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The bow shock and Mach disk of HH 111V

1993; IOP Publishing; Volume: 410; Linguagem: Inglês

10.1086/172793

1538-4357

Jon A. Morse, Steve Heathcote, Gerald Cecil, Patrick Hartigan, J. C. Raymond,

Astrophysics and Star Formation Studies

view Abstract Citations (64) References (33) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Bow Shock and Mach Disk of HH 111V Morse, Jon A. ; Heathcote, Steve ; Cecil, Gerald ; Hartigan, Patrick ; Raymond, John C. Abstract Spatially resolved H-alpha and forbidden S II 6716, 6731 wavelength line profiles are presented for the working-surface region of the Herbig-Haro object HH 111 V, spatially and kinematically separating the Mach disk emission from that of the bow shock. Detailed measurements of the electron density as a function of position and velocity across the bow shock, in conjunction with new bow shock emission models, show that an ambient magnetic field of about 30 micro-Gauss inhibits the compression of the postshock gas. The models also indicate that the magnetic field also contributes to extending the cooling distance behind the shock to resolvable scales. Publication: The Astrophysical Journal Pub Date: June 1993 DOI: 10.1086/172793 Bibcode: 1993ApJ...410..764M Keywords: Bow Waves; Herbig-Haro Objects; Shock Waves; Astronomical Models; Emission Spectra; Interstellar Extinction; Stellar Magnetic Fields; Astrophysics; SHOCK WAVES; STARS: INDIVIDUAL ALPHANUMERIC: HH 111; STARS: PRE--MAIN-SEQUENCE full text sources ADS | data products SIMBAD (5)