Mon. Not. R. Astron. Soc., 387, 954-968 (2008/July-1)
A shallow though extensive H22.122-µm imaging survey of Taurus-Auriga-Perseus - I. NGC 1333, L1455, L1448 and B1.
DAVIS C.J., SCHOLZ P., LUCAS P., SMITH M.D. and ADAMSON A.
Abstract (from CDS):
We discuss wide-field near-infrared (near-IR) imaging of the NGC 1333, L1448, L1455 and B1 star-forming regions in Perseus. The observations have been extracted from a much larger narrow-band imaging survey of the Taurus-Auriga-Perseus complex. These H22.122-µm observations are complemented by broad-band K imaging, mid-IR imaging and photometry from the Spitzer Space Telescope, and published submillimetre CO J = 3-2 maps of high-velocity molecular outflows. We detect and label 85 H2 features and associate these with 26 molecular outflows. Three are parsec-scale flows, with a mean flow lobe length exceeding 11.5 arcmin. 37 (44 per cent) of the detected H2 features are associated with a known Herbig-Haro object, while 72 (46 per cent) of catalogued HH objects are detected in H2emission. Embedded Spitzer sources are identified for all but two of the 26 molecular outflows. These candidate outflow sources all have high near-to-mid-IR spectral indices (mean value of α ∼ 1.4) as well as red IRAC 3.6-4.5µm and IRAC/MIPS 4.5-24.0µm colours: 80 per cent have [3.6]-[4.5] > 1.0 and [4.5]- > 1.5. These criteria - high α and red [4.5]- and [3.6]-[4.5] colours - are powerful discriminants when searching for molecular outflow sources. However, we find no correlation between α and flow length or opening angle, and the outflows appear randomly orientated in each region. The more massive clouds are associated with a greater number of outflows, which suggests that the star formation efficiency is roughly the same in each region.
© 2008 The Authors. Journal compilation © 2008 RAS
stars: formation - ISM: individual: Perseus - ISM: jets and outflows - ISM: kinematics and dynamics - infrared: stars
VizieR on-line data:
<Available at CDS (J/MNRAS/387/954): tablea1.dat>
Table A1: [DSL2008] NN (Nos 1-85).
Status at CDS:
will not be processed
View the reference in ADS
To bookmark this query, right click on this link: simbad:2008MNRAS.387..954D and select 'bookmark this link' or equivalent in the popup menu