J/A+A/632/A36 Strong lensing models of 8 CLASH clusters (Caminha+, 2019)
Strong lensing models of eight CLASH clusters from extensive spectroscopy:
accurate total mass reconstructions in the cores.
Caminha G.B., Rosati P., Grillo C., Rosani G., Caputi K.I., Meneghetti M.,
Mercurio A., Balestra I., Bergamini P., Biviano A., Nonino M., Umetsu K.,
Vanzella E., Annunziatella M., Broadhurst T., Delgado-Correal C.,
Demarco R., Koekemoer A.M., Lombardi M., Maier C., Verdugo M., Zitrin A.
<Astron. Astrophys. 632, A36 (2019)>
=2019A&A...632A..36C 2019A&A...632A..36C (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Redshifts
Keywords: galaxies: clusters: general - gravitational lensing: strong -
dark matter
Abstract:
We carry out a detailed strong lensing analysis of a sub-sample of
eight galaxy clusters of the Cluster Lensing And Supernova survey with
Hubble (CLASH), in the redshift range of zcluster=[0.23-0.59], using
extensive spectroscopic information, primarily from the Multi Unit
Spectroscopic Explorer (MUSE) archival data and complemented with
CLASH-VLT redshift measurements. The observed positions of the
multiple images of strongly lensed background sources are used to
constrain parametric models describing the cluster total mass
distributions. Different models are tested in each cluster depending
on the complexity of its mass distribution and on the number of
detected multiple images. Four clusters show more than five
spectroscopically confirmed multiple image families. In this sample,
we do not make use of families that are only photometrically
identified, in order to reduce model degeneracies between the values
of the total mass of a cluster and of the source redshifts, and
systematics due to the potential misidentifications of some multiple
images. For the remaining four systems, we use additional families
without any spectroscopic confirmation to increase the number of
strong lensing constraints up to the number of free parameters in our
parametric models. We present spectroscopic confirmation of 27
multiply lensed sources, with no previous spectroscopic measurements,
spanning over the redshift range of zsrc=[0.7-6.1]. Moreover, we
confirm an average of 48 galaxy members in the core of each cluster,
thanks to the high efficiency and large field of view of MUSE. We use
this information to derive precise strong lensing models, projected
total mass distributions and magnification maps. We show that, despite
having different properties (i.e., number of mass components, total
mass, redshift, etc), the projected total mass and mass density
profiles of all clusters have very similar shapes, when rescaled by
independent measurements of M200c and R200c. Specifically, we measure
the mean value of the projected total mass of our cluster sample
within 10 (20)% of R200c to be 0.13 (0.32) of M200c, with a remarkably
small scatter of 5 (6)%. Furthermore, the large number of high-z
sources and the precise magnification maps derived in this work for
four clusters add up to the sample of high-quality gravitational
telescopes to be used to study the faint and distant Universe.
Description:
The cluster sample presented in this work has been observed by the
CLASH survey, using the ACS and WFC3 cameras onboard HST, in 16
filters from the UV through the NIR.
Up to now, a total of 11 CLASH clusters have been observed by MUSE in
different programmes. In previous works, we have used deep observations
on three targets, MACS J1206, Abell 1063 and MACS J0416 (Caminha et
al. 2016A&A...587A..80C 2016A&A...587A..80C, 2017, Cat. J/A+A/600/A90,
2017A&A...607A..93C 2017A&A...607A..93C), where the last two clusters are also part of the
HFF initiative. In this work, we make use of archival MUSE data from
the ESO programme IDs 095.A-0525, 096.A-0105, 097.A-0909 and
098.A-0590 (P.I. J.-P. Kneib) on the remaining eight clusters.
The observations were carried out during the period between 2015-June
and 2017-January, with observation blocks (OBs) consisting of two
exposures of ∼1465 seconds.
