The cluster lensing and supernova survey with hubble: An overview

Marc Postman; Dan Coe; Narciso Benítez; Larry Bradley; Tom Broadhurst; Megan Donahue; Holland Ford; Or Graur; Genevieve Graves; Stephanie Jouvel; Anton Koekemoer; Doron Lemze; Elinor Medezinski; Alberto Molino; Leonidas Moustakas; Sara Ogaz; Adam Riess; Steve Rodney; Piero Rosati; Keiichi Umetsu; Wei Zheng; Adi Zitrin; Matthias Bartelmann; Rychard Bouwens; Nicole Czakon; Sunil Golwala; Ole Host; Leopoldo Infante; Saurabh Jha; Yolanda Jimenez-Teja; Daniel Kelson; Ofer Lahav; Ruth Lazkoz; Dani Maoz; Curtis McCully; Peter Melchior; Massimo Meneghetti; Julian Merten; John Moustakas; Mario Nonino; Brandon Patel; Enikö Regös; Jack Sayers; Stella Seitz; Arjen Van Der Wel

doi:10.1088/0067-0049/199/2/25

The cluster lensing and supernova survey with hubble: An overview

Marc Postman, Dan Coe, Narciso Benítez, Larry Bradley, Tom Broadhurst, Megan Donahue, Holland Ford, Or Graur, Genevieve Graves, Stephanie Jouvel, Anton Koekemoer, Doron Lemze, Elinor Medezinski, Alberto Molino, Leonidas Moustakas, Sara Ogaz, Adam Riess, Steve Rodney, Piero Rosati, Keiichi UmetsuWei Zheng, Adi Zitrin, Matthias Bartelmann, Rychard Bouwens, Nicole Czakon, Sunil Golwala, Ole Host, Leopoldo Infante, Saurabh Jha, Yolanda Jimenez-Teja, Daniel Kelson, Ofer Lahav, Ruth Lazkoz, Dani Maoz, Curtis McCully, Peter Melchior, Massimo Meneghetti, Julian Merten, John Moustakas, Mario Nonino, Brandon Patel, Enikö Regös, Jack Sayers, Stella Seitz, Arjen Van Der Wel

Research output: Contribution to journal › Review article › peer-review

689 Scopus citations

Abstract

The Cluster Lensing And Supernova survey with Hubble (CLASH) is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions. The survey, described in detail in this paper, will definitively establish the degree of concentration of dark matter in the cluster cores, a key prediction of structure formation models. The CLASH cluster sample is larger and less biased than current samples of space-based imaging studies of clusters to similar depth, as we have minimized lensing-based selection that favors systems with overly dense cores. Specifically, 20 CLASH clusters are solely X-ray selected. The X-ray-selected clusters are massive (kT > 5 keV) and, in most cases, dynamically relaxed. Five additional clusters are included for their lensing strength (θ _Ein > 35″ at z _s = 2) to optimize the likelihood of finding highly magnified high-z (z > 7) galaxies. A total of 16 broadband filters, spanning the near-UV to near-IR, are employed for each 20-orbit campaign on each cluster. These data are used to measure precise (σ _z 0.02(1 + z)) photometric redshifts for newly discovered arcs. Observations of each cluster are spread over eight epochs to enable a search for Type Ia supernovae at z > 1 to improve constraints on the time dependence of the dark energy equation of state and the evolution of supernovae. We present newly re-derived X-ray luminosities, temperatures, and Fe abundances for the CLASH clusters as well as a representative source list for MACS1149.6+2223 (z = 0.544).

Original language	English (US)
Article number	25
Journal	Astrophysical Journal, Supplement Series
Volume	199
Issue number	2
DOIs	https://doi.org/10.1088/0067-0049/199/2/25
State	Published - Apr 2012
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Galaxy: evolution
Galaxy: formation
dark energy
dark matter
gravitational lensing: strong
gravitational lensing: weak

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10.1088/0067-0049/199/2/25

Cite this

Postman, M., Coe, D., Benítez, N., Bradley, L., Broadhurst, T., Donahue, M., Ford, H., Graur, O., Graves, G., Jouvel, S., Koekemoer, A., Lemze, D., Medezinski, E., Molino, A., Moustakas, L., Ogaz, S., Riess, A., Rodney, S., Rosati, P., ... Van Der Wel, A. (2012). The cluster lensing and supernova survey with hubble: An overview. Astrophysical Journal, Supplement Series, 199(2), Article 25. https://doi.org/10.1088/0067-0049/199/2/25

