VII/184 Survey of 108 E-S0 galaxies (Michard+, 1993-94)
Survey of 108 E-S0 RSA galaxies
Michard R., Marchal J.
<Astron. Astrophys. Suppl. Ser. 98, 29 (1993)>
<Astron. Astrophys. 283, 779 (1994)>
<Astron. Astrophys. Suppl. Ser. 105, 481 (1994)>
=1993A&AS...98...29M 1993A&AS...98...29M
=1994A&A...283..779M 1994A&A...283..779M
=1994A&AS..105..481M 1994A&AS..105..481M
ADC_Keywords: Galaxies, Markarian; Morphology; Photometry
Description:
Detailed data are available from our survey, results of which were
published in A&A, in a series of papers.
Abstract:
A survey has been performed of the morphological and photometric
properties of 108 E-S0 galaxies out of a complete sample of 112: this
sample is built from the Revised Shapley-Ames Catalogue (RSA) keeping
objects with δ>-10deg and V0<3000km/s, rejecting SB0's and
Local Group dwarfs. The data were mainly derived from our CCD
observations at Observatoire de Haute-Provence: the camera allowed
fields of 4x7arcmin (or 7x7 from the last run), the seeing being
generally in the 2-3arcsec FWHM range. The measurements include the
isophotal analysis according to Carter's (1978) principles, and the
photometric profiles along the two main axis. Opposite semi-axis are
measured separately to detect asymmetries.
File Summary:
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File Name Lrecl Records Explanations
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ReadMe 80 . This file
rsafram 72 213 Observed galaxies and characteristics of the
frame with available data
rsamorp 88 108 Main results of the morphological analysis of
the studied galaxies. First list.
(table2 of 1994A&AS..105..481M 1994A&AS..105..481M)
rsaphot 75 108 Main results of the morphological analysis of
the studied galaxies. Second list.
(table3 of 1994A&AS..105..481M 1994A&AS..105..481M)
rsamuls1 111 214 Initial parameters for photometric measurements
rsamuls2 46 15479 Average magnitudes on axis
rsamuls3 49 15396 Differences between sectors
rsamuls4 50 14967 Gradients on the two axis
rsaresu1 101 214 Initial parameters for isophotal analysis
rsaresu2 93 15182 Isophote parameters
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See also:
VII/51 : Revised Shapley-Ames Catalog of Bright Galaxies (Sandage+, 1981)
Byte-by-byte Description of file: rsafram
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [NGC] Prefix of name
5- 8 I4 --- NGC NGC number
11 A1 --- Color Color of frame
14- 18 A5 --- Code Code number of frame
20- 27 A8 --- Type Hubble type from the Revised Shapley-Ames
Catalogue (RSA)
31- 33 A3 --- Inst. Instrumentation (1)
36- 39 F4.2 arcsec FWHM FWHM of Point Spread Function in arc sec
41- 45 F5.2 mag/arcsec2 SkyBr Sky brightness
47- 49 I3 arcsec Maj Major axis of external fully analysed
isophote
51- 55 F5.2 mag/arcsec2 IsoBr Brightness of the same isophote,
58- 87 A30 --- Notes Individual notes (2)
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Note (1): hpc 120 cm in Haute-Provence with CCD
hpp id. with IIaO plates
t2r 2 m at Pic du Midi, f/10 or f/8 reducer with CCD
t2f id. , f/2.5 or f/3.5 reducer with CCD
Note (2): (1) Frames from the Toulouse team, kindly provided by P. Poulain.
(2) Photometric calibration from Michard and Simien, 1988.
(3) Photometric calibration from Michard, 1985.
(4) Galaxian center saturated.
(5) Frames kindly obtained for us by P. Prugniel.
(6) Frames kindly obtained for us by F. Simien.
