Academic Journal
Mrk 1239: a Type-2 Counterpart of Narrow-line Seyfert-1?
| العنوان: | Mrk 1239: a Type-2 Counterpart of Narrow-line Seyfert-1? |
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| المؤلفون: | Pan, Xiang, Zhou, Hongyan, Yang, Chenwei, Sun, Luming, Smith, Paul S., Ji, Tuo, Jiang, Ning, Jiang, Peng, Liu WJ(刘文娟), Lu, Honglin, Shi, Xiheng, Dai, Xuejie, Zhang, Shaohua |
| بيانات النشر: | IOP PUBLISHING LTD |
| سنة النشر: | 2021 |
| المجموعة: | Yunnan Observatories: YNAO OpenIR (Chinese Academy of Sciences, CAS) / 中国科学院云南天文台机构知识库 |
| مصطلحات موضوعية: | 天文学, 天文学::天体物理学, 天文学::天体物理学::高能天体物理学, 天文学::星系与宇宙学, 理学, 理学::天文学, Astronomy & Astrophysics, DIGITAL SKY SURVEY, ACTIVE GALACTIC NUCLEI, 1 GALAXIES, INTERSTELLAR EXTINCTION, OPTICAL POLARIZATION, BLACK-HOLES, EVOLUTION, SPECTRUM, QUASARS, SAMPLE |
| الوصف: | We present new spectrophotometric and spectropolarimetric observations of Mrk 1239, one of the 8 prototypes that defines type-1 narrow-line Seyfert galaxies (NLS1s). Unlike the other typical NLS1s though, a high degree of polarization (P similar to 5.6%) and red optical-IR (g-W (4) = 12.35) colors suggest that Mrk 1239 is more similar to type-2 active galactic nuclei like NGC 1068. Detailed analysis of spectral energy distribution in the UV-optical-IR yields two components from the nucleus: a direct and transmitted component that is heavily obscured (E ( B-V ) approximate to 1.6), and another indirect and scattered one with mild extinction (E ( B-V ) similar to 0.5). Such a two-light-paths scenario is also found in previous reports based on the X-ray data. Comparison of emission lines and the detection of He i*lambda 10830 BAL at [-3000, -1000] km s(-1) indicates that the obscuring clouds are at physical scale between the sublimation radius and that of the narrow emission line regions. The potential existence of powerful outflows is found as both the obscurer and scatterer are outflowing. Similar to many other type-2s, jet-like structure in the radio band is found in Mrk 1239, perpendicular to the polarization angle, suggesting polar scattering. We argue that Mrk 1239 is very probably a type-2 counterpart of NLS1s. The identification of 1 out of 8 prototype NLS1s as a type-2 counterpart implies that there can be a substantial amount of analogs of Mrk 1239 misidentified as type-1s in the optical band. Properties of these misidentified objects are going to be explored in our future works. |
| نوع الوثيقة: | article in journal/newspaper report |
| اللغة: | English |
| Relation: | ASTROPHYSICAL JOURNAL; http://ir.ynao.ac.cn/handle/114a53/24339; http://ir.ynao.ac.cn/handle/114a53/24340; http://apps.webofknowledge.com/InboundService.do?customersID=LinksAMR&mode=FullRecord&IsProductCode=Yes&product=WOS&Init=Yes&Func=Frame&DestFail=http%3A%2F%2Fwww.webofknowledge.com&action=retrieve&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&SID=7CThMbD67DOhVdk1gV3&UT=WOS%3A000651648100001 |
| DOI: | 10.3847/1538-4357/abf148 |
| الاتاحة: | http://ir.ynao.ac.cn/handle/114a53/24339 http://ir.ynao.ac.cn/handle/114a53/24340 http://apps.webofknowledge.com/InboundService.do?customersID=LinksAMR&mode=FullRecord&IsProductCode=Yes&product=WOS&Init=Yes&Func=Frame&DestFail=http%3A%2F%2Fwww.webofknowledge.com&action=retrieve&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&SID=7CThMbD67DOhVdk1gV3&UT=WOS%3A000651648100001 https://doi.org/10.3847/1538-4357/abf148 |
| رقم الانضمام: | edsbas.2D95F001 |
| قاعدة البيانات: | BASE |
| DOI: | 10.3847/1538-4357/abf148 |
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