Quasar Proper Motions and Low‐Frequency Gravitational Waves | Zendy

C. R. Gwinn | Zendy; T. M. Eubanks | Zendy; Ted Pyne | Zendy; M. Birkinshaw | Zendy; Demetrios Matsakis | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Quasar Proper Motions and Low‐Frequency Gravitational Waves

Author(s) -

C. R. Gwinn,

T. M. Eubanks,

Ted Pyne,

M. Birkinshaw,

Demetrios Matsakis

Publication year - 1997

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/304424

Subject(s) - physics , quasar , gravitational wave , harmonics , gravitational energy , astrophysics , limit (mathematics) , gravitational acceleration , gravitation , classical mechanics , galaxy , quantum mechanics , mathematical analysis , mathematics , voltage

We report observational upper limits on the mass-energy of the cosmologicalgravitational-wave background, from limits on proper motions of quasars.Gravitational waves with periods longer than the time span of observationsproduce a simple pattern of apparent proper motions over the sky, composedprimarily of second-order transverse vector spherical harmonics. A fit of suchharmonics to measured motions yields a 95%-confidence limit on the mass-energyof gravitational waves with frequencies <2e-9 Hz, of <0.11/h*h times theclosure density of the universe.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research