This content will become publicly available on November 5, 2020
Ellipticity of brightest cluster galaxies as tracer of halo orientation and weak-lensing mass bias
Abstract
ABSTRACT Weak-lensing measurements of the masses of galaxy clusters are commonly based on the assumption of spherically symmetric density profiles. Yet, the cold dark matter model predicts the shapes of dark matter haloes to be triaxial. Halo triaxiality, and the orientation of the major axis with respect to the line of sight, are expected to be the leading cause of intrinsic scatter in weak-lensing mass measurements. The shape of central cluster galaxies (brightest cluster galaxies; BCGs) is expected to follow the shape of the dark matter halo. Here we investigate the use of BCG ellipticity as predictor of the weak-lensing mass bias in individual clusters compared to the mean. Using weak-lensing masses $$M^{\rm WL}_{500}$$ from the Weighing the Giants project, and M500 derived from gas masses as low-scatter mass proxy, we find that, on average, the lensing masses of clusters with the roundest/most elliptical 25 per cent of BCGs are biased ∼20 per cent high/low compared to the average, as qualitatively predicted by the cold dark matter model. For cluster cosmology projects utilizing weak-lensing mass estimates, the shape of the BCG can thus contribute useful information on the effect of orientation bias in weak-lensing mass estimates as well as on cluster selection bias.
- Authors:
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 11794, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA, Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA, Department of Physics, Stanford University, 382 Via Pueblo Mall, Stanford, CA 94305, USA
- Evergreen Valley High School, 3300 Quimby Road, San Jose, CA 95148, USA
- Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, CA 94305, USA, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA
- School of Physics and Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455, USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1573879
- Grant/Contract Number:
- SC0018053; AC02-76SF00515
- Resource Type:
- Published Article
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 490 Journal Issue: 4; Journal ID: ISSN 0035-8711
- Publisher:
- Oxford University Press
- Country of Publication:
- United Kingdom
- Language:
- English
Citation Formats
Herbonnet, Ricardo, von der Linden, Anja, Allen, Steven W., Mantz, Adam B., Modumudi, Pranati, Morris, R. Glenn, and Kelly, Patrick L. Ellipticity of brightest cluster galaxies as tracer of halo orientation and weak-lensing mass bias. United Kingdom: N. p., 2019.
Web. doi:10.1093/mnras/stz2913.
Herbonnet, Ricardo, von der Linden, Anja, Allen, Steven W., Mantz, Adam B., Modumudi, Pranati, Morris, R. Glenn, & Kelly, Patrick L. Ellipticity of brightest cluster galaxies as tracer of halo orientation and weak-lensing mass bias. United Kingdom. doi:10.1093/mnras/stz2913.
Herbonnet, Ricardo, von der Linden, Anja, Allen, Steven W., Mantz, Adam B., Modumudi, Pranati, Morris, R. Glenn, and Kelly, Patrick L. Tue .
"Ellipticity of brightest cluster galaxies as tracer of halo orientation and weak-lensing mass bias". United Kingdom. doi:10.1093/mnras/stz2913.
@article{osti_1573879,
title = {Ellipticity of brightest cluster galaxies as tracer of halo orientation and weak-lensing mass bias},
author = {Herbonnet, Ricardo and von der Linden, Anja and Allen, Steven W. and Mantz, Adam B. and Modumudi, Pranati and Morris, R. Glenn and Kelly, Patrick L.},
abstractNote = {ABSTRACT Weak-lensing measurements of the masses of galaxy clusters are commonly based on the assumption of spherically symmetric density profiles. Yet, the cold dark matter model predicts the shapes of dark matter haloes to be triaxial. Halo triaxiality, and the orientation of the major axis with respect to the line of sight, are expected to be the leading cause of intrinsic scatter in weak-lensing mass measurements. The shape of central cluster galaxies (brightest cluster galaxies; BCGs) is expected to follow the shape of the dark matter halo. Here we investigate the use of BCG ellipticity as predictor of the weak-lensing mass bias in individual clusters compared to the mean. Using weak-lensing masses $M^{\rm WL}_{500}$ from the Weighing the Giants project, and M500 derived from gas masses as low-scatter mass proxy, we find that, on average, the lensing masses of clusters with the roundest/most elliptical 25 per cent of BCGs are biased ∼20 per cent high/low compared to the average, as qualitatively predicted by the cold dark matter model. For cluster cosmology projects utilizing weak-lensing mass estimates, the shape of the BCG can thus contribute useful information on the effect of orientation bias in weak-lensing mass estimates as well as on cluster selection bias.},
doi = {10.1093/mnras/stz2913},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 4,
volume = 490,
place = {United Kingdom},
year = {2019},
month = {11}
}
Works referenced in this record:
LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters
journal, June 2010
- Okabe, Nobuhiro; Takada, Masahiro; Umetsu, Keiichi
- Publications of the Astronomical Society of Japan, Vol. 62, Issue 3
SExtractor: Software for source extraction
journal, June 1996
- Bertin, E.; Arnouts, S.
