LISA Sensitivity to Gravitational Waves from Sound Waves
Gravitational waves (GWs) produced by sound waves in the primordial plasma during a strong first-order phase transition in the early Universe are going to be a main target of the upcoming Laser Interferometer Space Antenna (LISA) experiment. In this short note, I draw a global picture of LISA’s expe...
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doaj-f6f57bd8e6ea462b8dd048c8897a76e92020-11-25T03:10:55ZengMDPI AGSymmetry2073-89942020-09-01121477147710.3390/sym12091477LISA Sensitivity to Gravitational Waves from Sound WavesKai Schmitz0Theoretical Physics Department, CERN, 1211 Geneva 23, SwitzerlandGravitational waves (GWs) produced by sound waves in the primordial plasma during a strong first-order phase transition in the early Universe are going to be a main target of the upcoming Laser Interferometer Space Antenna (LISA) experiment. In this short note, I draw a global picture of LISA’s expected sensitivity to this type of GW signal, based on the concept of peak-integrated sensitivity curves (PISCs) recently introduced in two previous papers. In particular, I use LISA’s PISC to perform a systematic comparison of several thousands of benchmark points in ten different particle physics models in a compact fashion. The presented analysis (i) retains the complete information on the optimal signal-to-noise ratio, (ii) allows for different power-law indices describing the spectral shape of the signal, (iii) accounts for galactic confusion noise from compact binaries, and (iv) exhibits the dependence of the expected sensitivity on the collected amount of data. An important outcome of this analysis is that, for the considered set of models, galactic confusion noise typically reduces the number of observable scenarios by roughly a factor of two, more or less independent of the observing time. The numerical results presented in this paper are also available in the online repository Zenodo.https://www.mdpi.com/2073-8994/12/9/1477Cosmological phase transitionsprimordial gravitational wavessensitivity curves |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kai Schmitz |
spellingShingle |
Kai Schmitz LISA Sensitivity to Gravitational Waves from Sound Waves Symmetry Cosmological phase transitions primordial gravitational waves sensitivity curves |
author_facet |
Kai Schmitz |
author_sort |
Kai Schmitz |
title |
LISA Sensitivity to Gravitational Waves from Sound Waves |
title_short |
LISA Sensitivity to Gravitational Waves from Sound Waves |
title_full |
LISA Sensitivity to Gravitational Waves from Sound Waves |
title_fullStr |
LISA Sensitivity to Gravitational Waves from Sound Waves |
title_full_unstemmed |
LISA Sensitivity to Gravitational Waves from Sound Waves |
title_sort |
lisa sensitivity to gravitational waves from sound waves |
publisher |
MDPI AG |
series |
Symmetry |
issn |
2073-8994 |
publishDate |
2020-09-01 |
description |
Gravitational waves (GWs) produced by sound waves in the primordial plasma during a strong first-order phase transition in the early Universe are going to be a main target of the upcoming Laser Interferometer Space Antenna (LISA) experiment. In this short note, I draw a global picture of LISA’s expected sensitivity to this type of GW signal, based on the concept of peak-integrated sensitivity curves (PISCs) recently introduced in two previous papers. In particular, I use LISA’s PISC to perform a systematic comparison of several thousands of benchmark points in ten different particle physics models in a compact fashion. The presented analysis (i) retains the complete information on the optimal signal-to-noise ratio, (ii) allows for different power-law indices describing the spectral shape of the signal, (iii) accounts for galactic confusion noise from compact binaries, and (iv) exhibits the dependence of the expected sensitivity on the collected amount of data. An important outcome of this analysis is that, for the considered set of models, galactic confusion noise typically reduces the number of observable scenarios by roughly a factor of two, more or less independent of the observing time. The numerical results presented in this paper are also available in the online repository Zenodo. |
topic |
Cosmological phase transitions primordial gravitational waves sensitivity curves |
url |
https://www.mdpi.com/2073-8994/12/9/1477 |
work_keys_str_mv |
AT kaischmitz lisasensitivitytogravitationalwavesfromsoundwaves |
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