Finding the Central Mass of the L1527 Protostar using CARMA Interferometer Data
Abstract
Determining the central masses of protostars has been difficult, in part because of confusion from outflow structure. However, high spatial and spectral resolution data are key to determining the gravity field and hence the central mass. The goal of this investigation is to produce realistic radiative transfer with collapse models that can be compared directly with interferometric velocity channel maps. We perform a case study of the protostar L1527 in Taurus using 12CO(1-0), 13CO(1-0), and C18O(2-1) data from the CARMA interferometer. The central mass is about 0.1 Msun; significantly larger masses are ruled out by the data. There is also evidence for large scale turbulent motion arising from cold foreground gas through the detection of blue-shifted self-absorption in 12CO and 13CO.
- Publication:
-
American Astronomical Society Meeting Abstracts #221
- Pub Date:
- January 2013
- Bibcode:
- 2013AAS...22111703T