J/AJ/124/1918 MX northern Abell cluster redshift survey. II. (Miller+, 2002)
The MX northern Abell cluster survey.
II: the Abell/ACO cluster redshifts and spatial analyses.
Miller C.J., Krughoff K.S., Batuski D.J., Hill J.M.
<Astron. J. 124, 1918 (2002)>
=2002AJ....124.1918M 2002AJ....124.1918M
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: galaxies: clusters: general - large-scale structure of universe -
surveys
Abstract:
The MX Northern Abell Cluster Survey II is the final stage of a
program designed to observe rich Abell clusters with m10≤17.0. We
present 1542 new galaxy redshifts within 117 R≥1 Abell cluster fields
that have 16.9≤m10≤17.0, 0h≤RA≤24h, -17°≤DE≤90°, and
|b|≥30°. Of the 117 clusters observed for the MX Survey II, 105
new cluster redshifts were obtained with an average of eight cluster
member galaxy redshifts.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 62 1542 Individual galaxy velocities
table2.dat 40 674 Abell/ACO Cluster Velocities
refs.dat 80 14 References
notes.dat 80 47 MX Survey II Cluster Notes (table 3 of the paper)
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See also:
VII/110 : Rich Clusters of Galaxies (Abell+ 1989)
J/ApJS/115/1 : MX northern Abell cluster redshift survey (Slinglend+ 1998)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- ACO Abell/ACO Field (ANNNN)
7- 25 A19 --- [MKB2002] Object name, [BJ]HHMMSS.ss+DDMMSS.s,
added by CDS (1)
28- 29 I2 h RAh Hour of Right Ascension (J2000)
31- 32 I2 min RAm Minute of Right Ascension (J2000)
34- 38 F5.2 s RAs Second of Right Ascension (J2000)
40 A1 --- DE- Sign of the Declination (J2000)
41- 42 I2 deg DEd Degree of Declination (J2000)
44- 45 I2 arcmin DEm Arcminute of Declination (J2000)
47- 50 F4.1 arcsec DEs Arcsecond of Declination (J2000)
51 A1 --- n_Pos [*] For A2056, J2000 positions from NED (2)
53- 57 I5 km/s cz Redshift velocity (3)
59 A1 --- f_cz [a] Indicates a cD galaxy or brightest central
galaxy in the cluster
61- 62 I2 km/s e_cz Estimated error in cz
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Note (1): Objects identified in Simbad as [MKB2002] JHHMMSS.ss+DDMMSS.s or
[MKB2002] BHHMMSS.ss+DDMMSS.s for A2056 field.
Note (2): For A2056, positions in the original table were given in B1950.
Note (3): As determined from cross-correlation with multiple templates
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- ACO The Abell/ACO cluster number (ANNNN)
7- 8 I2 --- r_sigma Redshift and/or velocity dispersion reference,
in refs.dat file
10- 13 F4.1 mag mag10 ? Tenth brightest galaxy in cluster magnitude (1)
15- 20 A6 --- BM The Bautz-Morgan class (2)
22- 26 A5 km/s mu ? Mean velocity of the galaxies in the cluster
28 A1 --- f_mu [AC] Flag on mu (3)
30- 33 I4 km/s sigma ? The cluster velocity dispersion (4)
35- 38 A4 --- Ncl Number of galaxy velocities used in mu and sigma
40 A1 --- n_ACO [*] indicates a note in notes.dat
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Note (1): As determined by Abell (1958, Cat. VII/4) or ACO. Note that
there is a significant difference between the two in the way mag10
values were assigned.
Note (2): Classification of Abell clusters were carried out by
Leir & van den Bergh (1977, cat. VII/87) and
Abell, Corwin, & Olowin (1989, Cat. VII/110) and references therein.
I = Cluster contains a centrally located cD galaxy;
II = Cluster where the brightest galaxy is intermediate in appearance
between a cD and the Virgo-type giant ellipticals;
III = Cluster contains no dominant galaxies.
Note (3): Flag on mu means the following:
C = Do not appear to be clusters at all, but simply many galaxies
(i.e. 15 or so observed) along the line of sight.
A = Do not have enough measured galaxies for a clear determination.
Note (4): Where available.
For clusters in the MX Survey, this dispersion is only calculated when
five or more galaxies were used to determine the published redshift
(i.e., the dispersion is calculated from the biweight estimate of
scale (Beers et al., 1990AJ....100...32B 1990AJ....100...32B). The dispersions are in the
rest frame of the cluster.
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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- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 46 A23 --- Aut Author's name
49- 80 A32 --- Com Comments
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- ACO The Abell/ACO cluster number
7- 80 A74 --- Notes Further notes (see Table 2)
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History:
* 10-Oct-2003: From electronic version of the journal
* 10-Aug-2006: In table1, for A2056, positions, initially in B1950,
were corrected into J2000 ones (from NED).
* 09-Aug-2007: a similar problem for A2304 (confusion between B1950
and J2000, communicated by Heinz J. Andernach)
* 08-Jun-2009: some missing '+' sign in names added
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 10-Oct-2003