Uncovering the host galaxy of the γ-ray-emitting narrow-line Seyfert 1 galaxy FBQS J1644+2619

The discovery of γ-ray emission from radio-loud narrow-line Seyfert 1 (NLSy1) galaxies has questioned the need for large black hole masses ( ≳ 10⁸ M_☉) to launch relativistic jets. We present near-infrared data of the γ-ray-emitting NLSy1 FBQS J1644+2619 that were collected using the camera CIRCE (Canarias InfraRed Camera Experiment) at the 10.4-m Gran Telescopio Canarias to investigate the structural properties of its host galaxy and to infer the black hole mass. The 2D surface brightness profile is modelled by the combination of a nuclear and a bulge component with a Sérsic profile with index n = 3.7, indicative of an elliptical galaxy. The structural parameters of the host are consistent with the correlations of effective radius and surface brightness against absolute magnitude measured for elliptical galaxies. From the bulge luminosity, we estimated a black hole mass of (2.1 ± 0.2) × 10⁸ M_☉, consistent with the values characterizing radio-loud active galactic nuclei.

Volume

469

Issue

1

Start page

L11

Uri

http://hdl.handle.net/20.500.12386/27088

Url

https://academic.oup.com/mnrasl/article/469/1/L11/3077180

Issn Identifier

0035-8711

Ads BibCode

2017MNRAS.469L..11D

Rights

open.access

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slx042.pdf

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Size

2 MB

Format

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Checksum (MD5)

8e304fe199115855c7d184cfee378a47

Name

1703.07367.pdf

Description

postprint

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380.33 KB

Format

Adobe PDF

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Uncovering the host galaxy of the γ-ray-emitting narrow-line Seyfert 1 galaxy FBQS J1644+2619

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