Cosmology: Probing the Early Universe - Revision history

Jan.harms at 09:57, 13 September 2020

2020-09-13T09:57:10Z

Jan.harms at 09:56, 13 September 2020

2020-09-13T09:56:44Z

Jan.harms at 09:56, 13 September 2020

2020-09-13T09:56:17Z

Jan.harms at 09:55, 13 September 2020

2020-09-13T09:55:45Z

Jan.harms at 09:48, 13 September 2020

2020-09-13T09:48:25Z

Jan.harms at 15:30, 5 April 2020

2020-04-05T15:30:41Z

Jan.harms: Created page with "https://arxiv.org/abs/1903.09260 Cosmology science case of third-generation GW detectors (2019)"

2020-04-05T15:29:38Z

Created page with "https://arxiv.org/abs/1903.09260 Cosmology science case of third-generation GW detectors (2019)"

New page

[[https://arxiv.org/abs/1903.09260 Cosmology science case of third-generation GW detectors (2019)]]

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-[[File:BigBang_JH.png|Black-hole detection horizon|thumb|600px]]
+[[File:BigBang_JH.png|Black-hole detection horizon|thumb|900px]]
 Recent assessments of the science case for third-generation GW detectors like Einstein Telescope, and Cosmic Explorer have demonstrated the tremendous impact GW observations are expected to have on cosmology in the future [[https://arxiv.org/abs/1903.09260 Sathyaprakash et al (2019)]] [[http://dx.doi.org/10.1088/1475-7516/2020/03/050 Maggiore et al (2020)]]. This includes the study of compact-binary populations throughout the history of the universe, the exploration of dark matter and energy, and studies of the expansion of the universe using GW signals to construct a new cosmic distance ladder. In addition, certain forms of primordial GW backgrounds might become observable with third-generation detectors.
 Primordial GW backgrounds will be extremely weak and need to be dug out of instrument noise and astrophysical GW foregrounds. We combined one of the proposed methods, a noise projection based on a geometrical interpretation of the matched-filter parameter estimation, to reduce an astrophysical foreground with a state-of-the-art simulation and Bayesian analysis software Bilby [[https://doi.org/10.1103/PhysRevD.102.063009 Sharma / Harms (2020)]]. It was found in this study that the subtraction of high-SNR signals would leave significant residuals in the data, but these can be sufficiently reduced by the noise-projection method. This study needs to be repeated for lower-SNR signals.

@@ Line 1: / Line 1: @@
-[[File:BigBang_JH.jpg|Black-hole detection horizon|thumb|600px]]
+[[File:BigBang_JH.png|Black-hole detection horizon|thumb|600px]]
 Recent assessments of the science case for third-generation GW detectors like Einstein Telescope, and Cosmic Explorer have demonstrated the tremendous impact GW observations are expected to have on cosmology in the future [[https://arxiv.org/abs/1903.09260 Sathyaprakash et al (2019)]] [[http://dx.doi.org/10.1088/1475-7516/2020/03/050 Maggiore et al (2020)]]. This includes the study of compact-binary populations throughout the history of the universe, the exploration of dark matter and energy, and studies of the expansion of the universe using GW signals to construct a new cosmic distance ladder. In addition, certain forms of primordial GW backgrounds might become observable with third-generation detectors.
 Primordial GW backgrounds will be extremely weak and need to be dug out of instrument noise and astrophysical GW foregrounds. We combined one of the proposed methods, a noise projection based on a geometrical interpretation of the matched-filter parameter estimation, to reduce an astrophysical foreground with a state-of-the-art simulation and Bayesian analysis software Bilby [[https://doi.org/10.1103/PhysRevD.102.063009 Sharma / Harms (2020)]]. It was found in this study that the subtraction of high-SNR signals would leave significant residuals in the data, but these can be sufficiently reduced by the noise-projection method. This study needs to be repeated for lower-SNR signals.

@@ Line 1: / Line 1: @@
-[[File:ET_infra_nice.jpg|Einstein Telescope (artistic conception)|thumb|600px]]
+[[File:BigBang_JH.jpg|Black-hole detection horizon|thumb|600px]]
 Recent assessments of the science case for third-generation GW detectors like Einstein Telescope, and Cosmic Explorer have demonstrated the tremendous impact GW observations are expected to have on cosmology in the future [[https://arxiv.org/abs/1903.09260 Sathyaprakash et al (2019)]] [[http://dx.doi.org/10.1088/1475-7516/2020/03/050 Maggiore et al (2020)]]. This includes the study of compact-binary populations throughout the history of the universe, the exploration of dark matter and energy, and studies of the expansion of the universe using GW signals to construct a new cosmic distance ladder. In addition, certain forms of primordial GW backgrounds might become observable with third-generation detectors.
 Primordial GW backgrounds will be extremely weak and need to be dug out of instrument noise and astrophysical GW foregrounds. We combined one of the proposed methods, a noise projection based on a geometrical interpretation of the matched-filter parameter estimation, to reduce an astrophysical foreground with a state-of-the-art simulation and Bayesian analysis software Bilby [[https://doi.org/10.1103/PhysRevD.102.063009 Sharma / Harms (2020)]]. It was found in this study that the subtraction of high-SNR signals would leave significant residuals in the data, but these can be sufficiently reduced by the noise-projection method. This study needs to be repeated for lower-SNR signals.

