祝贺金彰伟和高兴老师发现超新星SN2011aj
本帖最后由 七月流火2 于 2011-3-3 20:25 编辑2月19日晚,来自宁波的金彰伟在查看高兴老师利用自己的天文台——星明天文台拍摄的超新星搜索图片中,在星系NGC 6246A中发现一超新星可疑目标,经过验证,认为是超新星目标,然后上报,经过12天的等待,在光谱确认了以后,获得CBET确认编号——SN2011aj,这是我国业余爱好者获得编号的第二颗超新星,前面一颗由蔡元生和吕智科获得(SN2006ds),而高兴老师和孙国佑于去年10月份上报的一颗超新星,目前正在等待编号中。
CBET公告
Electronic Telegram No. 2664
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:Daniel W. E. Green; Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA02138; U.S.A.
e-mail:cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network
SUPERNOVA 2011aj IN NGC 6246A = PSN J16501398+5522280
Zhangwei Jin (Ningbo, Zhejiang, China) and Xing Gao (Urumqi, Xinjiang,
China) report the discovery of an apparent supernova (mag approximately 17.3)
near the galaxy NGC 6246A = PGC 59090 on a 60-s survey image (limiting mag
about 19.0) taken by Xing Gao in the course of the Xingming Observation Sky
Survey around Feb. 18.922 UT using an unfiltered CCD with a Celestron C14
0.35-m Schmidt-Cassegrain telescope at Mt. Nanshan.The new object, which was
designated PSN J16501398+5522280 when posted on the Central Bureau's TOCP
webpage and is here designated SN 2011aj (based on the spectroscopy reported
below), is located at R.A. = 16h50m13s.98, Decl.= +55d22'28".0 (equinox 2000.0).
Additional approximate magnitudes (unfiltered CCD unless noted otherwise):
1992 June 29, [19.5 (Digitized Sky Survey; via Jin and Gao); 2011 Feb. 16.924,
17.7 (Jin and Gao); 22.397, 16.6 (J. Brimacombe, Cairns, Australia; remotely
using a robotic 0.51-m RCOS telescope + SBIG STL11K CCD camera near Mayhill,
NM, U.S.A.; position end figures 14s.01, 28".5).The discoverers have posted
their images of 2011?? at URL http://www.xjltp.com/XOSS/XM18ZJ/XM18ZJ.htm.
G. H. Marion, Harvard-Smithsonian Center for Astrophysics (CfA), on
behalf of the CfA Supernova Group, reports that a spectrogram (range 340-740
nm) of 2011aj was obtained on Mar. 2 UT by P. Berlind with the F. L. Whipple
Observatory 1.5-m telescope (+ FAST).Cross-correlation with a library of
supernova spectra using the "Supernova Identification" code (SNID; Blondin and
Tonry 2007, Ap.J. 666, 1024) shows that 2011aj is a type-Ia supernova a few
days past maximum; the velocity of the Si II 635.5-nm feature, measured at the
absorption minimum, is 8800 km/s.
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2011 CBAT
2011 March 3 (CBET 2664) Daniel W. E. Green 恭喜金,高…… 恭喜,发的速度挺快,再接再厉!! 发现用的镜子
祝贺一下,真牛。::070821_01.jpg:: 恭喜两位。 厉害!!!
恭喜,贺喜!! ::070821_09.jpg::
恭喜两位!
很好的观测条件! 继续加油!! 热烈恭喜二位希望再接再厉 为业余我们这些业余爱好者多添光彩 贺喜啊~~~~~~~~~~~~~~~~~ ::070821_09.jpg::可望不可即 命名惯例
当国际天文联合会收到发现超新星的报告后,他们都会为它命名。名字是由发现的年份和一至两个拉丁字母所组成:一年中首先发现的26颗超新星会用从A到Z的大写字母命名,如超新星1987A就是在1987年发现的第一颗超新星;而第二十六以后的则用两个小写字母命名,以aa、ab、ac这样的顺序起始。专业和业余天文学家每年能发现几百颗超新星(2005年367颗,2006年551颗,2007年572颗),例如2005年发现的最后一颗超新星为SN 2005nc,表示它是2005年发现的第367颗超新星。 历史上的超新星则只需要按所发现的年份命名,如SN 185、SN 1006、SN 1054、SN 1572(第谷超新星)和SN 1604(开普勒超新星)。自1885年起开始使用字母命名,即使在那一年只有一颗超新星被发现(如SN 1885A和1907A等)。表示超新星的前缀SN有时也可以省略。 爲什麽2月發現的立刻有編號,而去年10月的還等待編號? 这样一台望远镜就发现了超新星,佩服佩服。 表示祝贺!!!恭喜!!!! 恭喜一下!