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Strong-Field Tests of Gravity Using Pulsars and Black Holes

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arxiv astro-ph/0409379 v1 pith:5UTZJZBF submitted 2004-09-15 astro-ph gr-qc

M.Kramer (Jodrell Bank Observatory) , D.C.Backer (UC Berkeley) , J.M.Cordes (Cornell) , T.J.W.Lazio (NRL) , B.W.Stappers (ASTRON) , S.Johnston (Sydney Uni.) This is my paper · ORCID
classification astro-phgr-qc
keywords pulsarswillgravitynumberblackcensusclocksgalactic
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The sensitivity of the SKA enables a number of tests of theories of gravity. A Galactic Census of pulsars will discover most of the active pulsars in the Galaxy beamed toward us. In this census will almost certainly be pulsar-black hole binaries as well as pulsars orbiting the super-massive black hole in the Galactic centre. These systems are unique in their capability to probe the ultra-strong field limit of relativistic gravity. These measurements can be used to test the Cosmic Censorship Conjecture and the No-Hair theorem. The large number of millisecond pulsars discovered with the SKA will also provide a dense array of precision clocks on the sky. These clocks will act as the multiple arms of a huge gravitational wave detector, which can be used to detect and measure the stochastic cosmological gravitational wave background that is expected from a number of sources.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Probing an Intermediate-Mass Black Hole Companion of Sagittarius A* with Pulsar Timing

    astro-ph.HE 2026-07 conditional novelty 6.0 of 10

    A 1PN numerical timing model shows that a pulsar orbiting Sgr A* produces large, distinctive post-fit residuals from an IMBH companion, enabling constraints that fill gaps left by existing S-star and proper-motion bounds.

  2. Lorentz-violating matter-gravity couplings in small-eccentricity binary pulsars

    hep-ph 2019-08 accept novelty 6.0 of 10

    Using three small-eccentricity relativistic binary pulsars, this paper obtains order-of-magnitude upper limits on SME matter-gravity coefficients for neutrons, protons, and electrons.

  3. Galactic Centre Pulsars with the SKAO

    astro-ph.HE 2026-07 accept novelty 4.0 of 10

    Updated SKA-MID sensitivity and multi-beam search strategies can detect up to ~84% of Galactic Centre pulsars (and ~60% of MSPs) under magnetar-like scattering, unlocking precision tests around Sgr A*.

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