巡天猎手-孙国佑

星明天文台成员,PSP公众超新星项目管理员,埃格•威尔逊奖获得者,C/2015 F5 斯万-星明彗星发现者,中国首颗银河系新星发现者

我发现的矮新星



第一颗(国内业余爱好者首次发现)

编号:PNV J21581852+2419246
发现时间(UT):2011 10 27.64362
坐标:21h58m18s.52 +24°19’24”.6
类型:SU UMa
参考文献:The first confirmed superoutburst of the dwarf nova GALEX J215818.5+241924
                  Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV: The Fourth Year (2011–2012)


2011年我发现这颗矮新星历史首次爆发后,国外学者在2013年11月26日,2014年7月20日,2015年10月2日,分别观测到了再次爆发。其中2015年10月的这次爆发,星明天文台也观测到了。
2017年6月19日晚,星明天文台再次观测到了,这颗矮新星的爆发。

 

上报文本

POSSIBLE NOVA IN Pegasus

Guoyou Sun(Wenzhou, Zhejiang, China) and Xing Gao (Urumqi, Xinjiang,
China),report the discovery of a possible supernova (mag approximately 14.5) on
several 40-s survey images (limiting mag about 19.0)taken by Xing Gao in
Xingming Observatory Sky Survey(C42) around Oct 27.64362 UT using a unfiltered
CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new
object approximately located at R.A.=21h58m18s.52 Decl.=+24°19’24”.6 (equinox
2000.0). Nothing is visible at this position on archival images taken on Oct.14
(limiting mag 19) and on the DSS(POSS2/UKSTU Red) from Oct. 11,1990(limiting mag
about 19.8).

NET USNO-A2.0
XM04GS C2011 10 27.64362 21 58 18.52 +24 19 24.6 14.5 V C42

All images can be seen from: http://www.xjltp.com/XOSS/XM04GS/XM04GS.htm

C42 Xingming Observatory, Mt. Nanshan. Observers G.Sun,X.Gao ,Measurers G.Sun.
0.356-m f/6.9 Schmidt-Cassegrain telescope and CCD.
 


VSNET报告称这是一颗新矮新星


OT J215818.5+241925 superhump period We have received observations of this new dwarf nova (=PNV J21581852+2419246) from Enrique de Miguel and Ian Miller. As already reported, there are clear superhumps. The mean period determined from this single-night data is 0.0675(2) d. My opinion is that people should use “PNV” only when there is reasonable possibility for a nova. 


报告地址:


http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-campaign-dn/8145

http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-campaign-dn/8147


相关论文:The first confirmed superoutburst of the dwarf nova GALEX J215818.5+241924

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV: The Fourth Year (2011–2012)
 

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