Long-term infrared monitoring of stellar sources from earth orbit

Computer Science – Sound

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Astronomical Photometry, Infrared Stars, Light Curve, Spaceborne Astronomy, Variable Stars, Astronomical Catalogs, Long Term Effects, Mira Variables, Rocket Sounding, Satellite-Borne Instruments, Secular Variations, Semiregular Variable Stars

Scientific paper

A program is discussed which involved monitoring the photometric activity of 18 bright variable IR stars at 2.7 microns with satellite- and rocket-borne instrumentation in the period from 1971 to 1975. The stellar sample includes 3 Lb variables, 8 semiregular variables, 5 Mira-type variables, and 2 previously unknown and unclassified IR variables. Detailed light curves of many of these stars were determined for intervals of 3 yr or more; spectra from 2.7 to 20 microns were constructed for nine of them using data obtained entirely with instruments above the atmosphere. Photometric IR light curves and other data are presented for SW Virginis, R Aquilae, S Scuti, IRC 00265, RT Hydrae, S Orionis, S Canis Minoris, Omicron Ceti, and R Leonis. Several hypotheses concerning the interpretation of the IR data are examined.

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