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Stellar Photometry with the Optical Monitors

Published online by Cambridge University Press:  12 April 2016

E. Antonello  and
M. Cropper
E. Antonello
Affiliation:
Osservatorio Astronomico di Brera, Via E. Bianchi 46, 22055 Merate, Italy
M. Cropper
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK

Abstract

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The Optical Monitors are small optical telescopes which will fly on board of the X-ray satellites SPECTRUM-X-GAMMA (JET-X experiment) and XMM. Their main scientific applications are the simultaneous observations (imaging) in the optical and UV band of the optical counterparts of X-ray sources, with limiting magnitudes of about mv=22 (JET-X) and 24 (XMM). The OMs are developed in order to perform also serendipitous observations with high photometric precision of bright stars falling in the field of view, which should allow the detection of stellar microvariability at a level better than 10−5. The main characteristics of the instruments are presented and the problems to be solved in order to reach the scientific goals are briefly discussed.

Type
Session 7 Photometry from Space
Information
International Astronomical Union Colloquium , Volume 136: Stellar Photometry – Current Techniques and Future Developments , 1993 , pp. 358 - 363
Copyright
Copyright © C.J. Butler and I. Elliottt 1993

References

Antonello, E., Citterio, O., Mazzoleni, F., Mariani, A., Pili, P., Lombardi, P.: 1990, in SPIE Proceedings Conference 1235 on Instnimentation in Astronomy VII, 867.Google Scholar