Multiband Photopolarimetric Monitoring of an Outburst of the Blazar 3C 454.3 in 2007

Sasada Mahito; Uemura Makoto; Arai Akira; Fukazawa Yasushi; Kawabata Koji S.; Ohsugi Takashi; Yamashita Takuya; Isogai Mizuki; Nagae Osamu; Uehara Takeshi; Mizuno Tsunefumi; Katagiri Hideaki; Takahashi Hiromitsu; Sato Shuji; Kino Masaru

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Multiband Photopolarimetric Monitoring of an Outburst of the Blazar 3C 454.3 in 2007

机译：2007年Blazar 3C 454.3爆发的多波段光极化监测

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Wereportonopticala€”near-infraredphotopolarimetricobservationsofablazar3C454.3over200d.Theobjectexperiencedanopticaloutburstin2007July.Thisoutburstwasfollowedbyashortstatefainterthan$$V=$$15.2mag,lasting$$sim$$25d.Theobjectthenenteredanactivestateduringwhichweobservedshortflareshavingatimescaleof3a€“10d.Theobjectshowedtwotypesoffeaturesinthecolora€“magnituderelationship.Onewasaa€?bluer-when-brightera€?trendintheoutburststate,andtheotherwasaa€?redder-when-brightera€?trendinthefaintstate.Thesetwotypesoffeaturessuggestacontributionofthermalemissiontotheobservedflux,assuspectedinpreviousstudies.Ourpolarimetricobservationdetectedtwoepisodesofrotationofthepolarizationvector.Thefirstonewasacounterclockwiserotationinthe$$QU$$planeduringtheoutburststate.Afterthisrotationeventofthepolarizationvector,theobjectenteredarapidlyfadingstage.Thesecondonewasseeninaseriesofflaresduringtheactivestate.Eachflarehadaspecificpositionangleofpolarization,whichapparentlyrotatedclockwisefromthefirsttothelastflares.Thus,theobjectexhibitedrotationsofthepolarizationvectorinoppositedirections.Weestimatedadecaytimescaleoftheshortflaresduringtheactivestate,andthencalculatedanupperlimitofthestrengthofthemagneticfield,$$B=$$0.2G,assumingatypicalbeamingfactorofblazars,$$delta=$$20.Thisupperlimitof$$B$$issmallerthanthosepreviouslyestimatedfromspectralanalysis.

机译：Wereportonopticala€”近infraredphotopolarimetricobservationsofablazar3C454.3over200d.Theobjectexperiencedanopticaloutburstin2007July.Thisoutburstwasfollowedbyashortstatefainterthan $$ V = $$ 15.2mag，持久$$ SIM $$ 25d.Theobjectthenenteredanactivestateduringwhichweobservedshortflareshavingatimescaleof3a€“10d.Theobjectshowedtwotypesoffeaturesinthecolora€“magnituderelationship.Onewasaa€？更蓝 - 当 - 的BrightEra€？trendintheoutburststate， andtheotherwasaa€？更红 - 当 - 的BrightEra€？trendinthefaintstate.Thesetwotypesoffeaturessuggestacontributionofthermalemissiontotheobservedflux，assuspectedinpreviousstudies.Ourpolarimetricobservationdetectedtwoepisodesofrotationofthepolarizationvector.Thefirstonewasacounterclockwiserotationinthe $$曲$$ planeduringtheoutburststate.Afterthisrotationeventofthepolarizationvector，theobjectenteredarapidlyfadingstage.Thesecondonewasseeninaseriesofflaresduringtheactivestate.Eachflarehadaspecificpositionangleofpolarization，whichapparentlyrotatedclockwisefromthefirsttothelastflare因此，物体在相反方向上表现出极化矢量的旋转。我们估算了在活动状态期间短喇叭形的大约时间尺度，然后计算出磁场强度的上限，$ B = $ 0.2G，假设该误差是典型的上限，则$$ delta = $ 20的原假设。

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《PASJ: Publications of the Astronomical Society of Japan》 |2010年第3期|共页
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Sasada Mahito; Uemura Makoto; Arai Akira; Fukazawa Yasushi; Kawabata Koji S.; Ohsugi Takashi; Yamashita Takuya; Isogai Mizuki; Nagae Osamu; Uehara Takeshi; Mizuno Tsunefumi; Katagiri Hideaki; Takahashi Hiromitsu; Sato Shuji; Kino Masaru;
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1. Multiband photopolarimetric monitoring of an outburst of the blazar 3C 454.3 in 2007 [J] . Sasada M., Uemura M., Arai A., PASJ: Publications of the Astronomical Society of Japan . 2010,第3期

机译：2007年blazar 3C 454.3爆发的多波段光极化监测
2. Blazar 3C 454.3 in outburst and quiescence during 2005-2007: Two variable synchrotron emission peaks [J] . Ogle P.M., Wehrle A.E., Balonek T., The Astrophysical Journal. Supplement Series . 2011,第2期

机译：2005-2007年间爆发和静止的Blazar 3C 454.3：两个可变的同步加速器发射峰
3. An unusually prolonged outburst in the blazar 3C 454.3 [J] . Volvach A. E., Larionov M. G., Volvach L. N., Astronomy reports . 2017,第11期

机译：Blazar 3C 454.3中异常长时间的爆发
4. BLAZAR 3C 454.3 - THE 2004-2007 OUTBURST IN THE OPTICAL AND RADIO RANGES [C] . Volvach A. E., Volvach L. N., Larionov M. G., International Crimean Conference Microwave Telecommunication Technology . 2008

机译：Blazar 3C 454.3 - 2004-2007在光学和无线电范围内的爆发
5. High sensitivity VLBI study of the quasar 3C454.3. [D] . Luca, Peter. 2008

机译：类星体3C454.3的高灵敏度VLBI研究。
6. Multiband Spectral-Spatial RF Excitation for Hyperpolarized 2-13CDihydroxyacetone 13C-MR Metabolism Studies [O] . Irene Marco-Rius, Peng Cao, Cornelius von Morze, -1

机译：超极化2-13C二羟基丙酮13C-MR代谢研究的多频带光谱空间RF激发
7. Multiband Photopolarimetric Monitoring of the Outburst of the Blazar 3C~454.3 in 2007 [O] . Sasada, Mahito, Uemura, Makoto, Arai, Akira, 2010

机译：多波段光电测量监测Blazar的爆发 2007年3C~454.3
8. Papers Presented at 'Variability of Blazars'. Held in Turku, Finland in 1990.'High Resolution Images of Blazar Cores', 'Varying Gamma in 3C273', 'What Is Responsible for the New Outburst of 0735+178' [R] . Baath, L. B., Zhang, F. J. 1991

机译：论文在“Blazars的变异性”中发表。 1990年在芬兰图尔库举行。“Blazar Cores的高分辨率图像”，“3C273中不同的Gamma”，“0735 + 178新爆发的责任”

Multiband Photopolarimetric Monitoring of an Outburst of the Blazar 3C 454.3 in 2007

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