2020MNRAS.496.5575S

Query : 2020MNRAS.496.5575S

2020MNRAS.496.5575S - Mon. Not. R. Astron. Soc., 496, 5575-5583 (2020/August-3)

Coupling of dual mass-transferring white dwarf binaries as a variable gravitational-wave emitter.

SETO N.

Abstract (from CDS):

We study evolution of a hierarchical four-body (2 + 2) system composed by a pair of mass-transferring white dwarf binaries. Applying a simplified model around the synchronous state of two inner orbital periods, we newly find that the four-body system could settle down to a limit cycle with a small period gap. The period gap generates an amplitude variation of emitted gravitational waves as a beat effect. Depending on model parameters, the beat period could be 1-10 yr and a large amplitude variation might be observed by space gravitational-wave detectors.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): gravitational waves - celestial mechanics - stars: kinematics and dynamics - binaries: close

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GrW 150914 GWE ~ ~           ~ 674 1

Query : 2020MNRAS.496.5575S

Basic data :
GrW 150914 -- Gravitational Wave Event
Other object types: otypes_help 		GWE (GrW)
ICRS coord. (ep=J2000) : 		No Coord.
Radial velocity / Redshift / cz : 		V(km/s) 25772 [~] / z(~) 0.09 [~] / cz 26981 [~]
   E 2016ApJ...823L..25K
notes:

Identifiers (3) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

GrW 150914 095045 GrW 150914 NAME GW150914

References (674 between 1850 and 2026) (Total 674)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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