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Byte-by-byte Description of file: rsamorp
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Bytes Format Units Label Explanations
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2- 5 I4 --- NGC NGC Number
7- 14 A8 --- RSA Revised Shapley-Ames Catalogue Hubble type
16- 17 I2 --- T RC2 index (de Vaucouleurs Revised
Morphological Type)
19- 20 A2 --- Ph Photometric evidence for bulk-disk
st = strong, ft = faint,
cl = clear, no = not seen
22- 25 F4.2 --- qmin Minimum axis ratio
27- 30 F4.2 [arcsec] log(aq) Major axis of the isophote where qmin was
taken
32- 35 F4.1 --- e*4 Carter coefficient of e4
37- 40 F4.1 --- e*6 Carter coefficient of e6 measured at the same
place as e*4
42- 45 F4.2 --- q25 Value of the axis ratio for the isophote
mu=25 in V light
47- 48 I2 --- DeltaPA Amplitude of the twist of the isophotes
51- 53 A3 --- Bar Presence of a bar (bar or no)
55- 57 A3 --- Dust Presence of dust
duR = dust ring, duL = dust lane
du- if of uncertain geometry,
??? if uncertainty, no = no detection
59- 62 A4 --- Disk Nature of disk
emDi = embedded disk, exDi = extended disk
miDi = mixed disk, no = no detection
?Di if of dubful extension
64- 66 A3 --- R/L Ring or lens presence
rl- = inner ring, -oL = outer lens,
roL = both seen, no = no detection
68- 70 A3 --- Spi Spiral pattern presence
spP = possible spiral pattern,
no = no detection
73- 75 A3 --- Env Envelope classification
spH = spheroidal halo, thD = thick disk
exD = extended disk, pec = peculiar envelope
? if not classified
77- 80 A4 --- Asy Miscellaneous structure
asyC = asymmetries with color effects
asyG = asymmetries without color effects
asy? = color class unknown
no = no significant detected structure
? no suitable observations
83- 88 A6 --- type Revised Hubble type, completed for E objects.
diE = disky E, boE = boxyE,
unE if of undeterminate subclass
p added if the object has a peculiar envelope
SAO, SAB0, SB0 as in the RC2, except that the
r, s varieties are not noted
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Byte-by-byte Description of file: rsaphot
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Bytes Format Units Label Explanations
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2- 5 I4 --- NGC NGC number
8- 9 I2 --- T RC2 index (de Vaucouleurs Revised
Morphological Type)
11- 15 A5 --- Type Revised and complete morphological
classification of rsamorp
17- 21 F5.2 mag VT Asymptotic magnitude either measured from
our V frames, or sometimes converted form B
frames through the RC2 B-V colors
23- 26 F4.2 [arcsec] log(r*e) de Vaucouleurs radius
28- 31 F4.2 [arcsec] log(l*e) Corresponding semi-major axis
33- 37 F5.2 mag/arcmin2 mu*e(V) Mean surface brightness of the effective
isophote in V light
39- 43 F5.2 mag mu0 Adopted distance modulus
45- 49 F5.2 mag BT0 Asymptotic magnitude converted to B light
50- 55 F6.2 mag MT(B) Absolute magnitude
57- 60 F4.2 [kpc] log(R*e) Mean radius of the effective isophote
62- 66 F5.2 mag/arcmin2 mu*e(B) Mean surface brightness of the effective
isophote in B light
68- 71 F4.2 [0.1arcmin] logD25 RC2-like parameter
73- 75 F3.2 --- logR25 RC2-like parameter
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Byte-by-byte Description of file: rsamuls1
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Bytes Format Units Label Explanations
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1 A1 --- --- [n] Prefix for NGC number
2- 5 I4 --- NGC NGC number
6 A1 --- Color Color of the observation
8- 13 A6 --- Frame Serial number for the frame
18- 23 A6 --- OtherName Other name
31- 36 F6.4 arcsec size pixel size
42- 49 F8.5 pix FWHM FWHM of the PSF
51- 52 I2 --- Nharm number of harmonics in Carter's isophotal
representation (always 10)
54- 55 I2 --- Niso number of isophotes in the table
57- 63 F7.2 --- p1 Parameter used to describe the sky level (1)
67- 79 E13.3 --- p2 Parameter used to describe the sky level (1)
81- 87 F7.4 mag cal calibration constant
89- 95 F7.4 mag pSuBr peak surface brightness of the galaxy
100-107 F8.5 mag SuBr surface brightness of the faintest measured
isophote
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Note (1): Those parameters are in frame units and of "house keeping" interest
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Byte-by-byte Description of file: rsamuls2
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Bytes Format Units Label Explanations
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1 A1 --- --- [n] Prefix for NGC number
2- 5 I4 --- NGC NGC number
6 A1 --- Color Color of the observation
8- 13 A6 --- Frame Serial number for the frame
15- 20 F6.2 arcsec a major axis of contour
23- 28 F6.3 mag SuBra surface brightness corresponding to major axis
of contour
32- 37 F6.2 arcsec b minor axis of contour
