2004A&A...423L..13C


Query : 2004A&A...423L..13C

2004A&A...423L..13C - Astronomy and Astrophysics, volume 423, L13-16 (2004/8-4)

Nuclear star formation in the quasar PG1126-041 from adaptive optics assisted spectroscopy.

CRESCI G., MAIOLINO R., MARCONI A., MANNUCCI F. and GRANATO G.L.

Abstract (from CDS):

We present adaptive optics assisted spectroscopy of three quasars obtained with NACO at VLT. The high angular resolution achieved with the adaptive optics (∼0.08''), joined to the diagnostic power of near-IR spectroscopy, allow us to investigate the properties of the innermost 100pc of these quasars. In the quasar with the best adaptive optics correction, PG1126-041, we spatially resolve the Paα emission within the nuclear 100pc. The comparison with higher excitation lines suggests that the narrow Paα emission is due to nuclear star formation. The inferred intensity of the nuclear star formation (13M/yr) may account for most of the far-IR luminosity observed in this quasar.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - quasars: emission lines - galaxies: starburst - techniques: high angular resolution - instrumentation: adaptive optics

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 77 GiP 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4444 2
2 [VV96] J091609.5-621929 Sy1 09 16 09.3662148312 -62 19 29.562130128   12.51 12.26 11.5   ~ 133 0
3 Mrk 1298 Sy1 11 29 16.7288400936 -04 24 07.246460520   14.97 14.61     ~ 194 1
4 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1144 2
5 Mrk 304 Sy1 22 17 12.2637639888 +14 14 20.917852980   15.02 14.66     ~ 344 0

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2023.04.01-19:33:06

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