  Double radio lobes are generally believed to be produced by active nuclei of
elliptical galaxies. However, several double-lobed radio sources have been
solidly found to be associated with spiral galaxies. By cross-matching
$\sim9\times10^5$ spiral galaxies selected from the Sloan Digital Sky Survey
DR8 data with the full 1.4-GHz radio source catalogs of NRAO VLA Sky Survey and
Faint Images of Radio Sky at Twenty-centimeters, we identify three new spiral
galaxies: J0326$-$0623, J1110+0321 and J1134+3046 that produce double radio
lobes, and five double-lobed spirals previously known. By combining the newly
discovered and all the other known cases in literature, we confirm the relation
that more massive spirals could produce more powerful large-scale radio jets.
We find that most of these spiral galaxies are located in a galaxy group or a
poor cluster, in which the environment is denser than in the field, and about
half of them are the central brightest galaxies in their parent system. We
therefore suggest that the environment is one of the key factors for a spiral
to produce double radio lobes.

Astrophysics of Galaxies