New background quasars in the vicinity of the Andromeda Galaxy discovered with the Guoshoujing Telescope (LAMOST)
| Autor: | Zhong-Rui Bai, Ye-Ping Li, Yong Zhang, Juanjuan Ren, Yong-Heng Zhao, Shi-Wei Sun, Mao-Sheng Xiang, Jian-Jun Chen, Ji-Jun Ni, Haotong Zhang, Hong-Liang Yan, H. W. Zhang, Qi-Shuai Lu, You Wang, Zhi-Ying Huo, Xiaowei Liu, Hai Wang, Huawei Zhang, Rubén García-Benito, Haibo Yuan |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
Andromeda Galaxy Astrophysics::High Energy Astrophysical Phenomena media_common.quotation_subject Astrophysics::Instrumentation and Methods for Astrophysics Astronomy Astronomy and Astrophysics Quasar Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Redshift law.invention LAMOST Telescope Photometry (astronomy) Space and Planetary Science law Sky Large Magellanic Cloud Astrophysics::Galaxy Astrophysics media_common |
| Zdroj: | Research in Astronomy and Astrophysics. 10:612-620 |
| ISSN: | 1674-4527 |
| Popis: | We present preliminary analyses of spectra of quasar candidates in two Guoshoujing Telescope (GSJT, formerly named the Large Sky Area Multi-Object Fiber Spectroscopic Telescope - LAMOST) test fields near M 31 where one is close to the optical center of the disk and the other is towards the northeastern outskirts of the halo, obtained during the early stage of the GSJT commissioning in the last season of 2009. Both fields contain background low-redshift quasar candidates selected from the SDSS photometry. In total, 14 new quasars with redshifts up to 2 and i magnitudes between 16.7 and 19.2, are discovered, including 7 within the 2.5° central region of M 31. We briefly discuss the potential applications of these newly discovered bright quasars. |
| Databáze: | OpenAIRE |
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