J/A+AS/118/111 BVRI photometry of 234 spiral galaxies (Heraudeau+ 1996)
Optical and I-band surface photometry of spiral galaxies. I. The data
Heraudeau P., Simien F.
<Astron. Astrophys. Suppl. Ser. 118, 111 (1996)>
=1996A&AS..118..111H 1996A&AS..118..111H (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, photometry ; Radial velocities
Keywords: galaxies: spiral - galaxies: photometry
Abstract:
We present V- and I-band CCD surface photometry on 234 inclined Sa-Sd
galaxies, completed by similar data in B and R for a reduced
subsample. In this first paper of a series, the reduction of the data
is discussed, and several comparisons are made with other recent
works. Radial profiles are presented for the surface brightness and
the characteristics of ellipses fitted to isophotes; global,
effective, and isophotal parameters are listed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 73 234 Catalog elements
table3 56 476 Observation log
table4 65 476 Photometric results
table5 79 12618 Photometric profiles in B, V, R, and/or I
for 234 galaxies
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 3 I3 --- No Sequence number
5-14 A10 --- Name Object identification
16-16 I1 --- T Coded morphological type
18-21 A4 --- MType ?=XXXX Full morphological type
23-24 I2 h RAh Right Ascension 1995 (hours) (2)
26-27 I2 min RAm Right Ascension 1995 (minutes) (2)
29-32 F4.1 s RAs Right Ascension 1995 (seconds) (2)
34-34 A1 --- DE- Declination 1995 (sign) (2)
35-36 I2 deg DEd Declination 1995 (degrees) (2)
38-39 I2 arcmin DEm Declination 1995 (minutes) (2)
41-42 I2 arcsec DEs Declination 1995 (seconds) (2)
44-48 F5.2 mag Bt ?=99.99 Integrated B magnitude
50-54 F5.2 arcmin D25 Apparent diameter at brightness mu_B=25
56-59 F4.2 --- Eps Ellipticity at brightness mu_B=25
61-65 I5 km/s HRV Heliocentric radial velocity
67-71 F5.2 mag -Mb ?=99.99 Absolute B magnitude (sign reversed) (1)
73-73 I1 --- S Sample
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Note (1): Absolute B magnitude determined from Bt corrected for Galactic
extinction, and from radial velocity corrected corrected for
Virgocentric infall, with H0=75 km/s/Mpc (see Sect. 2.1); when the
corrected V_helio is smaller than 500 km/s, however, we adopted a
distance modulus relying on other parameters provided by LEDA: this is
the case for NGC 762, NGC 2976, and NGC 6503.
Note (2): the equinox was erroneously indicated as 1950 in the original
table; it was corrected into 1995 in February 1997.
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Object identification
10 A1 --- m_Name Multiplicity index on Name
14 A1 --- Filt [BVRI] Photometric filter (B, V, R, or I)
16- 19 I4 s Exp Exposure time
21- 23 F3.1 arcsec Seeing Seeing FWHM
25- 30 A6 --- Run Date of observing run (Month Year)
32- 50 A19 --- Notes Notes
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Byte-by-byte Description of file: table4
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Bytes Format Units Label Explanations
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1- 3 I3 --- No Sequence number
5- 14 A10 --- Name Object identification
16- 18 I3 deg PA Major-axis position angle (North --> East)
20- 23 F4.2 --- Eps Isophote ellipticity (1)
25 I1 --- n_Eps Code for the determination of Epsilon (2)
27- 27 A1 --- Filt [BVRI] Photometric filter (B, V, R or I)
29- 33 F5.2 mag TMag Total magnitude
35- 38 F4.2 mag e_TMag ?=9.99 rms error on TMag
40- 42 I3 arcsec re Semi-major axis of the effective isophote
44- 45 I2 arcsec e_re rms error on re
47- 51 F5.2 mag/arcsec2 mue Surface brightness at re (/ sq. arcsec)
53- 56 F4.2 mag/arcsec2 e_mue rms error on mue
58- 60 I3 arcsec Diso ?=999 Isophotal diameter (3)
62- 63 I2 arcsec e_Diso ?=99 rms error on Diso
65 I1 --- Q Quality parameter (Sect. 3.2)
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Note (1): Determined as specified by parameter C
Note (2): C=1: measurement in I at mu_I=23.5mag/arcsec2;
C=2: in V at mu_V=24mag/arcsec2; C=3: in I at mu_I=22mag/arcsec2;
C=4: in I at mu_I=21mag/arcsec2
Note (3): Major axis of isophote mu_B=25mag/arcsec2, or mu_V=24mag/arcsec2,
or mu_R=24mag/arcsec2, or mu_I=23.5mag/arcsec2
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Byte-by-byte Description of file: table5
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Object identification
12- 18 F7.2 arcsec Rad Semi-major axis
20- 22 I3 deg PA Position angle
24- 27 F4.2 --- Eps Ellipticity
29- 33 F5.2 mag/arcsec2 muB ?=99.99 Surface brightness/sq.arcsec, in B
35- 40 F6.3 mag/arcsec2 e_muB ?=99.99 rms error on muB
42- 46 F5.2 mag/arcsec2 muV ?=99.99 Surface brightness/sq.arcsec, in V
48- 53 F6.3 mag/arcsec2 e_muV ?=99.99 rms error on muV
55- 59 F5.2 mag/arcsec2 muR ?=99.99 Surface brightness/sq.arcsec, in R
61- 66 F6.3 mag/arcsec2 e_muR ?=99.99 rms error on muR
68- 72 F5.2 mag/arcsec2 muI ?=99.99 Surface brightness, in I
74- 79 F6.3 mag/arcsec2 e_muI ?=99.99 rms error on muI
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History:
* 28-Feb-1997: the equinox of positions in table2 was fixed from
1950 to 1995.0 (error confirmed by Philippe Heraudeau)
Courtesy: Philippe Heraudeau
(End) Heraudeau & Simien [CRAL], Patricia Bauer [CDS] 31-May-1996