Bibliographic Details
| Title: |
SDSS J013127.34$-$032100.1: A newly discovered radio-loud quasar at $z=5.18$ with extremely high luminosity |
| Authors: |
Yi, Wei-Min, Wang, Feige, Wu, Xue-Bing, Yang, Jinyi, Bai, Jin-Ming, Fan, Xiaohui, Brandt, William N., Ho, Luis C., Zuo, Wenwen, Kim, Minjin, Wang, Ran, Yang, Qian, Zhang, Ju-jia, Wang, Fang, Wang, Jian-Guo, Ai, Yanli, Fan, Yu-Feng, Chang, Liang, Wang, Chuan-Jun, Lun, Bao-Li, Xin, Yu-Xin |
| Publication Year: |
2014 |
| Collection: |
Astrophysics |
| Subject Terms: |
Astrophysics - Astrophysics of Galaxies |
| More Details: |
Only very few z>5 quasars discovered to date are radio-loud, with a radio-to-optical flux ratio (radio-loudness parameter) higher than 10. Here we report the discovery of an optically luminous radio-loud quasar, SDSS J013127.34-032100.1 (J0131-0321 in short), at z=5.18+-0.01 using the Lijiang 2.4m and Magellan telescopes. J0131-0321 has a spectral energy distribution consistent with that of radio-loud quasars. With an i-band magnitude of 18.47 and radio flux density of 33 mJy, its radio-loudness parameter is ~100. The optical and near-infrared spectra taken by Magellan enable us to estimate its bolometric luminosity to be L_bol ~ 1.1E48 erg/s, approximately 4.5 times greater than that of the most distant quasar known to date. The black hole mass of J0131-0321 is estimated to be 2.7E9 solar masses, with an uncertainty up to 0.4 dex. Detailed physical properties of this high-redshift, radio-loud, potentially super-Eddington quasar can be probed in the future with more dedicated and intensive follow-up observations using multi-wavelength facilities.
Comment: 5 pages, 3 figures, accepted to ApJL |
| Document Type: |
Working Paper |
| DOI: |
10.1088/2041-8205/795/2/L29 |
| Access URL: |
http://arxiv.org/abs/1410.2689 |
| Accession Number: |
edsarx.1410.2689 |
| Database: |
arXiv |
