Near-infrared survey of R CrA cloud (Haas+, 2008)

Details Near-infrared survey of R CrA cloud (Haas+, 2008) Near-infrared survey of R CrA cloud (Haas+, 2008)

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ycat..34880987h&link_type=abstract

VizieR On-line Data Catalog: J/A+A/488/987. Originally published in: 2008A&A...488..987H

Computer Science

Infrared Sources, Photometry: Infrared

Scientific paper

To understand low- to intermediate-mass star-formation in the nearby R CrA molecular cloud, we try to identify the stellar content that is accessible with near-infrared observations.
We obtained a JHKs band mosaic of ~10'x60' covering the entire R CrA molecular cloud with unprecedented sensitivity. We present a catalogue of about 3500 near-infrared sources fainter than the saturation limit Ks~10mag, reaching Ks~18mag. We analysed the extended sources by inspecting their morphology and point sources by means of colour-colour and colour-magnitude diagrams. Additionally, we compared the extinction inferred from the NIR data with the line-of-sight dust emission at 1.2mm. Sources towards high dust emission but relatively low H-Ks show a projected mm-excess; these sources are either immediately surrounded by cold circumstellar material or, if too red to be a true foreground object, they are embedded in the front layer of the 1.2mm emitting dust cloud. In both cases they are most likely associated with the cloud.
(1 data file).

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