Peering into the extended X-ray emission on megaparsec scale in 3C 187
| العنوان: | Peering into the extended X-ray emission on megaparsec scale in 3C 187 |
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| المؤلفون: | V. Missaglia, Alessandro Paggi, Francesco Massaro, Stefi A. Baum, Grant R. Tremblay, Ralph Kraft, H. A. Peña-Herazo, Federica Ricci, C. Stuardi, Belinda Jane Wilkes |
| المساهمون: | Paggi, A, Massaro, F, Pena-Herazo, Ha, Missaglia, V, Ricci, F, Stuardi, C, Kraft, Rp, Tremblay, Gr, Baum, Sa, Wilkes, Bj, Paggi A., Massaro F., Pena-Herazo H.A., Missaglia V., Ricci F., Stuardi C., Kraft R.P., Tremblay G.R., Baum S.A., Wilkes B.J. |
| المصدر: | Astronomy & Astrophysics. 647:A79 |
| بيانات النشر: | EDP Sciences, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010504 meteorology & atmospheric sciences, Radio galaxy, Galaxies: active, Galaxies: individual: 3C 187, ISM: jets and outflows, X-rays: ISM, Astrophysics::High Energy Astrophysical Phenomena, Cosmic microwave background, FOS: Physical sciences, Flux, Context (language use), Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Spectral line, 0103 physical sciences, ISM [X-rays], ISM: jets and outflow, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Galaxy cluster, 0105 earth and related environmental sciences, Physics, jets and outflow [ISM], Compton scattering, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Galaxy, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), active [galaxies], individual: 3C 187 [galaxies] |
| الوصف: | Context. The diffuse X-ray emission surrounding radio galaxies is generally interpreted either as due to inverse Compton scattering of non-thermal radio-emitting electrons on the Cosmic Microwave Background (IC/CMB), or as the thermal emission arising from the hot gas of the intergalactic medium (IGM) permeating galaxy clusters hosting such galaxies, or as a combination of both. In this work we present an imaging and spectral analysis of Chandra observations for the radio galaxy 3C 187 to investigate its diffuse X-ray emission and constrain the contribution of these different physical mechanisms. Aims. The main goals of this work are: (i) to evaluate the extension of the diffuse X-ray emission from this source, (ii) to investigate the two main processes that can account for its origin - IC/CMB and thermal emission from the IGM - and (iii) to test the possibility for 3C 187 to belong to a cluster of galaxies, that can account for the observed diffuse X-ray emission. Methods. To evaluate the extension of the X-ray emission around 3C 187 we extracted surface flux profiles along and across the radio axis. We also extracted X-ray spectra in the region of the radio lobes and in the cross-cone region to estimate the contribution of the non-thermal (IC/CMB) and thermal (IGM) processes to the observed emission, making use of radio (VLA and GMRT) data to investigate the multi-wavelength emission arising from the lobes. We collected Pan-STARRS photometric data to investigate the presence of a galaxy cluster hosting 3C 187, looking for the presence of a "red sequence" in the source field in the form of a tight clustering of the galaxies in the color space... 32 pages, 13 figures, accepted for publication on A&A on 12/19/2020 |
| وصف الملف: | ELETTRONICO |
| تدمد: | 1432-0746 0004-6361 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94bad6cf916f86374d18b28e2b7104ff https://doi.org/10.1051/0004-6361/202039813 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....94bad6cf916f86374d18b28e2b7104ff |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14320746 00046361 |
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