Mathematics – Logic
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..34700231y&link_type=abstract
VizieR On-line Data Catalog: J/A+A/470/231. Originally published in: 2007A&A...470..231Y
Mathematics
Logic
Stars: Double And Multiple, Photometry: Infrared
Scientific paper
Our new near-infrared J and Ks-band images taken towards IRAS 06468-0325 revealed the presence of extended emission with very unusual and enigmatic morphology: that of a diamond-ring, that is, a ring or torus with a bright source overlaping the edge of it (not inside it). We report the discovery of this source, explore its nature, and propose possible interpretations of its morphological structure. We observed IRAS 06468-0325 obtaining optical and infrared images through IJHKs and L' filters, K-band low-resolution spectroscopy, together with millimetre line observations of CO(1-0), 13CO(2-1), C18O(2-1), and CS(2-1).
(1 data file).
Santos Nuno Cardoso
Torrelles Jose Maria
Yun Joao Lin
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