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| Paper: |
Chemistry and the “Prestellar” Nature of the IRDC G028.23-00.19 |
| Volume: |
476, New Trends in Radio Astronomy in the ALMA Era |
| Page: |
337 |
| Authors: |
Sanhueza, P.; Jackson, J. M.; Foster, J. B. |
| Abstract: |
In order to study the chemistry and evaluate the prestellar nature of the
infrared dark cloud (IRDC) G028.23-00.19, we observed it in
several molecular lines at 3.3 mm with CARMA. This IRDC
hosts one of the most massive prestellar clumps known
(650 \Msun). Our observations reveal intriguing SiO and CH3OH
emission that may indicate active star formation in the northern and
southern regions of the IRDC, unassociated with the massive prestellar
clump located in its center (MM1). We suggest that MM1 is the prime example
of a prestellar clump, being in a very early stage of evolution. |
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