- Astronomy and Astrophysics Supplement Series, Vol. 117, Issue 2
Cosmology and astrophysics from relaxed galaxy clusters – I. Sample selection
journal, March 2015
- Mantz, Adam B.; Allen, Steven W.; Morris, R. Glenn
- Monthly Notices of the Royal Astronomical Society, Vol. 449, Issue 1
The hierarchical formation of the brightest cluster galaxies
journal, February 2007
- De Lucia, G.; Blaizot, J.
- Monthly Notices of the Royal Astronomical Society, Vol. 375, Issue 1
Constraints on the Mass–Richness Relation from the Abundance and Weak Lensing of SDSS Clusters
journal, February 2018
- Murata, Ryoma; Nishimichi, Takahiro; Takada, Masahiro
- The Astrophysical Journal, Vol. 854, Issue 2
redMaPPer. I. ALGORITHM AND SDSS DR8 CATALOG
journal, April 2014
- Rykoff, E. S.; Rozo, E.; Busha, M. T.
- The Astrophysical Journal, Vol. 785, Issue 2
Weighing the Giants – I. Weak-lensing masses for 51 massive galaxy clusters: project overview, data analysis methods and cluster images
journal, February 2014
- von der Linden, Anja; Allen, Mark T.; Applegate, Douglas E.
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 1
Spherically averaging ellipsoidal galaxy clusters in X-ray and Sunyaev-Zel’dovich studies - II. Biases
journal, January 2012
- Buote, David A.; Humphrey, Philip J.
- Monthly Notices of the Royal Astronomical Society, Vol. 421, Issue 2
The X-ray brightest clusters of galaxies from the Massive Cluster Survey: The X-ray brightest MACS clusters
journal, June 2010
- Ebeling, H.; Edge, A. C.; Mantz, A.
- Monthly Notices of the Royal Astronomical Society, Vol. 407, Issue 1
Weighing the Giants – II. Improved calibration of photometry from stellar colours and accurate photometric redshifts
journal, February 2014
- Kelly, Patrick L.; von der Linden, Anja; Applegate, Douglas E.
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 1
Cluster Cosmology Constraints from the 2500 deg 2 SPT-SZ Survey: Inclusion of Weak Gravitational Lensing Data from Magellan and the Hubble Space Telescope
journal, June 2019
- Bocquet, S.; Dietrich, J. P.; Schrabback, T.
- The Astrophysical Journal, Vol. 878, Issue 1
Link between brightest cluster galaxy properties and large scale extensions of 38 DAFT/FADA and CLASH clusters in the redshift range 0.2 < z < 0.9
journal, January 2019
- Durret, F.; Tarricq, Y.; Márquez, I.
- Astronomy & Astrophysics, Vol. 622
Rhapsody-G simulations: galaxy clusters as baryonic closed boxes and the covariance between hot gas and galaxies
journal, July 2015
- Wu, Hao-Yi; Evrard, August E.; Hahn, Oliver
- Monthly Notices of the Royal Astronomical Society, Vol. 452, Issue 2
New constraints on gravity from clusters of galaxies
journal, August 2015
- Cataneo, Matteo; Rapetti, David; Schmidt, Fabian
- Physical Review D, Vol. 92, Issue 4
Intracluster light: a luminous tracer for dark matter in clusters of galaxies
journal, October 2018
- Montes, Mireia; Trujillo, Ignacio
- Monthly Notices of the Royal Astronomical Society, Vol. 482, Issue 2
The ROSAT Brightest Cluster Sample -- I. The compilation of the sample and the cluster log N--log S distribution
journal, December 1998
- Ebeling, H.; Edge, A. C.; Bohringer, H.
- Monthly Notices of the Royal Astronomical Society, Vol. 301, Issue 4
Detailed Structural Decomposition of Galaxy Images
journal, July 2002
- Peng, Chien Y.; Ho, Luis C.; Impey, Chris D.
- The Astronomical Journal, Vol. 124, Issue 1
The ellipticity of galaxy cluster haloes from satellite galaxies and weak lensing
journal, January 2018
- Shin, Tae-hyeon; Clampitt, Joseph; Jain, Bhuvnesh
- Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 2
MACS: A Quest for the Most Massive Galaxy Clusters in the Universe
journal, June 2001
- Ebeling, H.; Edge, A. C.; Henry, J. P.