40- 45 F6.3 mag SuBrb surface brightness corresponding to minor axis
of contour
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Byte-by-byte Description of file: rsamuls3
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Bytes Format Units Label Explanations
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1 A1 --- --- [n] Prefix for NGC number
2- 5 I4 --- NGC NGC number
6 A1 --- Color Color of the observation
8- 13 A6 --- Frame Serial number for the frame
19- 24 F6.2 arcsec Dmaj Distance from center along major axis
27- 32 F6.3 mag Dsubrmaj Difference of surface brightness at opposite
major axis positions of the given central
distance
36- 41 F6.2 arcsec Dmin Distance from center along minor axis
44- 49 F6.3 mag Dsubrmin Difference of surface brightness at opposite
minor axis positions of the given central
distance
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Byte-by-byte Description of file: rsamuls4
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Bytes Format Units Label Explanations
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1 A1 --- --- [n] Prefix for NGC number
2- 5 I4 --- NGC NGC number
6 A1 --- Color Color of the observation
8- 13 A6 --- Frame Serial number for the frame
21- 26 F6.2 arcsec a major axis of contour
28- 34 F7.4 mag/arcsec GradSuBra Gradient of surface brightness along major
axis
37- 42 F6.2 arcsec b minor axis of contour
44- 50 F7.4 mag/arcsec GradSuBrb Gradient of surface brightness along minor
axis
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Byte-by-byte Description of file: rsaresu1
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Bytes Format Units Label Explanations
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1 A1 --- --- [n] Prefix for NGC number
2- 5 I4 --- NGC NGC number
6 A1 --- Color Color of the observation
8- 13 A6 --- Frame Serial number for the frame
16- 21 F6.4 arcsec size Pixel size
23- 30 F8.5 pix FWHM FWHM of the PSF
32- 33 I2 --- Nharm Number of harmonics in Carter's isophotal
representation (always 10)
35- 36 I2 --- Niso Number of isophotes in the table
38- 44 F7.2 --- p1 Parameter used to describe the sky level (1)
46- 47 I2 --- p2 Parameter used to describe the sky level (1)
49- 61 E13.5 --- p3 Parameter used to describe the sky level (1)
63- 69 F7.4 mag Cal Calibration constant
71- 78 F8.2 --- Pint Peak intensity of the galaxy (2)
80- 84 F5.2 --- isof Level of faintest measures isophote (2)
86- 92 F7.4 mag PSuBr Peak surface brightness of the galaxy
94-103 F10.7 mag SuBrf []? Surface brightness of the faintest
measured isophote
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Note (1): Those parameters are in frame units and of "house keeping" interest
Note (2): Those parameters are in frame units
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Byte-by-byte Description of file: rsaresu2
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Bytes Format Units Label Explanations
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1 A1 --- --- [n] Prefix for NGC number
2- 5 I4 --- NGC NGC number
6 A1 --- Color Color of the observation
8- 13 A6 --- Frame Serial number for the frame
18- 21 I4 --- Npix Number of pixels used to describe the isophote
23- 28 F6.2 arcsec MaRE Major axis of the Reference Ellipse (RE)
30- 32 I3 10-3 rRE Axis ratio of the RE
35- 40 F6.2 deg PArRE Position angle of the major axis of the RE
42- 46 I5 10-4 C4 Coefficient of the 4th cosine harmonic
48- 51 I4 10-4 C6 Coefficient of the 6th cosine harmonic
53- 56 I4 10-4 C8 Coefficient of the 8th cosine harmonic
58- 61 I4 10-4 C10 Coefficient of the 10th cosine harmonic
63- 66 I4 10-4 C3 Coefficient of the 3rd cosine harmonic
68- 71 I4 10-4 S3 Coefficient of the 3rd sine harmonic
73- 76 I4 10-4 S2 Coefficient of the 2nd sine harmonic.
This coefficient is expected to be zero if
the isophote is reasonnably well defined.
Significant values occur at low surface
brightness and indicate a poor isophote
representation.
78- 81 I4 10-4 S4 Coefficient of the 4th sine harmonic
83- 86 I4 10-4 S6 Coefficient of the 6th sine harmonic
88- 93 F6.3 mag/arcsec2 SuBr Surface brightness of the isophote
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References:
Carter D., 1978, MNRAS 182, 797
de Vaucouleurs G. et al., 1976, Second Reference Catalogue of Bright
Galaxies, Univ. Texas Publ.
Michard R., Marchal J., 1994, A&A 283, 779
Michard R., Marchal J., 1994, A&AS 105 481
Michard R., Marchal J., 1993, A&AS 98, 29
Sandage A. & Tammann G., 1981, Revised Shapley-Ames Catalogue of Bright
Galaxies, Cargenie Inst. of Washington (Cat. VII/51)
History:
28-Nov-1994: on-line version
23-Aug-2017: units of log(l*e), log(l*e) corrected into
arcsec (instead of kpc), as noticed by Stefano Andreon
(End) Patricia Bauer [CDS] 14-Sep-1994