Poster abstract

Star formation in the outer Galaxy: NGC 1893
Micela G., Caramazza M., Prisinzano L., Sanz Forcada J., Sciortino S., Testi L.

Abstract

I will present the result of a multiwavelength campaign on NGC 1893, a star forming region at about 12 kpc from the Galactic Center.
The observations include the data from a large Chandra/Spitzer project supported by ground based optical and NIR photometry.
We have used NIR (ground and Spitzer) photometry to identify stars with circumstellar disks, and X-rays as independent membership criterion to identify Weak Line T Tauri stars that have already dissipated their disks.
The cluster is very reach with several hundreds of members. Based on WTTSs we have determined the cluster parameters (distance, age, and average reddening). We have also verified that the disk frequency in this region is comparable with that measured in nearby star forming regions.
Finally the X-ray properties of the cluster members have been derived.