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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 10    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 10, October 2011 Edition
SEDs and Age Estimates of MYSOs: Study of Galactic Massive Star Forming Regions
Full Text(PDF, 3000)  PP.  
Author(s)
Kamal Kumar Tanti, Jayashree Roy, Dr. Kalpana Duorah
KEYWORDS
Spectral Energy Distribution (SED), Young Stellar Objects (YSO), Massive Star Forming Regions, Massive Star Formation, Age, Mass, On-line SED Fitting Tool, Circumstellar Disk, Envelope
ABSTRACT
In this paper, we present the spectral energy distributions (SEDs) of six massive young stellar objects (MYSOs) detected from the NIR imaging survey carried out by Varricatt et al. (2010) and estimated their ages and masses. The SEDs of YSOs in six massive star forming regions has been reconstructed using 2MASS, MSX, IRAS, IRAC & MIPS, SCUBA, WISE, SPIRE and IRAM data partly available from previous works using the on-line SED Fitting tool (SED Fitter) developed by Robitaille et al. (2006, 2007). Apart from IRAS catalogue fluxes, the fluxes in the Mid-IR and sub-mm/mm were derived directly from the images. With the help of the analysis of spectral energy distributions, we have extracted important physical and structural parameters for each of the massive young stellar objects, along with the associated circumstellar disk and envelope. The cumulative distribution of stellar ages and masses of the massive YSOs indicates to a scenario for the formation history of massive stars in their respective star forming regions.
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