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J/A+A/366/565       Radial oscillations of relativistic stars (Kokkotas+, 2001)

Radial oscillations of relativistic stars Kokkotas K.D., Ruoff J. <Astron. Astrophys. 366, 565 (2001)> =2001A&A...366..565K
ADC_Keywords: Pulsars ; Models, evolutionary Keywords: stars: neutron - stars: oscillations - equation of state - dense matter - gravitation Abstract: We present a new survey of the radial oscillation modes of neutron stars. This study complements and corrects earlier studies of radial oscillations. We present an extensive list of frequencies for the most common equations of state and some more recent ones. In order to check the accuracy, we use two different numerical schemes which yield the same results. The stimulation for this work comes from the need of the groups that evolve the full nonlinear Einstein equations to have reliable results from perturbation theory for comparison. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file appenxa.dat 59 201 Results for various equations of state
See also: J/A+A/291/155 : Rotating neutron stars models. I. (Salgado+, 1994) J/A+AS/108/455 : Rotating neutron stars models. II. (Salgado+, 1994) J/ApJ/416/276 : Eq. of State in Magnetic Neutron Stars (Rognvaldsson+ 1993) Byte-by-byte Description of file: appenxa.dat
Bytes Format Units Label Explanations
1- 17 A17 --- EOS Equation of state (1) 22- 26 F5.3 10+15g/cm3 rhoc Central density 28- 33 F6.3 km R Stellar radius 35- 39 F5.3 solMass M Stellar mass 41- 45 F5.3 kHz nu0 Frequency of fundamental radial mode (2) 46 A1 --- f_nu0 [*] Asterisk denotes unstable model 48- 52 F5.3 kHz nu1 Frequency of second radial mode 54- 59 F6.3 kHz nu2 Frequency of third radial mode
Note (1): Equations of state: A: Pandharipande, 1971, Nucl. Phys., A178, 123 B: Pandharipande, 1971, Nucl. Phys., A178, 123 C: Bethe & Johnson, 1974, Nucl. Phys., A230, 1 model I D: Bethe & Johnson, 1974, Nucl. Phys., A230, 1 model V E: Moszkowski, 1974, Phys. Rev., D9, 1613 F: Arponen, 1972 Nucl. Phys., A, 191, 257 G: Canuto & Chitre, 1974, Phys. Rev., D9, 1587 I: Cohen et al., 1970Ap&SS...6..228C L: Pandharipande et al., 1976ApJ...208..550P N: Serot, 1979, Phys. Lett., 86B, 146; 87B, 403 O: Bowers et al., 1975, Phys. Rev., D12, 3043 G240: Glendenning, 1985ApJ...293..470G G300: Glendenning, 1985ApJ...293..470G WFF: Wiringa et al., 1988, Phys. Rev., C38, 1010 MPA: Wu et al., 1991A&A...246..411X APR1: Akmal et al., 1998, Phys. Rev., C58, 1804 APR2: Akmal et al., 1998, Phys. Rev., C58, 1804 polytrope n = 1 : polytropic EOS with n=1 and κ=100km2 polytrope n = 0.8: polytropic EOS with n=0.8 and κ=700km2.5 polytrope n = 1 : polytropic EOS with n=0.5 and κ=2x105km4 Note (2): For unstable model, number is e-folding time in ms
Acknowledgements: Johannes Ruoff
(End) Patricia Bauer CDS 28-Nov-2000
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