et all. . Ap&SS . 331-53 . 2011 . 2011Ap&SS.331...53C ,
The Local Environment of Ultraluminous X-Ray Sources Viewed by XMM-Newton.s Optical Monitor . Berghea, C. T., Dudik, R. P., et all. . ApJ . 776-100 . 2013 . 2013ApJ...776..100B ,
Discovery of a 6.4 h black hole binary in NGC 4490 . Esposito, P., Israel, G. L., et all. . MNRAS . 436-3380 . 2013 . 2013MNRAS.436.3380E ,
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-05-19T08:29:40Z/2008-06-22T20:27:20Z
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 2009-07-29T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2009-07-29T00:00:00Z, 055630, 17.56_20190403_1200. https://doi.org/10.5270/esa-8af0szb