LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS
The Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo advanced ground-based gravitational-wave detectors will begin collecting science data in 2015. With first detections expected to follow, it is important to quantify how well generic gravitational-wave transients can be localize...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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Institute of Physics/American Astronomical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/96711 https://orcid.org/0000-0001-6550-3045 https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-8196-9267 |
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| author | Essick, Reed Clasey Vitale, Salvatore Katsavounidis, Erotokritos Vedovato, Gabriele Klimenko, Sergey |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Essick, Reed Clasey Vitale, Salvatore Katsavounidis, Erotokritos Vedovato, Gabriele Klimenko, Sergey |
| author_sort | Essick, Reed Clasey |
| collection | MIT |
| description | The Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo advanced ground-based gravitational-wave detectors will begin collecting science data in 2015. With first detections expected to follow, it is important to quantify how well generic gravitational-wave transients can be localized on the sky. This is crucial for correctly identifying electromagnetic counterparts as well as understanding gravitational-wave physics and source populations. We present a study of sky localization capabilities for two search and parameter estimation algorithms: coherent WaveBurst, a constrained likelihood algorithm operating in close to real-time, and LALInferenceBurst, a Markov chain Monte Carlo parameter estimation algorithm developed to recover generic transient signals with latency of a few hours. Furthermore, we focus on the first few years of the advanced detector era, when we expect to only have two (2015) and later three (2016) operational detectors, all below design sensitivity. These detector configurations can produce significantly different sky localizations, which we quantify in detail. We observe a clear improvement in localization of the average detected signal when progressing from two-detector to three-detector networks, as expected. Although localization depends on the waveform morphology, approximately 50% of detected signals would be imaged after observing 100-200 deg2 in 2015 and 60-110 deg2 in 2016, although knowledge of the waveform can reduce this to as little as 22 deg2. This is the first comprehensive study on sky localization capabilities for generic transients of the early network of advanced LIGO and Virgo detectors, including the early LIGO-only two-detector configuration. |
| first_indexed | 2024-09-23T11:52:50Z |
| format | Article |
| id | mit-1721.1/96711 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:52:50Z |
| publishDate | 2015 |
| publisher | Institute of Physics/American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/967112022-09-27T22:32:25Z LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS Essick, Reed Clasey Vitale, Salvatore Katsavounidis, Erotokritos Vedovato, Gabriele Klimenko, Sergey Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Essick, Reed Clasey Vitale, Salvatore Katsavounidis, Erotokritos The Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo advanced ground-based gravitational-wave detectors will begin collecting science data in 2015. With first detections expected to follow, it is important to quantify how well generic gravitational-wave transients can be localized on the sky. This is crucial for correctly identifying electromagnetic counterparts as well as understanding gravitational-wave physics and source populations. We present a study of sky localization capabilities for two search and parameter estimation algorithms: coherent WaveBurst, a constrained likelihood algorithm operating in close to real-time, and LALInferenceBurst, a Markov chain Monte Carlo parameter estimation algorithm developed to recover generic transient signals with latency of a few hours. Furthermore, we focus on the first few years of the advanced detector era, when we expect to only have two (2015) and later three (2016) operational detectors, all below design sensitivity. These detector configurations can produce significantly different sky localizations, which we quantify in detail. We observe a clear improvement in localization of the average detected signal when progressing from two-detector to three-detector networks, as expected. Although localization depends on the waveform morphology, approximately 50% of detected signals would be imaged after observing 100-200 deg2 in 2015 and 60-110 deg2 in 2016, although knowledge of the waveform can reduce this to as little as 22 deg2. This is the first comprehensive study on sky localization capabilities for generic transients of the early network of advanced LIGO and Virgo detectors, including the early LIGO-only two-detector configuration. National Science Foundation (U.S.) (PHY-1205512) National Science Foundation (U.S.) (PHY-0855313) National Science Foundation (U.S.) (NSF cooperative agreement PHY-0757058) 2015-04-22T18:45:16Z 2015-04-22T18:45:16Z 2015-02 2014-09 Article http://purl.org/eprint/type/JournalArticle 1538-4357 http://hdl.handle.net/1721.1/96711 Essick, Reed, Salvatore Vitale, Erik Katsavounidis, Gabriele Vedovato, and Sergey Klimenko. “LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS.” The Astrophysical Journal 800, no. 2 (February 11, 2015): 81. © 2015 American Astronomical Society. https://orcid.org/0000-0001-6550-3045 https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-8196-9267 en_US http://dx.doi.org/10.1088/0004-637x/800/2/81 Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Institute of Physics/American Astronomical Society IOP Publishing |
| spellingShingle | Essick, Reed Clasey Vitale, Salvatore Katsavounidis, Erotokritos Vedovato, Gabriele Klimenko, Sergey LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS |
| title | LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS |
| title_full | LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS |
| title_fullStr | LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS |
| title_full_unstemmed | LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS |
| title_short | LOCALIZATION OF SHORT DURATION GRAVITATIONAL-WAVE TRANSIENTS WITH THE EARLY ADVANCED LIGO AND VIRGO DETECTORS |
| title_sort | localization of short duration gravitational wave transients with the early advanced ligo and virgo detectors |
| url | http://hdl.handle.net/1721.1/96711 https://orcid.org/0000-0001-6550-3045 https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-8196-9267 |
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