Thermal gravitational radiation of Fermi gases and Fermi liquids

Journal Article · Wed Jun 15 04:00:00 EDT 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.27.2864· OSTI ID:6050338

Schafer, G; Dehnen, H

In view of neutron stars the gravitational radiation power of the thermal ''zero-sound'' phonons of a Fermi liquid and the gravitational bremsstrahlung of a degenerate Fermi gas is calculated on the basis of a hard-sphere Fermi particle model. We find for the gravitational radiation power per unit volume P/sub( s/)approx. =((9..pi..)/sup 1/3//5) x GQ n/sup 5/3/(kT)/sup 4/ h/sup 2/c/sup 5/ and P/sub( g/)approx. =(4/sup 5//5/sup 3/)(3/..pi..)/sup 2/3/ G a/sup 2/n/sup 5/3/(kT)/sup 4//h/sup 2/c/sup 5/ for the cases of ''zero sound'' and bremsstrahlung, respectively. Here Q = 4..pi..a/sup 2/ is the total cross section of the hard-sphere fermions, where a represents the radius of their hard-core potential. The application to very young neutron stars results in a total gravitational luminosity of about 10/sup 31/ erg/sec.

• Research Organization: Fakultat fuer Physik der Universitat Konstanz, D-7750 Konstanz, Postfach 5560, West Germany
• OSTI ID: 6050338
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 27:12; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
657003 -- Theoretical & Mathematical Physics-- Relativity & Gravitation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BREMSSTRAHLUNG
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
FERMI GAS
FERMIONS
GRAVITATIONAL RADIATION
HARD-CORE POTENTIAL
HARD-SPHERE MODEL
NEUTRON STARS
NUCLEAR POTENTIAL
PHONONS
POTENTIALS
QUASI PARTICLES
RADIATIONS
STARS
THERMAL RADIATION
TOTAL CROSS SECTIONS