Doctoral thesis
OA Policy
English

From infrared dark clouds to massive young stars: Spitzer and MALT90 studies of massive star forming regions

ContributorsSaral, Gözde
DirectorsAudard, Marcorcid
Defense date2017-11-08
Abstract

This thesis focuses on high-mass star formation by using infrared and sub-millimeter data mainly from the Spitzer Space Telescope and Mopra Telescope MALT90 Survey data archives. The first part is a photometric study of massive star-forming regions W49, W51, W43 in the Galaxy to investigate the census of Young Stellar Objects (YSOs) membership by using color-color and color-magnitude relations. YSO catalogs with thousands of sources are generated for these regions. The second part is a spectroscopic investigation of high-mass clumps. MALT90 Survey data was used to investigate different stages of star formation. Physical and chemical properties of these clumps were determined. The spatial distribution of lines, their profiles, and column densities indicate that these sources are at very early stages of star formation. There are several interesting sources among them need further investigation with high sensitivity and high spatial resolution.

Keywords
  • Stars formation
  • Stars early-type
  • Stars massive
  • ISM lines and bands
  • ISM molecules
  • ISM abundance
  • Submillimeter ISM
Citation (ISO format)
SARAL, Gözde. From infrared dark clouds to massive young stars: Spitzer and MALT90 studies of massive star forming regions. Doctoral Thesis, 2017. doi: 10.13097/archive-ouverte/unige:101261
Main files (1)
Thesis
accessLevelPublic
Identifiers
559views
63downloads

Technical informations

Creation12/19/2017 3:05:00 PM
First validation12/19/2017 3:05:00 PM
Update time03/15/2023 7:43:40 AM
Status update03/15/2023 7:43:39 AM
Last indexation10/31/2024 9:17:51 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack