Unveiling the Mysterious Infrared Source IRAS 15099-5856

Details Unveiling the Mysterious Infrared Source IRAS 15099-5856 Unveiling the Mysterious Infrared Source IRAS 15099-5856

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atnf.prop.1245k&link_type=abstract

ATNF proposal M286, Semester: April, 2008

Other

Galactic, Mopra

Scientific paper

We have recently discovered a mysterious, bright mid-infrared object in the Galactic plane using the infrared camera aboard the AKARI satellite. This object, IRAS 15099-5856, is composed of a bright central compact source, knots and spurs surrounding it, and several extended arc-like filaments. It has only been detected at mid-infrared wavelengths. There is no counterpart in other waveband, except possibly two 19th mag. 2-micron point sources. We have considered post-AGB stars with thick envelopes, highly-embedded class 0 protostars, and infrared-luminous galaxies to explain these facts, but none of them seem to adequately explain the observed mid-infrared properties. IRAS 15099-5856 is potentially a unique new class of source. In order to unveil the hidden and mysterious nature of this object, we propose to carry out Mopra molecular line observations, to search for signatures that may provide a clue as to the source's origin.

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