J/AJ/139/216 Radial velocities in UGC 842 and NGC 6034 (De Oliveira+, 2010)
Revisiting the fossil group candidates UGC 842 and NGC 6034.
De Oliveira R.L., Carrasco E.R., De Oliveira C.M., Bortoletto D.R.,
Cypriano E., Sodre L., Lima Neto G.B.
<Astron. J., 139, 216-227 (2010)>
=2010AJ....139..216D 2010AJ....139..216D
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Photometry, SDSS ;
Radial velocities
Keywords: cosmology: observations -
galaxies: clusters: individual (UGC 842, NGC 6034) -
galaxies: elliptical and lenticular, cD - galaxies: evolution -
galaxies: kinematics and dynamics - intergalactic medium
Abstract:
We present a new insight on NGC 6034 and UGC 842, two groups of
galaxies previously reported in the literature as being fossil groups.
The study is based on optical photometry and spectroscopy obtained
with the CTIO Blanco telescope and Sloan Digital Sky Survey archival
data.
Description:
Images in the B and R bands of UGC 842 and NGC 6034 were obtained at
the CTIO-Blanco 4.0m telescope on 2005 August 25. The sspectroscopic
observations were made on 2006 August 13 UT with the Hydra-CTIO
multi-object spectrograph, at the CTIO Blanco 4.0m telescope; NGC 6034
was also observed on 2007 April 14, with the same equipment.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 83 20 New radial velocities in the field of UGC 842
table4.dat 84 112 New radial velocities in the field of NGC 6034
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See also:
http://www.sdss.org : SDSS Home Page
Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- Gal Galaxy identification number
7- 9 I3 --- Fib Fiber number
11 I1 --- Run ? Run number (only in table4)
13- 31 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.S)
32 A1 --- n_SDSS [a] Note on SDSS data (1)
34- 38 F5.2 mag g'mag ? SDSS g' magnitude
40- 44 F5.2 mag r'mag ? SDSS r' magnitude
46- 50 F5.2 mag rmag ? r magnitude
52- 56 F5.2 mag bmag ? b magnitude
58- 62 I5 km/s HRVcc ? Heliocentric radial velocity derived using
cross-correlation (absorption-line systems)
64- 66 I3 km/s e_HRVcc ? rms uncertainty on HRVcc
68- 72 F5.2 --- R ? Ratio of the correlation peak height to the
amplitude of the antisymmetric noise
74- 78 I5 km/s HRVem ? Heliocentric radial velocity from emission lines
80- 81 I2 km/s e_HRVem ? rms uncertainty on HRVem
83- 84 I2 --- Nem ? Number of emission lines
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Note (1): a: No magnitude information is available for this galaxy in the
SDSS data.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Mar-2012