SIMBAD references

2020ApJ...892L..35B - Astrophys. J., 892, L35-L35 (2020/April-1)

A 1201 s orbital period detached binary: the first double helium core white dwarf LISA verification binary.

BROWN W.R., KILIC M., BEDARD A., KOSAKOWSKI A. and BERGERON P.

Abstract (from CDS):

We report the discovery of a 1201 s orbital period binary, the third shortest-period detached binary known. Sloan Digital Sky Survey J232230.20 + 050942.06 contains two He-core white dwarfs orbiting with a 27° inclination. Located 0.76 kpc from the Sun, the binary has an estimated Laser Interferometer Space Antenna (LISA) 4 yr signal-to-noise ratio of 40. J2322 + 0509 is the first He + He white dwarf LISA verification binary, a source class that is predicted to account for one-third of resolved LISA ultra-compact binary detections.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Compact binary stars - DA stars - DC stars - Gravitational wave sources - Gravitational waves - White dwarf stars - Compact objects - Detached binary stars

VizieR on-line data: <Available at CDS (J/ApJ/892/L35): fig1.dat>

Simbad objects: 5

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