Institutional Repository of Radio Astronomy Research Laboratory
| VLBI Imaging of Parsec-scale Radio Structures in Nearby Low-luminosity Active Galactic Nuclei | |
Cheng, Xiaopeng1; An, Tao2,3,4; Baan, Willem A.3,5 ; Baldi, Ranieri D.6; Williams-Baldwin, David R. A.7; Sohn, Bong Won1,8; Beswick, Robert7; McHardy, Ian M.9
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| 2025-04-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
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| ISSN | 0067-0049 |
| Volume | 277Issue:2Pages:56 |
| Contribution Rank | 3 |
| Abstract | We report the results of high-resolution 5 GHz Very Long Baseline Array and European VLBI Network observations of 36 nearby galaxies, an extension of the Legacy e-MERLIN Multi-band Imaging of Nearby Galaxies survey. Our sample includes 21 low ionization nuclear emission regions, four Seyferts, three absorption line galaxies, and eight H ii galaxies. We achieved an unprecedented detection rate, successfully imaging 23 out of 36 sources with a detection threshold of similar to 20 mu Jy beam(-1). The radio sizes are typically of <= 5 pc. Core identification was achieved in 16 sources, while seven others were identified as core candidates. Radio luminosities of the sample range from 10(34) to 10(38) erg s(-1). Our analysis reveals a predominance of compact core structures, with 10 sources exhibiting a one-sided core jet morphology and NGC 2146 exhibiting a rare two-sided jet structure. The study advances our understanding of the compactness of radio sources at various scales, indicating a core-dominated nature in all but one galaxy, NGC 2655. We find moderate to strong correlations between radio luminosity, black hole (BH) mass, optical [O iii] line luminosity, and hard X-ray luminosity, suggesting a common active galactic nucleus (AGN) core origin. These results provide new insights into the fundamental plane of BH activity and support the role of the synchrotron process in low-luminosity AGN radio emission. |
| DOI | 10.3847/1538-4365/adba4c |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | XMM-NEWTON OBSERVATIONS ; SAGITTARIUS-A-ASTERISK ; DWARF SEYFERT NUCLEI ; EARLY-TYPE GALAXIES ; BLACK-HOLE ; SPECTROSCOPIC SURVEY ; FUNDAMENTAL PLANE ; INACTIVE GALAXIES ; SPIRAL GALAXIES ; E-MERLIN |
| Funding Project | Brain Pool Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT[2019H1D3A1A01102564] ; Brain Pool Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT[RS-2024-00407499] ; National Research Foundation of Korea (NRF) - Korean government (KASA, Korea AeroSpace Administration)[RS-2024-00509838] ; National Key R&D Programme of China[2018YFA0404603] ; Chinese Academy of Sciences (CAS)[114231KYSB20170003] ; North American radio astronomy institutes[EC 082] ; UK Research and Innovation ; Shanghai Astronomical Observatory through an MoU with the NRAO[BA152] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001458428500001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | Brain Pool Program through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT ; National Research Foundation of Korea (NRF) - Korean government (KASA, Korea AeroSpace Administration) ; National Key R&D Programme of China ; Chinese Academy of Sciences (CAS) ; North American radio astronomy institutes ; UK Research and Innovation ; Shanghai Astronomical Observatory through an MoU with the NRAO |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7549 |
| Collection | 射电天文研究室_恒星形成与演化研究团组 |
| Corresponding Author | Cheng, Xiaopeng; An, Tao |
| Affiliation | 1.Korea Astron & Space Sci Inst, 776 Daedeok Daero, Daejeon 34055, South Korea 2.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 4.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China 5.Netherlands Inst Radio Astron ASTRON, NL-7991 PD Dwingeloo, Netherlands 6.INAF Ist Radioastron, Via P Gobetti 101, I-40129 Bologna, Italy 7.Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, England 8.Univ Sci & Technol, Coll Med, Grad Program, Dept Biomed Sci, Gajeong Ro 217, Daejeon 34113, South Korea 9.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, England |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Cheng, Xiaopeng,An, Tao,Baan, Willem A.,et al. VLBI Imaging of Parsec-scale Radio Structures in Nearby Low-luminosity Active Galactic Nuclei[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2025,277(2):56. |
| APA | Cheng, Xiaopeng.,An, Tao.,Baan, Willem A..,Baldi, Ranieri D..,Williams-Baldwin, David R. A..,...&McHardy, Ian M..(2025).VLBI Imaging of Parsec-scale Radio Structures in Nearby Low-luminosity Active Galactic Nuclei.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,277(2),56. |
| MLA | Cheng, Xiaopeng,et al."VLBI Imaging of Parsec-scale Radio Structures in Nearby Low-luminosity Active Galactic Nuclei".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 277.2(2025):56. |
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| Cheng-2025-VLBI Imag（2235KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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