Bipolar structure of the Herbig-Haro object RNO 40

Details Bipolar structure of the Herbig-Haro object RNO 40 Bipolar structure of the Herbig-Haro object RNO 40

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...267..168b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 267, no. 1, p. 168-176.

Astronomy and Astrophysics

Astrophysics

14

H Alpha Line, Herbig-Haro Objects, Star Formation, Stellar Structure, Astronomical Maps, Astronomical Spectroscopy, Infrared Imagery

Scientific paper

Images of the Herbig-Haro object RNO 40 and its vicinity are presented covering the wavelength range 600-2400 nanometers. These include narrow band images in the lines H-alpha, forbidden N II, S II, and O I. A bipolar morphology centered in RNO 40 is found. Both lobes are defined by a series of fainter HH knots to the SE and NW of the brightest central peak. An elongated bar-like emission is seen on the SE lobe. The infrared images show the central nebular peak and a series of knots not always coincident with those found in the optical images. Although no star was detected in the nearby 23 arcsec the morphology of the complex argues in favor of the location of the exciting source close to the central emission peak and against the identification of the far infrared source IRAS05173-0555, located 2 arcmin away, as the source of excitation.

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