Hidden Treasures in the Unknown 3CR Extragalactic Radio Sky: A Multiwavelength Approach
| العنوان: | Hidden Treasures in the Unknown 3CR Extragalactic Radio Sky: A Multiwavelength Approach |
|---|---|
| المؤلفون: | Barbara Balmaverde, A. Maselli, Stefi A. Baum, A. Jimenez-Gallardo, Juan P. Madrid, F. Ricci, C. Stuardi, V. Missaglia, Elisabetta Liuzzo, Grant R. Tremblay, R. P. Kraft, Belinda Jane Wilkes, C. P. O'Dea, Alessandro Paggi, Alessandro Capetti, Francesco Massaro, D. E. Harris, William R. Forman, Joanna Kuraszkiewicz, Eleonora Sani |
| المساهمون: | Missaglia V., Massaro F., Liuzzo E., Paggi A., Kraft R.P., Forman W.R., Jimenez-Gallardo A., Madrid J.P., Ricci F., Stuardi C., Wilkes B.J., Baum S.A., O'Dea C.P., Kuraszkiewicz J., Tremblay G.R., Maselli A., Capetti A., Sani E., Balmaverde B., Harris D.E., Missaglia, V, Massaro, F, Liuzzo, E, Paggi, A, Kraft, Rp, Forman, Wr, Jimenez-Gallardo, A, Madrid, Jp, Ricci, F, Stuardi, C, Wilkes, Bj, Baum, Sa, O'Dea, Cp, Kuraszkiewicz, J, Tremblay, Gr, Maselli, A, Capetti, A, Sani, E, Balmaverde, B, Harris, De |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, High Energy Astrophysical Phenomena (astro-ph.HE), X-ray astronomy, Active galactic nucleus, media_common.quotation_subject, Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, Active galaxies (17), Space and Planetary Science, Sky, Radio continuum emission (1340), X-ray astronomy (1810), Astrophysics - High Energy Astrophysical Phenomena, media_common |
| الوصف: | We present the analysis of multi-wavelength observations of seven extragalactic radio sources, listed as unidentified in the Third Cambridge Revised Catalog (3CR). X-ray observations, performed during Chandra Cycle 21, were compared to VLA, WISE and Pan-STARRS observations in the radio, infrared and optical bands, respectively. All sources in this sample lack a clear optical counterpart, and are thus missing their redshift and optical classification. In order to confirm the X-ray and infrared radio counterparts of core and extended components, here we present for the first time radio maps obtained manually reducing VLA archival data. As in previous papers on the Chandra X-ray snapshot campaign, we report X-ray detections of radio cores and two sources, out of the seven presented here, are found to be members of galaxy clusters. For these two cluster sources (namely, 3CR 409 and 3CR 454.2), we derived surface brightness profiles in four directions. For all seven sources, we measured X-ray intensities of the radio sources and we also performed standard X-ray spectral analysis for the four sources (namely, 3CR 91, 3CR 390, 3CR 409 and 3CR 428) with the brightest nuclei (more than 400 photons in the 2'' nuclear region). We also detected extended X-ray emission around 3CR 390 and extended X-ray emission associated with the northern jet of 3CR 158. This paper represents the first attempt to give a multi-wavelength view of the unidentified radio sources listed in the 3CR catalog. Comment: 18 pages, 19 figures, 5 tables, accepted for publication on ApJS |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45685ca0a14f4a4c03692d8c49cb3afe http://hdl.handle.net/2318/1822745 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....45685ca0a14f4a4c03692d8c49cb3afe |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |