1996A&A...315L.321N

Query : 1996A&A...315L.321N

1996A&A...315L.321N - Astronomy and Astrophysics, volume 315L321-324 (1996/11-2)

LWS-spectroscopy of Herbig Haro objects and molecular outflows in the Cha II dark cloud.

NISINI B., LORENZETTI D., COHEN M., CECCARELLI C., GIANNINI T., LISEAU R., MOLINARI S., RADICCHI A., SARACENO P., SPINOGLIO L., TOMMASI E., CLEGG P.E., ADE P.A.R., ARMAND C., BARLOW M.J., BURGDORF M., CAUX E., CERULLI P., CHURCH S.E., DI GIORGIO A., FISCHER J., FURNISS I., GLENCROSS W.M., GRIFFIN M.J., GRY C., KING K.J., LIM T., NAYLOR D.A., TEXIER D., ORFEI R., NGUYEN-Q-RIEU, SIDHER S., SMITH H.A., SWINYARD B.M., TRAMS N., UNGER S.J. and WHITE G.J.

Abstract (from CDS):

We present the first far infrared spectra of the Herbig Haro objects HH 52-53-54 and of IRAS 12496-7650, all located in the nearby star forming region known as Chamaleon II dark cloud, obtained with the Long Wavelength Spectrometer (LWS) onboard the Infrared Space Observatory (ISO). The richest spectrum is found in HH 54, showing molecular transitions (CO with Ju from 19 to 14, water vapour mainly in its ortho form and OH) and low excitation fine structure lines ([OI]63, 145µm, [CII]158µm). In HH 52 and HH 53,only the [OI] and [CII] lines are detected. The LWS spectrum of IRAS 12496-7650 shows both fine structure and CO lines. The [CII]158µm line is ubiquitous in the region, as proved by its presence in all ISO pointings, including the raster scan maps. The fine structure lines are used to evaluate the physical parameters of the emitting regions. In particular, the mass loss rates of each outflow present in the region, are derived from the [OI]63µm line luminosity.

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Journal keyword(s): stars: formation - stars: individual: IRAS 12496-7650 - ISM: jets and outflows - ISM: individual objects: HH 52, HH 53, HH 54 - infrared: ISM: lines

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
2 IRAS 12340-7958 LP* 12 37 39.7408011816 -80 15 13.707391932   16.11 14.39 13.63 9.81 ~ 108 0
3 NAME Cha III MoC 12 37.8 -80 15           ~ 147 2
4 V* DK Cha TT* 12 53 17.2111480272 -77 07 10.736046012           F0e 149 0
5 NAME Cha II MoC 12 54 -77.2           ~ 361 0
6 HH 52 HH 12 55 06.4 -76 57 46           ~ 38 0
7 HH 53 HH 12 55 06.4 -76 57 46           ~ 36 0
8 IRAS C12515-7641 IR 12 55.2 -76 57           ~ 8 1
9 HH 53A HH 12 55 15.91 -76 57 27.5           ~ 4 0
10 HH 54 HH 12 55 49.5 -76 56 08           ~ 119 0
11 HH 54B HH 12 55 50.3 -76 56 23           ~ 30 0

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