A Caltech Library Service

The nature of the broad molecular line emission at the Kleinmann-Low nebula

Kwan, John and Scoville, Nick (1976) The nature of the broad molecular line emission at the Kleinmann-Low nebula. Astrophysical Journal, 210 . L39-L43. ISSN 0004-637X. doi:10.1086/182298.

[img] PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We have mapped the high-velocity emission in the wings of the CO line at the Kleinmann-Low infrared nebula. The half-power diameter is found to be 80 arcseconds. Upon analysis of the observed intensity profiles and the variations in angular size at different velocities, we conclude that a differentially expanding envelope, possibly the result of an explosive event, is the most likely explanation. The kinetic energy in the flow is 4 x 10^(47) ergs, based on a numerical model of the CO emission. The recently observed v = 1 → 0 radiation of H_2 would arise from the shock front preceding the expanding gas.

Item Type:Article
Related URLs:
URLURL TypeDescription
Scoville, Nick0000-0002-0438-3323
Additional Information:© 1976. The American Astronomical Society. Received 1976 July 8. We thank Dr. Philip Solomon for first mentioning the broadband emission to us. We also thank Adair Lane for much help in obtaining these data. John Kwan thanks the State University of New York for a summer fellowship. Nick Scoville is partially supported by NSF grant MPS73-04949 and a Faculty Research Fellowship at the University of Massachusetts. This is contribution no. 215 of the Five College Observatories.
Funding AgencyGrant Number
State University of New York, Stony BrookUNSPECIFIED
NSFMPS 73-04949
University of MassachusettsUNSPECIFIED
Subject Keywords:interstellar: molecules — nebulae: individual
Record Number:CaltechAUTHORS:20190403-153007745
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94422
Deposited By: George Porter
Deposited On:05 Apr 2019 17:54
Last Modified:16 Nov 2021 17:05

Repository Staff Only: item control page