Enhanced Star Formation in Seyfert 2 Galaxies

Abstract

In this paper, we report our preliminary results on enhanced star formation activity in Seyfert 2 galaxies. By re-analysing the Tully-Fisher relation for Whittle(1992)'s sample and for a Seyfert 2s' sample selecting from Veron-Cetty & Veron (1996), we find that (1) almost all Seyfert 2 galaxies with circumnuclear star formation have a ratio of far infrared (FIR) to blue luminosities ($L_{FIR}/L_B$) to be larger than 1/3; (2) for Seyfert 2 galaxies with $L_{FIR}/L_B<1/3$, the Tully-Fisher relation is similar to that of the normal spiral galaxies; while for those with ${\mathrm{L}}_{\mathrm{FIR}}/{\mathrm{L}}_{\mathrm{B}}\ge 1/3$, they are significantly different from the normal ones, which confirms Whittle's suggestion of enhanced star formation activities in the circumnuclear regions of these Seyfert 2 galaxies.

9 pages, Latex, with two figures, and accepted for publication in ApSS

Cited by in corpus (3)

• Hidden Broad Line Seyfert 2 Galaxies in the CfA and 12micron Samples
• The Unified Model & Evolution of Active Galaxies: Implications from a Spectropolarimetric Study
• Seyfert 2 Galaxies with Spectropolarimetric Observations