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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
appenxa.dat 59 201 Results for various equations of state
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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
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Bytes Format Units Label Explanations
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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
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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 1970Ap&SS...6..228C
L: Pandharipande et al., 1976ApJ...208..550P 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 1985ApJ...293..470G
G300: Glendenning, 1985ApJ...293..470G 1985ApJ...293..470G
WFF: Wiringa et al., 1988, Phys. Rev., C38, 1010
MPA: Wu et al., 1991A&A...246..411X 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
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Acknowledgements: Johannes Ruoff
(End) Patricia Bauer CDS 28-Nov-2000