Physics And Universe

wolf rayet stars

Posted by Physics And Universe | Jun 18, 2013 | Stars |

Wolf Rayet Stars (discovered by C. Wolf and G. Royet in 1867) are very hot stars (T > 70,000...

Posted by Physics And Universe | Jun 17, 2013 | Astronomy |

Neutral Hydrogen The most important Interstellar medium line from the neutral Hydrogen is 21 cm...

Posted by Physics And Universe | Jun 16, 2013 | Astronomy |

Molecular hydrogen is very difficult to detect. None of its transitions lie in the visible part of...

Posted by Physics And Universe | Jun 15, 2013 | Astronomy |

The medium between the stars is called interstellar medium. It consists of extremely dilute...

Posted by Physics And Universe | Jun 14, 2013 | Stars |

The Harvard classification only takes into account the effect of the temperature on the spectrum....