Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal
We examine the relation between the galaxy cluster mass M and Sunyaev-Zeldovich (SZ) effect signal D-A(2) Y-500 for a sample of 19 objects for which weak lensing (WL) mass measurements obtained from Subaru Telescope data are available in the literature. Hydrostatic X-ray masses are derived from XMM-...
Published in: | Astronomy & Astrophysics |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2013
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Subjects: | |
Online Access: | https://research.manchester.ac.uk/en/publications/6d8740c0-9e44-4a6f-a97f-b7c7c920c2bb https://doi.org/Artn A129 10.1051/0004-6361/201219398 |
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openpolar |
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Open Polar |
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The University of Manchester: Research Explorer |
op_collection_id |
ftumanchesterpub |
language |
English |
topic |
x-rays: galaxies: clusters galaxies: clusters: intracluster medium galaxies: clusters: general cosmology: observations weak lensing analysis pre-launch status hubble-space-telescope south-pole telescope x-ray-properties scaling relations xmm-newton dark-matter representative sample parameter-estimation |
spellingShingle |
x-rays: galaxies: clusters galaxies: clusters: intracluster medium galaxies: clusters: general cosmology: observations weak lensing analysis pre-launch status hubble-space-telescope south-pole telescope x-ray-properties scaling relations xmm-newton dark-matter representative sample parameter-estimation Ade, P A R Aghanim, N Arnaud, M Ashdown, M Atrio-Barandela, F Aumont, J Baccigalupi, C Balbi, A Banday, A J Barreiro, R B Bartlett, J G Battaner, E Battye, R Benabed, K Bernard, J P Bersanelli, M Bhatia, R Bikmaev, I Bohringer, H Bonaldi, A Bond, J R Borgani, S Borrill, J Bouchet, F R Bourdin, H Brown, M L Bucher, M Burenin, R Burigana, C Butler, R C Cabella, P Cardoso, J F Carvalho, P Chamballu, A Chiang, L Y Chon, G Clements, D L Colafrancesco, S Coulais, A Cuttaia, F Da Silva, A Dahle, H Davis, R J de Bernardis, P de Gasperis, G Delabrouille, J Democles, J Desert, F X Diego, J M Dolag, K Dole, H Donzelli, S Dore, O Douspis, M Dupac, X Efstathiou, G Ensslin, T A Eriksen, H K Finelli, F Flores-Cacho, I Forni, O Frailis, M Franceschi, E Frommert, M Galeotta, S Ganga, K Genova-Santos, R T Giard, M Giraud-Heraud, Y Gonzalez-Nuevo, J Gorski, K M Gregorio, A Gruppuso, A Hansen, F K Harrison, D Hernandez-Monteagudo, C Herranz, D Hildebrandt, S R Hivon, E Hobson, M Holmes, W A Huffenberger, K M Hurier, G Jagemann, T Juvela, M Keihanen, E Khamitov, I Kneissl, R Knoche, J Kunz, M Kurki-Suonio, H Lagache, G Lamarre, J M Lasenby, A Lawrence, C R Le Jeune, M Leach, S Leonardi, R Liddle, A Lilje, P B Linden-Vornle, M Lopez-Caniego, M Luzzi, G Macias-Perez, J F Maino, D Mandolesi, N Maris, M Marleau, F Marshall, D J Martinez-Gonzalez, E Masi, S Matarrese, S Matthai, F Mazzotta, P Meinhold, P R Melchiorri, A Melin, J B Mendes, L Mitra, S Miville-Deschenes, M A Montier, L Morgante, G Munshi, D Natoli, P Norgaard-Nielsen, H U Noviello, F Osborne, S Pajot, F Paoletti, D Partridge, B Pearson, T J Perdereau, O Perrotta, F Piacentini, F Piat, M Pierpaoli, E Piffaretti, R Platania, P Pointecouteau, E Polenta, G Ponthieu, N Popa, L Poutanen, T