Single-Source Gravitational Wave Limits From the J1713+0747 24-hr Global Campaign

T. Dolch (1) , J. Ellis (2) , S. Chatterjee (3) , J. Cordes (3) , M. Lam (3) , C. Bassa (4) , B. Bhattacharyya (5) , D. J. Champion (6) , Ismaël Cognard (7) , K. Crowter (8) , P. B. Demorest (9) , J. Hessels (10) , G. Janssen (5) , F. A. Jenet (11) , G. Jones (12) , C. Jordan (5) , R. Karuppusamy (6) , M. Keith (5) , V. I. Kondratiev (10) , M. Kramer (6) , P. Lazarus (6) , T. J. W. Lazio (2) , D. R. Lorimer (13) , D. R. Madison (4) , M. A. Mclaughlin (13) , N. Palliyaguru (14) , D. Perrodin (15) , S. M. Ransom (16) , J. Roy (5) , R. Shannon (17) , R. Smits (18) , I. H. Stairs (19) , B. W. Stappers (5) , D. R. Stinebring (20) , K. Stovall (21) , J. P. W. Verbiest (6) , W. W. Zhu (6, 7)

1 Department of Physics, Hillsdale College
2 JPL - Jet Propulsion Laboratory
3 Department of Astronomy [Ithaca]
4 Cornell University [New York]
5 Jodrell Bank Centre for Astrophysics
6 MPIFR - Max-Planck-Institut für Radioastronomie
7 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
8 Department of Physics and Astronomy [Vancouver]
9 NRAO - National Radio Astronomy Observatory [Socorro]
10 ASTRON - Netherlands Institute for Radio Astronomy
11 CGWA - Center for Gravitational Wave Astronomy
12 CAL - Columbia Astrophysics Laboratory
13 Department of Physics and Astronomy, West Virginia University
14 Department of Physics, West Virginia University
15 OAC - INAF - Osservatorio Astronomico di Cagliari
16 NRAO - National Radio Astronomy Observatory [Green Bank]
17 CSIRO Astronomy and Space Science
18 Netherlands Institute for Radio Astronomy ( ASTRON )
19 Department of Physics and Astronomy, University of British Columbia
20 Department of Physics and Astronomy [Oberlin]
21 Department of Physics and Astronomy [Albuquerque]

Dense, continuous pulsar timing observations over a 24-hr period provide a method for probing intermediate gravitational wave (GW) frequencies from 10 microhertz to 20 millihertz. The European Pulsar Timing Array (EPTA), the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), the Parkes Pulsar Timing Array (PPTA), and the combined International Pulsar Timing Array (IPTA) all use millisecond pulsar observations to detect or constrain GWs typically at nanohertz frequencies. In the case of the IPTA's nine-telescope 24-Hour Global Campaign on millisecond pulsar J1713+0747, GW limits in the intermediate frequency regime can be produced. The negligible change in dispersion measure during the observation minimizes red noise in the timing residuals, constraining any contributions from GWs due to individual sources. At 10(-5) Hz, the 95% upper limit on strain is 10(-11) for GW sources in the pulsar's direction.

Keywords: BLACK-HOLE BINARIES; SYSTEM; DATA SET; PULSAR TIMING ARRAY

Domains: Astrophysics [astro-ph]

T. Dolch, J. Ellis, S. Chatterjee, J. Cordes, M. Lam, et al.. Single-Source Gravitational Wave Limits From the J1713+0747 24-hr Global Campaign. 11th Edoardo Amaldi Conference on Gravitational Waves (AMALDI 11), Jun 2015, Gwangju, South Korea. 4 p., ⟨10.1088/1742-6596/716/1/012014⟩. ⟨insu-01500368⟩