COMP2CAT: hunting compact double radio sources in the local Universe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00110294" target="_blank" >RIV/00216224:14310/19:00110294 - isvavai.cz</a>

Výsledek na webu

<a href="https://arxiv.org/abs/1905.02212" target="_blank" >https://arxiv.org/abs/1905.02212</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201935104" target="_blank" >10.1051/0004-6361/201935104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

COMP2CAT: hunting compact double radio sources in the local Universe

Popis výsledku v původním jazyce

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 &lt; 0.15, and (iii) projected linear sizes smaller than 60 kpc. With radio luminosities at 1.4 GHz 10(38) less than or similar to L-1.4 less than or similar to 10(41) 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 greater than or similar to M-r greater than or similar to -24), red, early-type galaxies with black hole masses in the range 10(7.5) less than or similar to M-BH less than or similar to 10(9.5) M-circle dot. 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 similar to 47% complete at z &lt; 0.15, can potentially be used to clarify the role of compact double sources in the general evolutionary scheme of radio galaxies.

Název v anglickém jazyce

COMP2CAT: hunting compact double radio sources in the local Universe

Popis výsledku anglicky

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 &lt; 0.15, and (iii) projected linear sizes smaller than 60 kpc. With radio luminosities at 1.4 GHz 10(38) less than or similar to L-1.4 less than or similar to 10(41) 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 greater than or similar to M-r greater than or similar to -24), red, early-type galaxies with black hole masses in the range 10(7.5) less than or similar to M-BH less than or similar to 10(9.5) M-circle dot. 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 similar to 47% complete at z &lt; 0.15, can potentially be used to clarify the role of compact double sources in the general evolutionary scheme of radio galaxies.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ASTRONOMY & ASTROPHYSICS

ISSN

1432-0746

e-ISSN

—

Svazek periodika

627

Číslo periodika v rámci svazku

JUL 8 2019

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

21

Strana od-do

1-21

Kód UT WoS článku

000474334400001

EID výsledku v databázi Scopus

2-s2.0-85069438256