1994A&A...292L...9A


Query : 1994A&A...292L...9A

1994A&A...292L...9A - Astronomy and Astrophysics, volume 292L9-12 (1994/12-2)

Thermal infrared imaging of GGD27-IRS. The active pre-main sequence star revealed.

ASPIN C., PUXLEY P.J., BLANCO P.R., PINA R.K., PICKUP D.A., PATERSON M.J., SYLVESTER J., LAIRD D.C., BRIDGER A., DALY P.N. and GRIFFIN J.L.

Abstract (from CDS):

We present near-IR (NIR) 2.2-4.7µm imaging of the core region of the pre-main sequence bipolar CO outflow source GGD27-IRS. Indirect evidence from earlier imaging polarimetry and long-slit spectroscopy suggested that the true young active star in the region, GGD27-ILL, is heavily embedded and completely obscured even at 2 µm. Our new 4.7µm images directly detect this source for the first time locating it at 2.0" west, 1.3" south of the bright NIR source IRS2. This position is 0.2" from the position derived from our earlier NIR polarization maps. New mid-IR images of the core region show three point-like sources which are identified as GGD27-ILL, IRS7 and IRS8. We discuss the morphological composition of the core region in light of our discovery.

Abstract Copyright: ∼

Journal keyword(s): pre-main sequence stars - circumstellar matter - star formation: NAME GGD 27 IRS

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 - 2026
#notes
1 [SFR97] 4 IR 18 19 11.75 -20 47 26.2           ~ 2 0
2 NAME HH 80-81 IRS HII 18 19 11.8 -20 47 35           ~ 157 0
3 NAME GGD 27-ILL SFR 18 19 12.00 -20 47 31.1           ~ 16 1
4 [SFR97] 3 IR 18 19 12.02 -20 47 33.9           ~ 4 0
5 NAME GGD 27 IRS RNe 18 19 12.0870647616 -20 47 50.901137556           ~ 26 1

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