J/AJ/105/1251 Velocities in Pisces-Perseus supercluster. (Wegner+, 1993)
A survey of the Pisces-Perseus supercluster. V. The declination strip +33.5 deg
to +39.5 deg and the main supercluster ridge
Wegner G., Haynes M.P., Giovanelli R.
<Astron. J. 105, 1251 (1993)>
=1993AJ....105.1251W 1993AJ....105.1251W (SIMBAD/NED Reference)
ADC_Keywords: Clusters, galaxy; Galaxies, optical; Combined data;
Radial velocities; H I data; Redshifts
Abstract:
Measurements of 544 radial velocities, 229 optical and 315 in the
21cm HI line, are presented for galaxies, mostly in the declination
strip +33.5 deg<Dec<+39.5deg in the region of the Pisces-Perseus
supercluster. These are combined with other available data to
investigate the linear structure identified as the main supercluster
ridge. The main ridge of the supercluster extends at least 50h^-1Mpc
before it disappears into the zone of avoidance east of Perseus.
Confinement both on the plane of the sky and in the velocity dimension
imply an axial ratio of greater than ten to one and an inclination with
respect to the plane of the sky of less than about 12 degrees. The
smoothed volume density contrast over the whole ridge averages more
than a factor of 6 relative to the average density derived for the
whole sample. The relative proximity, low inclination to the plane of
the sky, and high contrast relative to the foreground and background,
help to make the Pisces-Perseus filament one of the most prominent
features in the extragalactic sky on large scales.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 88 229 Galaxies with new optical redshifts
table1.tex 237 329 LaTeX version of table1
table2.dat 129 315 Parameters of objects observed at 21 cm
table2.tex 254 495 LaTeX version of table2
notes2.dat 79 35 Notes to table2
notes2.tex 76 43 LaTeX version of notes2
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See also:
J/A+AS/130/341 : Groups of Galaxies in PPS (Trasarti-Battistoni 1998)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- CGCG Identification in the Catalog of Galaxies and
Clusters of Galaxies (Zwicky et al. 1961-68
(CGCG)), that is the field number and then
the entry number within that field
8- 13 I6 --- UGC [1/12921]? Uppsala General Catalog (UGC)
entry number (Nilson 1973)
15 A1 --- n_NGC/IC New General Catalogue (NGC) or Index Catalog
(IC) indicator, 'N' or 'I', respectively
16- 19 I4 --- NGC/IC ? NGC/IC number
21- 22 I2 h RAh Right ascension 1950 (1)
23- 24 I2 min RAm Right ascension 1950
25- 28 F4.1 s RAs Right ascension 1950
30 A1 --- DE- Declination sign
31- 32 I2 deg DEd Declination 1950
33- 34 I2 arcmin DEm Declination 1950
35- 36 I2 arcsec DEs Declination 1950
38- 40 A3 --- T Morphological type code index (2)
41- 44 F4.2 arcmin a Major diameter from the UGC where available
or else measured by eye from the PSS prints
45- 49 F5.2 arcmin b Minor diameter
50- 52 I3 deg i [0/180[? Inclination derived from the axial
ratio following Haynes & Giovanelli (HG84).
53- 58 F6.2 mag m(z) Magnitude given in the CGCG or the UGC.
59- 64 F6.2 mag m(c) Corrected magnitude, after applying the
corrections for galactic and internal
extinction, redshift and systematic effects
as discussed by HG84.
65- 70 I6 km/s RV Heliocentric velocity
71- 74 I4 km/s e_RV Standard deviation on RV (3)
76 A1 --- n_RV [eaxy] Spectral features used for RV (4)
77- 82 I6 km/s V(0) Local Group velocity, assuming a correction
for the Sun's motion of 300 sin l cos b,
where l and b are the galactic longitude
and latitude.
83- 88 F6.2 [solLum] log(L) Luminosity, h2L, derived from m(c) and V(0).
