uvby - β photometry of the RR Lyrae star AC And
Strömgren uvby - β and differential V photoelectric photometry of the variable star AC And is presented. Analysis of this data, as well as data from the literature, corroborates the periods proposed by Fitch & Szeidl (1976). Strömgren photometry has been used for the determination of the reddening and the physical parameters log g and logTe, as well as the metallicity [Fe/H]. The determination of Mv is also discussed and, in view of the results, we propose that AC And is an RR Lyrae star with possible anomalous chemical composition.
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Digital revista |
| Language: | English |
| Published: |
Universidad Nacional Autónoma de México, Instituto de Astronomía
2005
|
| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-11012005000200011 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|