孙国佑 XM10AD = PTF10acbu * 超新星

经过ATEL3088号公报确认,该候选体是Ic型超新星。

2010年10月3日,孙国佑在SNSP搜索中发现一个超新星候选体,排除变星等可能后,上报CBAT,该目标在4.5.6日的观测中逐渐增亮,7日后续上报,8日CBET发布公报说为可疑超新星,只是没有拍摄光谱(主要是由于地平高度比较低,我们曾经联系北京兴隆的国家天文台2.16米望远镜也由于高度原因而无法拍摄光谱确认),等待后续确认,如确认,将是大陆天文爱好者发现的首颗超新星(台湾业余天文学家蔡元生、吕科智曾于2006发现一颗超新星)。

详细报告见

http://www.xjltp.com/XOSS/XM10AD/XM10AD.htm

以下为CBET公报

POSSIBLE SUPERNOVA IN NGC 5430
Guoyou Sun, Wenzhou, Zhejiang, China; and Xing Gao, Urumqi, Xinjiang,
China, report the discovery of a possible supernova (mag approximately 17.2)
on 60-s survey images (limiting mag about 19) taken by Xing Gao in the
course of the Xingming Observation Sky Survey at Mt. Nanshan around Oct. 3.605
UT using an unfiltered CCD camera with a Celestron C14 Schmidt-Cassegrain
telescope.  The new object is located at R.A. = 14h00m47s.12 +/- 0s.12, Decl.
= +59d20’17”.0 +/- 0″.2 (equinox 2000.0; measured by Sun), which is 13″.7
west and 33″.5 north of the nucleus of NGC 5430.  Nothing is visible at this
position on a Digitized Sky Survey image from 1997 Apr. 8 (limiting mag about
19.5; no bandpass stated).  Additional magnitudes for the variable provided
by Sun:  Oct. 4.578, 17.2; 5.588, 16.9; 6.584, 16.7.
Following posting on the Central Bureau’s unconfirmed-objects webpage,
G. Cortini (Predappio, Italy, 0.35-m telescope) reports that the variable
appeared at mag 17.3 with position end figures 47s.08, 17.0 (offset 1″.3
east, 34″ north of the center of NGC 5430) on several unfiltered CCD images
(limiting mag about 18.5) taken on Oct. 6.81.  S. Nakano, Sumoto, Japan,
forwards mag 17.0 and position end figures 47s.09, 16″.6 (offset 10″ east,
33″ north) from unfiltered CCD images (limiting mag 18.0) taken by K. Kadota
(Ageo, Japan, 0.25-m f/5 reflector + SBIG ST-9E camera) on Oct. 6.080.  T.
Yusa, Osaki, Japan, reports mag 17.0 and position end figures 47s.10, 16″.7
(offset 10″ east, 33″ north of the center of NGC 5430) from unfiltered CCD
frames (limiting mag 18.5) taken on Oct. 7.402 with a 0.30-m f/7 Cassegrain
telescope (+ SBIG STL-1001E camera).

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