Spectral study of the object HH12

Details Spectral study of the object HH12 Spectral study of the object HH12

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap.....49...63h&link_type=abstract

Astrophysics, Volume 49, Issue 1, pp.63-69

Astronomy and Astrophysics

Astrophysics

Herbig-Haro Objects-Individual, Hh12

Scientific paper

Spectral studies of one of the brightest Herbig-Haro objects, HH12, using a multiaperture (multi-pupil) spectrograph are reported. We identify nine knots (densification nodes) in intensity diagrams. Hα emission mainly predominates in this object, except in two of the knots (C and M) which have a lower excitation level, given their high [SII] line intensity. The average electron temperature across the object is 6700 K. It is shown that the radial velocity of the object as a whole is low, i.e., its motion is mostly in the celestial plane. The excitation source for HH12 is also discussed.

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