| Project/Area Number |
22740128
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
HAYAMA Kazuhiro 国立天文台, 重力波プロジェクト推進室, 研究者 (70570646)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 重力波 / X線天文学 / RXTE / LIGO / 重力波天文学 / VIRGO / マルチメッセンジャー / データ解析 / マルチメッセンジャー観測 / SCO X-1 |
|---|
| Research Abstract |
We carried out multimessenger observation of Sco X-1, which is a low mass X-ray binary radiating strongest X-ray among external Galaxy objects, and searched for gravitational waves from Sco X-1 for the first time. In general, it is likely that a gravitational wave is accompanied with electromagnetic waves and cosmic rays. Focusing on this coincidence, we made observations of Sco X-1 using LIGO, the American gravitational wave telescopes, and RXTE, the X-ray satellite. We analyzed both time-series data and performed coincidence analyses. As a result, although we could not find evidence of the gravitational wave, we found five coincident events. Analyzing the five events, we will continue study to constrain models that explain the simultaneous radiation of a gravitational wave and a X-ray.
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