Author Archives: Luis Martínez

Protostar Formation – Infographic

Took me a while to do that. I hope that you like what I did. In some respects, I am not happy. I wanted to fit much, much more info. But I saw very soon that that was not going to … Continue reading

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Protostar formation – mindmap

Edit: see the infographic HERE Why this, actually? Once upon a time, I had an astrophysics exam. I took this book and put myself to work. I read the relevant chapters carefully, and crafted summaries and mindmaps for each block of … Continue reading

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Animated astronomy video

I just found this video in YouTube, created by the same people who makes PhD comics. After watching it I had to share it in here. This is good stuff. Albeit not thorough, frenetically fast, deceptively messy, and beautifully executed. … Continue reading

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Carolyn Porco: This is Saturn

I wanted to share this with you. A TED talk about the exploration of Saturn by Carolyn Porco. I hope that you enjoy it!

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The Solar Neutrino Problem

The solar core emits neutrinos as a result of the nuclear reactions in the pp-chain. The thing with neutrinos is, they have a very small cross-section, and therefore are very difficult to detect (they can go all the way through Earth … Continue reading

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Solar Model

The Sun, a typical main-sequence star of spectral class G2, with a surface of composition X = 0.73 (mass fraction of hydrogen) and Z = 0.02 (mass fraction of metals). Current estimated age: 4.52e9 years. The standard solar model applies physical stellar … Continue reading

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Stellar Modelling

Stellar Models require: The fundamental stellar structure equations (FSSE) The constitutive relations (CR): “equations of state” describing the physical properties of the matter of the star. If the structure of the star is changing, the influence of gravitational energy must … Continue reading

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