J/A+A/547/A44 Velocities and BR photometry of Abell 1995 (Boschin+, 2012)
Structure of Abell 1995 from optical and X-ray data: a galaxy cluster with an
elongated radio halo.
Boschin W., Girardi M., Barrena R.
<Astron. Astrophys., 547, A44-44 (2012)>
=2012A&A...547A..44B 2012A&A...547A..44B
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Radial velocities
Keywords: galaxies: clusters: individual: Abell 1995 -
galaxies: clusters: general - galaxies: kinematics and dynamics -
X-rays: galaxies: clusters
Abstract:
Abell 1995 is a puzzling galaxy cluster hosting a powerful radio halo,
but it has not yet been recognized as a obvious cluster merger, as
usually expected for clusters with diffuse radio emission.
We aim at an exhaustive analysis of the internal structure of Abell
1995 to verify that this cluster is really dynamically relaxed, as
reported in previous studies.
We base our analysis on new and archival spectroscopic and photometric
data for 126 galaxies in the field of Abell 1995. The study of the hot
intracluster medium was performed on X-ray archival data.
Description:
We performed spectroscopic observations of A1995 in May 2009. We used
the instrument DOLORES at TNG1 in MOS mode with the LR-B grism, which
covers the wavelength range 3000-8430Å.
We performed photometric observations of A1995 in January 2008 by
using the Wide Field Camera (WFC3) mounted on the 2.5m INT Telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 54 126 Catalog of 126 galaxies in the field of A1995
with measured radial velocities
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- ID Sequential number
4 A1 --- n_ID [+] indicates the central galaxy (BCG)
6- 7 I2 --- IDm ? Member sequential number
9- 10 I2 h RAh Right ascension (J2000)
12- 13 I2 min RAm Right ascension (J2000)
15- 19 F5.2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 31 F4.1 arcsec DEs Declination (J2000)
33- 37 F5.2 mag Bmag Johnson B magnitude
39- 43 F5.2 mag Rcmag Cousins R magnitude
45- 50 I6 km/s HRV Heliocentric radial velocity (HRV=cz☉)
52- 54 I3 km/s e_HRV rms uncertainty on HRV
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 28-Jan-2013