Near-infrared emission-line images of three Herbig-Haro objects

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/169884· OSTI ID:5262340

Stapelfeldt, K R; Scoville, N Z; Beichman, C A; Hester, J J; Gautier, III, T N ^[1]

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1. Palomar Observatory, Pasadena, CA (USA)

Flux-calibrated imagery in five emission-line and four narrow-band continuum filters are presented for three classical Herbig-Haro (HH) objects, HH 7-11, HH 12, and HH 34. 1.64 micron forbidden Fe II emission is detected in all three objects whose intensity is typically 20 percent. This line should be an excellent tracer of shocked ionized gas in highly obscured regions. Extinction appears to be unimportant in determining the morphology of these HH object systems. No near-IR continuum emission was detected from any of the HH objects, implying that these regions do not contain embedded stars. At positions where the flow terminates against a large obstacle, there are significant offsets between the shocked flow material and the shocked ambient medium. 39 refs.

• OSTI ID: 5262340
• Journal Information: Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 371; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ELECTROMAGNETIC RADIATION
EMISSION SPECTRA
FLUIDS
GASES
HERBIG-HARO OBJECTS
INFRARED RADIATION
IONIZED GASES
LUMINOSITY
MORPHOLOGY
NEAR INFRARED RADIATION
NEBULAE
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
SHOCK WAVES
SPECTRA