J/AJ/109/1608 Near-IR Surface Photometry in Virgo Spirals (Rauscher 1995)
Near-Infrared Surface Photometry and Morphology in Virgo Cluster Spiral Galaxy
Nuclear Regions
Rauscher B.J.
<Astron. J. 109, 1608 (1995)>
=1995AJ....109.1608R 1995AJ....109.1608R
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:
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RA (2000) DE Designation(s)
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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
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File Summary:
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FileName Lrecl Records Explanations
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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
(End) [CDS] 11-Jul-1995