A Near-infrared Survey Of Outflows In High Mass Star Forming Regions

Details A Near-infrared Survey Of Outflows In High Mass Star Forming Regions A Near-infrared Survey Of Outflows In High Mass Star Forming Regions

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...21116212r&link_type=abstract

American Astronomical Society, AAS Meeting #211, #162.12

Astronomy and Astrophysics

Astronomy

Scientific paper

We will be present a near-Infrared imaging survey of the environments of candidate high mass young stellar objects. An aim of this survey has been to explore the nature of jets and outflows in these regions, to compare their characteristics with those associated with young, low mass sources and thereby to determine whether a common formation mechanism may explain star formation across the full range of stellar masses. Images of fifty regions were obtained using the United Kingdom Infrared Telescope. Observations in the near-infrared K band (2.2micron) and at the wavelengths of H2 (2.122micron) and Br gamma (2.166micron) lines were made. In a 2.2x2.2 arcmin2 field of view of 74% of the objects exhibited H2 emission and 50% exhibited aligned H2 emission features implying collimated outflows, many of which are new discoveries. These observations imply that accretion is probably the leading mechanism in the formation of stars at least up to early B and even late O type. The YSOs responsible for many of these outflows are positively identified in our near-IR images based on their locations with respect to the outflow lobes, 2MASS colours and association with MSX, IRAS, millimetre and radio sources. The close association of the molecular outflows detected in CO with the H2 emission features produced by shock excitation by the jets from the YSOs implies that the outflows in these objects are jet driven.

Affiliated with

Also associated with

No associations

Rating

A Near-infrared Survey Of Outflows In High Mass Star Forming Regions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Near-infrared Survey Of Outflows In High Mass Star Forming Regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Near-infrared Survey Of Outflows In High Mass Star Forming Regions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1035798