Galaxy Cluster Supernovae at z 0.5: Dissecting the Hubble Diagram

Saul Perlmutter; Chris Lidman; Isobel Hook; Eli Rykoff; Tony Spadafora; Nao Suzuki; Joshua Meyers; David Rubin; Kyle Barbary; Greg Aldering; Jakob Nordin

Galaxy Cluster Supernovae at z 0.5: Dissecting the Hubble Diagram

Saul Perlmutter, Chris Lidman, Isobel Hook, Eli Rykoff, Tony Spadafora, Nao Suzuki, Joshua Meyers, David Rubin, Kyle Barbary, Greg Aldering, Jakob Nordin

Research School of Astronomy & Astrophysics

Research output: Other contribution

Abstract

Large new surveys using WFC3 and ACS on HST will enable the construction of a Type Ia supernova Hubble diagram free from the deleterious and uncertain effects of host-galaxy dust absorption. We propose Gemini-N Target-of-Opportunity long-slit spectroscopy to measure SN features and characterize host environments in conjunction with an approved HST cluster SN search at z 0.5. When combined with high-redshift cluster SNe, we will for the first time be able to create a dust-free Hubble diagram. Furthermore, by comparing elliptical and non-elliptical hosted subsamples we will quantify the cosmology measurement systematics present in existing mixed-host SN samples. In addition to targeting cluster-hosted SNe, we will have the opportunity to observe highly magnified background SNe Ia that can be used as independent probes of cosmology as well as testing lensing mass maps of the foreground clusters.

Original language	English
Publication status	Published - 1 Feb 2012

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https://ui.adsabs.harvard.edu/abs/2012noao.prop..308P

Cite this

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title = "Galaxy Cluster Supernovae at z 0.5: Dissecting the Hubble Diagram",

abstract = "Large new surveys using WFC3 and ACS on HST will enable the construction of a Type Ia supernova Hubble diagram free from the deleterious and uncertain effects of host-galaxy dust absorption. We propose Gemini-N Target-of-Opportunity long-slit spectroscopy to measure SN features and characterize host environments in conjunction with an approved HST cluster SN search at z 0.5. When combined with high-redshift cluster SNe, we will for the first time be able to create a dust-free Hubble diagram. Furthermore, by comparing elliptical and non-elliptical hosted subsamples we will quantify the cosmology measurement systematics present in existing mixed-host SN samples. In addition to targeting cluster-hosted SNe, we will have the opportunity to observe highly magnified background SNe Ia that can be used as independent probes of cosmology as well as testing lensing mass maps of the foreground clusters.",

author = "Saul Perlmutter and Chris Lidman and Isobel Hook and Eli Rykoff and Tony Spadafora and Nao Suzuki and Joshua Meyers and David Rubin and Kyle Barbary and Greg Aldering and Jakob Nordin",

year = "2012",

month = feb,

day = "1",

language = "English",

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TY - GEN

T1 - Galaxy Cluster Supernovae at z 0.5: Dissecting the Hubble Diagram

AU - Perlmutter, Saul

AU - Lidman, Chris

AU - Hook, Isobel

AU - Rykoff, Eli

AU - Spadafora, Tony

AU - Suzuki, Nao

AU - Meyers, Joshua

AU - Rubin, David

AU - Barbary, Kyle

AU - Aldering, Greg

AU - Nordin, Jakob

PY - 2012/2/1

Y1 - 2012/2/1

N2 - Large new surveys using WFC3 and ACS on HST will enable the construction of a Type Ia supernova Hubble diagram free from the deleterious and uncertain effects of host-galaxy dust absorption. We propose Gemini-N Target-of-Opportunity long-slit spectroscopy to measure SN features and characterize host environments in conjunction with an approved HST cluster SN search at z 0.5. When combined with high-redshift cluster SNe, we will for the first time be able to create a dust-free Hubble diagram. Furthermore, by comparing elliptical and non-elliptical hosted subsamples we will quantify the cosmology measurement systematics present in existing mixed-host SN samples. In addition to targeting cluster-hosted SNe, we will have the opportunity to observe highly magnified background SNe Ia that can be used as independent probes of cosmology as well as testing lensing mass maps of the foreground clusters.

AB - Large new surveys using WFC3 and ACS on HST will enable the construction of a Type Ia supernova Hubble diagram free from the deleterious and uncertain effects of host-galaxy dust absorption. We propose Gemini-N Target-of-Opportunity long-slit spectroscopy to measure SN features and characterize host environments in conjunction with an approved HST cluster SN search at z 0.5. When combined with high-redshift cluster SNe, we will for the first time be able to create a dust-free Hubble diagram. Furthermore, by comparing elliptical and non-elliptical hosted subsamples we will quantify the cosmology measurement systematics present in existing mixed-host SN samples. In addition to targeting cluster-hosted SNe, we will have the opportunity to observe highly magnified background SNe Ia that can be used as independent probes of cosmology as well as testing lensing mass maps of the foreground clusters.

M3 - Other contribution

ER -

Galaxy Cluster Supernovae at z 0.5: Dissecting the Hubble Diagram

Abstract

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