The rare extended radio-loud narrow-line Seyfert 1 galaxy SDSS J1030+5516 at high resolution. (arXiv:1904.07540v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Gabanyi_K/0/1/0/all/0/1">Krisztina &#xc9;va Gab&#xe1;nyi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Frey_S/0/1/0/all/0/1">S&#xe1;ndor Frey</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Veres_P/0/1/0/all/0/1">P&#xe9;ter Veres</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Moor_A/0/1/0/all/0/1">Attila Mo&#xf3;r</a>

Recently, Rakshit et al. (2018) reported the discovery of SDSS
J103024.95$+$551622.7, a radio-loud narrow-line Seyfert 1 galaxy having a $sim
100$ kpc scale double-lobed radio structure. Here we analyse archival radio
interferometric imaging data taken with the Very Large Array (VLA) at 5 GHz,
and with the Very Long Baseline Array (VLBA) at 4.3 and 7.6 GHz. Two hotspots
and a compact core are detected with the VLA at arcsec scale, while a single
milliarcsec-scale compact radio core is seen with the highest resolution VLBA
observations. The Fermi Large Area Telescope did not detect $gamma$-ray
emission at the position of this source. In the mid-infrared, the Wide-field
Infrared Survey Explorer satellite light curve, covering more than 7 years and
including the most recent data points, hints on flux density variability at 3.4
$mu$m. Our findings support the notion that this source is a young version of
Fanaroff-Riley type II radio galaxies.

Recently, Rakshit et al. (2018) reported the discovery of SDSS
J103024.95$+$551622.7, a radio-loud narrow-line Seyfert 1 galaxy having a $sim
100$ kpc scale double-lobed radio structure. Here we analyse archival radio
interferometric imaging data taken with the Very Large Array (VLA) at 5 GHz,
and with the Very Long Baseline Array (VLBA) at 4.3 and 7.6 GHz. Two hotspots
and a compact core are detected with the VLA at arcsec scale, while a single
milliarcsec-scale compact radio core is seen with the highest resolution VLBA
observations. The Fermi Large Area Telescope did not detect $gamma$-ray
emission at the position of this source. In the mid-infrared, the Wide-field
Infrared Survey Explorer satellite light curve, covering more than 7 years and
including the most recent data points, hints on flux density variability at 3.4
$mu$m. Our findings support the notion that this source is a young version of
Fanaroff-Riley type II radio galaxies.

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