← Older revision		Revision as of 09:55, 13 September 2020
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		+	[[File:ET_infra_nice.jpg\|Einstein Telescope (artistic conception)\|thumb\|600px]]
		+
	Recent assessments of the science case for third-generation GW detectors like Einstein Telescope, and Cosmic Explorer have demonstrated the tremendous impact GW observations are expected to have on cosmology in the future [[https://arxiv.org/abs/1903.09260 Sathyaprakash et al (2019)]] [[http://dx.doi.org/10.1088/1475-7516/2020/03/050 Maggiore et al (2020)]]. This includes the study of compact-binary populations throughout the history of the universe, the exploration of dark matter and energy, and studies of the expansion of the universe using GW signals to construct a new cosmic distance ladder. In addition, certain forms of primordial GW backgrounds might become observable with third-generation detectors.		Recent assessments of the science case for third-generation GW detectors like Einstein Telescope, and Cosmic Explorer have demonstrated the tremendous impact GW observations are expected to have on cosmology in the future [[https://arxiv.org/abs/1903.09260 Sathyaprakash et al (2019)]] [[http://dx.doi.org/10.1088/1475-7516/2020/03/050 Maggiore et al (2020)]]. This includes the study of compact-binary populations throughout the history of the universe, the exploration of dark matter and energy, and studies of the expansion of the universe using GW signals to construct a new cosmic distance ladder. In addition, certain forms of primordial GW backgrounds might become observable with third-generation detectors.

	Primordial GW backgrounds will be extremely weak and need to be dug out of instrument noise and astrophysical GW foregrounds. We combined one of the proposed methods, a noise projection based on a geometrical interpretation of the matched-filter parameter estimation, to reduce an astrophysical foreground with a state-of-the-art simulation and Bayesian analysis software Bilby [[https://doi.org/10.1103/PhysRevD.102.063009 Sharma / Harms (2020)]]. It was found in this study that the subtraction of high-SNR signals would leave significant residuals in the data, but these can be sufficiently reduced by the noise-projection method. This study needs to be repeated for lower-SNR signals.		Primordial GW backgrounds will be extremely weak and need to be dug out of instrument noise and astrophysical GW foregrounds. We combined one of the proposed methods, a noise projection based on a geometrical interpretation of the matched-filter parameter estimation, to reduce an astrophysical foreground with a state-of-the-art simulation and Bayesian analysis software Bilby [[https://doi.org/10.1103/PhysRevD.102.063009 Sharma / Harms (2020)]]. It was found in this study that the subtraction of high-SNR signals would leave significant residuals in the data, but these can be sufficiently reduced by the noise-projection method. This study needs to be repeated for lower-SNR signals.

← Older revision		Revision as of 09:48, 13 September 2020
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−	[[https://arxiv.org/abs/1903.09260 ~~Astro~~-2020 ~~White Paper on cosmology~~ and the ~~early~~ universe with third-generation GW ~~detectors~~ (~~2019~~)]]	+	Recent assessments of the science case for third-generation GW detectors like Einstein Telescope, and Cosmic Explorer have demonstrated the tremendous impact GW observations are expected to have on cosmology in the future [[https://arxiv.org/abs/1903.09260 Sathyaprakash et al (2019)]] [[http://dx.doi.org/10.1088/1475-7516/2020/03/050 Maggiore et al (2020)]]. This includes the study of compact-binary populations throughout the history of the universe, the exploration of dark matter and energy, and studies of the expansion of the universe using GW signals to construct a new cosmic distance ladder. In addition, certain forms of primordial GW backgrounds might become observable with third-generation detectors.
		+
		+	Primordial GW backgrounds will be extremely weak and need to be dug out of instrument noise and astrophysical GW foregrounds. We combined one of the proposed methods, a noise projection based on a geometrical interpretation of the matched-filter parameter estimation, to reduce an astrophysical foreground with a state-of-the-art simulation and Bayesian analysis software Bilby [[https://doi.org/10.1103/PhysRevD.102.063009 Sharma / Harms (2020)]]. It was found in this study that the subtraction of high-SNR signals would leave significant residuals in the data, but these can be sufficiently reduced by the noise-projection method. This study needs to be repeated for lower-SNR signals.

← Older revision		Revision as of 15:30, 5 April 2020
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−	[[https://arxiv.org/abs/1903.09260 ~~Cosmology science case of~~ third-generation GW detectors (2019)]]	+	[[https://arxiv.org/abs/1903.09260 Astro-2020 White Paper on cosmology and the early universe with third-generation GW detectors (2019)]]