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        Radio-loud AGN in the first LoTSS data release: The lifetimes and environmental impact of jet-driven sources

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        1811.07943v1.pdf (PDF, 5Mb)
        Author
        Hardcastle, M. J.
        Williams, W. L.
        Best, P. N.
        Croston, J. H.
        Duncan, K. J.
        Rottgering, H. J. A.
        Sabater, J.
        Shimwell, T. W.
        Tasse, C.
        Callingham, J. R.
        Cochrane, R. K.
        Gasperin, F. de
        Gurkan, G.
        Jarvis, M. J.
        Mahatma, V.
        Miley, G. K.
        Mingo, B.
        Mooney, S.
        Morabito, L. K.
        O'Sullivan, S. P.
        Prandoni, I.
        Shulevski, A.
        Smith, D. J. B.
        Attention
        2299/21038
        Abstract
        We constructed a sample of 23,344 radio-loud active galactic nuclei (RLAGN) from the catalogue derived from the LOFAR Two-Metre Sky Survey (LoTSS) survey of the HETDEX Spring field. Although separating AGN from star-forming galaxies remains challenging, the combination of spectroscopic and photometric techniques we used gives us one of the largest available samples of candidate RLAGN. We used the sample, combined with recently developed analytical models, to investigate the lifetime distribution of RLAGN. We show that large or giant powerful RLAGN are probably the old tail of the general RLAGN population, but that the low-luminosity RLAGN candidates in our sample, many of which have sizes $
        Publication date
        2018-11-19
        Published in
        Astronomy & Astrophysics
        Published version
        https://doi.org/10.1051/0004-6361/201833893
        Other links
        http://hdl.handle.net/2299/21038
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