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See detailOMC: An Optical Monitoring Camera for INTEGRAL - Instrument description and performance
Mas-Hesse, J. M.; Gimenez, A.; Culhane, J. L. et al

in Astronomy and Astrophysics (2003), 411(1), 261-268

The Optical Monitoring Camera (OMC) will observe the optical emission from the prime targets of the gammaray instruments onboard the ESA mission INTEGRAL, with the support of the JEM-X monitor in the X ... [more ▼]

The Optical Monitoring Camera (OMC) will observe the optical emission from the prime targets of the gammaray instruments onboard the ESA mission INTEGRAL, with the support of the JEM-X monitor in the X-ray domain. This capability will provide invaluable diagnostic information on the nature and the physics of the sources over a broad wavelength range. Its main scientific objectives are: ( 1) to monitor the optical emission from the sources observed by the gamma- and X-ray instruments, measuring the time and intensity structure of the optical emission for comparison with variability at high energies, and ( 2) to provide the brightness and position of the optical counterpart of any gamma- or X-ray transient taking place within its field of view. The OMC is based on a refractive optics with an aperture of 50 mm focused onto a large format CCD (1024 x 2048 pixels) working in frame transfer mode (1024 x 1024 pixels imaging area). With a field of view of 5degrees x 5degrees it will be able to monitor sources down to magnitude V = 18. Typical observations will perform a sequence of different integration times, allowing for photometric uncertainties below 0.1 mag for objects with V less than or equal to 16. [less ▲]

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See detailThe Hipparcos Input Catalogue. Volumes 1 - 7.
Turon, C.; Crézé; Egret, D. et al

in The Hipparcos Input Catalogue. Volumes 1 - 7., by Turon, C.; Crézé, M.; Egret, D.; Gomez, A.; Grenon, M.; Jahreià , H.; Réquième, Y.; Argue, A. N.; Bec-Borsenberger, A.; Dommanget, J.; Mennessier, M. O.; Arenou, F.; Chareton, M.; Crifo, F.; Mermilliod, J. C.; Morin, D.; Nicolet, B.; Nys, O.; Prévot, L.; Rousseau, M.; Perryman, M. A. C.; Arlot, J. E.; Baglin, A.; Barthès, D.; Baylac, M. O.; Brosche, P.; Burnet, M.; Delhaye, J.; Dettbarn, C.; Erbach, M.; Figueras, F.; Fricke, W.; Helmer, L.; Hemenway, P.; Jordi, C.; Lampens, P.; Lederle, T.; Lub, J.; Manfroid, J.; Mattei, J. A.; Mazurier, J. M.; Mermilliod, M.; Morisson, L. V.; Murray, C. A.; Oblak, E.; Périé, J. P.; Pernier, B.; Le Poole, R. S.; Quijano, L.; Rapaport, M.; Sellier, A.; Torra, J.; Tucholke, H.-J.; de Vegt, C.; Høg, E.; Kovalevsky, J.; van Leeuwen, F.; Lindegren, L.; Schütz, A.; Schrijver, H.. European Space Agency, Paris (France), Mar 1992, 3211 p., ISBN 92-9092-120, Price Dfl. 180.00. (1992)

Vol. 1 - 5: The Hipparcos Input Catalogue. Vol. 6: Annex 1. Double and multiple stars. Vol. 7: Annex 2. The atlas of identification charts for faint stars. Annex 3. Identification charts for stars in ... [more ▼]

Vol. 1 - 5: The Hipparcos Input Catalogue. Vol. 6: Annex 1. Double and multiple stars. Vol. 7: Annex 2. The atlas of identification charts for faint stars. Annex 3. Identification charts for stars in galactic open clusters. Annex 4. Identification charts for stars in the Magellanic Clouds. The Hipparcos Input Catalogue was constructed as the observing programme for the European Space Agency's Hipparcos astrometry mission. The requirements of the project in terms of completeness, sky coverage, astrometric and photometric accuracy, as well as the necessary optimisation of the scientific impact, resulted in an extended effort to compile and homogenize existing data, to clarify sources and identifications and, where needed, to collect new data matching the required accuracy. This has resulted in an unprecedented catalogue of stellar data including up-to-date information on positions, proper motions, magnitudes and colours, and (whenever available) spectral types, radial velocities, multiplicity and variability information. The catalogue is complete to well-defined magnitude limits, and includes a substantial sampling of the most important stellar categories present in the solar neighborhood beyond these limits. The magnitude limits vary from 7.3 to 9 mag as a function of galactic latitude and spectral type, and there are no stars fainter than about V = 13 mag. [less ▲]

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