- The Astrophysical Journal, Vol. 553, Issue 2
Weighing the Giants – III. Methods and measurements of accurate galaxy cluster weak-lensing masses
journal, February 2014
- Applegate, Douglas E.; von der Linden, Anja; Kelly, Patrick L.
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 1
Scaling relations for galaxy clusters in the Millennium-XXL simulation: Scaling relations for clusters in the MXXL
journal, October 2012
- Angulo, R. E.; Springel, V.; White, S. D. M.
- Monthly Notices of the Royal Astronomical Society, Vol. 426, Issue 3
CHANDRA CLUSTER COSMOLOGY PROJECT III: COSMOLOGICAL PARAMETER CONSTRAINTS
journal, February 2009
- Vikhlinin, A.; Kravtsov, A. V.; Burenin, R. A.
- The Astrophysical Journal, Vol. 692, Issue 2
Structure and Formation of Elliptical and Spheroidal Galaxies
journal, April 2009
- Kormendy, John; Fisher, David B.; Cornell, Mark E.
- The Astrophysical Journal Supplement Series, Vol. 182, Issue 1
Localized massive halo properties in bahamas and MACSIS simulations: scalings, lognormality, and covariance
journal, May 2018
- Farahi, Arya; Evrard, August E.; McCarthy, Ian
- Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 2
Covariance in the thermal SZ–weak lensing mass scaling relation of galaxy clusters
journal, May 2016
- Shirasaki, Masato; Nagai, Daisuke; Lau, Erwin T.
- Monthly Notices of the Royal Astronomical Society, Vol. 460, Issue 4
A Complete Sample of 12 Very X-Ray Luminous Galaxy Clusters at z > 0.5
journal, May 2007
- Ebeling, H.; Barrett, E.; Donovan, D.
- The Astrophysical Journal, Vol. 661, Issue 1
Weighing the giants – IV. Cosmology and neutrino mass
journal, November 2014
- Mantz, Adam B.; von der Linden, Anja; Allen, Steven W.
- Monthly Notices of the Royal Astronomical Society, Vol. 446, Issue 3
Orientation bias of optically selected galaxy clusters and its impact on stacked weak-lensing analyses
journal, July 2014
- Dietrich, Jörg P.; Zhang, Yuanyuan; Song, Jeeseon
- Monthly Notices of the Royal Astronomical Society, Vol. 443, Issue 2
The Canadian Cluster Comparison Project: detailed study of systematics and updated weak lensing masses★
journal, March 2015
- Hoekstra, Henk; Herbonnet, Ricardo; Muzzin, Adam
- Monthly Notices of the Royal Astronomical Society, Vol. 449, Issue 1
JOINT ANALYSIS OF CLUSTER OBSERVATIONS. II. CHANDRA / XMM-NEWTON X-RAY AND WEAK LENSING SCALING RELATIONS FOR A SAMPLE OF 50 RICH CLUSTERS OF GALAXIES
journal, April 2013
- Mahdavi, Andisheh; Hoekstra, Henk; Babul, Arif
- The Astrophysical Journal, Vol. 767, Issue 2
Cosmology and astrophysics from relaxed galaxy clusters – III. Thermodynamic profiles and scaling relations
journal, January 2016
- Mantz, A. B.; Allen, S. W.; Morris, R. G.
- Monthly Notices of the Royal Astronomical Society, Vol. 456, Issue 4
The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters
journal, June 2018
- Umetsu, Keiichi; Sereno, Mauro; Tam, Sut-Ieng
- The Astrophysical Journal, Vol. 860, Issue 2
On the Accuracy of Weak-Lensing Cluster mass Reconstructions
journal, September 2011
- Becker, Matthew R.; Kravtsov, Andrey V.
- The Astrophysical Journal, Vol. 740, Issue 1
Direct measurement of dark matter halo ellipticity from two-dimensional lensing shear maps of 25 massive clusters★: Measurement of dark matter halo ellipticity
journal, April 2010
- Oguri, Masamune; Takada, Masahiro; Okabe, Nobuhiro
- Monthly Notices of the Royal Astronomical Society
The shapes and alignments of dark matter halos
journal, May 2012
- Schneider, Michael D.; Frenk, Carlos S.; Cole, Shaun
- Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 05
Weak lensing analysis of SZ-selected clusters of galaxies from the SPT and Planck surveys
journal, June 2014
- Gruen, D.; Seitz, S.; Brimioulle, F.
- Monthly Notices of the Royal Astronomical Society, Vol. 442, Issue 2
LoCuSS: THE SUNYAEV–ZEL'DOVICH EFFECT AND WEAK-LENSING MASS SCALING RELATION
journal, July 2012
- Marrone, Daniel P.; Smith, Graham P.; Okabe, Nobuhiro
- The Astrophysical Journal, Vol. 754, Issue 2
Coping with selection effects: a Primer on regression with truncated data
journal, January 2019
- Mantz, Adam B.
