Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.262..735o&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 262, no. 3, p. 735-740.
Astronomy and Astrophysics
Astronomy
2
Dark Matter, Herbig-Haro Objects, Molecular Clouds, Charge Coupled Devices, Emission Spectra, Infrared Astronomy Satellite, Interstellar Extinction, Point Sources
Scientific paper
The discovery of two Herbig-Haro (HH) objects, designated HH 137 and 138, towards eastern Carina in a dark small cloud is reported. Their structure is investigated on the basis of narrow-band CCD images obtained in red forbidden S II lines, the H-alpha + forbidden N II emission, and the adjacent continuum. HH 137 consists of many knots distributed roughly in the east-west direction, while HH 138 has fewer knots in a similar elongation. HH 138 is located roughly on the extension of the axis of HH 137, but it is not clear whether they make a physically associated HH pair. The westernmost part of HH 137 appears to correspond to the working surface of the outflow, and one of the knots, which is bright in H-alpha + forbidden N II, is probably the Mach disk.
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