Pratt, G W Prunet, S Puget, J L Rachen, J P Rebolo, R Reinecke, M Remazeilles, M Renault, C Ricciardi, S Ristorcelli, I Rocha, G Rosset, C Rossetti, M Rubino-Martin, J A Rusholme, B Sandri, M Savini, G Scott, D Starck, J L Stivoli, F Stolyarov, V Sudiwala, R Sunyaev, R Sutton, D Suur-Uski, A S Sygnet, J F Tauber, J A Terenzi, L Toffolatti, L Tomasi, M Tristram, M Valenziano, L Van Tent, B Vielva, P Villa, F Vittorio, N Wandelt, B D Weller, J White, S D M Yvon, D Zacchei, A Zonca, A Collaboration, Planck Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal |
topic_facet |
x-rays: galaxies: clusters galaxies: clusters: intracluster medium galaxies: clusters: general cosmology: observations weak lensing analysis pre-launch status hubble-space-telescope south-pole telescope x-ray-properties scaling relations xmm-newton dark-matter representative sample parameter-estimation |
description |
We examine the relation between the galaxy cluster mass M and Sunyaev-Zeldovich (SZ) effect signal D-A(2) Y-500 for a sample of 19 objects for which weak lensing (WL) mass measurements obtained from Subaru Telescope data are available in the literature. Hydrostatic X-ray masses are derived from XMM-Newton archive data, and the SZ effect signal is measured from Planck all-sky survey data. We find an M-WL-D-A(2) Y-500 relation that is consistent in slope and normalisation with previous determinations using weak lensing masses; however, there is a normalisation offset with respect to previous measures based on hydrostatic X-ray mass-proxy relations. We verify that our SZ effect measurements are in excellent agreement with previous determinations from Planck data. For the present sample, the hydrostatic X-ray masses at R-500 are on average similar to 20 percent larger than the corresponding weak lensing masses, which is contrary to expectations. We show that the mass discrepancy is driven by a difference in mass concentration as measured by the two methods and, for the present sample, that the mass discrepancy and difference in mass concentration are especially large for disturbed systems. The mass discrepancy is also linked to the offset in centres used by the X-ray and weak lensing analyses, which again is most important in disturbed systems. We outline several approaches that are needed to help achieve convergence in cluster mass measurement with X-ray and weak lensing observations. |
format |
Article in Journal/Newspaper |
author |
Ade, P A R Aghanim, N Arnaud, M Ashdown, M Atrio-Barandela, F Aumont, J Baccigalupi, C Balbi, A Banday, A J Barreiro, R B Bartlett, J G Battaner, E Battye, R Benabed, K Bernard, J P Bersanelli, M Bhatia, R Bikmaev, I Bohringer, H Bonaldi, A Bond, J R Borgani, S Borrill, J Bouchet, F R Bourdin, H Brown, M L Bucher, M Burenin, R Burigana, C Butler, R C Cabella, P Cardoso, J F Carvalho, P Chamballu, A Chiang, L Y Chon, G Clements, D L Colafrancesco, S Coulais, A Cuttaia, F Da Silva, A Dahle, H Davis, R J de Bernardis, P de Gasperis, G Delabrouille, J Democles, J Desert, F X Diego, J M Dolag, K Dole, H Donzelli, S Dore, O Douspis, M Dupac, X Efstathiou, G Ensslin, T A Eriksen, H K Finelli, F Flores-Cacho, I Forni, O Frailis, M Franceschi, E Frommert, M Galeotta, S Ganga, K Genova-Santos, R T Giard, M Giraud-Heraud, Y Gonzalez-Nuevo, J Gorski, K M Gregorio, A Gruppuso, A Hansen, F K Harrison, D Hernandez-Monteagudo, C