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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 71 60 Spectral analysis of Abell 2104
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See also:
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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)
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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 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.
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History:
Prepared via OCR at CDS, and verified with a copy supplied by
Heinz Andernach.
(End) Gregory Thureau, Patricia Bauer [CDS] 09-Mar-2001