SIMBAD references

1999MNRAS.310..331M - Mon. Not. R. Astron. Soc., 310, 331-354 (1999/December-1)

New Herbig-Haro objects and giant outflows in Orion.


Abstract (from CDS):

We present the results of a photographic and CCD imaging survey for Herbig-Haro (HH) objects in the L1630 and L1641 giant molecular clouds in Orion. The new HH flows were initially identified from a deep Hα film from the recently commissioned AAO/UKST Hα Survey of the southern sky. Our scanned Hα and broad-band R images highlight both the improved resolution of the Hα survey and the excellent contrast of the Hα flux with respect to the broad-band R. Comparative IVN survey images allow us to distinguish between emission and reflection nebulosity. Our CCD Hα, [Sii], continuum and I-band images confirm the presence of a parsec-scale HH flow associated with the Ori I-2 cometary globule, and several parsec-scale strings of HH emission centred on the L1641-N infrared cluster. Several smaller outflows display one-sided jets. Our results indicate that, for declinations south of -6° in L1641, parsec-scale flows appear to be the major force in the large-scale movement of optical dust and molecular gas.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): surveys - stars: formation - ISM: individual: L1630 - ISM: individual: L1641 - ISM: jets and outflows

Nomenclature: HH NNN (Nos 289, 292, 407). Fig.2: [MZP99] HH 289 N (Nos 1-5). Fig.19: [MZP99] HH 403-404 Bow N (Nos 1-3). Fig.21: [MZP99] NGC 1999 Loop N (Nos 1-2).

CDS comments: IRAS 05355-0416? not identified.

Simbad objects: 133

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