2001A&A...376..165L


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.04CEST22:07:41

2001A&A...376..165L - Astronomy and Astrophysics, volume 376, 165-174 (2001/9-2)

The residual orbital eccentricity in close binaries. An application to millisecond binary pulsars.

LANZA A.F. and RODONO M.

Abstract (from CDS):

Density fluctuations in convective stars produce small variations of their outer gravitational field that give rise to a very small, though finite, orbital eccentricity in close binaries with convective components. We revisit the theory for such an effect, originally presented by Phinney (1992, Phil. Trans. R. Soc. Lond. A, 341, 39), and propose a new approach to compute the fluctuations of the outer gravitational field based on Chandrasekhar's virial theorem. It is applied to compute the eccentricities of binaries with a millisecond pulsar component in the framework of a simplified model of their evolution. The comparison with the observations allows us to test the models proposed for the formation of such systems, giving support to the evolutionary scenarios that connect them with low-mass X-ray binaries, and to provide a new test for turbulent convection models of giant stars.

Abstract Copyright:

Journal keyword(s): stars: close binaries - binary pulsars - celestial mechanics - stellar convection - extrasolar planets

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PSR J0621+10 Psr 06 21 22.11108 +10 02 38.7410           ~ 92 1
2 PSR J1022+10 Psr 10 22 58.011 +10 01 52.85           ~ 175 2
3 PSR J1232-6501 Psr 12 32 17.840 -65 01 03.33           ~ 23 0
4 PSR J1435-60 Psr 14 35 20.2765 -61 00 57.956           ~ 44 1
5 PSR J1453-58 Psr 14 54 10.908 -58 46 34.74           ~ 27 1
6 PSR J1604-72 Psr 16 03 35.67980 -72 02 32.6984           ~ 93 0
7 PSR J1810-2005 Psr 18 10 58.988 -20 05 08.30           ~ 30 0
8 PSR B1831-00 Psr 18 34 17.25 -00 10 53.3           DA 90 0
9 PSR B1902+04.1 Psr 19 04 31.382 +04 12 05.90           ~ 21 0
10 PSR J1959+2048 Psr 19 59 36.7480 +20 48 14.599   20.4       ~ 701 2
11 V* LY Aqr Psr 20 51 07.5145 -08 27 37.795           ~ 163 2
12 PSR B2145-07.8 Psr 21 45 50.47 -07 50 18.3           ~ 222 0

    Equat.    Gal    SGal    Ecl

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2020.08.04-22:07:41

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