------------------------------------------------------------------------------
Note (1):
For galaxies brighter than m=14.5, positions were obtained from
Dressel & Condon (1976). For others, coordinates were obtained from
the CGCG or, when higher accuracy than that of the CGCG is manifest,
they were obtained from the Palomar Sky Survey (PSS) prints using a
standard overlay program, with an estimated accuracy of 10".
Note (2): Morphological type code index:
0 - Elliptical
1 - SO
3 - Sa
5 - Sb
7 - Sc
9 - Irregular
10 - Peculiar, with intermediate types allowed.
A "B" indicates the presence of a bar.
Note (3):
For emission line-derived redshifts, the standard deviation of the
mean for all the lines measured, or ±60 km/s, which is the estimated
error for a single line in this sample. For absorption line-derived
redshifts, errors are estimated from the JKFOUR program, to a minimum
acceptable value of ±25 km/s.
Note (4):
A simple indicator of whether the spectral features used to derive the
redshift were seen in emission (e) or absorption (a). For a handful of
galaxies, velocities were derived from two absorption line spectra (x)
and combining both absorption and emission lines (y).
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- CGCG Identification in the Catalog of Galaxies and
Clusters of Galaxies (Zwicky et al. 1961-68
(CGCG)), that is the field number and then
the entry number within that field
8- 13 I6 --- UGC [1/12921]? Uppsala General Catalog (UGC)
entry number (Nilson 1973)
14 A1 --- m_UGC UGC component designation
15 A1 --- n_NGC/IC New General Catalogue (NGC) or Index Catalog
(IC) indicator, 'N' or 'I', respectively
16- 19 I4 --- NGC/IC ? NGC/IC number
21- 22 I2 h RAh Right ascension 1950 (1)
23- 24 I2 min RAm Right ascension 1950
25- 28 F4.1 s RAs Right ascension 1950
30 A1 --- DE- Declination sign
31- 32 I2 deg DEd Declination 1950
33- 34 I2 arcmin DEm Declination 1950
35- 36 I2 arcsec DEs Declination 1950
38- 40 A3 --- T Morphological type code index (2)
41- 45 F5.2 arcmin a ? Major diameter from the UGC where
available or else measured by eye from the
PSS prints
46- 50 F5.2 arcmin b ? Minor diameter
51- 53 I3 deg i [0/180[? Inclination derived from the axial
ratio following Haynes & Giovanelli (HG84).
55- 59 F5.2 mag m(z) ? Magnitude given in the CGCG or the UGC.
60- 64 F5.2 mag m(c) ? Corrected magnitude, after applying
the corrections for galactic and internal
extinction, redshift and systematic effects
as discussed by HG84.
65- 70 I6 km/s RV 21 cm line heliocentric velocity (6)
71- 76 I6 km/s V(0) Adopted Local Group velocity (7)
77- 80 I4 km/s W1 ? Observed 21 cm profile width, measured at
a level of 50% of the mean signal intensity.
81- 84 I4 km/s W2 ? Observed 21 cm profile width, measured at
a level of 20% of the peak signal intensity.
85- 88 I4 km/s Wc ? 21 cm profile width corrected for viewing
inclination and to the rest frame of the
observer
89- 94 F6.2 Jy.km/s Fobs ? Observed 21 cm line flux
95-100 F6.2 Jy.km/s Fc ? 21 cm line flux, after correction for
pointing, beam dilution, and internal
absorption following HG84.
101-105 F5.2 mJy NWc ? rms noise in baseline 21 cm line profile,
where available.
107-111 F5.2 --- snr ? Signal-to-noise ratio of HI emission
spectrum, measured as the ratio of peak
signal flux to e_Wc, where available.
112-116 F5.2 [solLum] log(L) ? Logarithm of optical luminosity,
log10(h^2 L), with h = H0/100 km/s/Mpc.
117-122 F6.2 [solMass] log(MH) ? Logarithm of HI mass , log10(h^2 M(H)).
