S316p.70 — Endo and Exo GMC vs MSC: Census and Analysis

Date & Time

Aug 10th at 6:00 PM until 7:30 PM




Rating ( votes)

Author(s): Alisher S Hojaev1

Institution(s): 1. NUU/UBAI

Nowadays revolutionary progress in instrumentation and observing technology provides possibilities to find and deeply study the giant molecular clouds (GMC) and massive star clusters (MSC) not in our Galaxy only (endo) but also in the nearest galaxies (exo). Significant enough observable mass in these galaxies is concentrated in GMC and MSC. Naturally GMC should be closely bound with cold dust-gas clouds, particularly HI ones and have to play a key-role in MSC forming processes as well as in the kinematics and dynamics of the host galaxy in a whole. Therefore the counting and surveying of the GMC and MSC populations is important. In attempt to solve at least some problems of the physics and evolution of the GMC and MSC, their interplay and impact on the dynamics and evolution of galaxies we drafted a consolidated composite catalogs of GMC that observable from the Earth using the recent data from DB VizieR, SIMBAD at CDS as well as original papers, reports and other publications were used. Catalogs contain the coordinates, sizes, distances, masses and other physical parameters (such as density, temperature, radial velocity, etc.) that are available for the different clouds. A preliminary statistical and correlation analyses of the data has been performed, the spatial distribution is drawn and the total number is estimated, the dynamic model of formation and evolution of GMC and MSC system is proposed. The results are compared and discussed with data of other investigations as well as the ways to complete and improve the catalog data are also proposed. In conclusion, we prepared the complex program for further observations of GMC and MSC using the Suffa radio telescope and other large facilities to cover the lack of observed physical parameters.