J/A+A/363/440 BR photometry of Abell 2104 (Liang+, 2000)
Probing the gravitational potential of a nearby lensing cluster Abell 2104. Liang H., Lemonon L., Valtchanov I., Pierre M., Soucail G. <Astron. Astrophys. 363, 440 (2000)> =2000A&A...363..440L
ADC_Keywords: Clusters, galaxy ; Redshifts ; Photometry Keywords: galaxies: clusters: general - galaxies: clusters: individual: A 2104 - cosmology: dark matter - cosmology: gravitational lensing Abstract: The cluster Abell 2104 is one of the lowest redshift clusters (z=0.153) known to have a gravitational lensing arc. We present detailed analysis of the cluster properties such as the gravitational potential using the X-ray data from ROSAT (HRI) and ASCA, as well as optical imaging and spectroscopic data from the CFHT. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 71 60 Spectral analysis of Abell 2104
See also: Byte-by-byte Description of file: table2.dat Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [LLV2000] [102/329]+ Internal reference number to Fig. 3 6- 7 I2 h RAh Right ascension (J2000) (1) 9- 10 I2 min RAm Right ascension (J2000) 12- 15 F4.1 s RAs Right ascension (J2000) 17 A1 --- DE- Declination sign (J2000) 18- 19 I2 deg DEd Declination (J2000) 21- 22 I2 arcmin DEm Declination (J2000) 24- 27 F4.1 arcsec DEs Declination (J2000) 30- 35 F6.4 --- z Redshift 36 A1 --- n_z [*] *: Presence of emission lines (2) 38- 40 I3 km/s DV Internal measurement error (3) 43 I1 ---- q_z [1/2] Redshift measurement quality (4) 45- 49 F5.2 mag Rmag R magnitude 52- 55 F4.2 mag e_Rmag rms uncertainty on Rmag 58- 62 F5.2 mag Bmag B magnitude 65- 68 F4.2 mag e_Bmag rms uncertainty on Bmag 71 A1 --- Member [YN] Cluster member galaxy (within ±3000km/s of the cD galaxy)
Note (1): Galaxy positions were determined from the R image and should have an accuracy of ∼0.7" rms. Note (2): Presence of emission lines: 102: Hβ, Hα, [N II], [S II] 117: Hβ, [O III], Hα, [N II], [S II] 214 Hβ, Hα 313 Hβ, Hα, [N II], [S II] 320 He I, Hα, [N II], [S II] 214 [O II], [O III], Hβ, Hα, [N II], [S II] Note (3): This parameter is related to the correlation coefficient Ccorr by the formula DVmag=k/(1+Ccorr) where k∼870km/s was determined by the Tonry and Davis (1979AJ.....84.1511T) method. Note (4): Redshift measurement quality: 1: highest peak in the correlation function and checked by hand 2: highest peak in the correlation function but unable to be checked by hand.
History: Prepared via OCR at CDS, and verified with a copy supplied by Heinz Andernach.
(End) Gregory Thureau, Patricia Bauer [CDS] 09-Mar-2001
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