The host galaxy of the γ-ray-emitting narrow-line Seyfert 1 galaxy PKS 1502+036

Journal
Date Issued
2018
Author(s)
•
Acosta-Pulido, J. A.
•
•
•
•
•
Ramos Almeida, C.
DOI
Abstract
The detection of γ-ray emission from narrow-line Seyfert 1 galaxies (NLSy1) has challenged the idea that large black hole (BH) masses (≥108 M☉) are needed to launch relativistic jets. We present near-infrared imaging data of the γ-ray-emitting NLSy1 PKS 1502+036 obtained with the Very Large Telescope. Its surface brightness profile, extending to ∼20 kpc, is well described by the combination of a nuclear component and a bulge with a Sérsic index n = 3.5, which is indicative of an elliptical galaxy. A circumnuclear structure observed near PKS 1502+036 may be the result of galaxy interactions. A BH mass of ∼7 × 108 M☉ has been estimated by the bulge luminosity. The presence of an additional faint disc component cannot be ruled out with the present data, but this would reduce the BH mass estimate by only ∼30 per cent. These results, together with analogous findings obtained for FBQS J1644+2619, indicate that the relativistic jets in γ-ray-emitting NLSy1 are likely produced by massive black holes at the centre of elliptical galaxies.
Volume
478
Issue
1
Start page
L66
Uri
Url
Issn Identifier
0035-8711
Ads BibCode
2018MNRAS.478L..66D
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

1804.10220.pdf

Description
postprint
Size

1.23 MB

Format

Adobe PDF

Checksum (MD5)

40d0d86cf0ac418685f3c81aa70829b2

Loading...
Thumbnail Image
Name

sly072.pdf

Description
Pdf editoriale
Size

3.66 MB

Format

Adobe PDF

Checksum (MD5)

9f8c0a37588d6b10096993829c66c90d