書誌事項
- 公開日
- 2022-12-28
- 資源種別
- journal article
- 権利情報
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- http://creativecommons.org/licenses/by/4.0/
- https://iopscience.iop.org/info/page/text-and-data-mining
- DOI
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- 10.3847/2041-8213/aca281
- 公開者
- American Astronomical Society
この論文をさがす
説明
<jats:title>Abstract</jats:title> <jats:p>Blazars are a class of jet-dominated active galactic nuclei with a typical double-humped spectral energy distribution. It is of common consensus that the synchrotron emission is responsible for the low frequency peak, while the origin of the high frequency hump is still debated. The analysis of X-rays and their polarization can provide a valuable tool to understand the physical mechanisms responsible for the origin of high-energy emission of blazars. We report the first observations of BL Lacertae (BL Lac) performed with the Imaging X-ray Polarimetry Explorer, from which an upper limit to the polarization degree Π<jats:sub> <jats:italic>X</jats:italic> </jats:sub> < 12.6% was found in the 2–8 keV band. We contemporaneously measured the polarization in radio, infrared, and optical wavelengths. Our multiwavelength polarization analysis disfavors a significant contribution of proton-synchrotron radiation to the X-ray emission at these epochs. Instead, it supports a leptonic origin for the X-ray emission in BL Lac.</jats:p>
収録刊行物
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- The Astrophysical Journal Letters
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The Astrophysical Journal Letters 942 (1), L10-, 2022-12-28
American Astronomical Society
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詳細情報 詳細情報について
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- CRID
- 1360580232390828544
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- ISSN
- 20418213
- 20418205
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
