We present a radio and optical study of the double-double radio galaxy J1328+2752 based on new low-frequency GMRT observations and SDSS data. The radio data were used to investigate the morphology and to perform a spectral index analysis. In this source we find that the inner double is misaligned by ∼30∘ from the axis of the outer diffuse structure. The SDSS spectrum shows that the central component has double-peaked line profiles with different emission strengths. The average velocity off-set of the two components is 235±10.5 km s−1. The misaligned radio morphology along with the double-peaked emission lines indicate that this source is a potential candidate binary supermassive black hole. This study further supports mergers as a possible explanation for repeated jet activity in radio sources.
@article{arxiv.1612.06452,
title = {Tale of J1328+2752: a misaligned double-double radio galaxy hosted by a binary black-hole?},
author = {S. Nandi and M. Jamrozy and R. Roy and J. Larsson and D. J. Saikia and M. Baes and M. Singh},
journal= {arXiv preprint arXiv:1612.06452},
year = {2017}
}
Comments
6 pages, 4 figures, Accepted for publication in MNRAS Letters