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J/A+AS/128/315      BVRI photometry of blazars       (Jia Guibin+ 1998)
Variability in Blazars
       Jia Guibin, Cen Xuefen, Ma Huiyu, Wang J.
      <Astron. Astrophys. Suppl. Ser. 128, 315 (1998)>
      =1998A&AS..128..315G      (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Photometry, UBVRI

Keywords: BL Lacertae objects - quasars


Abstract:
    The results of both BVRI CCD photometric monitoring and fast
    photometry for 8 blazars and variable quasars are presented. There is
    intraday variability for 6 blazars and very short timescales (minutes
    to two hours) variability for 5 objects. Implications for relativistic
    beaming are briefly discussed.
Objects:
    ----------------------------------------------------------
       RA   (2000)   DE      Designation(s)
    ----------------------------------------------------------
    16 20 21.8   +17 36 24   3C 334
    11 59 31.8   +29 14 42   B2 1156+295
    17 51 32.8   +09 39 00   OT 081
    00 05 59.1   +16 09 48   PHL 658
    04 24 46.7   +00 36 06   PKS 0422+004
    07 57 06.6   +09 56 35   PKS 0754+101
    21 31 35.2   -12 07 05   PKS 2128-123
    22 57 17.2   +07 43 12   PKS 2254+074
    ----------------------------------------------------------

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        50      280   Observation for 8 Blazars
table1.tex        67      340   LaTeX version of table1


See also:
    J/A+AS/129/569 : BVRI photometry of OJ 287 (Jia Guibin+ 1998)


Byte-by-byte Description of file: table1.dat

   Bytes Format    Units     Label     Explanations

   1- 12  A12      ---       Name      Object designation
  15- 22  A8      "DD/MM/YY" Date      Date
  24- 34  F11.3    d         JD        Heliocentric Julian date
  37- 41  F5.2     mag       mag       magnitude in "Band" band
  44- 47  F4.2     mag       e_mag     rms uncertainty on mag
      50  A1       ---       Band      [BVRI] Observed band


Acknowledgements: Jiancheng Wang 

(End)                                         Patricia Bauer [CDS]   14-Oct-1997