Herranz, D Hildebrandt, S R Hivon, E Hobson, M Holmes, W A Huffenberger, K M Hurier, G Jagemann, T Juvela, M Keihanen, E Khamitov, I Kneissl, R Knoche, J Kunz, M Kurki-Suonio, H Lagache, G Lamarre, J M Lasenby, A Lawrence, C R Le Jeune, M Leach, S Leonardi, R Liddle, A Lilje, P B Linden-Vornle, M Lopez-Caniego, M Luzzi, G Macias-Perez, J F Maino, D Mandolesi, N Maris, M Marleau, F Marshall, D J Martinez-Gonzalez, E Masi, S Matarrese, S Matthai, F Mazzotta, P Meinhold, P R Melchiorri, A Melin, J B Mendes, L Mitra, S Miville-Deschenes, M A Montier, L Morgante, G Munshi, D Natoli, P Norgaard-Nielsen, H U Noviello, F Osborne, S Pajot, F Paoletti, D Partridge, B Pearson, T J Perdereau, O Perrotta, F Piacentini, F Piat, M Pierpaoli, E Piffaretti, R Platania, P Pointecouteau, E Polenta, G Ponthieu, N Popa, L Poutanen, T Pratt, G W Prunet, S Puget, J L Rachen, J P Rebolo, R Reinecke, M Remazeilles, M Renault, C Ricciardi, S Ristorcelli, I Rocha, G Rosset, C Rossetti, M Rubino-Martin, J A Rusholme, B Sandri, M Savini, G Scott, D Starck, J L Stivoli, F Stolyarov, V Sudiwala, R Sunyaev, R Sutton, D Suur-Uski, A S Sygnet, J F Tauber, J A Terenzi, L Toffolatti, L Tomasi, M Tristram, M Valenziano, L Van Tent, B Vielva, P Villa, F Vittorio, N Wandelt, B D Weller, J White, S D M Yvon, D Zacchei, A Zonca, A Collaboration, Planck |
author_facet |
Ade, P A R Aghanim, N Arnaud, M Ashdown, M Atrio-Barandela, F Aumont, J Baccigalupi, C Balbi, A Banday, A J Barreiro, R B Bartlett, J G Battaner, E Battye, R Benabed, K Bernard, J P Bersanelli, M Bhatia, R Bikmaev, I Bohringer, H Bonaldi, A Bond, J R Borgani, S Borrill, J Bouchet, F R Bourdin, H Brown, M L Bucher, M Burenin, R Burigana, C Butler, R C Cabella, P Cardoso, J F Carvalho, P Chamballu, A Chiang, L Y Chon, G Clements, D L Colafrancesco, S Coulais, A Cuttaia, F Da Silva, A Dahle, H Davis, R J de Bernardis, P de Gasperis, G Delabrouille, J Democles, J Desert, F X Diego, J M Dolag, K Dole, H Donzelli, S Dore, O Douspis, M Dupac, X Efstathiou, G Ensslin, T A Eriksen, H K Finelli, F Flores-Cacho, I Forni, O Frailis, M Franceschi, E Frommert, M Galeotta, S Ganga, K Genova-Santos, R T Giard, M Giraud-Heraud, Y Gonzalez-Nuevo, J Gorski, K M Gregorio, A Gruppuso, A Hansen, F K Harrison, D Hernandez-Monteagudo, C Herranz, D Hildebrandt, S R Hivon, E Hobson, M Holmes, W A Huffenberger, K M Hurier, G Jagemann, T Juvela, M Keihanen, E Khamitov, I Kneissl, R Knoche, J Kunz, M Kurki-Suonio, H Lagache, G Lamarre, J M Lasenby, A Lawrence, C R Le Jeune, M Leach, S Leonardi, R Liddle, A Lilje, P B Linden-Vornle, M Lopez-Caniego, M Luzzi, G Macias-Perez, J F Maino, D Mandolesi, N Maris, M Marleau, F Marshall, D J Martinez-Gonzalez, E Masi, S Matarrese, S Matthai, F Mazzotta, P Meinhold, P R Melchiorri, A Melin, J B Mendes, L Mitra, S Miville-Deschenes, M A Montier, L Morgante, G Munshi, D Natoli, P Norgaard-Nielsen, H U Noviello, F Osborne, S Pajot, F Paoletti, D Partridge, B Pearson, T J Perdereau, O Perrotta, F Piacentini, F Piat, M Pierpaoli, E Piffaretti, R Platania, P Pointecouteau, E Polenta, G Ponthieu, N Popa, L Poutanen, T Pratt, G W Prunet, S Puget, J L Rachen, J P Rebolo, R Reinecke, M Remazeilles, M Renault, C Ricciardi, S Ristorcelli, I Rocha, G Rosset, C Rossetti, M Rubino-Martin, J A Rusholme, B Sandri, M Savini, G Scott, D Starck, J L Stivoli, F Stolyarov, V Sudiwala, R Sunyaev, R Sutton, D Suur-Uski, A S Sygnet, J F Tauber, J A Terenzi, L Toffolatti, L Tomasi, M Tristram, M Valenziano, L Van Tent, B Vielva, P Villa, F Vittorio, N Wandelt, B D Weller, J White, S D M Yvon, D Zacchei, A Zonca, A Collaboration, Planck |
