5 papers · 1 filter
A census of molecular hydrogen outflows and their sources along the Orion A molecular ridge: characteristics and overall distribution
C. J. Davis, D. Froebrich, T. Stanke +9
We present wide-field near-IR images of Orion A. K and H2 1-0S(1) images of a contiguous 8 sqr degree region are compared to photometry from Spitzer and dust-continuum maps obtaine…
Spitzer--IRAC Imagery and Photometry of Ultracompact HII Regions With Extended Emission
E. de la Fuente, A. Porras, J. M. C. Grave +6
We present the results of a morphological study performed to a sample of Ultracompact (UC) HII regions with Extended Emission (EE) using Spitzer--IRAC imagery and 3.6 cm VLA conf.…
Spitzer-IRAC GLIMPSE of high mass protostellar objects. I Infrared point sources and nebulae
M. S. N. Kumar, J. M. C. Grave
The GLIMPSE archive was used to obtain 3.6--8.0micron, point source photometry and images for 381 massive protostellar candidates lying in the Galactic mid-plane. The colours, magn…
WFCAM, Spitzer-IRAC and SCUBA observations of the massive star forming region DR21/W75: I. The collimated molecular jets
C. J. Davis, M. S. N. Kumar, G. Sandell +3
We present wide-field near-infrared images of the DR21/W75 high-mass star forming region, obtained with the Wide Field Camera, WFCAM, on the United Kingdom Infrared Telescope. Broa…
WFCAM, Spitzer-IRAC and SCUBA observations of the massive star forming region DR21/W75: II. Stellar content and star formation
M. S. N. Kumar, C. J. Davis, J. M. C. Grave +2
Wide field near-infrared observations and Spitzer Space Telescope IRAC observations of the DR21/W75 star formation regions are presented. The photometric data are used to analyse t…