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Millimeter Light Curve with Abrupt Jump in Cyg X-3 2008 Aprila€“May Outburst

机译:Cyg X-3的毫米光曲线突然跳跃2008年4月-5月爆发

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CygX-3isawell-knownmicroquasarwithabipolarrelativisticjet.Itsfamousgiantradiooutburstshavebeenrepeatedonceeveryseveralyears.However,thebehaviorofthemillimeter-waveemissionhasremainedunclearbecauseoflimitationsoftimeresolutioninpreviousobservations.WereporthereonmillimeterwaveobservationsofCygX-3experiencinggiantoutburstswithoneofthefinesttimeresolutions.Wehavefoundaseriesofshort-livedflareswithamplitudesof1a€“2Jyinthemillimeterlightcurveofthe2008Aprila€“Mayoutburst.Theyhaveflatspectraataround100GHz.Wehavealsofoundabruptandlargeamplitudefluxdensitychangeswith$$e$$-foldingtimeof3.6minorless.ThesourcesizeofCygX-3isconstrainedtowithin0.4AU,andthebrightnesstemperatureisestimatedtobe$$T_mathrm{B}$$$$gtrsim$$1$$ imes$$10$$^{11}$$K.
机译:CygX-3isawell-knownmicroquasarwithabipolarrelativisticjet.Itsfamousgiantradiooutburstshavebeenrepeatedonceeveryseveralyears.However,thebehaviorofthemillimeter-waveemissionhasremainedunclearbecauseoflimitationsoftimeresolutioninpreviousobservations.WereporthereonmillimeterwaveobservationsofCygX-3experiencinggiantoutburstswithoneofthefinesttimeresolutions.Wehavefoundaseriesofshort-livedflareswithamplitudesof1a€“2Jyinthemillimeterlightcurveofthe2008Aprila€“Mayoutburst.Theyhaveflatspectraataround100GHz.Wehavealsofoundabruptandlargeamplitudefluxdensitychangeswith $$è$$ - foldingtimeof3.6minorless.ThesourcesizeofCygX-3isconstrainedtowithin0.4AU,andthebrightnesstemperatureisestimatedtobe $$ T_mathrm {B} $$$$ gtrsim $$ 1 $$ imes $$ 10 $$ ^ {11} $$ K。

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