2013A&A...559A.118A


C.D.S. - SIMBAD4 rel 1.7 - 2019.09.15CEST22:58:52

2013A&A...559A.118A - Astronomy and Astrophysics, volume 559A, 118-118 (2013/11-1)

Rotating hybrid compact stars.

AYVAZYAN N.S., COLUCCI G., RISCHKE D.H. and SEDRAKIAN A.

Abstract (from CDS):

Starting from equations of state of nucleonic and color-superconducting quark matter and assuming a first-order phase transition between these, we construct an equation of state of stellar matter, which contains three phases: a nucleonic phase, as well as two-flavor and three-flavor color-superconducting phases of quarks. Static sequences of the corresponding hybrid stars include massive members with masses of ∼2M and radii in the range of 13≤R≤16 km. We investigate the integral parameters of rapidly rotating stars and obtain evolutionary sequences that correspond to constant rest-mass stars spinning down by electromagnetic and gravitational radiation. Physically new transitional sequences are revealed that are distinguished by a phase transition from nucleonic to color-superconducting matter for some configurations that are located between the static and Keplerian limits. The snapshots of internal structure of the star, displaying the growth or shrinkage of superconducting volume as the star's spin changes, are displayed for constant rest mass stars. We further obtain evolutionary sequences of rotating supramassive compact stars and construct pre-collapse models that can be used as initial data to simulate a collapse of color-superconducting hybrid stars to a black hole.

Abstract Copyright:

Journal keyword(s): dense matter - equation of state - stars: neutron - stars: rotation

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 PSR J0348+0432 Psr 03 48 43.6365407296 +04 32 11.460202882           ~ 118 1
2 PSR J1614-2230 Psr 16 14 36.5070 -22 30 31.207           ~ 247 1
3 PSR J1740-5340 Psr 17 40 44.589 -53 40 40.90   17.43   16.25   ~ 125 2
4 PSR B1744-24A Psr 17 48 02.255 -24 46 36.90           ~ 178 0
5 PSR J1748-2446ad Psr 17 48 04.9 -24 46 04           ~ 74 1
6 PSR J1903+0327 Psr 19 03 05.7937 +03 27 19.222           ~ 117 1
7 PSR J1909-3744 Psr 19 09 47.43788 -37 44 14.3240           ~ 184 2

    Equat.    Gal    SGal    Ecl

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2019.09.15-22:58:52

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