SIMBAD references

2001A&A...378..495R - Astronomy and Astrophysics, volume 378, 495-508 (2001/11-1)

A single distance sample of molecular outflows from high-mass young stellar objects.

RIDGE N.A. and MOORE T.J.T.

Abstract (from CDS):

We have made 12CO 2–1 and 1–0 maps of eleven molecular outflows associated with intermediate to high-mass young stellar objects (YSOs) in order to establish whether the correlations between outflow parameters and source bolometric luminosity hold in the high-mass regime. It is important to consider the effects of Malmquist-type biases when looking at high-mass YSOs, as they are generally much more distant than their low mass counterparts. We therefore chose only objects located at ~2 kpc. We find that the relations show much more scatter than is seen in similar studies of low-mass YSOs. We also find that the mass-spectrum is significantly steeper in high-mass outflows, indicating a larger mass-fraction at lower velocities, a low collimation factor (~1–2) and no Hubble-like relationship.

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Simbad objects: 13

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