The infrared variability and nature of symbiotic stars. III - R Aquarii.

Details The infrared variability and nature of symbiotic stars. III - R Aquarii. The infrared variability and nature of symbiotic stars. III - R Aquarii.

Apr 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.203..351w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 203, Apr. 1983, p. 351-361, 363-371, 373-383.

Astronomy and Astrophysics

Astronomy

36

Astronomical Photometry, Binary Stars, Infrared Astronomy, Stellar Spectrophotometry, Variable Stars, Dust, Emission Spectra, Infrared Spectra, Light Curve, Line Spectra, Mira Variables, Periodic Variations, Tables (Data)

Scientific paper

Infrared (JHKL) photometry of R Aqr for the period 1975-1981 is analyzed, together with relevant visual observations. It is shown that a simple model of partial obscuration by an opaque dust cloud can account for the decrease in brightness in 1975-1978. The percentage obscuration is greater at J (1.2 microns) than at V because at the latter wavelength the effective diameter of the star is greater. At L (3.5 microns) there is a significant contribution from a source with a color temperature of approximately 1000 K (presumably dust) that does not undergo obscuration. Extensive JHKL observations for the years 1972-1982 are then tabulated. It is noted that a Mira variable of period 590 days which has a distance of 3.0 kpc is present in the system. The mean J brightness of the system is found to be constant from 1975 to 1979 but then to decrease, as does the V brightness. Infrared variability and spectra are then presented to show that the symbiotic systems (He 2-106, He 2-38, He 2-34) contain Mira variable components. The first two also exhibit a longer term infrared variability.

Affiliated with

Also associated with

No associations

Rating

The infrared variability and nature of symbiotic stars. III - R Aquarii. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The infrared variability and nature of symbiotic stars. III - R Aquarii., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The infrared variability and nature of symbiotic stars. III - R Aquarii. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1235349