Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.6022a&link_type=abstract
American Astronomical Society, AAS Meeting #211, #60.22; Bulletin of the American Astronomical Society, Vol. 39, p.847
Other
Scientific paper
We have monitored the peculiar emission line star MWC349 for several months in the V, R, I bands and with H-alpha interference filters using the 24” telescope and CCD camera of the Maria Mitchell Observatory on Nantucket Island. Control observations in H-alpha were carried out periodically with the 16” RCOS telescope and CCD camera in Fort Davis, TX. No reliable variations with the time scale shorter than one day were detected in any color band, with an upper limit of +/- 0.05 mag. Sporadic variations of up to 0.1 mag are possible in H-alpha and other filters on a time scale of a week, but this result requires verification. We reliably detected a month time scale drift of brightness in H-alpha and R, with the rates of 0.057 and 0.037 mag per month, respectively, and, less reliably, a similar drift in V and I, with a smaller rate ( 0.02 mag per month). We will discuss the possibility of interpreting the observed color dependence of the rate of drift in terms of varying temperature and size of the central source. This project was supported by the NSF/REU grant AST-0354056 and the Nantucket Maria Mitchell Association.
Aliotta Paul
Armstrong Patrick
Strelnitski Vladimir
Walker Gabrielle
No associations
LandOfFree
Short-time Scale VRI And Hα Monitoring Of MWC349 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 Short-time Scale VRI And Hα Monitoring Of MWC349, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Short-time Scale VRI And Hα Monitoring Of MWC349 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1478240