Probing the γ-Ray Emission Origin of Two Star-forming Galaxies NGC 2403 and NGC 3424 with the Fermi-LAT
文献类型：期刊论文
| 作者 | Liu LJ(刘林杰)1,2; Zhang, Wei3,4; Hou X(侯贤)1; Martin, Pierrick5 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2026-05-10 |
| 卷号 | 1002期号:2 |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ae5d3b |
| 产权排序 | 第1完成单位 |
| 文献子类 | Article |
| 英文摘要 | Star-forming galaxies (SFGs) are a subclass of gamma-ray emitters, and a correlation between their gamma-ray luminosity (L gamma) and the total infrared (IR) luminosity (LIR) has been established based on the Fermi Large Area Telescope (LAT) data. NGC 2403 and NGC 3424 have been reported as outliers in the L gamma-LIR correlation with light curves showing significant variability, which contrasts with the temporally stable gamma-ray emission in other SFGs, originating primarily from cosmic rays interacting with interstellar medium. In this study, we reanalyze the gamma-ray emission in the directions of NGC 2403 and NGC 3424 using more than 16.5 yr Fermi-LAT data. NGC 3424 is found to be spatially coincident with the detected gamma-ray source, while NGC 2403 is significantly offset from the nearest gamma-ray source, suggesting an implausible association. We confirm the previously reported variability of both gamma-ray sources and the significant deviation from the L gamma-LIR correlation when assuming an association of both gamma-ray sources with the two galaxies. Our findings lend further support to the interpretation that their gamma-ray emission is driven primarily by alternative radiative processes-rather than by star formation activity-such as the ejecta of the Type IIP supernova SN 2004dj in NGC 2403 interacting with a surrounding high-density shell and an obscured active galactic nucleus in NGC 3424. |
| 学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| URL标识 | 查看原文 |
| 出版地 | No.2 The Distillery, Glassfields, Avon Street, Bristol, ENGLAND |
| WOS关键词 | LARGE-AREA TELESCOPE ; MAGELLANIC-CLOUD ; AGN ACTIVITY ; M31 |
| 资助项目 | National natural |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001753287500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National natural |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/29183]  |
| 专题 | 星系类星体研究组 |
| 通讯作者 | Hou X(侯贤) |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People’s Republic of China; xhou@ynao.ac.cn; 2.University of the Chinese Academy of Sciences, Beijing 100049, People’s Republic of China; 3.State Key Laboratory for Particle Astrophysics & Experimental Physics Division & Computing Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China; 4.TIANFU Cosmic Ray Research Center, Chengdu, Sichuan, People’s Republic of China; 5.IRAP, Université de Toulouse, CNRS, UPS, CNES, F-31028 Toulouse, France; pierrick.martin@irap.omp.eu |
| 推荐引用方式 GB/T 7714 | Liu LJ,Zhang, Wei,Hou X,et al. Probing the γ-Ray Emission Origin of Two Star-forming Galaxies NGC 2403 and NGC 3424 with the Fermi-LAT[J]. ASTROPHYSICAL JOURNAL,2026,1002(2). |
| APA | 刘林杰,Zhang, Wei,侯贤,&Martin, Pierrick.(2026).Probing the γ-Ray Emission Origin of Two Star-forming Galaxies NGC 2403 and NGC 3424 with the Fermi-LAT.ASTROPHYSICAL JOURNAL,1002(2). |
| MLA | 刘林杰,et al."Probing the γ-Ray Emission Origin of Two Star-forming Galaxies NGC 2403 and NGC 3424 with the Fermi-LAT".ASTROPHYSICAL JOURNAL 1002.2(2026). |
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来源：云南天文台
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