First cycle
degree courses
Second cycle
degree courses
Single cycle
degree courses
School of Science
Course unit
SCN1032617, A.A. 2017/18

Information concerning the students who enrolled in A.Y. 2017/18

Information on the course unit
Degree course Second cycle degree in
SC1173, Degree course structure A.Y. 2010/11, A.Y. 2017/18
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Degree course track ASTRONOMIA [001PD]
Number of ECTS credits allocated 6.0
Type of assessment Mark
Course unit English denomination STELLAR POPULATIONS
Website of the academic structure
Department of reference Department of Physics and Astronomy
Mandatory attendance
Language of instruction English
Single Course unit The Course unit can be attended under the option Single Course unit attendance
Optional Course unit The Course unit can be chosen as Optional Course unit

Teacher in charge GIOVANNI CARRARO FIS/05

Course unit code Course unit name Teacher in charge Degree course code

ECTS: details
Type Scientific-Disciplinary Sector Credits allocated
Core courses FIS/05 Astronomy and Astrophysics 6.0

Mode of delivery (when and how)
Period Second semester
Year 1st Year
Teaching method frontal

Organisation of didactics
Type of hours Credits Hours of
Hours of
Individual study
Lecture 6.0 48 102.0 No turn

Start of activities 26/02/2018
End of activities 01/06/2018

Prerequisites: Basic knowledge of stellar astrophysics: Stellar evolution, c-m diagrams, stellar photometry and spectroscopy, astrometry.
Target skills and knowledge: Properties of stellar population in the solar neighbor, in star clusters, in the Milky Way, in galaxies. Basic knowledge of the observable (and their interpretation) for unresolved stellar populations.
Examination methods: Oral
Assessment criteria: Capability to present the different topics of the program with a scientifically correct language
Course unit contents: Color magnitude diagrams.
Luminosity-magnitude and temperature-color transformation. Effects of the interstellar reddening on the color-magnitude diagrams.

The concept of stellar populations: Historical background.

Stellar populations: Modern view.

The Galactic model by Eggen, Lynden-Bell and Sandage.

The galactic halo model from Searle and Zinn.

Stellar populations in the solar neighbor

The interstellar medium near to the Sun and the local bubble.

Population II.
Measurement of population II main parameters: reddening,
distance, age, chemical content
Globular Clusters stellar populations
The concept of multiple stellar populations
The helium content of the population II stars.
The horizontal branch and the second parameter problem

The population I and the galactic disk. Open clusters and field population.

Stellar populations in dwarf Galaxies of the Local Group

The initial mass function.

Observational parameters of unresolved stellar population and their interpretation

Star formation History in galaxies

Basic principles of the chemical evolution of the stellar populations.
Planned learning activities and teaching methods: Lectures in classroom
Exercises of fundamental papers reading and presentation
Additional notes about suggested reading: Informatic material from the teacher
Textbooks (and optional supplementary readings)
  • Salaris, Maurizio; Cassisi, Santi, Evolution of stars and stellar populationsMaurizio Salaris, Santi Cassisi. Chichester: UK, Wiley, --.
  • Greggio, Laura; Renzini, Alvio, Stellar populationsa user guide from low to high redshiftLaura Greggio, Alvio Renzini. Weinheim: Wiley-VCH, 2011.