The host galaxy of the broad absorption line QSO PG 1700+518 and its ring galaxy companion: Nicmos 1.6 micron imaging

Citation
Dc. Hines et al., The host galaxy of the broad absorption line QSO PG 1700+518 and its ring galaxy companion: Nicmos 1.6 micron imaging, ASTROPHYS J, 512(1), 1999, pp. 140-144
Citations number
34
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
512
Issue
1
Year of publication
1999
Part
1
Pages
140 - 144
Database
ISI
SICI code
0004-637X(19990210)512:1<140:THGOTB>2.0.ZU;2-5
Abstract
The 1.6 mu m Near Infrared Camera and Multiobject Spectrometer image of the broad absorption line QSO PG 1700+518 clearly resolves the QSO host galaxy and a ringlike companion. The companion is most likely a ring galaxy produ ced in a collision with the QSO galaxy similar to 5 x 10(7) yr ago. The mor phology of the PG 1700+518 system is very similar to IRAS 04505-2958 (Boyce et al. 1996). Both objects were identified in a sample of eight QSOs selec ted by "warm" far-IR colors and extreme IR luminosities (Low et al. 1988). All eight QSOs show signs of strong interaction, and the presence of two he ad-on colliding systems in this sample may suggest that small impact parame ters favor the energizing of IR-luminous QSOs.