Koofers

Lecture Notes for ASTR 220 - Galaxies and Cosmology with Dokkum at Yale (Yale)

Notes Information

Material Type:Class Note
Professor:Dokkum
Class:ASTR 220 - Galaxies and Cosmology
Subject:Astronomy
University:Yale University
Term:Spring 2009
Keywords:
  • Nuclear Fusion
  • Spiral Galaxy
  • Mass Function
  • Spiral Arms
  • Fragmentation
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Astro 220: Galaxies and cosmology Feb 2, 2009 optical wavelengths: obscuration by dust infrared wavelengths: blackbody emission of gas also in this picture: a protostar, seen before nuclear fusion starts Fragmentation of molecular cloud optical wavelengths: obscuration by dust infrared wavelengths: blackbody emission of gas also in this picture: a protostar, seen before nuclear fusion starts Initial Mass Function (IMF) log (N) log (mass) Neutral Hydrogen (21 cm radiation) "Flocculent" spiral galaxy: no clear pattern Example of tidally induced spiral arms visual radio (21cm) simulation ...
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