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title = "The cluster lensing and supernova survey with hubble: An overview",

abstract = "The Cluster Lensing And Supernova survey with Hubble (CLASH) is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions. The survey, described in detail in this paper, will definitively establish the degree of concentration of dark matter in the cluster cores, a key prediction of structure formation models. The CLASH cluster sample is larger and less biased than current samples of space-based imaging studies of clusters to similar depth, as we have minimized lensing-based selection that favors systems with overly dense cores. Specifically, 20 CLASH clusters are solely X-ray selected. The X-ray-selected clusters are massive (kT > 5 keV) and, in most cases, dynamically relaxed. Five additional clusters are included for their lensing strength (θ Ein > 35″ at z s = 2) to optimize the likelihood of finding highly magnified high-z (z > 7) galaxies. A total of 16 broadband filters, spanning the near-UV to near-IR, are employed for each 20-orbit campaign on each cluster. These data are used to measure precise (σ z 0.02(1 + z)) photometric redshifts for newly discovered arcs. Observations of each cluster are spread over eight epochs to enable a search for Type Ia supernovae at z > 1 to improve constraints on the time dependence of the dark energy equation of state and the evolution of supernovae. We present newly re-derived X-ray luminosities, temperatures, and Fe abundances for the CLASH clusters as well as a representative source list for MACS1149.6+2223 (z = 0.544).",

keywords = "Galaxy: evolution, Galaxy: formation, dark energy, dark matter, gravitational lensing: strong, gravitational lensing: weak",

author = "Marc Postman and Dan Coe and Narciso Ben{\'i}tez and Larry Bradley and Tom Broadhurst and Megan Donahue and Holland Ford and Or Graur and Genevieve Graves and Stephanie Jouvel and Anton Koekemoer and Doron Lemze and Elinor Medezinski and Alberto Molino and Leonidas Moustakas and Sara Ogaz and Adam Riess and Steve Rodney and Piero Rosati and Keiichi Umetsu and Wei Zheng and Adi Zitrin and Matthias Bartelmann and Rychard Bouwens and Nicole Czakon and Sunil Golwala and Ole Host and Leopoldo Infante and Saurabh Jha and Yolanda Jimenez-Teja and Daniel Kelson and Ofer Lahav and Ruth Lazkoz and Dani Maoz and Curtis McCully and Peter Melchior and Massimo Meneghetti and Julian Merten and John Moustakas and Mario Nonino and Brandon Patel and Enik{\"o} Reg{\"o}s and Jack Sayers and Stella Seitz and {Van Der Wel}, Arjen",

year = "2012",

month = apr,

doi = "10.1088/0067-0049/199/2/25",

language = "English (US)",

volume = "199",

journal = "Astrophysical Journal, Supplement Series",

issn = "0067-0049",

publisher = "American Astronomical Society",

number = "2",

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Postman, M, Coe, D, Benítez, N, Bradley, L, Broadhurst, T, Donahue, M, Ford, H, Graur, O, Graves, G, Jouvel, S, Koekemoer, A, Lemze, D, Medezinski, E, Molino, A, Moustakas, L, Ogaz, S, Riess, A, Rodney, S, Rosati, P, Umetsu, K, Zheng, W, Zitrin, A, Bartelmann, M, Bouwens, R, Czakon, N, Golwala, S, Host, O, Infante, L, Jha, S, Jimenez-Teja, Y, Kelson, D, Lahav, O, Lazkoz, R, Maoz, D, McCully, C, Melchior, P, Meneghetti, M, Merten, J, Moustakas, J, Nonino, M, Patel, B, Regös, E, Sayers, J, Seitz, S & Van Der Wel, A 2012, 'The cluster lensing and supernova survey with hubble: An overview', Astrophysical Journal, Supplement Series, vol. 199, no. 2, 25. https://doi.org/10.1088/0067-0049/199/2/25

