Ultraviolet spectra of Herbig-Haro objects and of the environment of the Cohen-Schwartz star.
Abstract
Observations in both spectral regions were used in order to determine the continuous energy distribution and the emission line fluxes for H-H 2. The continuous spectrum is similar to that in H-H 1 and F lambda increases rapidly towards shorter wavelengths. This statement is found to be qualitatively correct for all obvious choices of the ultraviolet extinction curve if we use the E(B-V) value determined by the use of the S II method. The origin of the continuum remains enigmatic. The emission line spectrum of H-H 2 shows an even somewhat higher degree of ionization than the spectrum of H-H 1, indicating an even larger discrepancy between ionization information from optical data and that contained in the UV spectra. The immediate environment of the Cohen-Schwartz star emits a continuous spectrum similar to that of a H-H-object but increasing even more steeply towards shorter wavelengths.
- Publication:
-
NASA Conference Publication
- Pub Date:
- 1982
- Bibcode:
- 1982NASCP2238..223B
- Keywords:
-
- Astronomy;
- Emission Spectra;
- Energy Distribution;
- Herbig-Haro Objects;
- Line Spectra;
- Ultraviolet Radiation;
- Ultraviolet Spectra;
- Extinction;
- Ionization;
- Iue;
- Long Wave Radiation;
- Herbig-Haro Objects:UV Spectra