Preliminary results of broad-band and narrow-band charge-coupled device imaging of the young star cluster NGC 6823 and the associated bright nebula NGC 6820 are reported. The observations were made in August 2001 at Maidanak Observatory (Uzbekistan) as a collaborative initiative between the
Graduate Institute of Astronomy, National Central University, Taiwan, and Ulugh Beg Astronomical Institute, Uzbek Academy of Sciences. The two institutes, together with colleagues from Lithuania and Latvia, are working together to modernize and instrument the existing telescope facilities at
Maidanak to make use of the excellent astroclimate of the site. As a pilot project, we selected candidate young stars in NGC 6823, based on their 2MASS near-infrared colours and obtained their photometry with Maidanak telescopes. The youth natures of some of these sources were later confirmed by
spectra taken by the 2.16 m telescope at Beijing Observatory. This demonstrates that combination of small telescopes and existing databases, such as 2MASS, ROSAT or Chandra, can yield fruitful science. Other Uzbek-Taiwan collaborations are being planned.
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Document Type: Research Article
Ulugh Beg Astronomical Institute Uzbek Academy of Sciences 33 Astronomicheskaya 700052 Tashkent Uzbekistan
Graduate Institute of Astronomy National Central University Chung-Li 32054 Taiwan
Publication date: 2003-08-01
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