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J/ApJ/542/673    Morphological types of galaxies in clusters   (Fasano+, 2000)

The evolution of the galactic morphological types in clusters. Fasano G., Poggianti B.M., Couch W.J., Bettoni D., Kjaergaard P., Moles M. <Astrophys. J. 542, 673 (2000)> =2000ApJ...542..673F
ADC_Keywords: Clusters, galaxy ; Morphology ; Redshifts Keywords: galaxies: clusters: general - galaxies: evolution - galaxies: structure Abstract: The morphological types of galaxies in nine clusters in the redshift range 0.1≲z≲0.25 are derived from very good seeing images taken at the North Optical Telescope (NOT) and the La Silla-Danish telescopes, with all galaxies at MV←20 and within the central ∼1Mpc2 area being classified. With the purpose of investigating the evolution of the fraction of different morphological types with redshift, we compare our results with the morphological content of nine distant clusters studied by the MORPHS group, five clusters observed with HST/WFPC2 at redshift z=0.2-0.3, and Dressler's large sample of nearby clusters. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 67 10 Cluster parameters table3.dat 59 383 Positions and the morphological classifications of all galaxies in our sample table5.dat 44 23 Cluster backgrounds
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [Abell] 7- 10 I4 --- Abell Cluster number 12 A1 --- n_Abell [ls] Note on Cluster (1) 15- 19 F5.3 --- z Redshift 22- 23 I2 h RAh Right ascension (J2000) 25- 26 I2 min RAm Right ascension (J2000) 28- 29 I2 s RAs Right ascension (J2000) 31 A1 --- DE- Declination sign (J2000) 32- 33 I2 deg DEd Declination (J2000) 35- 36 I2 arcmin DEm Declination (J2000) 38- 39 I2 arcsec DEs Declination (J2000) 42- 45 F4.2 mag E(B-V) Reddening 47 I1 --- Run Run number 49- 51 F3.1 Mpc+2 Area Cluster area 53- 56 F4.2 arcsec Seeing Seeing in arcsec 58- 61 F4.2 kpc Seeingpc Seeing in kpc 63- 67 F5.2 mag rmag Gunn r magnitude limit
Note (1): Two entries for A2192: l: Data refers to four contiguous Gunn r images covering a quite large area s: Data relates to a smaller part of the cluster, for which (B-Gr) colors of galaxies are available, thus allowing a more accurate photometric calibration.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 5 A5 --- --- [Abell] 7- 10 I4 --- Abell Abell cluster number (AAAA) 16- 17 I2 --- Galaxy Galaxy number in Abell cluster (NN) ([FPC2000] ACO AAAA NN in Simbad) 22- 23 I2 h RAh Right Ascension (J2000) 25- 26 I2 min RAm Right Ascension (J2000) 28- 32 F5.2 s RAs Right Ascension (J2000) 36 A1 --- DE- Sign of the Declination (J2000) 37- 38 I2 deg DEd Declination (J2000) 40- 41 I2 arcmin DEm Declination (J2000) 43- 47 F5.2 arcsec DEs Declination (J2000) 52- 59 A8 --- Mtype Galaxy morphological type (? indicates uncertain classification)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Cluster Abell Cluster Name 10- 17 A8 --- Sample Sample from which cluster data was obtained from (1) 19- 23 F5.3 --- z Redshift of the cluster 26- 28 F3.1 --- EField Expected number of field Elliptical galaxies (2) 31- 33 F3.1 --- SOField Expected number of field SO type galaxies (2) 36- 39 F4.1 --- SpField Expected number of field Spiral galaxies (2)
Note (1): References OUR = This work C98 = Couch W.J., Barger A.J., Smail I., Ellis R.S., Sharples R.M., 1998, Cat. J/ApJ/497/188 MORPHS = Dressler A., Oemler A., Couch W.J., Smail I., Ellis R.S., Barger A., Butcher H., Poggianti B.M., Sharples R.M., 1997ApJ...490..577D Note (2): The field galaxies have been determined from the galaxy number counts given by Metcalfe et al (1995MNRAS.273..257M) and the breakdown into morphological classes (E/S0/Sp=18:27:56) was computed for our limiting magnitudes at z∼0.2 from the fits to the differential number counts of the Medium Deep Survey.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 19-Mar-2001
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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