Is BZB J1450+5201 the most distant gamma-ray BL Lacertae object?
文献类型：期刊论文
| 作者 | Liao NH(廖能惠)1,2,3 ; Bai JM(白金明)1,2; Wang JG(王建国)1,2; Liu HT(刘洪涛)1,2; Zhang JJ(张居甲)1,2,3; Jiang, N4,5; Yuan ZL(袁尊里)1,2; Chen, L6
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2015-03 |
| 卷号 | 15期号:3页码:313-326 |
| ISSN号 | 1674-4527 |
| 关键词 | galaxies: active BL Lacertae objects: individual (BZB J1450+5201) gamma rays: galaxies radiation mechanisms: non-thermal |
| 通讯作者 | Liao, NH (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | BL Lacertae (BL Lac) objects at high redshifts (z >= 2) are rarely detected. Through careful analysis of its Sloan Digital Sky Survey spectrum, BZB J1450+5201 is confirmed to be a high-z BL Lac object with z >= 2.471 by identifying the Ly alpha 1216 and CIV 1548/1550 absorption lines. This indicates that BZB J1450+5201 is the most distant BL Lac object discovered to date. Careful analysis of the five-year Fermi-LAT data of 2FGL J1451.0+5159 shows that its gamma-ray emission is robust with a confidence level of 6.2 sigma at 1-3 GeV and 6.7 sigma at 3-10 GeV. This analysis with the five-year data overcomes confusion with its bright neighbor, which is a problem when analyzing the two-year data. In addition, 2FGL J1451.0+5159 is confirmed to be associated with BZB J1450+5201 using the five-year data. The analysis of multiwavelength data, from radio to gamma-ray energies, indicates that BZB J1450+5201 is an intermediate synchrotron peaked (ISP) source. Its multiwavelength properties are consistent with distributions of other ISP sources at lower redshifts in the second Fermi-LAT AGN catalog. The pure synchrotron self-Compton (SSC) model seems to be disfavored, but the scattering of weak external emission plus the SSC process can provide a satisfactory description of the broadband emission. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LARGE-AREA TELESCOPE ; DIGITAL SKY SURVEY ; INFRARED-SURVEY-EXPLORER ; EXTRAGALACTIC BACKGROUND LIGHT ; ACTIVE GALACTIC NUCLEI ; BLAZAR S5 0716+714 ; DATA RELEASE ; MULTIWAVELENGTH OBSERVATIONS ; OPTICAL SPECTROSCOPY ; DETECTED BLAZARS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/1674-4527/15/3/002/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000350680800002 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5470]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Key Laboratory for Research in Galaxies and Cosmology, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, China 5.Department of Astronomy, University of Science and Technology of China, Hefei 230026, China 6.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China |
| 推荐引用方式 GB/T 7714 | Liao NH,Bai JM,Wang JG,et al. Is BZB J1450+5201 the most distant gamma-ray BL Lacertae object?[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(3):313-326. |
| APA | Liao NH.,Bai JM.,Wang JG.,Liu HT.,Zhang JJ.,...&Chen, L.(2015).Is BZB J1450+5201 the most distant gamma-ray BL Lacertae object?.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(3),313-326. |
| MLA | Liao NH,et al."Is BZB J1450+5201 the most distant gamma-ray BL Lacertae object?".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.3(2015):313-326. |
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来源：云南天文台
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