We identify 45 protostellar outflows in CO maps of the Orion A giant molecular cloud from the CARMA-NRO Orion survey. Our sample includes 11 newly detected outflows. We measure the mass and energetics of the outflows, including material at low-velocities by correcting for cloud contributions. The total momentum and kinetic energy injection rates of outflows is comparable to the turbulent dissipation rate of the cloud. We also compare the outflow position angles to the orientation of C18O filaments. We find that the full sample of outflows is consistent with being randomly oriented with respect to the filaments. A subsample of the most reliable measurements shows a moderately perpendicular outflow-filament alignment which may reflect accretion of mass across filaments and onto the protostellar cores.
@article{arxiv.2004.03504,
title = {The CARMA-NRO Orion Survey: Protostellar Outflows, Energetics, and Filamentary Alignment},
author = {Jesse R. Feddersen and Héctor G. Arce and Shuo Kong and Sümeyye Suri and Álvaro Sánchez-Monge and Volker Ossenkopf-Okada and Michael M. Dunham and Fumitaka Nakamura and Yoshito Shimajiri and John Bally},
journal= {arXiv preprint arXiv:2004.03504},
year = {2020}
}
Comments
22 pages, 11 figures in main text, 47 additional figures in appendices. Accepted to ApJ