TY - JOUR

T1 - The cluster lensing and supernova survey with hubble

T2 - An overview

AU - Postman, Marc

AU - Coe, Dan

AU - Benítez, Narciso

AU - Bradley, Larry

AU - Broadhurst, Tom

AU - Donahue, Megan

AU - Ford, Holland

AU - Graur, Or

AU - Graves, Genevieve

AU - Jouvel, Stephanie

AU - Koekemoer, Anton

AU - Lemze, Doron

AU - Medezinski, Elinor

AU - Molino, Alberto

AU - Moustakas, Leonidas

AU - Ogaz, Sara

AU - Riess, Adam

AU - Rodney, Steve

AU - Rosati, Piero

AU - Umetsu, Keiichi

AU - Zheng, Wei

AU - Zitrin, Adi

AU - Bartelmann, Matthias

AU - Bouwens, Rychard

AU - Czakon, Nicole

AU - Golwala, Sunil

AU - Host, Ole

AU - Infante, Leopoldo

AU - Jha, Saurabh

AU - Jimenez-Teja, Yolanda

AU - Kelson, Daniel

AU - Lahav, Ofer

AU - Lazkoz, Ruth

AU - Maoz, Dani

AU - McCully, Curtis

AU - Melchior, Peter

AU - Meneghetti, Massimo

AU - Merten, Julian

AU - Moustakas, John

AU - Nonino, Mario

AU - Patel, Brandon

AU - Regös, Enikö

AU - Sayers, Jack

AU - Seitz, Stella

AU - Van Der Wel, Arjen

PY - 2012/4

Y1 - 2012/4

N2 - The Cluster Lensing And Supernova survey with Hubble (CLASH) is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions. The survey, described in detail in this paper, will definitively establish the degree of concentration of dark matter in the cluster cores, a key prediction of structure formation models. The CLASH cluster sample is larger and less biased than current samples of space-based imaging studies of clusters to similar depth, as we have minimized lensing-based selection that favors systems with overly dense cores. Specifically, 20 CLASH clusters are solely X-ray selected. The X-ray-selected clusters are massive (kT > 5 keV) and, in most cases, dynamically relaxed. Five additional clusters are included for their lensing strength (θ Ein > 35″ at z s = 2) to optimize the likelihood of finding highly magnified high-z (z > 7) galaxies. A total of 16 broadband filters, spanning the near-UV to near-IR, are employed for each 20-orbit campaign on each cluster. These data are used to measure precise (σ z 0.02(1 + z)) photometric redshifts for newly discovered arcs. Observations of each cluster are spread over eight epochs to enable a search for Type Ia supernovae at z > 1 to improve constraints on the time dependence of the dark energy equation of state and the evolution of supernovae. We present newly re-derived X-ray luminosities, temperatures, and Fe abundances for the CLASH clusters as well as a representative source list for MACS1149.6+2223 (z = 0.544).

AB - The Cluster Lensing And Supernova survey with Hubble (CLASH) is a 524-orbit Multi-Cycle Treasury Program to use the gravitational lensing properties of 25 galaxy clusters to accurately constrain their mass distributions. The survey, described in detail in this paper, will definitively establish the degree of concentration of dark matter in the cluster cores, a key prediction of structure formation models. The CLASH cluster sample is larger and less biased than current samples of space-based imaging studies of clusters to similar depth, as we have minimized lensing-based selection that favors systems with overly dense cores. Specifically, 20 CLASH clusters are solely X-ray selected. The X-ray-selected clusters are massive (kT > 5 keV) and, in most cases, dynamically relaxed. Five additional clusters are included for their lensing strength (θ Ein > 35″ at z s = 2) to optimize the likelihood of finding highly magnified high-z (z > 7) galaxies. A total of 16 broadband filters, spanning the near-UV to near-IR, are employed for each 20-orbit campaign on each cluster. These data are used to measure precise (σ z 0.02(1 + z)) photometric redshifts for newly discovered arcs. Observations of each cluster are spread over eight epochs to enable a search for Type Ia supernovae at z > 1 to improve constraints on the time dependence of the dark energy equation of state and the evolution of supernovae. We present newly re-derived X-ray luminosities, temperatures, and Fe abundances for the CLASH clusters as well as a representative source list for MACS1149.6+2223 (z = 0.544).

KW - Galaxy: evolution

KW - Galaxy: formation

KW - dark energy

KW - dark matter

KW - gravitational lensing: strong

KW - gravitational lensing: weak

UR - http://www.scopus.com/inward/record.url?scp=84858720187&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858720187&partnerID=8YFLogxK

U2 - 10.1088/0067-0049/199/2/25

DO - 10.1088/0067-0049/199/2/25

M3 - Review article

AN - SCOPUS:84858720187

SN - 0067-0049

VL - 199

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 2

M1 - 25

ER -

The cluster lensing and supernova survey with hubble: An overview

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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