Carbon-star lightcurves in the 1-20 micron range

Details Carbon-star lightcurves in the 1-20 micron range Carbon-star lightcurves in the 1-20 micron range

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26as...94..377l&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 94, no. 2, Aug. 1992, p. 377-398.

Astronomy and Astrophysics

Astronomy

116

Carbon Stars, Fourier Analysis, Light Curve, Stellar Mass Ejection, Stellar Spectrophotometry, Variable Stars, Astronomical Catalogs, Charge Coupled Devices, Infrared Astronomy Satellite, Near Infrared Radiation, Schmidt Telescopes, Stellar Color

Scientific paper

The results of a photometric monitoring in the wavelength range 1-20 microns are presented for 23 carbon-rich sources. The sample has been selected to contain optically bright and dust enshrouded carbon stars. Using data obtained in the NIR periods are determined by Fourier analysis for 19 sources; for the four remaining objects, there is no evidence of periodicity in the variations. The periods are found in the range 350-750 days. The longest period was obtained for AFGL 1085 (about 725 days). The amplitudes of the variations from 1 to 20 microns are estimated by sine-fitting of the lightcurves. In general, the amplitudes decrease with wavelength. Periods are only weakly correlated with amplitudes and colors, but amplitudes and colors are well correlated together. In the sample of 19 periodic sources, there is no difference in the variability properties of optical carbon stars and dust-enshrouded carbon stars. In two cases (AFGL 1062 and AFGL 1085), there is a clear evidence in the lightcurves of a plateau on the rising branches.

Affiliated with

Also associated with

No associations

Rating

Carbon-star lightcurves in the 1-20 micron range 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 Carbon-star lightcurves in the 1-20 micron range, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon-star lightcurves in the 1-20 micron range will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1164531