Telescopio Canarias (GTC) tagged posts

The Origin of the First Structures formed in Galaxies like the Milky Way identified

An example of a nearby spiral galaxy, M81, where the bulge is easily identified as the central redder part, and the disc, dotted with zones where stars are currently forming and appear as blue regions forming spiral arms. Credit: NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA.
An example of a nearby spiral galaxy, M81, where the bulge and the disc are easily identified. Credit: NASA/JPL-Caltech/ESA/Harvard-Smithsonian CfA.

An international team of scientists led from the Centre for Astrobiology (CAB, CSIC-INTA), with participation from the Instituto de Astrofísica de Canarias (IAC), has used the Gran Telescopio Canarias (GTC) to study a representative sample of galaxies, both disc and spheroidal, in a deep sky zone in the constellation of the Great Bear to characterize the properties of the stellar populations of galactic bulges. The researchers have been able to determine the mode of formation and development of these galactic structures. The results of this study were recently published in The Astrophysical Journal.

The researchers focused their study ...

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