Teaching

Lecture Notes in Cosmology

After some years of teaching I collected my handwritten notes and published them in 2018 in a book with Springer.

Topics: The Expanding Universe, Thermal History, Cosmological Perturbations, Boltzmann Equations, Initial Conditions, Stochastic Perturbations, Inflation, Cosmic Microwave Background Temperature and Polarisation Anisotropies.

The extended, updated and corrected version of Lecture Notes in Cosmology is available on arXiv (https://arxiv.org/abs/1803.00070). It forms the basis of the forthcoming second edition of the book with Springer.

Geodesics

I sporadically work on this monograph in which I systematically use Vieta's formulas in order to categorize the geodesic trajectories of massive and massless particles in the geometry of some well-known black hole solutions. At the moment, I have only considered Schwarzschild and Kerr solutions (the latter not yet completely).

Contact me if you wish to have a look at the draft.

Talks and Lectures

Mathematica Codes

I have developed some Mathematica codes for my work. They are detailed in the following. If interested, please contact me.

  • Solution of the Tolman-Oppenheimer-Volkoff equations for the stability of a neutron star and Mass-Radius diagram.

  • Computation of the likelihood from SNIa data for a wCDM model (easily extendable to any cosmological model with 2 free parameters). You'll need a dat file with SNIa data. My code here is set up for the Union2 dataset. An immediate improvement is to use the last JLA data.

  • Analysis of the likelihood, contour plots and probability density functions for a wCDM model (extendable again to any cosmological model with 2 free parameters).

Contact

E-mail: of.piattella@uninsubria.it

Office Phone number: +39 031 238 6213

Address

Dipartimento di Scienza e Alta Tecnologia (DiSAT)
Università degli Studi dell'Insubria
via Valleggio, 11
22100, Como, Italy