Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...292l...9a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 292, no. 2, p. L9-L12
Astronomy and Astrophysics
Astronomy
15
Carbon Monoxide, Gas Flow, Infrared Astronomy, Near Infrared Radiation, Nebulae, Pre-Main Sequence Stars, Star Formation, Stellar Envelopes, Astronomical Photometry, Cameras, Infrared Imagery, Infrared Telescopes, Morphology, Spectral Energy Distribution
Scientific paper
We present near-IR (NIR) 2.2-4.7 micrometer 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 micrometers. Our new 4.7 micrometer images directly detect this source for the first time locating it at 2.0 sec west, 1.3 sec south of the bright NIR source IRS2. This position is 0.2 sec 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.
Aspin Colin
Blanco Philip R.
Bridger Alan
Daly Philip N.
Griffin Lora J.
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