J/A+AS/118/441 J/A+AS/118/441 Virgo & Fornax clusters galaxies UBVRI data A Schroeder N Visvanathan Astron. Astrophys. Suppl. Ser. 118 441 1996 1996A&AS..118..441S Clusters, galaxy Photometry, UBVRI galaxies: clusters: individual (Virgo, Fornax) galaxies: photometry We present photoelectric multi-aperture photometry in UBVRI of 171 and 46 galaxies in the Virgo and Fornax clusters, respectively. Many of the galaxies have not been observed in at least one of these passbands before. We discuss the reduction and transformation into the Cousins photometric system as well as the extinction coefficients obtained between 1990 and 1993.

n_star * for stars observed with the S20 tube --- star Standard star name --- Vmag Standard V magnitude mag B-V Standard (B-V) magnitude mag DVmag Difference of our mean observed V magnitude and the standard value mag o_Vmag Number of useful observations --- D(U-B) Difference of our mean observed (U-B) colour and the standard value mag D(B-V) Difference of our mean observed (B-V) colour and the standard value mag D(V-R) Difference of our mean observed (V-R) colour and the standard value mag D(R-I) Difference of our mean observed (R-I) colour and the standard value mag o_UBVRI Number of useful observations of colours (can vary slightly from one colour to the next) --- No Identification of the galaxy by the number of the respective catalogue: VCC: Binggeli et al. =1985AJ.....90.1681B FCC: Ferguson et al. =1989AJ.....98..367F --- Name Name of the galaxy (NGC, IC, ESO, UGC or other identifications) --- RAh Right ascension (1950) h RAm Right ascension (1950) min RAs Right ascension (1950) s DE- Declination sign --- DEd Declination (1950) deg DEm Declination (1950) arcmin DEs Declination (1950) arcsec Mtype Morphological galaxy type (if available from VCC and FCC, else from RC3) --- Ap Aperture size arcsec logAp Logarithm of the aperture 0.1arcmin Rot Total integration time in units of rotations of the filter wheel(1) --- Bmag B magnitude mag n_Bmag Note on Bmag number=2 A colon indicates a signal-to-noise error of 0.10mag and more; bracket is used for data that has been excluded from further data reduction for various reasons, such as a) too low exposure times, b) exceptionally high sky counts (i.e., a large aperture), c) a bright star in the aperture was not measured or light from a star scattered into or out of the aperture, d) the aperture was not centered accurately, e) error too high. Sometimes only one or two passbands were affected. All data followed by bracket should be rejected. --- U-B U-B colour mag n_U-B Note on U-B number=2 A colon indicates a signal-to-noise error of 0.10mag and more; bracket is used for data that has been excluded from further data reduction for various reasons, such as a) too low exposure times, b) exceptionally high sky counts (i.e., a large aperture), c) a bright star in the aperture was not measured or light from a star scattered into or out of the aperture, d) the aperture was not centered accurately, e) error too high. Sometimes only one or two passbands were affected. All data followed by bracket should be rejected. --- B-V B-V colour mag n-B-V Note on B-V number=2 A colon indicates a signal-to-noise error of 0.10mag and more; bracket is used for data that has been excluded from further data reduction for various reasons, such as a) too low exposure times, b) exceptionally high sky counts (i.e., a large aperture), c) a bright star in the aperture was not measured or light from a star scattered into or out of the aperture, d) the aperture was not centered accurately, e) error too high. Sometimes only one or two passbands were affected. All data followed by bracket should be rejected. --- V-R V-R colour mag n_V-R Note on V-R number=2 A colon indicates a signal-to-noise error of 0.10mag and more; bracket is used for data that has been excluded from further data reduction for various reasons, such as a) too low exposure times, b) exceptionally high sky counts (i.e., a large aperture), c) a bright star in the aperture was not measured or light from a star scattered into or out of the aperture, d) the aperture was not centered accurately, e) error too high. Sometimes only one or two passbands were affected. All data followed by bracket should be rejected. --- R-I R-I colour mag n_R-I Note on R-I number=2 A colon indicates a signal-to-noise error of 0.10mag and more; bracket is used for data that has been excluded from further data reduction for various reasons, such as a) too low exposure times, b) exceptionally high sky counts (i.e., a large aperture), c) a bright star in the aperture was not measured or light from a star scattered into or out of the aperture, d) the aperture was not centered accurately, e) error too high. Sometimes only one or two passbands were affected. All data followed by bracket should be rejected. --- Notes Notes number=3 A star indicates if a star (or more than one star) was included in and subtracted from the aperture. S20 indicates that the aperture was observed with the S20 tube. Brackets after S20 indicate an aperture that was partly observed with the S20 and with the GaAs tube. --- table2.texLaTeX version of table2 table5a.texLaTeX version of table5, first part table5b.texLaTeX version of table5, second part Patricia Bauer CDS 1996Apr30Anja Schroeder <SCHROEDER1@ubaclu.unibas.ch> J_A+AS_118_441.xml