OGLE UBVI phot. in Baade's Window (Paczynski+, 1999)

Details OGLE UBVI phot. in Baade's Window (Paczynski+, 1999) OGLE UBVI phot. in Baade's Window (Paczynski+, 1999)

Jan 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ycat.120490319p&link_type=abstract

VizieR On-line Data Catalog: J/AcA/49/319. Originally published in: 1999AcA....49..319P

Other

Photometry: Ubvri

Scientific paper

We present UBVI photometry for 8530 stars in Baade's Window obtained during the OGLE-II microlensing survey. Among these are over one thousand red clump giants. 1391 of them have photometry with errors smaller than 0.04, 0.06, 0.12, and 0.20 mag in the I, V, B, and U-band, respectively. We constructed a map of interstellar reddening. The corrected colors of the red clump giants: (U-B)0, (B-V)0, and (V-I)0 are very well correlated, indicating that a single parameter determines the observed spread of their values, reaching almost 2mag in the (U-B)0. It seems most likely that heavy element content is the dominant parameter, but it is possible that another parameter: the age (or mass) of a star moves it along the same trajectory in the color-color diagram as the metallicity. The current ambiguity can be resolved with spectral analysis, and our catalog may be useful as a finding list of red clump giants. We point out that these K giants are more suitable for a fair determination of the distribution of metallicity than brighter M giants. We also present a compilation of UBVI data for 308 red clump giants near the Sun, for which Hipparcos parallaxes are more accurate than 10%. Spectral analysis of their metallicity may provide information about the local metallicity distribution as well as the extent to which mass (age) of these stars affects their colors.
(3 data files).

Affiliated with

Also associated with

No associations

Rating

OGLE UBVI phot. in Baade's Window (Paczynski+, 1999) 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 OGLE UBVI phot. in Baade's Window (Paczynski+, 1999), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and OGLE UBVI phot. in Baade's Window (Paczynski+, 1999) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1243606