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COMP2CAT: hunting compact double radio sources in the local Universe

COMP2CAT: hunting compact double radio sources in the local Universe
COMP2CAT: hunting compact double radio sources in the local Universe
We present a catalog of compact double radio galaxies (hereafter COMP2CAT) listing 43 edge-brightened radio sources whose projected linear size does not exceed 60 kpc, the typical size of their host galaxies. This is the fifth in a series of radio source catalogs recently created, namely: FRICAT, FRIICAT, FR0CAT, and WATCAT, each of which focuses on a different class of radio galaxies. The main aim of our analysis is to attain a better understanding of sources with intermediate morphologies between FR IIs and FR 0s. COMP2CAT sources were selected from an existing catalog of radio sources based on NVSS, FIRST and SDSS observations because they have (i) edge-brightened morphologies typical of FR IIs, (ii) redshifts z <  0.15, and (iii) projected linear sizes smaller than 60 kpc. With radio luminosities at 1.4 GHz 1038 ≲ L1.4 ≲ 1041 erg s−1, COMP2CAT sources appear as the low radio luminosity tail of FR IIs. However, their host galaxies are indistinguishable from those of large-scale radio sources: they are luminous (−21 ≳ Mr ≳ −24), red, early-type galaxies with black hole masses in the range 107.5 ≲ MBH ≲ 109.5 M⊙. Moreover, all but one of the COMP2CAT sources are optically classifiable as low-excitation radio galaxies, in agreement with being the low radio luminosity tail of FR Is and FR IIs. This catalog of compact double sources, which is ∼47% complete at z <  0.15, can potentially be used to clarify the role of compact double sources in the general evolutionary scheme of radio galaxies.
0004-6361
1-21
Jimenez-Gallardo, A.
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Massaro, F.
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Capetti, A.
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Prieto, M.A.
41837606-e031-4a15-8a33-f480e364f923
Paggi, A.
df89f3aa-4bb4-4bd1-895c-58dbde01fbc2
Baldi, Ranieri Diego
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Grossova, R.
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Ostorero, L.
75ca53f0-834f-4a04-af2d-3839f3a68d83
Siemiginowska, A.
56ff624a-15bf-42f3-928f-4b5af590cc45
Viada, S.
d97a10c9-46d9-4ef1-9910-58348d416a5f
Jimenez-Gallardo, A.
f950b068-3851-4c72-9a86-861215ef1a7f
Massaro, F.
12bea765-ee73-4af8-bf94-ebe312f9840e
Capetti, A.
737dab04-ad83-4d07-ba8b-cb9e07de22e8
Prieto, M.A.
41837606-e031-4a15-8a33-f480e364f923
Paggi, A.
df89f3aa-4bb4-4bd1-895c-58dbde01fbc2
Baldi, Ranieri Diego
c416ed4c-5d1c-48ee-989c-3a8ab38cd124
Grossova, R.
97ad448f-37ed-4cbc-86ac-3e8fb986d695
Ostorero, L.
75ca53f0-834f-4a04-af2d-3839f3a68d83
Siemiginowska, A.
56ff624a-15bf-42f3-928f-4b5af590cc45
Viada, S.
d97a10c9-46d9-4ef1-9910-58348d416a5f

Jimenez-Gallardo, A., Massaro, F., Capetti, A., Prieto, M.A., Paggi, A., Baldi, Ranieri Diego, Grossova, R., Ostorero, L., Siemiginowska, A. and Viada, S. (2019) COMP2CAT: hunting compact double radio sources in the local Universe. Astronomy & Astrophysics, 627, 1-21, [A108]. (doi:10.1051/0004-6361/201935104).

Record type: Article

Abstract

We present a catalog of compact double radio galaxies (hereafter COMP2CAT) listing 43 edge-brightened radio sources whose projected linear size does not exceed 60 kpc, the typical size of their host galaxies. This is the fifth in a series of radio source catalogs recently created, namely: FRICAT, FRIICAT, FR0CAT, and WATCAT, each of which focuses on a different class of radio galaxies. The main aim of our analysis is to attain a better understanding of sources with intermediate morphologies between FR IIs and FR 0s. COMP2CAT sources were selected from an existing catalog of radio sources based on NVSS, FIRST and SDSS observations because they have (i) edge-brightened morphologies typical of FR IIs, (ii) redshifts z <  0.15, and (iii) projected linear sizes smaller than 60 kpc. With radio luminosities at 1.4 GHz 1038 ≲ L1.4 ≲ 1041 erg s−1, COMP2CAT sources appear as the low radio luminosity tail of FR IIs. However, their host galaxies are indistinguishable from those of large-scale radio sources: they are luminous (−21 ≳ Mr ≳ −24), red, early-type galaxies with black hole masses in the range 107.5 ≲ MBH ≲ 109.5 M⊙. Moreover, all but one of the COMP2CAT sources are optically classifiable as low-excitation radio galaxies, in agreement with being the low radio luminosity tail of FR Is and FR IIs. This catalog of compact double sources, which is ∼47% complete at z <  0.15, can potentially be used to clarify the role of compact double sources in the general evolutionary scheme of radio galaxies.

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COMP2CAT hunting compact double radio sources in the local Universe - Accepted Manuscript
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Accepted/In Press date: 13 March 2019
e-pub ahead of print date: 8 July 2019
Published date: July 2019
Additional Information: arXiv is AM

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Local EPrints ID: 433065
URI: http://eprints.soton.ac.uk/id/eprint/433065
ISSN: 0004-6361
PURE UUID: df90cafd-c3dc-46ff-a816-8493181c0f4c

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Date deposited: 07 Aug 2019 16:30
Last modified: 16 Sep 2019 16:31

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Contributors

Author: A. Jimenez-Gallardo
Author: F. Massaro
Author: A. Capetti
Author: M.A. Prieto
Author: A. Paggi
Author: R. Grossova
Author: L. Ostorero
Author: A. Siemiginowska
Author: S. Viada

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