Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.203..363w&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 203, P. 363, 1983
Astronomy and Astrophysics
Astronomy
23
Scientific paper
Extensive JHKL observations for the years 1972-82 are tabulated. A Mira variable of period 580 days is present in the system which has a distance of 3.0 kpc. The mean J brightness of thye system was constant from 1975 to 1979 but then decreased as did the V brightness. Some or all of this decrease may be due to a reduction in free-free and free-bound emission at both wavelengths. Alternatively there may be variable dust obscuration. The L magnitudes show that the flux from heated dust in the system increased steadily from 1975 until at least 1979 and less certainly until the present time.
Carter B. S.
Catchpole Robin M.
Feast Michael W.
Roberts Gareth
Whitelock Patricia A.
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