The distribution of photometrically selected T Tauri candidates in the outer Galaxy

Kiss, Z. T. and Tóth, L. G. and Könyves, V. (2006) The distribution of photometrically selected T Tauri candidates in the outer Galaxy. In: 4th Workshop of Young Researchers in Astronomy & Astrophysics. Publications of the Astronomy Department of the Eötvös University (17). ELTE Sokszorosítóüzeme, Budapest, pp. 173-178.

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Abstract

We mapped the NIR extinction in the 2$^{nd}$ and 3$^{rd}$ galactic quadrant in the $\pm30\deg$ latitude range covering a $\approx$10300 square degree area based on the 2MASS Point Source Catalogue. We selected the sources with T~Tauri like NIR colours, and investigated their distribution. We describe the variation of the CTT candidate number density as function of galactic latitude and longitude. We searched for CTT candidate clustering and compiled a catalogue of associations found. We found that significant fraction of clusters found are situated in the shells of GIRLs.

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