SIMBAD references

2013AJ....145...28R - Astron. J., 145, 28 (2013/February-0)

Proper motions of young stellar outflows in the mid-infrared with Spitzer (IRAC). I. The NGC 1333 region.


Abstract (from CDS):

We use two 4.5 µm Spitzer (IRAC) maps of the NGC 1333 region taken over a ∼7 yr interval to determine proper motions of its associated outflows. This is a first successful attempt at obtaining proper motions of stellars' outflow from Spitzer observations. For the outflow formed by the Herbig-Haro objects HH7, 8, and 10, we find proper motions of ∼9-13 km.s–1, which are consistent with previously determined optical proper motions of these objects. We determine proper motions for a total of eight outflows, ranging from ∼10 to 100 km.s–1. The derived proper motions show that out of these eight outflows, three have tangential velocities ≤ 20 km.s–1. This result shows that a large fraction of the observed outflows have low intrinsic velocities and that the low proper motions are not merely a projection effect.

Abstract Copyright:

Journal keyword(s): circumstellar matter - Herbig-Haro objects - infrared: ISM - ISM: individual (HH7-11, NGC 1333) - ISM: jets and outflows - stars: formation

CDS comments: "knot A" not in Simbad.

Simbad objects: 17

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