Fig.2: Examples of submillimeter spectra and images of a protostar discovered in the extreme outer Galaxy with ALMA. (IMAGE)

Niigata University

Fig.2: Examples of submillimeter spectra and images of a protostar discovered in the extreme outer Galaxy with ALMA.

Caption

Top: Radio spectrum of a protostar in the extreme outer Galaxy discovered with ALMA. Bottom: Distributions of radio emissions from the protostar. Emissions from dust, formaldehyde (H2CO), ethynylradical (CCH), carbon monosulfide (CS), sulfur monoxide (SO), silicon monoxide (SiO), acetonitrile (CH3CN), formamide (NH2CHO), propanenitrile (C2H5CN), methyl formate (HCOOCH3), ethanol (C2H5OH), acetaldehyde (CH3CHO), deuterated water (HDO), and methanol (CH3OH) are shown as examples. In the bottom right panel, an infrared 2-color composite image of the surrounding region is shown (red: 2.16 μm and blue: 1.25 μm, based on 2MASS data).

Credit

ALMA (ESO/NAOJ/NRAO), T. Shimonishi (Niigata University)

Usage Restrictions

The image may only be used with appropriate caption or credit.

License

Original content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.