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J/AJ/109/1608     Near-IR Surface Photometry in Virgo Spirals (Rauscher 1995)
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Near-Infrared Surface Photometry and Morphology in Virgo Cluster Spiral Galaxy
Nuclear Regions
     Rauscher B.J.
    <Astron. J. 109, 1608 (1995)>
    =1995AJ....109.1608R
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ADC_Keywords: Photometry, surface ; Photometry, infrared

Abstract:
    This paper presents very high spatial resolution (seeing 0.75 arcsec
    FWHM) K band surface photometry of 15 Virgo cluster spiral galaxy
    nuclear regions (radii <1 kpc). It presents B and I band CCD images of
    13 of these galaxies. The goals of the study were: (1) to begin to
    establish a K band baseline of normal spiral galaxy nuclear regions
    against which peculiar galaxies may be compared, (2) to provide better
    constraints on N-body models, and (3) to complement near-infrared
    studies of large scale structure in spiral galaxies with very high
    resolution imaging of the important nuclear regions. The principal
    findings are: (1) between 1/4 and 1/3 of these nuclear regions show K
    band evidence of triaxiality, (2) approximately 1/2 of these galaxies
    have axisymmetric nuclear regions, and (3) NGC 4321 has a bar that is
    not detectable in the optical images.

Description:
    The tables contain elliptical isophotes interactively fit to the K
    images using the Space Telescope Science Data Analysis Software
    (STSDAS) task ELLIPSE.

Objects:
    -----------------------------------------
      RA (2000) DE   Designation(s)
    -----------------------------------------
    12 13.7  +14 53  NGC 4192 = M 98
    12 15.9  +13 09  NGC 4216
    12 18.8  +14 25  NGC 4254 = M 99
    12 21.9  +04 28  NGC 4303 = M 61
    12 22.9  +15 49  NGC 4321 = M 100
    12 25.9  +18 13  NGC 4394
    12 27.7  +13 00  NGC 4438
    12 29.0  +03 34  NGC 4457
    12 31.9  +14 25  NGC 4501 = M 88
    12 34.3  +08 11  NGC 4535
    12 35.4  +14 29  NGC 4548 = M 91
    12 36.5  +11 15  NGC 4567
    12 36.5  +11 14  NGC 4568
    12 42.9  +13 16  NGC 4639
    12 43.8  +16 24  NGC 4651
    -----------------------------------------

File Summary:
--------------------------------------------------------------------------------
 FileName    Lrecl    Records   Explanations
--------------------------------------------------------------------------------
ReadMe          80          .   This file
ngc4192.dat     41         18   NGC 4192 K band surface photometry
ngc4216.dat     41         11   NGC 4216 K band surface photometry
ngc4254.dat     41         20   NGC 4254 K band surface photometry
ngc4303.dat     41         17   NGC 4303 K band surface photometry
ngc4321.dat     41         23   NGC 4321 K band surface photometry
ngc4394.dat     41         18   NGC 4394 K band surface photometry
ngc4438.dat     41         20   NGC 4438 K band surface photometry
ngc4457.dat     41         18   NGC 4457 K band surface photometry
ngc4501.dat     41         17   NGC 4501 K band surface photometry
ngc4535.dat     41         20   NGC 4535 K band surface photometry
ngc4548.dat     41         16   NGC 4548 K band surface photometry
ngc4567.dat     41         11   NGC 4567 K band surface photometry
ngc4568.dat     41         24   NGC 4568 K band surface photometry
ngc4639.dat     41         23   NGC 4639 K band surface photometry
ngc4651.dat     41         22   NGC 4651 K band surface photometry
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Byte-by-byte Description of file: *.dat
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   Bytes Format  Units       Label      Explanations
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   1- 6   F6.3   arcsec      MajAxis    Semi-major axis
   7-14   F8.3   mag/arcsec2 SurfBr     Surface brightness
  15-19   F5.2   mag/arcsec2 e_SurfBr   Surface brightness relative error
  20-26   F7.3   ---         Ellip      Ellipticity
  27-31   F5.2   ---         e_Ellip    Ellipticity probable error
  32-36   I5     deg         PA         Position angle, north through east
  37-41   I5     deg         e_PA       Position angle probable error
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Origin: AAS CD-ROM series, Volume 4, 1995         Lee Brotzman [ADS] 04-May-1995
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(End)                                                         [CDS]  11-Jul-1995