The discovery based on GLIMPSE data of a protostar driving a bipolar outflow

Details The discovery based on GLIMPSE data of a protostar driving a bipolar outflow The discovery based on GLIMPSE data of a protostar driving a bipolar outflow

2012-01-17

arxiv.org/abs/1201.3453v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

6 pages, 4 figures, accepted for publication in Astronomy & Astrophysics

Scientific paper

10.1051/0004-6361/201117858

We report the discovery based on GLIMPSE data of a proto-stellar system driving a bipolar outflow . The bipolar outflow closely resembles the shape of an hourglass in the infrared. The total luminosity of L_total=5507 L_sun, derived from IRAS fluxes, indicates the ongoing formation of a massive star in this region. The spectral energy distribution (SED) of the driving source is fitted with an online SED fitting tool, which results in a spectral index of about 1.2. This, along with the presence of a bipolar outflow, suggests the detection of a Class I protostar. The driving source indicates prominent infrared excesses in color-color diagrams based on archived 2MASS and GLIMPSE data, which is in line with an early evolutionary stage of the system.

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