Here you will find some sections of interest

Sebastian Bruzzone
Research and Theaching Assitant at The University of Western Ontario.
Physics and Astronomy Building Room 134
Meteor Lab phone: +5196612111 ext 87985

Degree presentations and reports.

Here you'll find some presentations and reports presented during the course of my bachelor degree covering several subjects.  A brief description is presented as an introduction to each subject. Unfortunately, most of them are in Spanish. If you like to have any of them in English, please ask me and I would be glad to prepare them. It could take some time though. You can choose to download the PDF files or to take a look at them from this site using the flexpaper embedded navigator.

  • Photometric Study of Asteroids in Cometary Orbits (ACOs) and Comets in Asteroidal Orbits (CAOs) - Bsc. Thesis Report
    This is the Bsc Thesis Report of the Bsc Degree in Astronomy. Here we present the results of a photometric study of ACOs and the photometric study of ''comet'' P/2008 R1 Garradd as a case. We conducted a photometric study of 10 ACOs looking for signs of low-level activity in this sample of objects selected by a dynamic criteria presented by Tancredi G. 2006. Observations of ACOs were conducted at CTIO, using the Yale 1m telescope and CASLEO, using the J. Sahade 2.15m telescope between February and March 2009. of CAO. We deliver estimates of the nucleus size of P/2008 R1 Garradd, the dust's mass and average mass variation rate with the variation of its absolute magnitude. Images were provided by McNaught R. from Siding Spring Observatory (E12) and more images were acquired at CASLEO by our team. Observations reported to the MPC were also analized. We aim to extend the fotometric analysis found in the literature, Jewitt et al. 2009, Hsieh et al. 2011.
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  • LFN10, LFN10-OMP and The N-Body problem - Computational Physics
    Report for the final project of the Computational Physics course. 2 codes are presented developed in fortran for solving the N=10 body problem using the Solar System as an example with Sun+Planets and Pluto. LFN10 is the serial version of the code wich uses the Leapfrog algorithm for solving the problem. The program returns energy and its error, the angular momentum of the system and the orbital elements (a,e,i). LFN10-OMP is the parallel version of the solver wich uses Open MP directives. The code suffers from the overhead symptom, and its performance is slower than the serial version LFN10. (IN SPANISH)
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  • X-Ray Emission from Galaxy Clusters. -Interstellar Medium and Galaxies
    Description of the processes governing the X-ray emissions in clusters of galaxies and how this could be used to obtain information about their dynamic evolution. At the same time, observational data impose limits on the possible values of cosmological parameters, such as the dark matter density of the universe. The Coma and Bullet Clusters are presented as examples and how their impose limits to the cross-section of dark matter. (SPANISH)
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  • An Introduction to Cosmology and Large Scale Structures-Interstellar Medium and Galaxies
    Introductory notes to cosmology and large scale structures. Starting from Einstein' Field Equations, we give the basic ideas of the solutions for different epochs of the universe, showing the early universe solutions for the scale parameter up to the present in a matter dominated universe. The temperature-time relationships and how to obtain observables from the theory. We finish by arguing about the plausible need for a inflating scenario in order to solve the isotropic distribution of CMB radiation. (SPANISH)
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  • Chandrasekhar Limit for White Dwarfs-Stellar Astrophysics
    Presented as a final project for the Astrophysics Course at Umea Universitet, Sweden, this report shows how to solve the set of differential equations that rules the behavior of white dwarfs and to find the limit mass for such peculiar stars. To solve this set of two non-linear differential equations we used the fourth order Runge-Kutta Method running under Matlab 6.(ENGLISH)
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  • Centaurs: Dynamical Perspectives Part 1-Trans-neptunian Workshop
    This report corresponds to the first part of an oral presentation for the TNO Workshop course held at the Astronomy Department with the participation of Julio Fernandez, Javier Licandro, Fernando Roig, Tabare Gallardo, Gonzalo Tancredi and Ricardo Gil-Hutton as the principal lecturers. This reports deals with the dynamical characteristics of the Centaur Family population, focusing on a previous work, 'The origin and distribution of the Centaur Population, Di Sisto y Brunini (2007)' on long-term simulations of centaurs objects in the Solar System. (SPANISH)
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  • Centaurs: Dynamical Perspectives Part 2-Trans-neptunian Workshop
    This report corresponds to the second part of an oral presentation for the TNO Workshop course held at the Astronomy Department with the participation of Julio Fernandez, Javier Licandro, Fernando Roig, Tabare Gallardo, Gonzalo Tancredi and Ricardo Gil-Hutton as the principal lecturers. This reports deals with the dynamical characteristics of the Centaur Family population now focusing on a previous work, 'Two dynamical classes of Centaurs, (2009), Bailey & Malhotra. They performed numerical simulations on actual Centaurs and their clones computing the Hurst parameter for several Centaurs showing different values depending on how they behave. Basically well defined Hurst exponents were found on objects showing a random walk in their energies, or semi major axis, whereas those with 'poorly defined' Hurst exponent didn't show that behavior, defining there two dynamical classes. (SPANISH)
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  • Some selected topics in Planetary Geology(Moon and Mars) - Planetary Geology Course
    In this report we present the some of the topics from the Planetary Geology Course. It includes, generalities of the Earth-Moon system where we focus in our satellite characteristics, generalities of early Mars and the main volcanic regions. (SPANISH)
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  • Itokawa: A Global Shacked and Fractured Asteroid with Brazilian Nut Effect-COSPAR
    This report corresponds to the final project presented at the COSPAR Capacity Building Workshop held in Montevideo, Uruguay between the 23th of July and August the 3th in 2007. The aim of this work is to present new explanations about the formation of asteroid Itokawa. (ENGLISH)
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  • Peak Oil, the end of the economic paradigm?-Universidad Ciencia y Sociedad
    In this report, we take a look at Peak Oil, and some of its consequences in modern society. We analyze how the lack of the most abundant resource, in which our modern civilization is based upon, will infer in the economy and food. Also, how this could led to a nightmare scenario described by the Olduvai Gorge Theory. The uprising in Egypt is analyzed focusing in their oil expenses. Also the situation in Libya is considered.(SPANISH) For more references, please visit
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  • Frobenius Method and the Sturm-Liouville Problem-Mathematical Methods for Physics
    The aim of this report is to present the method of Frobenius for solving differential equations and the Problem of Sturm-Loiuville. We review some special and well known differential equations as particular cases of the general equation and their solution, defining functions such as the Lagrange Polynomial, the Bessel Functions and so on. Also we present how the homogeneous boundary conditions impose the requirements on the solutions giving 'birth' then to a set of orthogonal functions as starting point of the Fourier Series. (SPANISH)
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 This site is currently under construction, it will be complete very soon,  I apologize for any inconvenient.

''Perhaps the most widespread evil is the Western view of man and nature.
Among us, it is widely believed that man is apart from nature, superior to it;
indeed, evolution is a process to create man and seat him on the apex of the
cosmic pinnacle. He views the earth as a treasury that he can plunder at will.
And, indeed, the behavior of Western people, notably since the advent of the
Industrial Revolution, gives incontrovertible evidence to support this assertion.''
Ian McHarg, 1971

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