![]() |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
Here is a primer on compact objects. Calculus and differential
equations are required, but that should not be a problem for most S.A.As. Dark skies, tom ================= astro-ph/0506417: Title: Compact Stars for Undergraduates Authors: Irina Sagert, Matthias Hempel, Carsten Greiner, Juergen Schaffner-Bielich Comments: 30 pages, 20 figures, to be submitted to Eur. J. Phys We report on an undergraduate student project initiated in the summer semester of 2004 with the aim to establish equations of state for white dwarfs and neutron stars for computing mass-radius relations as well as corresponding maximum masses. First, white dwarfs are described by a Fermi gas model of degenerate electrons and neutrons and effects from general relativity are examined. For neutron star matter, the influence of a finite fraction of protons and electrons and of strong nucleon-nucleon interactions are studied. The nucleon--nucleon interactions are introduced within a Hartree-Fock scheme using a Skyrme-type interaction. Finally, masses and radii of neutron stars are computed for given central pressure. ==================== -- We have discovered a therapy ( NOT a cure ) for the common cold. Play tuba for an hour. |
#2
|
|||
|
|||
![]() "Tom Kirke" wrote in message ... Here is a primer on compact objects. Calculus and differential equations are required, but that should not be a problem for most S.A.As. LOL..are you kidding ??? |
#3
|
|||
|
|||
![]()
below
Tom Kirke wrote: Here is a primer on compact objects. Calculus and differential equations are required, but that should not be a problem for most S.A.As. Dark skies, tom ================= astro-ph/0506417: Title: Compact Stars for Undergraduates Authors: Irina Sagert, Matthias Hempel, Carsten Greiner, Juergen Schaffner-Bielich Comments: 30 pages, 20 figures, to be submitted to Eur. J. Phys We report on an undergraduate student project initiated in the summer semester of 2004 with the aim to establish equations of state for white dwarfs and neutron stars for computing mass-radius relations as well as corresponding maximum masses. First, white dwarfs are described by a Fermi gas model of degenerate electrons and neutrons and effects from general relativity are examined. For neutron star matter, the influence of a finite fraction of protons and electrons and of strong nucleon-nucleon interactions are studied. The nucleon--nucleon interactions are introduced within a Hartree-Fock scheme using a Skyrme-type interaction. Finally, masses and radii of neutron stars are computed for given central pressure. ==================== -- We have discovered a therapy ( NOT a cure ) for the common cold. Play tuba for an hour. And that all depends on what liquid of choice you carried "in" the tuba tubing,. to the ballgame. On Wisconsin! O and T. |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Astronomers Identify Largest Stars Known (Forwarded) | Andrew Yee | Astronomy Misc | 0 | January 25th 05 05:03 AM |
High proper motion. Q's | justbeats | Amateur Astronomy | 4 | November 22nd 04 09:51 AM |
ESA's Hipparcos finds rebels with a cause (Forwarded) | Andrew Yee | Astronomy Misc | 0 | October 21st 04 04:00 PM |
Neutron Stars as Cannonballs (Forwarded) | Andrew Yee | Astronomy Misc | 9 | December 7th 03 02:24 PM |
Stars Rich In Heavy Metals Tend To Harbor Planets, Astronomers Report | Ron Baalke | Misc | 5 | August 10th 03 10:58 PM |