HIGH-RESOLUTION MIDINFRARED OBSERVATIONS OF NGC-7469

Citation
Jw. Miles et al., HIGH-RESOLUTION MIDINFRARED OBSERVATIONS OF NGC-7469, The Astrophysical journal, 425(1), 1994, pp. 120000037
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
0004637X
Volume
425
Issue
1
Year of publication
1994
Part
2
Database
ISI
SICI code
0004-637X(1994)425:1<120000037:HMOON>2.0.ZU;2-V
Abstract
We present a high-resolution 11.7 mum image of the starburst/Seyfert h ybrid galaxy NGC 7469 using the Hale 5 m telescope at Palomar Observat ory.1 Our map, with diffraction limited spatial resolution of 0''.6, s hows a 3'' diameter ring of emission around an unresolved nucleus. The map is similar to the VLA 6 cm map of this galaxy made with 0''.4 res olution by Wilson et al. (1991). About half of the mid-infrared flux i n our map emerges from the unresolved nucleus. We also present spatial ly resolved low resolution spectra that show that the 11.3 mum PAH fea ture comes from the circumnuclear ring but not from the nucleus of the galaxy.