Studying the Outflow-Core Interaction with ALMA Cycle 1 Observations of the HH46/47 Molecular Outflow
Abstract
We present preliminary analysis of ALMA cycle 1 12m array ^(12)CO /^(13)CO /C^(18)O data of the HH 46/47 molecular outflow. ^(13)CO and C^(18)O trace relatively denser outflow material than ^(12)CO and allow us to trace the outflow to lower velocities than what it possible using only the ^(12)CO emission. Interestingly, the cavity wall of the red lobe can be seen at velocity as low as 0.2 km/s. Using C^(18)O, we are now able to estimate the optical depth of ^(13)CO, and then use the corrected ^(13)CO emission to further and better correct the ^(12)CO emission and estimate the mass, momentum, and kinetic energy of the outflow. Moreover, C^(18)O reveals a flattened rotational structure at the center, likely to be a rotational envelope infalling onto an inner Keplerian disk.
Additional Information
© 2015 Astronomical Society of the Pacific.Attached Files
Published - 499-0243.pdf
Files
499-0243.pdf
Additional details
Identifiers
- Eprint ID
- 64772
- Resolver ID
- CaltechAUTHORS:20160225-141819585
Dates
- Created
-
2016-02-25Created from EPrint's datestamp field
- Updated
-
2019-11-01Created from EPrint's last_modified field
Caltech Custom Metadata
- Series Name
- Astronomical Society of the Pacific Conference Series
- Series Volume or Issue Number
- 499