OGLE BLG-LPV-218476 , the SIMBAD biblio

2004MNRAS.349.1059W - Mon. Not. R. Astron. Soc., 349, 1059-1068 (2004/April-2)

OGLE small-amplitude variables in the Galactic bar.


Abstract (from CDS):

Among over 200 000 Galactic bulge variable stars in the public domain Optical Gravitational Lensing Experiment (OGLE) catalogue, we found over 15 000 red giant variables following two well-defined period-amplitude relations. The periods are in the range 10 < P < 100 d, and amplitudes in the range 0.005 < A < 0.13 mag in the I band. The variables cover a broad range of reddening-corrected colours, 1 < (V -I)0< 5, and a fairly narrow range of extinction-corrected apparent magnitudes, 10.5 < I0< 13. A subset of variables (type A) has an rms scatter of only 0.44 mag. The average magnitudes for these stars are well correlated with the Galactic longitude, and vary from Ik,0= 11.82 for l =+ 8° to Ik,0= 12.07 for l =-5°, clearly indicating that they are located in the Galactic bar. Most variables have several oscillation periods.

Abstract Copyright: 2004 RAS

Journal keyword(s): stars: variables: other - Galaxy: bulge

VizieR on-line data: <Available at CDS (J/MNRAS/349/1059): field.dat atype.dat btype.dat>

CDS comments: Catalogue, col(2): OGLEII DIA BUL-SCNN NNNN, Catalogue, col(3): OGLE BUL-SCNN NNNNNN.

Simbad objects: 15286

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