J/A+A/638/A27 Redshift database towards Shapley Supercluster (Quintana+, 2020)
A redshift database towards the Shapley Supercluster region.
Quintana H., Proust D., Dunner R., Carrasco E.R., Reisenegger A.
<Astron. Astrophys. 638, A27 (2020)>
=2020A&A...638A..27Q 2020A&A...638A..27Q (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Galaxy catalogs ; Redshifts ; Radial velocities
Keywords: galaxies: distances and redshifts -
Abstract:
We present a database and velocity catalogue towards the region of
the Shapley Supercluster based on 18,129 measured velocities for
10,702 galaxies in the approximately 300 square degree area between
12:42:13.219<RA<14:16:59.210 and -38:29:35.70<Dec←23:28:34.90. The
data catalogue contains velocities from the literature found until
2015. It also includes 5,084 velocities, corresponding to 4617
galaxies, observed by us at Las Campanas and CTIO observatories and
not reported individually until now. Of these, 2585 correspond to
galaxies with no other previously published velocity measurement
before 2015. Every galaxy in the velocity database has been identified
with a galaxy extracted from the SuperCOSMOS photometric catalogues.
We also provide a combined average velocity catalogue for all 10702
galaxies with measured velocities, adopting the SuperCOSMOS positions
as a homogeneous base. A general magnitude cut-off at R2=18.0mag was
adopted (with exceptions only for some of the new reported
velocities). In general terms, we confirm the overall structure of the
Shapley Supercluster, as found on earlier papers. However, the more
extensive velocity data show finer structure, to be discussed in a
future publication.
Description:
File database.dat contains a compilation of 18129 radial velocity
(redshift) measurements (both new and from the literature) for 10702
galaxies towards the Shapley Supercluster region
(12:42:13.219<RA<14:16:59.210, -38:29:35.70<Dec←23:28:34.90), matched
to the Supercosmos Sky Surveys (SSS) photometric catalog.
File catalog.dat merges this information, assigning each galaxy a
single position as well as Bj, R1, R2, and I magnitudes from the SSS,
and a single heliocentric radial velocity calculated from the
measurements compiled in database.dat.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 141 10702 *One radial velocity per galaxy (table4)
database.dat 261 18129 *Individual measurements of radial velocities of
the 10702 galaxies (table2)
refs.dat 79 93 References
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Note on catalog.dat: calculated from the measurements in database.dat as
described in the text, with positions and magnitudes from SSS
Note on database.dat: in the region 12:42:13.219<RA<14:16:59.210,
-38:29:35.70<DEC←23:28:34.90 that have a matching object in the SuperCOSMOS
Sky Surveys (SSS) catalog.
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See also:
http://www-wfau.roe.ac.uk/sss/index.html : SuperCOSMOS Sky Surveys Home Page
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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2- 6 I5 --- Index [1/10702] Galaxy index (as in database.dat)
8- 23 A16 --- ID Galaxy identification (as in database.dat),
GHHMMSS.s+DDMMSS
27- 28 I2 h RAh Right ascension (J2000.0)
30- 31 I2 min RAm Right ascension (J2000.0)
33- 38 F6.3 s RAs Right ascension (J2000.0)
40 A1 --- DE- Declination sign (J2000.0)
41- 42 I2 deg DEd Declination (J2000.0)
44- 45 I2 arcmin DEm Declination (J2000.0)
47- 51 F5.2 arcsec DEs Declination (J2000.0)
54- 59 F6.2 mag Bjmag ?=100 Bj magnitude (SSS) (1)
62- 67 F6.2 mag R1mag ?=100 R1 magnitude (SSS) (1)
70- 75 F6.2 mag R2mag ?=100 R2 magnitude (SSS) (1)
78- 83 F6.2 mag Imag ?=100 I magnitude (SSS) (1)
85- 90 I6 pix Area Object angular area (SSS)
93- 98 I6 0.01um Al Object major diameter on the focal plane (SSS)
101-106 I6 0.01um Bl Object minor diameter on the focal plane (SSS)
110-112 I3 deg PA Position angle parameter (SSS)
118 I1 --- Class SSS object type classification (2)
122-127 I6 km/s HVc Heliocentric velocity corrected by the zero
point, as described in accompanying paper
135-137 I3 km/s e_HVc Error in the heliocentric corrected velocity
140-141 I2 --- N Number of velocity measurements available
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Note (1): Magnitude=100.0 means no magnitude given in the SSS.
Note (2): SSS class as follows:
1 = galaxy
2 = star
3 = unclassifiable
4 = noise
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Byte-by-byte Description of file: database.dat
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Bytes Format Units Label Explanations
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2- 6 I5 --- Index [1/10702] Galaxy index (same integer for all
measurements for the same galaxy)
8- 23 A16 --- ID Galaxy identification (based on coordinates),
GHHMMSS.s+DDMMSS
24 A1 --- --- [_]
25 A1 --- Meas [a-k] Measurement identification for given galaxy
27- 56 A30 --- Field Reference to the survey, field or cluster name
to which the source is associated
58- 87 A30 --- N Internal number on each field (1)
89- 90 I2 h RAh Right ascension (J2000.0) (1)
92- 93 I2 min RAm Right ascension (J2000.0) (1)
95-100 F6.3 s RAs Right ascension (J2000.0) (1)
102 A1 --- DE- Declination sign (J2000.0) (1)
103-104 I2 deg DEd Declination (J2000.0) (1)
106-107 I2 arcmin DEm Declination (J2000.0) (1)
109-113 F5.2 arcsec DEs Declination (J2000.0) (1)
117-121 F5.2 --- mag ?=0 Magnitude in original reference (several
photometric systems) (1) (2)
125-130 I6 km/s HRV Measured heliocentric radial velocity (1)
136-139 I4 km/s e_HRV Measurement error for radial velocity (1)
144-147 F4.1 --- R R correlation number of Tonry and Davis
(1979AJ.....84.1511T 1979AJ.....84.1511T) for determining
velocities (1)
149-152 F4.1 --- Nl Number of emission/absorption lines used to
calculate the velocity (1)
157 I1 --- Flag [0/1] Velocity measurement is (1) /is not (0)
considered for further analysis
159-163 A5 --- Ref Reference code, in refs.dat file
170-261 A92 --- Com Additional information about the source
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Note (1): Information from original reference.
Note (2): mag=0.00 means no magnitude given in original reference
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ref Reference code
8- 26 A19 --- BibCode BibCode
28- 50 A23 --- Aut Author's name
53- 79 A27 --- Com Comments
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Acknowledgements:
Andreas Reisenegger, areisene(at)gmail.com
Hernan Quintana, hquintana(at)astro.puc.cl
(End) Hernan Quintana [PUC, Chile], Patricia Vannier [CDS] 13-Apr-2020