Radio Star Candidates from FIRST and 2MASS Databases
We positionally cross-identified FIRST (the Faint Images of the Radio Sky at Twenty centimeters) catalogue with 2MASS (the Two Micron All Sky Survey) pointed-source database and collected the data from radio band and near infrared band. Then the data were cross-matched with the Veron-Cetty & Véron 2006 catalog and the Tycho-2 catalog,respectively. Therefore the known samples of quasars and stars are obtained. We applied principal component analysis (PCA) on the known sample. The overall sample may be projected in the principal component space. From the space,we can easily locate the area that radio stars occupy,and select out radio star candidates. With the follow-up observation of these candidates,the properties of radio stars may be studied.
techniques:miscellaneous methods:statistical methods:data analysis astronomical data bases:miscellaneous
Yanxia Zhang Yongheng Zhao
National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China
国际会议
The 252th Symposium of the International Astronomical Union(国际天文学联合会第252届研讨会)
海南三亚
英文
129-130
2008-04-06（万方平台首次上网日期，不代表论文的发表时间）