SDSS J143244.91+301435.3: a link between radio-loud narrow-line Seyfert 1 galaxies and compact steep-spectrum radio sources?

Caccianiga, A.; Antón, Sonia; Ballo, L.; Dallacasa, D.; Della Ceca, R.; Fanali, R.; Foschini, L.; S. Hamilton, Timothy; Kraus, A.; Maccacaro, T.; H. Mack, K.-; J. M. Marchã, M.; Paulino-Afonso, Ana; Sani, E.; Severgnini, P.

doi:10.1093/mnras/stu508

Public

SDSS J143244.91+301435.3: a link between radio-loud narrow-line Seyfert 1 galaxies and compact steep-spectrum radio sources?

Published in Monthly Notices of the Royal Astronomical Society • Apr 24, 2014

Authors:

A. Caccianiga

Sonia Antón

L. Ballo

Abstract

We present SDSS J143244.91+301435.3, a new case of a radio-loud narrow-line Seyfert 1 (RL NLS1) with a relatively high radio power (P1.4 GHz = 2.1 × 1025 W Hz−1) and large radio-loudness parameter (R1.4 = 600 ± 100). The radio source is compact with a linear size below ∼1.4 kpc but, in contrast to m...

Subject

Physics

Astrophysics

Active galactic nucleus

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