J/MNRAS/372/1425 Gravitational lensing analysis of Abell 1689 (Halkola+, 2006)
Parametric strong gravitational lensing analysis of Abell 1689.
Halkola A., Seitz S., Pannella M.
<Mon. Not. R. Astron. Soc., 372, 1425-1462 (2006)>
=2006MNRAS.372.1425H 2006MNRAS.372.1425H
ADC_Keywords: Clusters, galaxy ; Gravitational lensing ; Morphology ;
Velocity dispersion ; Redshifts
Keywords: gravitational lensing - galaxies: clusters: individual: Abell 1689 -
dark matter
Abstract:
We have derived the mass distribution of galaxy cluster Abell 1689
within 0.3h-170Mpc of the cluster centre using its strong lensing
(SL) effect on 32 background galaxies, which are mapped in altogether
107 multiple images. The multiple images are based on some from the
literature with modifications to both include new and exclude some of
the original image systems. The cluster profile is explored further
out to ∼2.5h-170Mpc with weak lensing (WL) shear measurements from
the literature.
The masses of ∼200 cluster galaxies are measured with the Fundamental
Plane (FP) in order to model accurately the small-scale mass structure
in the cluster. The cluster galaxies are modelled as elliptical
truncated isothermal spheres. The scalings of the truncation radii
with the velocity dispersions of galaxies are assumed to match those
of: (i) field galaxies; and (ii) theoretical expectations for galaxies
in dense environments. The dark matter (DM) component of the cluster
is described by either non-singular isothermal ellipsoids (NSIE) or
elliptical versions of the universal DM profile (elliptical Navarro,
Frenk & White, ENFW). To account for substructure in the DM we allow
for two DM haloes.
Description:
We have used archived optical HST (Wide Field Planetary Camera 2,
WFPC2, and Advanced Camera for Surveys, ACS) data in filters F555W and
F814W (WFPC2) and F475W, F625W, F775W and F850LP (ACS).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb1.dat 82 80 Galaxy properties from fitting cluster galaxies
with a Sersic profile. The parameters of the 80
most massive galaxies are tabulated.
tablec2.dat 67 126 Images used in this study
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Byte-by-byte Description of file: tableb1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- [HSP2006] Galaxy sequential number
4- 5 I2 h RAh Right ascension (J2000)
7- 8 I2 min RAm Right ascension (J2000)
10- 14 F5.2 s RAs Right ascension (J2000)
16 A1 --- DE- Declination sign (J2000)
17 I1 deg DEd Declination (J2000)
19- 20 I2 arcmin DEm Declination (J2000)
22- 26 F5.2 arcsec DEs Declination (J2000)
28- 32 F5.2 mag F775W Total F775W AB magnitude (1)
34- 37 F4.2 mag e_F775W rms uncertainty on F775Wmag
39- 41 F3.1 --- Ser Sersic value of the profile
43- 45 F3.1 --- e_Ser rms uncertainty on Ser
47- 50 F4.1 kpc Re Circularized physical half light radius
52- 54 F3.1 kpc e_Re rms uncertainty on Re
56- 59 F4.2 --- 1-b/a Galaxy ellipticity
61- 64 F4.2 --- e_1-b/a rms uncertainty on 1-b/a
66- 68 I3 deg PA Galaxy position angle
70 I1 deg e_PA rms uncertainty on PA
72- 74 I3 km/s sigma Estimated galaxy velocity dispersion (2)
76- 78 I3 km/s sigmaU Upper value of galaxy velocity dispersion
(1σ range)
80- 82 I3 km/s sigmaL Lower value of galaxy velocity dispersion
(1σ range)
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Note (1): Obtained from the surface brightness profile fitting.
Note (2): See text for details
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Byte-by-byte Description of file: tablec2.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Arc Arc designation ([HSP2006] Arc NN.a in Simbad)
6- 9 F4.1 --- [BBC2005] ? Broadhurst et al., 2005, Cat. J/ApJ/621/53
identification number
11- 12 I2 h RAh Right ascension (J2000)
14- 15 I2 min RAm Right ascension (J2000)
17- 21 F5.2 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24 I1 deg DEd Declination (J2000)
26- 27 I2 arcmin DEm Declination (J2000)
29- 33 F5.2 arcsec DEs Declination (J2000)
35- 38 F4.2 --- zp ? Photometric redshift, this work
40- 43 F4.2 --- e_zp ? rms uncertainty on zp
45- 48 F4.2 --- zbr ? Photometric redshift, Broadhurst et al.
(2005, Cat. J/ApJ/621/53)
50- 53 F4.2 --- E_zbr ? Error on zbr (upper limit)
55- 58 F4.2 --- e_zbr ? Error on zbr (lower limit)
60- 64 F5.3 --- zs ? Spectroscopic redshift from r_zs
65- 67 A3 --- r_zs [def, ] Reference for zs (1)
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Note (1): Reference for zs as follows:
d = Spectroscopic redshift, Golse (2002, PhD thesis,
Laboratoire d'Astrophysique de l'Observatoire Midi-Pyrenees).
e = Spectroscopic redshift, Frye et al. (2002ApJ...568..558F 2002ApJ...568..558F).
f = This redshift is taken from Broadhurst et al. (2005,
Cat. J/ApJ/621/53) who quote Fort et al. (1997A&A...321..353F 1997A&A...321..353F)
as the source of the redshift. We have not been able to confirm
this redshift. The use of the redshift is hence questionable.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Aug-2007