author_sort |
Ade, P A R |
title |
Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal |
title_short |
Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal |
title_full |
Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal |
title_fullStr |
Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal |
title_full_unstemmed |
Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal |
title_sort |
planck intermediate results iii. the relation between galaxy cluster mass and sunyaev-zeldovich signal |
publishDate |
2013 |
url |
https://research.manchester.ac.uk/en/publications/6d8740c0-9e44-4a6f-a97f-b7c7c920c2bb https://doi.org/Artn A129 10.1051/0004-6361/201219398 |
long_lat |
ENVELOPE(158.317,158.317,-80.867,-80.867) |
geographic |
Hubble South Pole |
geographic_facet |
Hubble South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Ade , P A R , Aghanim , N , Arnaud , M , Ashdown , M , Atrio-Barandela , F , Aumont , J , Baccigalupi , C , Balbi , A , Banday , A J , Barreiro , R B , Bartlett , J G , Battaner , E , Battye , R , Benabed , K , Bernard , J P , Bersanelli , M , Bhatia , R , Bikmaev , I , Bohringer , H , Bonaldi , A , Bond , J R , Borgani , S , Borrill , J , Bouchet , F R , Bourdin , H , Brown , M L , Bucher , M , Burenin , R , Burigana , C , Butler , R C , Cabella , P , Cardoso , J F , Carvalho , P , Chamballu , A , Chiang , L Y , Chon , G , Clements , D L , Colafrancesco , S , Coulais , A , Cuttaia , F , Da Silva , A , Dahle , H , Davis , R J , de Bernardis , P , de Gasperis , G , Delabrouille , J , Democles , J , Desert , F X , Diego , J M , Dolag , K , Dole , H , Donzelli , S , Dore , O , Douspis , M , Dupac , X , Efstathiou , G , Ensslin , T A , Eriksen , H K , Finelli , F , Flores-Cacho , I , Forni , O , Frailis , M , Franceschi , E , Frommert , M , Galeotta , S , Ganga , K , Genova-Santos , R T , Giard , M , Giraud-Heraud , Y , Gonzalez-Nuevo , J , Gorski , K M , Gregorio , A , Gruppuso , A , Hansen , F K , Harrison , D , Hernandez-Monteagudo , C , Herranz , D , Hildebrandt , S R , Hivon , E , Hobson , M , Holmes , W A , Huffenberger , K M , Hurier , G , Jagemann , T , Juvela , M , Keihanen , E , Khamitov , I , Kneissl , R , Knoche , J , Kunz , M , Kurki-Suonio , H , Lagache , G , Lamarre , J M , Lasenby , A , Lawrence , C R , Le Jeune , M , Leach , S , Leonardi , R , Liddle , A , Lilje , P B , Linden-Vornle , M , Lopez-Caniego , M , Luzzi , G , Macias-Perez , J F , Maino , D , Mandolesi , N , Maris , M , Marleau , F , Marshall , D J , Martinez-Gonzalez , E , Masi , S , Matarrese , S , Matthai , F , Mazzotta , P , Meinhold , P R , Melchiorri , A , Melin , J B , Mendes , L , Mitra , S , Miville-Deschenes , M A , Montier , L , Morgante , G , Munshi , D , Natoli , P , Norgaard-Nielsen , H U , Noviello , F , Osborne , S , Pajot , F , Paoletti , D , Partridge , B , Pearson , T J , P |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1051/0004-6361/201219398 |
container_title |
Astronomy & Astrophysics |
container_volume |
550 |
container_start_page |
A129 |
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1782340387000549376 |
spelling |
