Tuesday, September 30, 2014

Proceedings of 3rd International Olympiad on Astronomy and Astrophysics

3rd International Olympiad on Astronomy and Astrophysics was held in Iran, Tehran from 17th October to 27th October, 2009. The proceedings include problems and solutions proposed by the organizing committee of 3rd IOAA and award list.

3rd IOAA Proceedings

Monday, September 29, 2014

Russian Open School Astronomical Olympiad by Correspondence

Russian Open School Astronomical Olympiad by Correspondence (ROSAOC) - is an annual international competition for secondary school students in astronomy. Olympiad is being conducted in one theoretical stage by correspondence.

Here are the problems and solutions of ROSAOC (2005-2008).

Mathematical Olympiad: Preparation

Mathematics has so many divisions, but you do not have to be expert in all parts for Mathematical Olympiads. If you check the past papers of any Mathematical Olympiad, especially International Mathematical Olympiad, then you’ll see that it basically covers Number Theory, Algebra, Geometry, Combinatorics and Inequality. To solve the problems you’ve to increase your problem solving skills, know some tricks and enhance the capability of doing problems using the best method.

I’m giving you some book suggestion to start your preparation for Mathematical Olympiad. Books are given in order of difficulty. So, if you are a beginner, you should start with the first book of each part.
Number theory
(i) Beginning Number Theory
(ii) Number Theory
(iii) Adler’s Number Theory
(iv) A Pathway into Number Theory
(v) Elementary Number Theory
(vi) A Primer of Analytic Number Theory

(i) Concrete Abstract Algebra

(i) Plane Euclidean Geometry Theory & Problems
(ii) Geometry Revisited
(iii) Geometry Unbound
(iv) Complex number & Geometry
(v) The Algebra of Geometry
(vi) Transformation Geometry

(i) Combinatorics
(ii) Principles and Techniques in Combinatorics
(iii) A Path to Combinatorics for Undergraduates

(i) Inequalities
(ii) Algebra Inequalities
(iii) Secrets in Inequality

Saturday, September 27, 2014

IOAA Problems (2013-2014)

Here are the question papers of IOAA (International Olympiad on Astronomy and Astrophysics) 2013 and 2014. Hope this will be helpful for Astronomy Olympiad preparation.

Friday, September 26, 2014

Bangladesh Astro-Olympiad (Problems)

Bangladesh Astronomical Association organizes National Astronomy Olympiad every year. Here are the question papers of 5th, 7th and 8th National Astronomy Olympiad.

Thursday, September 25, 2014

Messier Objects

The Messier objects are a set of astronomical objects first listed by French astronomer Charles Messier in 1771. The Messier catalogue comprises nearly all the most spectacular examples of the five types of deep sky object – diffuse nebulaeplanetary nebulaeopen clustersglobular clusters and galaxies. For astronomy olympiad, it will be worthwhile to learn positions of 40 easier messier objects

Here is the complete list of Messier Objects.

Wednesday, September 24, 2014

Spherical Astronomy

Spherical astronomy or Positional astronomy is the branch of astronomy that is used to determine the location of objects on the celestial sphere, as seen at a particular date, time, and location on the Earth. It relies on the mathematical methods of spherical geometry and the measurements of astrometry.

The primary elements of spherical astronomy are coordinate systems and time. The coordinates of objects on the sky are listed using the equatorial coordinate system, which is based on the projection of the Earth's equator onto the celestial sphere. The position of an object in this system is given in terms of right ascension (α) and declination (δ). The latitude and local time can then be used to derive the position of the object in the horizontal coordinate system, consisting of the altitude and azimuth.

Here is a good note of Spherical Astronomy, which will be useful for Astronomy Olympiad Preparation.

Tuesday, September 23, 2014

Useful Formulas for Astronomy and Astrophysics Olympiad

Astronomy Olympiad requires a good understanding of Astrophysical concepts and formulas. I'm providing a link here, from where you can download commonly used formulas in Astrophysics. 


And here is a short list of some useful formulas for Astronomy Olympiad.

Monday, September 22, 2014

Doppler Effect

The Doppler effect (or Doppler shift) is the change in frequency of a wave (or other periodic event) for an observer moving relative to its source. The Doppler effect for electromagnetic waves such as light is of great use in astronomy and results in either a so-called redshift or blueshift. It has been used to measure the speed at which stars and galaxies are approaching or receding from us, that is, the radial velocity. This is used to detect if an apparently single star is, in reality, a close binary and even to measure the rotational speed of stars and galaxies.
The use of the Doppler effect for light in astronomy depends on our knowledge that the spectra of stars are not homogeneous. They exhibit absorption lines at well defined frequencies that are correlated with the energies required to excite electrons in various elements from one level to another. The Doppler effect is recognizable in the fact that the absorption lines are not always at the frequencies that are obtained from the spectrum of a stationary light source. Since blue light has a higher frequency than red light, the spectral lines of an approaching astronomical light source exhibit a blueshift and those of a receding astronomical light source exhibit a redshift.

Saturday, September 20, 2014

IAU Constellations

Constellations are integral part of astronomy Olympiad. In modern astronomy, a constellation is an internationally defined area (by International Astronomical Union) of the celestial sphere. These areas are grouped around patterns that represent the shapes that give the name to the constellations. When astronomers say an object is "in" a given constellation, they mean it is within the boundaries of one of these defined areas of sky, as the patterns may have several variants in its representation.

Here is the compiled book of IAU constellations that I made during my preparation for Astronomy Olympiad. 

IOAA 2014, Romania (Problems)

Theoretical, Observational and Data Analysis

8th International Olympiad on Astronomy and Astrophysics (IOAA 2014) was held in Suceava, Romania from 1st to 11th August, 2014. Here are the problems of IOAA 2014. 

Thursday, September 18, 2014

IMO 2014, South Africa (Problems)

55th International Mathematics Olympiad (IMO 2014) was held in Cape Town, South Africa from 3rd to 13th July, 2014. Here are the problems of IMO 2014. 

Source- http://www.imo-official.org/problems.aspx

Solutions- http://imomath.com/index.php?options=924

IPhO 2014, Kazakhstan (Problems)

IPhO 2014 Problems

45th International Physics Olympiad (IPhO 2014) was held in Astana, Kazakhstan from the 13th to the 21st of July. Here are the problems and solutions of IPhO 2014.