AAT Observations of 2MASS Stellar Cluster Candidates

Details AAT Observations of 2MASS Stellar Cluster Candidates AAT Observations of 2MASS Stellar Cluster Candidates

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.2507c&link_type=abstract

American Astronomical Society Meeting 203, #25.07; Bulletin of the American Astronomical Society, Vol. 35, p.1249

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Near-infrared imaging surveys such as the Two Micron All Sky Survey (2MASS) and the Deep NIR Southern Sky Survey (DENIS) provide a wealth of data, enabling searches for previously unknown stellar clusters. As part of a separate investigation into the Initial Mass Function (IMF) as a function of galactic environment, we have used published survey results, in addition to our own search of the 2MASS archive, to identify cluster candidates from a wide range of galactocentric radii.
On 14-15 July 2003, we obtained images of two of these cluster candidates, Object 11 (Dutra & Bica, 2000, A&A, 359, L9) and Object 41 (Dutra & Bica, 2001, A&A, 376, 434), at the 4 meter Anglo-Australian Telescope with the facility instrument IRIS2. IRIS2 utilizes a 1024X1024 HgCdTe array, with a pixel scale of 0.46", resulting in a 7.7'X7.7' field of view. When observed at this scale, the cluster candidates are revealed to be enhancements in stellar density due to a hole in the line of sight dust, and not actual clusters. The 2MASS search which identified these as cluster candidates used a 5'X5' FOV; when the 2MASS archive is examined with a 8'X8' FOV, a result similar to our higher resolution images is obtained. These results suggest that the 2MASS search criteria for stellar clusters in the galactic plane must chosen with extreme caution.

Affiliated with

Also associated with

No associations

Rating

AAT Observations of 2MASS Stellar Cluster Candidates 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 AAT Observations of 2MASS Stellar Cluster Candidates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AAT Observations of 2MASS Stellar Cluster Candidates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1418758