Matches in SemOpenAlex for { <https://semopenalex.org/work/W4310854080> ?p ?o ?g. }
- W4310854080 endingPage "351" @default.
- W4310854080 startingPage "340" @default.
- W4310854080 abstract "ABSTRACT The Event Horizon Telescope (EHT), with ∼20 $mu$ as high angular resolution, recently resolved the millimetre image of the suppermassive black hole in the Galaxy, Sagittarius A∗. This opens a new window to study the plasma on horizon scales. The accreting disc probably contains a small fraction of non-thermal electrons and their emissions should contribute to the observed image. We study if such contributions are sufficient to cause structural differences detectable by current and future observational capabilities. We introduce non-thermal electrons in a semi-analytical accretion disc, which considers viscosity-leading heating processes, and adopt a continued hybrid electron energy distribution of thermal distribution and power-law tail. We generate the black hole images and extract the structural features as crescent parameters. We find the existence of non-thermal electron radiation makes the crescent much brighter, slightly larger, moderately thicker, and much more symmetric. When the non-thermal connecting Lorentz factor γc = 65, which is equivalent to the non-thermal electrons accounting for ∼1.5 per cent of the totals, non-thermal effects cause ∼2 per cent size difference at 230 GHz. Comparing with the structural changes caused by other physical factors, including inclination between the system and the observer, black hole spin, and interstellar medium scattering effects, we find that although non-thermal electron radiation takes the most unimportant role at 230 GHz, it becomes more significant at 345 GHz." @default.
- W4310854080 created "2022-12-19" @default.
- W4310854080 creator A5002072128 @default.
- W4310854080 creator A5017157541 @default.
- W4310854080 creator A5051530453 @default.
- W4310854080 creator A5078396598 @default.
- W4310854080 date "2022-11-29" @default.
- W4310854080 modified "2023-10-18" @default.
- W4310854080 title "Impact of non-thermal electron radiation effects on the horizon scale image structure of Sagittarius A∗" @default.
- W4310854080 cites W2031106768 @default.
- W4310854080 cites W2038551992 @default.
- W4310854080 cites W2042155338 @default.
- W4310854080 cites W2051864624 @default.
- W4310854080 cites W2070069972 @default.
- W4310854080 cites W2073898877 @default.
- W4310854080 cites W2083910651 @default.
- W4310854080 cites W2096336682 @default.
- W4310854080 cites W2109112103 @default.
- W4310854080 cites W2114169704 @default.
- W4310854080 cites W2150151189 @default.
- W4310854080 cites W2152059463 @default.
- W4310854080 cites W2167436765 @default.
- W4310854080 cites W2259637532 @default.
- W4310854080 cites W2493042390 @default.
- W4310854080 cites W2565108373 @default.
- W4310854080 cites W2590309311 @default.
- W4310854080 cites W2608925927 @default.
- W4310854080 cites W2775381858 @default.
- W4310854080 cites W2786479821 @default.
- W4310854080 cites W2889248467 @default.
- W4310854080 cites W2896022707 @default.
- W4310854080 cites W2909133871 @default.
- W4310854080 cites W2936095933 @default.
- W4310854080 cites W2936349953 @default.
- W4310854080 cites W2937056002 @default.
- W4310854080 cites W2937696600 @default.
- W4310854080 cites W2938000962 @default.
- W4310854080 cites W2939024351 @default.
- W4310854080 cites W2939038312 @default.
- W4310854080 cites W2950594173 @default.
- W4310854080 cites W3008840874 @default.
- W4310854080 cites W3022973072 @default.
- W4310854080 cites W3036425742 @default.
- W4310854080 cites W3044868348 @default.
- W4310854080 cites W3087847054 @default.
- W4310854080 cites W3098913053 @default.
- W4310854080 cites W3099279671 @default.
- W4310854080 cites W3099367646 @default.
- W4310854080 cites W3099818434 @default.
- W4310854080 cites W3099961299 @default.
- W4310854080 cites W3100792286 @default.
- W4310854080 cites W3101574825 @default.
- W4310854080 cites W3102262867 @default.
- W4310854080 cites W3102489813 @default.
- W4310854080 cites W3103734243 @default.
- W4310854080 cites W3103921749 @default.
- W4310854080 cites W3103974864 @default.
- W4310854080 cites W3104119320 @default.
- W4310854080 cites W3105763367 @default.
- W4310854080 cites W3106156689 @default.
- W4310854080 cites W3106482445 @default.
- W4310854080 cites W3122832054 @default.
- W4310854080 cites W3127399996 @default.
- W4310854080 cites W3129941443 @default.
- W4310854080 cites W3137038733 @default.
- W4310854080 cites W3139022070 @default.
- W4310854080 cites W3170133809 @default.
- W4310854080 cites W3172070697 @default.
- W4310854080 cites W3177906734 @default.
- W4310854080 cites W3215800375 @default.
- W4310854080 cites W4205375533 @default.
- W4310854080 cites W4280589633 @default.
- W4310854080 cites W4280598936 @default.
- W4310854080 cites W4280608520 @default.
- W4310854080 cites W4280611431 @default.
- W4310854080 cites W4280631862 @default.
- W4310854080 cites W4280648529 @default.
- W4310854080 cites W4281555333 @default.
- W4310854080 doi "https://doi.org/10.1093/mnras/stac3482" @default.
- W4310854080 hasPublicationYear "2022" @default.
- W4310854080 type Work @default.
- W4310854080 citedByCount "0" @default.
- W4310854080 crossrefType "journal-article" @default.
- W4310854080 hasAuthorship W4310854080A5002072128 @default.
- W4310854080 hasAuthorship W4310854080A5017157541 @default.
- W4310854080 hasAuthorship W4310854080A5051530453 @default.
- W4310854080 hasAuthorship W4310854080A5078396598 @default.
- W4310854080 hasBestOaLocation W43108540802 @default.
- W4310854080 hasConcept C121332964 @default.
- W4310854080 hasConcept C147120987 @default.
- W4310854080 hasConcept C148292158 @default.
- W4310854080 hasConcept C153294291 @default.
- W4310854080 hasConcept C204530211 @default.
- W4310854080 hasConcept C2776401274 @default.
- W4310854080 hasConcept C2779662365 @default.
- W4310854080 hasConcept C44870925 @default.
- W4310854080 hasConcept C62520636 @default.
- W4310854080 hasConcept C98444146 @default.