- Monthly Notices of the Royal Astronomical Society, Vol. 485, Issue 4
Dark Energy Survey Year 1 results: weak lensing mass calibration of redMaPPer galaxy clusters
journal, October 2018
- McClintock, T.; Varga, T. N.; Gruen, D.
- Monthly Notices of the Royal Astronomical Society, Vol. 482, Issue 1
The ROSAT Brightest Cluster Sample — IV. The extended sample
journal, October 2000
- Ebeling, H.; Edge, A. C.; Allen, S. W.
- Monthly Notices of the Royal Astronomical Society, Vol. 318, Issue 2
The L X ‐ T Relation and Temperature Function for Nearby Clusters Revisited
journal, September 1998
- Markevitch, Maxim
- The Astrophysical Journal, Vol. 504, Issue 1
Halo ellipticity of GAMA galaxy groups from KiDS weak lensing
journal, February 2017
- van Uitert, Edo; Hoekstra, Henk; Joachimi, Benjamin
- Monthly Notices of the Royal Astronomical Society, Vol. 467, Issue 4
The Morphologies and Alignments of gas, Mass, and the Central Galaxies of Clash Clusters of Galaxies
journal, February 2016
- Donahue, Megan; Ettori, Stefano; Rasia, Elena
- The Astrophysical Journal, Vol. 819, Issue 1
Cosmological Parameters from Observations of Galaxy Clusters
journal, September 2011
- Allen, Steven W.; Evrard, August E.; Mantz, Adam B.
- Annual Review of Astronomy and Astrophysics, Vol. 49, Issue 1
COSMOLOGICAL CONSTRAINTS FROM THE SLOAN DIGITAL SKY SURVEY MaxBCG CLUSTER CATALOG
journal, December 2009
- Rozo, Eduardo; Wechsler, Risa H.; Rykoff, Eli S.
- The Astrophysical Journal, Vol. 708, Issue 1
Mass variance from archival X-ray properties of Dark Energy Survey Year-1 galaxy clusters
journal, September 2019
- Farahi, A.; Chen, X.; Evrard, A. E.
- Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 3
Brightest Cluster Galaxy Alignments in Merging Clusters
journal, March 2019
- Wittman, David; Foote, Drake; Golovich, Nathan
- The Astrophysical Journal, Vol. 874, Issue 1
Methods for cluster cosmology and application to the SDSS in preparation for DES Year 1 release
journal, July 2019
- Costanzi, M.; Rozo, E.; Simet, M.
- Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 4
Testing X‐Ray Measurements of Galaxy Clusters with Cosmological Simulations
journal, January 2007
- Nagai, Daisuke; Vikhlinin, Alexey; Kravtsov, Andrey V.
- The Astrophysical Journal, Vol. 655, Issue 1
Weighing simulated galaxy clusters using lensing and X-ray
journal, May 2010
- Meneghetti, M.; Rasia, E.; Merten, J.
- Astronomy and Astrophysics, Vol. 514
The mass–richness relation of optically selected clusters from weak gravitational lensing and abundance with Subaru HSC first-year data
journal, September 2019
- Murata, Ryoma; Oguri, Masamune; Nishimichi, Takahiro
- Publications of the Astronomical Society of Japan, Vol. 71, Issue 5
The impact of baryons on massive galaxy clusters: halo structure and cluster mass estimates
journal, November 2016
- Henson, Monique A.; Barnes, David J.; Kay, Scott T.
- Monthly Notices of the Royal Astronomical Society, Vol. 465, Issue 3
Weighing the giants– V. Galaxy cluster scaling relations
journal, September 2016
- Mantz, Adam B.; Allen, Steven W.; Morris, R. Glenn
- Monthly Notices of the Royal Astronomical Society, Vol. 463, Issue 4
Cosmological hydrodynamical simulations of galaxy clusters: X-ray scaling relations and their evolution
journal, November 2017
- Truong, N.; Rasia, E.; Mazzotta, P.
- Monthly Notices of the Royal Astronomical Society, Vol. 474, Issue 3
The observed growth of massive galaxy clusters - I. Statistical methods and cosmological constraints: Cluster growth: methods and cosmology
journal, July 2010
- Mantz, A.; Allen, S. W.; Rapetti, D.
- Monthly Notices of the Royal Astronomical Society
The ROSAT-ESO Flux Limited X-ray (REFLEX) Galaxy cluster survey: V. The cluster catalogue
journal, September 2004
- Böhringer, H.; Schuecker, P.; Guzzo, L.
- Astronomy & Astrophysics, Vol. 425, Issue 1