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 64 961 Full redshift catalogue
tablea2.dat 91 150 Information on the spectroscopically
identified multiple images
list.dat 97 160 List of model files
MACSJ0329-P2-shear/* . 14 MACS J0329.7-0211 P2 model results
MACSJ0329-P2-shear_mcmc/* . 6 MACS J0329.7-0211 P2 input files
MACSJ0429-P1/* . 14 MACS J0429.6-0253 P1 model results
MACSJ0429-P1_mcmc/* . 6 MACS J0429.6-0253 P1 input files
MACSJ1115-P1/* . 14 MACS J1115.9+0129 P1 model results
MACSJ1115-P1_mcmc/* . 6 MACS J1115.9+0129 P1 input files
MACSJ1311-P1/* . 14 MACS J1311.0-0310 P1 model results
MACSJ1311-P1_mcmc/* . 6 MACS J1311.0-0310 P1 input files
MACSJ1931-P2_circular/* . 14 MACS J1931.8-2635 P2 model results
MACSJ1931-P2circularmcmc/* . 6 MACS J1931.8-2635 P2 input files
MACSJ2129-P2/* . 14 MACS J2129.4-0741 P2 model results
MACSJ2129-P2_mcmc/* . 6 MACS J2129.4-0741 P2 input files
RXJ1347-P2-shear/* . 14 RX J1347.5-1145 P2 model results
RXJ1347-P2-shear_mcmc/* . 6 RX J1347.5-1145 P2 input files
RXJ2129-P1/* . 14 RX J2129.7+0005 P1 model results
RXJ2129-P1_mcmc/* . 6 RX J2129.7+0005 P1 input files
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See also:
J/A+A/600/A90 : MACS J0416.1-2403 redshift catalogue (Caminha+, 2017)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 26 A26 --- Muse ID build from the cluster name and object RA
and Dec, ANNNN-JHHMMSS.ss+DDMMSS.ss (1)
28- 38 F11.7 deg RAdeg Observed right ascension (J2000)
40- 50 F11.7 deg DEdeg Observed declination (J2000)
52- 57 F6.4 --- z Spectroscopic redshift
60 I1 --- q_z [2/9] Redshift quality flag (2)
64 I1 --- Mult Number of entries of the same object in this
catalogue used to indicate multiply lensed
sources
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Note (1): Cluter names as follows:
M0329 = MACS J0329.7-0211
M0429 = MACS J0429.6-0253
M1115 = MACS J1115.9+0129
M1311 = MACS J1311.0-0310
M1931 = MACS J1931.8-2635
M2129 = MACS J2129.4-0741
R1347 = RX J1347.5-1145
R2129 = RX J2129.7+0005
Note (2): Redshift quality flag as follows:
2 = likely
3 = secure measurement
9 = single line measurement
4 = field star
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Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- Cluster Cluster name
12- 20 A9 --- ID Multiple image designation
22- 33 F12.8 deg RAdeg Right ascension (J2000)
35- 49 F15.11 deg DEdeg Declination (J2000)
51- 56 F6.4 --- zMUSE ? Muse redshift
59- 64 F6.4 --- zp1 ? Previous redshift
65- 67 A3 --- r_zp1 Reference for zp1 (1)
69- 73 F5.3 --- zp2 ? Previous redshift
76 A1 --- r_zp2 Reference for zp2 (1)
78 A1 --- ---
79- 83 F5.3 --- zp3l ? Lower value of previus redhsift interval
84 A1 --- --- [-]
85- 89 F5.3 --- zp3u ? Upper value of previus redhsift interval
90 A1 --- ---
91 A1 --- r_zp3l Reference for zp3 (1)
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Note (1): References as follows:
a = Spectroscopic redshifts from Belli et al. (2013ApJ...772..141B 2013ApJ...772..141B)
b = Spectroscopic redshifts from CLASH-VLT (Rosati et al., in prep.)
c = Spectroscopic redshift from Vanzella et al. (in prep.)
d = Spectroscopic confirmation from Huang et al. (2016ApJ...823L..14H 2016ApJ...823L..14H)
e = Photometric redshift limits from Molino et al. (2017MNRAS.470...95M 2017MNRAS.470...95M)
f = Independent spectroscopic confirmations from Ravindranath & Ho
(2002ApJ...577..133R 2002ApJ...577..133R), Bradac et al. (2008ApJ...681..187B 2008ApJ...681..187B),
Halkola et al. (2008A&A...481...65H 2008A&A...481...65H)
g = Spectroscopic redshift from Cohen & Kneib (2002ApJ...573..524C 2002ApJ...573..524C)
h = Spectroscopic redshift obtained from the public GLASS catalogues
Treu et al. (2015, Cat. J/ApJ/812/114)
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Byte-by-byte Description of file: list.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 51 A51 --- FileName Name of the file (1)
53- 97 A45 --- Title Title of the file
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Note (1): all files related to the strong lens models in the paper
Caminha+2019 A&A accepted (https://arxiv.org/abs/1903.05103).
Please note that the 'gold' sample, i.e. the clusters with good SL constraints
consists of RXJ2129, MACS1931, MACS0329 and MACS2129.
The 'silver' sample lacs of a large number of SL constraints and is composed
by MACS1115, MACS0429, RXJ1347 and MACS1311. In the future some of these
clusters might have updated SL models in the view of new data.
The folder names are the same model IDs of the paper.
The names ending with *_mcmc have the lenstool input files and the chains
(bayes.dat files).
The other folders contain the best fit configuration file and convergence,
shear and magnification maps. All the quantities are rescaled to DLS/DS=1.
If you use the information in these files please cite the paper Caminha+2019
A&A accepted (https://arxiv.org/abs/1903.05103), and for any further
question contact the author via the e-mail gbcaminha(at)gmail.com
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History:
25-Nov-2019: From Gabriel Bartosch Caminha, gbcaminha(at)gmail.com
27-Jan-2020: tablea2.dat added
Acknowledgements:
when using these redshifts, please acknowledge the papers
Caminha et al. 2019 (arXiv:1903.05103), and the VLT programme IDs 095.A-0525,
096.A-0105, 097.A-0909 and 098.A-0590
(End) Patricia Vannier [CDS] 16-Oct-2019