Abstract Details

Name: neelam panwar
Affiliation: University of Delhi
Conference ID: ASI2016_582
Title : Low-mass young stellar content of the cluster IC1805
Authors and Co-Authors : -
Abstract Type : Poster
Abstract Category : Stars, The Milky Way Galaxy and its neighbours
Abstract : The W4 is a giant HII region ionized by more than 15~OB stars of the cluster IC~1805. It is an excellent laboratory for studying the feedback effect of massive stars on the surrounding material. However, the low-mass stellar content of the IC~1805 cluster remained very poorly studied till now. With the aim to unravel the low-mass stellar population of the cluster, deep optical data obtained with the Canada-France-Hawaii Telescope, infrared data from $Spitzer$ Space Telescope and X-ray data from Chandra Space Observatory have been used. We identified $\sim$ 500 young stellar objects (YSOs), thereby improving the YSO statistics of the cluster compared to the previous observations. These identified YSOs help us determine the age of the cluster which seems to be in the range of 0.1 - 5 Myr, with a mean age of $\sim$ 2.5 Myr. The mass-function of our YSO sample is close to the Saltpeter value; consistent with those YSO mass-function of massive star-forming complexes. We found that the diskless sources are relatively older when compared to disk bearing YSO candidates. The spatial distribution of YSOs, and the distribution of gas and dust of the complex indicate that IC 1805 could have formed in a filamentary cloud.