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000626027 0247_ $$2arXiv$$aarXiv:2411.07925
000626027 0247_ $$2datacite_doi$$a10.3204/PUBDB-2025-01264
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000626027 041__ $$aEnglish
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000626027 088__ $$2arXiv$$aarXiv:2411.07925
000626027 1001_ $$0P:(DE-H253)PIP1103338$$aYuan, Chengchao$$b0$$eCorresponding author
000626027 245__ $$aRevisiting X-Ray Afterglows of Jetted Tidal Disruption Events with the External Reverse Shock
000626027 260__ $$c2025
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000626027 500__ $$aApJ 982 196 (2025). 11 pages, 3 figures, 1 table. Accepted for publication in ApJ
000626027 520__ $$aWe investigate the external reverse shock (RS) region of relativistic jets as the origin of X-ray afterglows of jetted tidal disruption events (TDEs) that exhibit luminous jets accompanied by fast-declining nonthermal X-ray emissions. We model the dynamics of jet propagating within an external density medium, accounting for continuous energy injection driven by accretion activities. We compute the time-dependent synchrotron and inverse Compton emissions from the RS region. Our analysis demonstrates that the RS scenario can potentially explain the X-ray light curves and spectra of four jetted TDEs, namely, AT 2022cmc, Swift J1644, Swift J2058, and Swift J1112. Notably, the rapid steepening of the late-stage X-ray light curves can be attributed jointly to the jet break and cessation of the central engine as the accretion rate drops below the Eddington limit. Using parameters obtained from X-ray data fitting, we also discuss the prospects for γ-ray and neutrino detection.
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000626027 7001_ $$0P:(DE-H253)PIP1021242$$aWinter, Walter$$b1
000626027 7001_ $$aZhang, B. Theodore$$b2
000626027 7001_ $$00000-0002-5358-5642$$aMurase, Kohta$$b3
000626027 7001_ $$aZhang, Bing$$b4
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000626027 9201_ $$0I:(DE-H253)Z_THAT-20210408$$kZ_THAT$$lTheoretische Astroteilchenphysik$$x0
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