Abstract
Near Infrared spectroscopic observations (1.2–2.4µm) of two condensations (HH 1A & HH 1G) of Herbig-Haro object 1 are used to explore the nature of its molecular shocks and extinction. The H2 emission lines display a more complex behaviour than that accounted for C or J type shock models. The extinction, determined from the ratio of [Fe II] 1.257 & 1.644µm, is higher than what is expected from optical [S II] measurements, and it may indicate real discrepancies between the optical and IR regions of the ISM extinction curve.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Draine, B.T., & McKee, C.F.: 1993,Ann. Rev. Astron. Astrophys. 31, 373
Hollenbach, D.J., & McKee, C.F.: 1979,Astrophys. J. Suppl. 41, 555
Gredel, R.: 1994,Astron. Astrophys. 292, 580
Gredel, R., & Reipurth, B.: 1993,Astrophys. J. 407, L29
Morse, J., Heathcote, S., Hartigan, P., & Cecil, G.: 1993,Astron. J. 106, 1139
Mathis, J.S.: 1990,Ann. Rev. Astron. Astrophys. 28, 37
Noriega-Crespo, A., Garnavich, P.M., & Raga, A.C.: 1993,Astron. J. 106, 1133
Noriega-Crespo, A., & Garnavich, P.M.: 1994,Astron. J. 108, 1432
Oliva, E., Moorwood, A.F.M., & Danziger, I.J.: 1990,Astron. Astrophys. 240, 453
Rieke, G.H., & Lebofsky, M.J.: 1985,Astrophys. J. 288, 618
Schwartz, R.D., Dopita, M.A., & Cohen, M.: 1985,Astron. J. 90, 1820
Smith, M.D.: 1994a,Mon. Not. R. astr. Soc. 266, 238
Smith, M.D.: 1994b,Astron. Astrophys. 289, 256
Solf, J., Böhm, K.H., & Raga, A.C.: 1988,Astrophys. J. 334, 229
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Noriega-Crespo, A., Garnavich, P.M. Nir spectroscopy and molecular shocks in Herbig-Haro 1. Astrophys Space Sci 233, 63–66 (1995). https://doi.org/10.1007/BF00627333
Issue Date:
DOI: https://doi.org/10.1007/BF00627333