CDROM/AJ/V110/P1083 Photometry of Zwicky Galaxies (Takamiya+ 1995) ================================================================================ Photoelectric Photometry of Zwicky Galaxies Marianne Takamiya, Richard G. Kron, & Gerald E. Kron <1995, AJ, 110, 1083> =1995AJ....110.1083T ================================================================================ Abstract: Multiaperture photoelectric measurements in the B and V bands are presented for 601 galaxies in Volumes I, II, and V of Zwicky's catalogue. Large aperture observations were made in the 1960's with the Lick 3 m telescope and the USNO 1 m telescope. Systematics in Zwicky's magnitude system are investigated as a function of magnitude and direction in the sky. The photoelectric sample is argued to be representative of galaxies in Zwicky's catalogue at B ~ 15. A strong systematic error in Zwicky's magnitudes is apparent in Volume I fainter than m_z = 15.0. The B-V color distribution is discussed. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table1.dat 77 942 The photoelectric data table1.tex 171 958 AASTeX version of table1.dat -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 2 I2 h RAh *[]? RA 1950 from CGCG 3- 7 F5.1 min RAm []? RA 1950 from CGCG 8 1X --- --- Blank 9 A1 --- DE- Declination sign from CGCG 10-11 I2 deg DEd []? Dec. 1950 from CGCG 12-14 I3 arcmin DEm []? Dec. 1950 from CGCG 15-20 F6.1 mag mz []? Magnitude listed in CGCG 21-22 2X --- --- Blank 23-30 A8 --- Name NGC, IC or UGC number, or '...' 31-37 F7.2 mag V V mag measured within aperture radius 38-39 A2 --- n_V *[a-e] Note flags for V 40-45 F6.2 mag B B mag measured within aperture radius 46-47 A2 --- n_B *[a-e] Note flags for B 48-52 F5.2 mag B-V B-V color 53-60 F8.3 mag Delta_m Aperture correction 61-67 F7.1 arcsec Rad Aperture radius 68-69 2X --- --- Blank 70-77 A8 --- Date Date of observation -------------------------------------------------------------------------------- Notes for file: table1.dat -------------------------------------------------------------------------------- RAh: If this field is blank, the data in fields V, B, B-V, Delta_m, Rad, and Date are continuations for the previous object named by fields RAh, RAm, DE-, DEd, DEs, mz and Name. n_V, n_B: Note flags for V and B magnitudes: a Data marked with "x" in original data sheets b Data marked with "?" in original data sheets c Missing computer log entry d Perhaps 1/2 mag shunt error e |mag - mag_{rc3}| > 0.75 -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 27-Sep-1995