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J/AJ/111/645                      Morphology of Quasars (Fabian+ 1996)
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Optical Morphology of Bright Quasars on Images Taken With 1.2 m Schmidt Cameras
     Fabian D., Usher P.D.
    <Astron. J. 111, 645 (1996)>
    =1996AJ....111..645F
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ADC_Keywords: QSOs

Abstract:
    The optical morphology of bright extragalactic objects listed by Green
    et al. (1986ApJS...61..305G) is determined on Palomar Observatory Sky
    Survey prints. Morphological types are assigned according to whether
    objects appear resolved or unresolved. These are plotted in the Hubble
    Diagram. When combined with previous results from the Medium-Bright
    Quasar Survey (MBQS), objects of redshift z are found to be unresolved
    on 1.2m Schmidt telescopes at apparent magnitudes brighter than
    B=21-3/4z over a large magnitude range 12.5<B<18.5. A luminosity
    cutoff for unresolved objects in this range is found to be M_B=-24,
    (H0=50), in agreement with an earlier estimate. Relevance to the
    search for large, bright, host galaxies, and for "naked quasar"
    candidates, is noted.

File Summary:
--------------------------------------------------------------------------------
 FileName  Lrecl   Records   Explanations
--------------------------------------------------------------------------------
ReadMe        80         .   This file
table1.dat    45       164   Morphology of objects listed by Green et al. 
			      (1986ApJS...61..305G, see cat. <II/207>)
notes        136        33   Notes on individual objects in table 1
table1.tex    79       225   AASTeX version of table1.dat
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See also:
    II/207 : Palomar-Green catalog UV-excess stellar objects (Green+ 1986)

Byte-by-byte Description of file: table1.dat
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   Bytes Format  Units   Label      Explanations
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   1-  8  A8     ---     Object     Coordinate-based object name
  10- 15  A6     ---     EMor      *POSS E-print morphology
  17- 22  A6     ---     OMor      *POSS O-print morphology
  24- 25  I2     ---     Note       [1/33]? Note number in notes
  27- 29  A3     ---     SpId      *Spectroscopic identification
  31- 36  F6.2   mag     Bmag       B magnitude from Green et al., cat. <II/207>
  38- 45  F8.5   ---     z         *? Redshift
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Note on EMor, OMor:
  The morphological designations of this paper are: G, galaxy; CG,
  compact galaxy (bright center and faint surrounding nebulosity);
  CGNN, a possible compact galaxy but with no nebulosity (a CG decided
  by shape); and *, starlike (an object indistinguishable from
  neighbouring stars).  Any of these categories could be accompanied by
  the letter "C", meaning that the image is confused with another
  (usually fainter) source, while "?" connotes uncertainty.
Note on SpId:
  Spectroscopic identifications: QSO (quasar), Sey (Seyfert galaxy),
  BLL (BL Lacertae object), Gal (galaxy).
Note on z:
  Redshift from:
  Wampler & Ponz (1985ApJ...298..448W)
  Green et al.   (1986ApJS...61..305G)
  Osterbrock & Pogge (1987ApJ...323..108O)
  Lipovetsky et al.  (1988SoSAO..55....5L)
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Byte-by-byte Description of file: notes
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   Bytes Format  Units   Label      Explanations
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   1-  2  I2     ---     Note      *[1/33] Note number
   4- 11  A8     ---     Object     Coordinate-based object name
  13-164  A152   ---     Text       Text of the note
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Note on Note:
  If this field is blank, the data in field Text is a continuation
  from the previous record.
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Origin: AAS CD-ROM series, Volume 6, 1996         Lee Brotzman [ADS] 07-Mar-1996
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(End)                                                         [CDS]  05-Sep-1996