Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data
Paper producido por "The LIGO Scientific Collaboration and the Virgo Collaboration". (En el registro se mencionan solo algunos autores de las decenas de personas que participan).
| Main Authors: | , , , , |
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| Format: | publishedVersion |
| Language: | eng |
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2021
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| Online Access: | http://hdl.handle.net/11086/20474 https://doi.org/10.1103/PhysRevLett.113.231101 |
| _version_ | 1801211259239006208 |
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| author | LIGO Scientific Collaboration Virgo Collaboration Aasi, J. Maglione, C. Quiroga, G. |
| author_facet | LIGO Scientific Collaboration Virgo Collaboration Aasi, J. Maglione, C. Quiroga, G. |
| author_sort | LIGO Scientific Collaboration |
| collection | Repositorio Digital Universitario |
| description | Paper producido por "The LIGO Scientific Collaboration and the Virgo Collaboration". (En el registro se mencionan solo algunos autores de las decenas de personas que participan). |
| format | publishedVersion |
| id | rdu-unc.20474 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2021 |
| record_format | dspace |
| spelling | rdu-unc.204742022-10-13T11:06:21Z Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data LIGO Scientific Collaboration Virgo Collaboration Aasi, J. Maglione, C. Quiroga, G. Gravitational-Wave LIGO data Virgo data Stochastic background Paper producido por "The LIGO Scientific Collaboration and the Virgo Collaboration". (En el registro se mencionan solo algunos autores de las decenas de personas que participan). publishedVersion Fil: Aasi, J. LIGO. California Institute of Technology; Estados Unidos de América. Fil: Maglione, C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Maglione, C. Argentinian Gravitational Wave Group; Argentina. Fil: Quiroga, G. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Quiroga, G. Argentinian Gravitational Wave Group; Argentina. Gravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughout the history of the Universe that is unavailable through standard electromagnetic observations, making its study of fundamental importance to understanding the evolution of the Universe. We carry out a search for the stochastic background with the latest data from the LIGO and Virgo detectors. Consistent with predictions from most stochastic gravitational-wave background models, the data display no evidence of a stochastic gravitational-wave signal. Assuming a gravitational-wave spectrum of ΩGWðfÞ ¼ Ωαðf=frefÞα, we place 95% confidence level upper limits on the energy density of the background in each of four frequency bands spanning 41.5–1726 Hz. In the frequency band of 41.5–169.25 Hz for a spectral index of α¼ 0, we constrain the energy density of the stochastic background to be ΩGWðfÞ <5.6 × 10−6. For the 600–1000 Hz band, ΩGWðfÞ <0.14ðf=900 HzÞ3, a factor of 2.5 lower than the best previously reported upper limits. We find ΩGWðfÞ <1.8 × 10−4 using a spectral index of zero for 170–600 Hz and ΩGWðfÞ < 1.0ðf=1300 HzÞ3 for 1000–1726 Hz, bands in which no previous direct limits have been placed. The limits in these four bands are the lowest direct measurements to date on the stochastic background. We discuss the implications of these results in light of the recent claim by the BICEP2 experiment of the possible evidence for inflationary gravitational waves. http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.231101 publishedVersion Fil: Aasi, J. LIGO. California Institute of Technology; Estados Unidos de América. Fil: Maglione, C. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Maglione, C. Argentinian Gravitational Wave Group; Argentina. Fil: Quiroga, G. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Fil: Quiroga, G. Argentinian Gravitational Wave Group; Argentina. Física de Partículas y Campos 2021-09-27T17:03:21Z 2021-09-27T17:03:21Z 2014 article Aasi, J. et al. (2014). Improved Upper Limits on the Stochastic Gravitational-Wave Background from 2009-2010 LIGO and Virgo Data. Physical Review Letters 113 (23) DOI:10.1103/PhysRevLett.113.231101 http://hdl.handle.net/11086/20474 https://doi.org/10.1103/PhysRevLett.113.231101 eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Impreso; Electrónico y/o Digital issn: 1079-7114 |
| spellingShingle | Gravitational-Wave LIGO data Virgo data Stochastic background LIGO Scientific Collaboration Virgo Collaboration Aasi, J. Maglione, C. Quiroga, G. Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data |
| title | Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data |
| title_full | Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data |
| title_fullStr | Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data |
| title_full_unstemmed | Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data |
| title_short | Improved upper limits on the stochastic gravitational-wave background from 2009-2010 LIGO and Virgo data |
| title_sort | improved upper limits on the stochastic gravitational wave background from 2009 2010 ligo and virgo data |
| topic | Gravitational-Wave LIGO data Virgo data Stochastic background |
| url | http://hdl.handle.net/11086/20474 https://doi.org/10.1103/PhysRevLett.113.231101 |
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