ftumanchesterpub:oai:pure.atira.dk:publications/6d8740c0-9e44-4a6f-a97f-b7c7c920c2bb 2023-11-12T04:26:24+01:00 Planck intermediate results III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal Ade, P A R Aghanim, N Arnaud, M Ashdown, M Atrio-Barandela, F Aumont, J Baccigalupi, C Balbi, A Banday, A J Barreiro, R B Bartlett, J G Battaner, E Battye, R Benabed, K Bernard, J P Bersanelli, M Bhatia, R Bikmaev, I Bohringer, H Bonaldi, A Bond, J R Borgani, S Borrill, J Bouchet, F R Bourdin, H Brown, M L Bucher, M Burenin, R Burigana, C Butler, R C Cabella, P Cardoso, J F Carvalho, P Chamballu, A Chiang, L Y Chon, G Clements, D L Colafrancesco, S Coulais, A Cuttaia, F Da Silva, A Dahle, H Davis, R J de Bernardis, P de Gasperis, G Delabrouille, J Democles, J Desert, F X Diego, J M Dolag, K Dole, H Donzelli, S Dore, O Douspis, M Dupac, X Efstathiou, G Ensslin, T A Eriksen, H K Finelli, F Flores-Cacho, I Forni, O Frailis, M Franceschi, E Frommert, M Galeotta, S Ganga, K Genova-Santos, R T Giard, M Giraud-Heraud, Y Gonzalez-Nuevo, J Gorski, K M Gregorio, A Gruppuso, A Hansen, F K Harrison, D Hernandez-Monteagudo, C Herranz, D Hildebrandt, S R Hivon, E Hobson, M Holmes, W A Huffenberger, K M Hurier, G Jagemann, T Juvela, M Keihanen, E Khamitov, I Kneissl, R Knoche, J Kunz, M Kurki-Suonio, H Lagache, G Lamarre, J M Lasenby, A Lawrence, C R Le Jeune, M Leach, S Leonardi, R Liddle, A Lilje, P B Linden-Vornle, M Lopez-Caniego, M Luzzi, G Macias-Perez, J F Maino, D Mandolesi, N Maris, M Marleau, F Marshall, D J Martinez-Gonzalez, E Masi, S Matarrese, S Matthai, F Mazzotta, P Meinhold, P R Melchiorri, A Melin, J B Mendes, L Mitra, S Miville-Deschenes, M A Montier, L Morgante, G Munshi, D Natoli, P Norgaard-Nielsen, H U Noviello, F Osborne, S Pajot, F Paoletti, D Partridge, B Pearson, T J Perdereau, O Perrotta, F Piacentini, F Piat, M Pierpaoli, E Piffaretti, R Platania, P Pointecouteau, E Polenta, G Ponthieu, N Popa, L Poutanen, T Pratt, G W Prunet, S Puget, J L Rachen, J P Rebolo, R Reinecke, M Remazeilles, M Renault, C Ricciardi, S Ristorcelli, I Rocha, G Rosset, C Rossetti, M Rubino-Martin, J A Rusholme, B Sandri, M Savini, G Scott, D Starck, J L Stivoli, F Stolyarov, V Sudiwala, R Sunyaev, R Sutton, D Suur-Uski, A S Sygnet, J F Tauber, J A Terenzi, L Toffolatti, L Tomasi, M Tristram, M Valenziano, L Van Tent, B Vielva, P Villa, F Vittorio, N Wandelt, B D Weller, J White, S D M Yvon, D Zacchei, A Zonca, A Collaboration, Planck 2013 https://research.manchester.ac.uk/en/publications/6d8740c0-9e44-4a6f-a97f-b7c7c920c2bb https://doi.org/Artn A129 10.1051/0004-6361/201219398 eng eng info:eu-repo/semantics/closedAccess Ade , P A R , Aghanim , N , Arnaud , M , Ashdown , M , Atrio-Barandela , F , Aumont , J , Baccigalupi , C , Balbi , A , Banday , A J , Barreiro , R B , Bartlett , J G , Battaner , E , Battye , R , Benabed , K , Bernard , J P , Bersanelli , M , Bhatia , R , Bikmaev , I , Bohringer , H , Bonaldi , A , Bond , J R , Borgani , S , Borrill , J , Bouchet , F R , Bourdin , H , Brown , M L , Bucher , M , Burenin , R , Burigana , C , Butler , R C , Cabella , P , Cardoso , J F , Carvalho , P , Chamballu , A , Chiang , L Y , Chon , G , Clements , D L , Colafrancesco , S , Coulais , A , Cuttaia , F , Da Silva , A , Dahle , H , Davis , R J , de Bernardis , P , de Gasperis , G , Delabrouille , J , Democles , J , Desert , F X , Diego , J M , Dolag , K , Dole , H , Donzelli , S , Dore , O , Douspis , M , Dupac , X , Efstathiou , G , Ensslin , T A , Eriksen , H K , Finelli , F , Flores-Cacho , I , Forni , O , Frailis , M , Franceschi , E , Frommert , M , Galeotta , S , Ganga , K , Genova-Santos , R T , Giard , M , Giraud-Heraud , Y , Gonzalez-Nuevo , J , Gorski , K M , Gregorio , A , Gruppuso , A , Hansen , F K , Harrison , D , Hernandez-Monteagudo , C , Herranz , D , Hildebrandt , S R , Hivon , E , Hobson , M , Holmes , W A , Huffenberger , K M , Hurier , G , Jagemann , T , Juvela , M , Keihanen , E , Khamitov , I , Kneissl , R , Knoche , J , Kunz , M , Kurki-Suonio , H , Lagache , G , Lamarre , J M , Lasenby , A , Lawrence , C R , Le Jeune , M , Leach , S , Leonardi , R , Liddle , A , Lilje , P B , Linden-Vornle , M , Lopez-Caniego , M , Luzzi , G , Macias-Perez , J F , Maino , D , Mandolesi , N , Maris , M , Marleau , F , Marshall , D J , Martinez-Gonzalez , E , Masi , S , Matarrese , S , Matthai , F , Mazzotta , P , Meinhold , P R , Melchiorri , A , Melin , J B , Mendes , L , Mitra , S , Miville-Deschenes , M A , Montier , L , Morgante , G , Munshi , D , Natoli , P , Norgaard-Nielsen , H U , Noviello , F , Osborne , S , Pajot , F , Paoletti , D , Partridge , B , Pearson , T J , P x-rays: galaxies: clusters galaxies: clusters: intracluster medium galaxies: clusters: general cosmology: observations weak lensing analysis pre-launch status hubble-space-telescope south-pole telescope x-ray-properties scaling relations xmm-newton dark-matter representative sample parameter-estimation article 2013 ftumanchesterpub https://doi.org/10.1051/0004-6361/201219398 2023-10-30T09:14:27Z We examine the relation between the galaxy cluster mass M and Sunyaev-Zeldovich (SZ) effect signal D-A(2) Y-500 for a sample of 19 objects for which weak lensing (WL) mass measurements obtained from Subaru Telescope data are available in the literature. Hydrostatic X-ray masses are derived from XMM-Newton archive data, and the SZ effect signal is measured from Planck all-sky survey data. We find an M-WL-D-A(2) Y-500 relation that is consistent in slope and normalisation with previous determinations using weak lensing masses; however, there is a normalisation offset with respect to previous measures based on hydrostatic X-ray mass-proxy relations. We verify that our SZ effect measurements are in excellent agreement with previous determinations from Planck data. For the present sample, the hydrostatic X-ray masses at R-500 are on average similar to 20 percent larger than the corresponding weak lensing masses, which is contrary to expectations. We show that the mass discrepancy is driven by a difference in mass concentration as measured by the two methods and, for the present sample, that the mass discrepancy and difference in mass concentration are especially large for disturbed systems. The mass discrepancy is also linked to the offset in centres used by the X-ray and weak lensing analyses, which again is most important in disturbed systems. We outline several approaches that are needed to help achieve convergence in cluster mass measurement with X-ray and weak lensing observations. Article in Journal/Newspaper South pole The University of Manchester: Research Explorer Hubble ENVELOPE(158.317,158.317,-80.867,-80.867) South Pole Astronomy & Astrophysics 550 A129 |