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J/A+AS/118/7 Photometry & morphology of UCM galaxies (Vitores+, 1996)
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Photometric and morphological analysis of UCM galaxies.
I. Observations and reductions. Morphological classifications
Vitores A.G., Zamorano J., Rego M., Alonso O., Gallego J.
<Astron. Astrophys. Suppl. Ser. 118, 7 (1996)>
=1996A&AS..118....7V (SIMBAD/NED BibCode)
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ADC_Keywords: Galaxy catalogs ; Morphology ; Redshifts ; Photometry, surface
Keywords: surveys - galaxies: fundamental parameters - galaxies: general -
galaxies: photometry - atlases
Description:
We present the results of Thuan & Gunn r CCD imaging observations of
the Universidad Complutense de Madrid (UCM) sample of emission-line
galaxies (ELGs), selected by the presence of H{alpha} emission in
low-resolution objective prism spectra. In this work we characterize
photometrically and morphologically a total of 212 objects from the
UCM survey. This Paper presents the observations and basic reductions,
and lists a set of photometric parameters calculated for each UCM
object. In addition, for the first time in a ELGs sample, we have
determined the morphological classification of the objects using
simultaneously five different criteria.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 64 212 Apparent and absolute magnitudes of UCM objects
table3.dat 80 212 B+D decomposition parameters for UCM objects
table4.dat 65 212 Photometric parameters of UCM objects
table5.dat 61 212 Mean photometric parameters and concentration
indices of UCM objects.
table6.dat 70 212 Morphological type, according to the different
photometric criteria, for objects of UCM sample
table7.dat 80 519 Special comments on individual UCM objects
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See also:
J/ApJS/95/387 : Survey of emission-line galaxies (Zamorano+ 1994)
J/ApJS/105/343 : Universidad Complutense de Madrid list 2 (Zamorano+ 1996)
J/A+AS/120/323 : Long-slit spectroscopy of UCM galaxies (Gallego+ 1996)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name UCM name
14- 19 F6.2 mag rmag Apparent magnitude in the Thuan-Gunn r band
20- 24 F5.2 mag e_rmag rms uncertainty on r apparent magnitude
27- 34 F8.5 --- z ? Redshift
37- 43 F7.2 Mpc Dist ? Distance
46- 50 F5.2 mag GalExt Galactic extinction
54- 59 F6.2 mag rmagAbs ? Absolute magnitude in the Thuan-Gunn r band
60- 64 F5.2 mag e_rmagAbs ? rms uncertainty on r absolute magnitude
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name UCM name
14- 19 F6.2 mag/arcsec2 SuBrB ? Effective bulge surface brightness
20- 24 F5.2 mag/arcsec2 e_SuBrB ? rms uncertainty on SuBrB
25- 30 F6.2 arcsec radB ? Effective radius of the bulge component
31- 35 F5.2 arcsec e_radB ? rms uncertainty on radB
37- 41 F5.2 --- Eps Ellipticity
42- 47 F6.2 mag/arcsec2 SuBrD ? Disk face-on extrapolated central surface
brightness
48- 52 F5.2 mag/arcsec2 e_SuBrD ? rms uncertainty on SuBrD
53- 58 F6.2 arcsec Length ? Scale length of the disk
59- 63 F5.2 arcsec e_Length ? rms uncertainty on Length
64- 69 F6.2 --- B/D ? Bulge-to-disk ratio
70- 74 F5.2 --- e_B/D ? rms uncertainty on B/D
75- 79 F5.2 --- rms ? rms scatter of the global B+D fit
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name UCM name
16- 21 F6.2 arcsec a Major axis at 24 mag/arcsec2 isophote
24- 29 F6.2 arcsec b Minor axis at 24 mag/arcsec2 isophote
32- 37 F6.2 arcsec Rad1 Equivalent radius at 24 mag/arcsec2 isophote
41- 46 F6.2 mag mag1 Apparent magnitude inside 24 mag/arcsec2 isophote
49- 54 F6.2 arcsec Rad2 Equivalent radius at 24.5 mag/arcsec2 isophote
58- 63 F6.2 mag mag2 Apparent magnit. inside 24.5 mag/arcsec2 isophote
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name UCM name
16- 21 F6.2 arcsec Rad Effective radius
24- 29 F6.2 mag/arcsec2 SuBr Mean surface brightness inside effective radius
32- 37 F6.2 mag/arcsec2 SuBr2 Mean surface brightness inside 24.5 isophote
41- 45 F5.2 --- c31 Concentration index c31 (1)
49- 53 F5.2 --- c42 Concentration index c42 (2)
57- 61 F5.2 --- cin Concentration index cin (alpha = 0.3)
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Note (1): C31 was introduced by deVaucoleurs (1977, 'Evolution of Galaxies
and Stellar Populations' ed. Larson, R. & Tinsley, B., Yale University
Observatory, New Haven, 43) and is the ratio of the radii which
contain 75% and 25% of the total luminosity of the galaxy respectively
(C31=r75/r25)
Note (2): C42 was introduced by Kent (1985, ApJS 59,115) and is obtained
with the ratio of the radii which contain 80% and 20% of the total
luminosity of the galaxy (C42=5log(r80/r20))
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name UCM name
16- 23 A8 --- Mtype1 Morphological classif. according to B/D
25- 32 A8 --- Mtype2 Morphological classif. according to cin (alpha)
vs mean surface brightness inside 24.5 isophote
34- 42 A9 --- Mtype3 Morphological classif. according to c31
44- 50 A7 --- Mtype4 Morphological classif. according to c42
52- 59 A8 --- Mtype5 Morphological classif. according to
mean surface effective brightness
61- 70 A10 --- Mtype Final Type
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name UCM name
15- 80 A66 --- Com Comments (several lines per galaxy)
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Courtesy: <jaz@ucmast.fis.ucm.es>
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(End) Patricia Bauer [CDS] 27-Nov-1995