124 A1 --- Tel [012B] Telescope identification code for HI
observations (3)
126 I1 --- Q [0/5] Quality code for HI detection (4)
128 I1 --- Ref [1/6] Reference code for HI data (5)
129 A1 --- Note Note flag (see file notes2.dat)
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Note (1):
For galaxies brighter than m=14.5, positions were obtained from
Dressel & Condon (1976). For others, coordinates were obtained from
the CGCG or, when higher accuracy than that of the CGCG is manifest,
they were obtained from the Palomar Sky Survey (PSS) prints using a
standard overlay program, with an estimated accuracy of 10".
Note (2): Morphological type code index:
0 - Elliptical
1 - SO
3 - Sa
5 - Sb
7 - Sc
9 - Irregular
10 - Peculiar, with intermediate types allowed.
A "B" indicates the presence of a bar.
Note (3): Telescope identification code:
0 - Arecibo 305 m with dual circular feed
1 - Green Bank 91 m
2 - Effelsberg 100 m
B - Arecibo 305 m with linear feed major axis mapping.
Note (4): Quality code:
0 - Object considered to be undetected at 21 cm. 21 cm line
observations were performed, so we list the rms noise per
channel of the observations. But no signal was detected; hence
no flux is given.
1 - High quality detection
2 - Marginal to poor detection
3 - Flux and velocity ok, but profile unsuitable for use in
T-F relation
4 - HI seen in absorption
5 - Confused with neighbor
Note (5): The HI data reported here come from one of the following sources:
1 - This survey
2 - Northern Pisces-Perseus region (Haynes et al. 1988)
3 - Isolated galaxy survey (HG84)
4 - Survey of large angular diameter galaxies (Hewitt et al. 1983)
5 - Magri (1990)
6 - Sc galaxy survey (in preparation)
Note (6):
RV measured as the midpoint of the emission profile at a level of 50%
of the mean signal intensity. When the object was considered to be
undetected at 21 cm (Q=0), the velocity corresponds to the frequency
of the central channel of the spectrometer
Note (7):
Adopted Local Group velocity, assuming a correction for the Sun's
motion of 300 sin l cos b, where l and b are the galactic longitude
and latitude. The adopted heliocentric velocity is the 21 cm velocity
if the object is a high quality detection; if not, the optical
velocity is adopted, when available.
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Byte-by-byte Description of file: notes2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 A7 --- Galaxy Galaxy name, either CGCG or U followed by UGC
number, repeated if note spans on lines.
9- 79 A71 --- Text Text of Note
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History:
* 20-Jun-1994: From AAS CD-ROM series, Volume 1, 1993, ReadMe adapted
* 01-Mar-1999: ReadMe revisited at CDS
References:
Dressel, L. L., & Condon, J. J. 1976, ApJS, 31, 187 (1976ApJS...31..187D 1976ApJS...31..187D)
Haynes, M. P., & Giovanelli, R. 1984, AJ, 89, 758 (HG84) (1984AJ.....89..758H 1984AJ.....89..758H)
Haynes, M. P., Giovanelli, R., Starosta, B., & Magri, C. A., 1988, AJ, 95, 607
(1988AJ.....95..607H 1988AJ.....95..607H)
Hewitt, J. N., Haynes, M. P., & Giovanelli, R. 1983, AJ, 88, 272
(1983AJ.....88..272H 1983AJ.....88..272H)
Magri, C. A. 1990, Ph.D. thesis, Cornell University
Nilson, P. 1973, in Uppsala General Catalog, Uppsala Astron. Obs. Ann. 6
(UGC, See Cat. VII/26)
Zwicky, F., Herzog, E., Karpowicz, M., Kowal, C. T., & Wild, P.
1961-1968, Catalogue of Galaxies and Clusters of Galaxies
(California Institute of Technology, Pasadena), Vols. 1-6
(CGCG, see cat. VII/190)
(End) Patricia Bauer [CDS] 20-Jun-1994