Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30490
Titolo: | The 3CR Chandra Snapshot Survey: Extragalactic Radio Sources with 0.5 < z < 1.0 | Autori: | MASSARO, Francesco Missaglia, V. Stuardi, C. Harris, D. E. Kraft, R. P. PAGGI, Alessandro LIUZZO, Elisabetta Teodorina Tremblay, G. R. Baum, S. A. O'Dea, C. P. Wilkes, B. J. Kuraszkiewicz, J. Forman, W. R. |
Data pubblicazione: | 2018 | Rivista: | THE ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | Numero: | 234 | Fascicolo: | 1 | Da pagina:: | 7 | Abstract: | This paper presents the analysis of Chandra X-ray snapshot observations of a subsample of the extragalactic sources listed in the revised Third Cambridge radio catalog (3CR), previously lacking X-ray observations and thus observed during Chandra Cycle 15. This data set extends the current Chandra coverage of the 3CR extragalactic catalog up to redshift z = 1.0. Our sample includes 22 sources consisting of 1 compact steep spectrum source, 3 quasars (QSOs), and 18 FR II radio galaxies. As in our previous analyses, here we report the X-ray detections of radio cores and extended structures (i.e., knots, hotspots, and lobes) for all sources in the selected sample. We measured their X-ray intensities in three energy ranges, soft (0.5-1 keV), medium (1-2 keV), and hard (2-7 keV), and we also performed standard X-ray spectral analysis for brighter nuclei. All radio nuclei in our sample have an X-ray counterpart. We also discovered X-ray emission associated with the eastern knot of 3CR 154, with radio hotspots in 3CR 41, 3CR 54, and 3CR 225B, and with the southern lobe of 3CR 107. Extended X-ray radiation around the nuclei 3CR 293.1 and 3CR 323 on a scale of few tens of kiloparsecs was also found. X-ray extended emission, potentially arising from the hot gas in the intergalactic medium and/or due to the high-energy counterpart of lobes, is detected for 3CR 93, 3CR 154, 3CR 292, and 3CR 323 over a scale of a few hundred kiloparsecs. Finally, this work also presents an update on the state-of-the-art of Chandra and XMM-Newton observations for the entire 3CR sample. | URI: | http://hdl.handle.net/20.500.12386/30490 | URL: | https://iopscience.iop.org/article/10.3847/1538-4365/aa8e9d | ISSN: | 0067-0049 | DOI: | 10.3847/1538-4365/aa8e9d | Bibcode ADS: | 2018ApJS..234....7M | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
Massaro_2018_ApJS_234_7.pdf | pdf editoriale | 5.83 MB | Adobe PDF | Visualizza/apri |
Page view(s)
84
controllato il 29-mar-2024
Download(s)
18
controllato il 29-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.