Astrophysics

From Citizendium
Revision as of 18:45, 2 January 2008 by imported>Thomas Simmons (New page: A simple definition of astrophysics is this is the field wherein the study of physics is applied to the study of the cosmos. It is a hybrid field combining physics and astronomy, and has t...)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

A simple definition of astrophysics is this is the field wherein the study of physics is applied to the study of the cosmos. It is a hybrid field combining physics and astronomy, and has two subdivisions, theoretical and applied or experimental.

Research in astrophysics addresses a great variety of topics, for example:

  • Stars
- stellar evolution
- magnetic field properties
- stellar convection
  • Stellar atmospheres
- nature of spectral analysis
- electron density
  • The Galaxy (the Milky Way)
- interstellar gas and dust
  • Galaxies
- modeling the environs of galactic-centre massive black holes;
- the structure and dynamics of galactic bars;
- the flow of gas into and out of galaxies;
- the role of active galactic nuclei in limiting the growth of galaxies.
  • CMB (cosmic microwave background radiation)
  • Astroparticles
  • Black holes
  • Dark Matter
  • Astrochemistry (The role of the chemical bond and organic chemistry in nature on a cosmic scale)
Over 140 molecules have been identified in the interstellar gas and circumstellar shells. To date the largest is a carbon chain with 13 atoms and a molecular weight of 147.

[1][2][3][4]


Notes

  1. Theoretical astrphysics Oxford P{hysics, Oxford University
  2. Degenerate electron pressure Swineburn University, Centre for Astrophysics and Supercomputing
  3. CfA Research Harvard-Smithsonian Center for Astrophysics
  4. Astrochemistry Harvard-Smithsonian Center for Astrophysics