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Title: 
Narrow-band search of continuous gravitational-wave signals from Crab and Vela pulsars in Virgo VSR4 data
Author(s): 
Institution: 
  • CALTECH
  • Louisiana State Univ
  • Univ Salerno
  • Ist Nazl Fis Nucl
  • Univ Florida
  • LIGO Livingston Observ
  • Cardiff Univ
  • Univ Savoie
  • Univ Sannio Benevento
  • Max Planck Inst Gravitat Phys
  • Nikhef
  • MIT
  • Inst Nacl Pesquisas Espaciais
  • Interuniv Ctr Astron &Astrophys
  • Tata Inst Fundamental Res
  • Syracuse Univ
  • Univ Wisconsin
  • Univ Siena
  • Univ Mississippi
  • Calif State Univ Fullerton
  • Univ Southampton
  • Leibniz Univ Hannover
  • Univ Birmingham
  • Montana State Univ
  • Univ Perugia
  • European Gravitat Observ
  • Univ Glasgow
  • LIGO Hanford Observ
  • Univ Paris Diderot
  • Columbia Univ
  • Stanford Univ
  • Univ Pisa
  • CAMK PAN
  • Warsaw Univ
  • Univ Texas Brownsville
  • Univ Genoa
  • RRCAT
  • Moscow MV Lomonosov State Univ
  • Univ Paris 11
  • NASA
  • Univ Western Australia
  • Radboud Univ Nijmegen
  • Univ Nice Sophia Antipolis
  • Observ Cote Azur
  • MTA Eotvos Univ
  • Univ Rennes 1
  • Washington State Univ
  • Univ Urbino Carlo Bo
  • Univ Oregon
  • Univ Paris 06
  • Vrije Univ Amsterdam
  • Univ Maryland
  • Univ Massachusetts
  • Univ Lyon
  • Univ Illes Balears IEEC
  • Univ Naples Federico II
  • Univ Toronto
  • Tsinghua Univ
  • Univ Michigan
  • Natl Tsing Hua Univ
  • Charles Sturt Univ
  • Pusan Natl Univ
  • Australian Natl Univ
  • Carleton Coll
  • Univ Roma Tor Vergata
  • Univ Roma La Sapienza
  • Univ Brussels
  • Sonoma State Univ
  • Texas Tech Univ
  • Univ Minnesota
  • Univ Sheffield
  • RMKI
  • Montclair State Univ
  • Argentinian Gravitat Wave Grp
  • Univ Trento
  • Trento Inst Fundamental Phys &Applicat
  • Northwestern Univ
  • Univ Cambridge
  • Univ Szeged
  • Rutherford Appleton Lab
  • Embry Riddle Aeronaut Univ
  • Penn State Univ
  • Amer Univ
  • Univ Adelaide
  • W Virginia Univ
  • Raman Res Inst
  • Korea Inst Sci &Technol Informat
  • Univ Bialystok
  • Univ Strathclyde
  • IISER TVM
  • Inst Appl Phys
  • Seoul Natl Univ
  • Hanyang Univ
  • NCBJ
  • IM PAN
  • Inst Plasma Res
  • Univ Melbourne
  • Monash Univ
  • Ecole Super Phys &Chim Ind Ville Paris
  • Univ Camerino
  • Southern Univ
  • A&M Coll
  • Coll William &Mary
  • Abilene Christian Univ
  • Universidade Estadual Paulista (UNESP)
  • IISER Kolkata
  • Whitman Coll
  • Natl Inst Math Sci
  • Rochester Inst Technol
  • Hobart &William Smith Coll
  • Univ West Scotland
  • Inst Astron
  • Univ Hamburg
  • Indian Inst Technol
  • Andrews Univ
  • Trinity Univ
  • Univ Washington
ISSN: 
1550-7998
Sponsorship: 
  • United States National Science Foundation
  • Science and Technology Facilities Council of the United Kingdom
  • Max-Planck Society
  • State of Niedersachsen/Germany
  • Italian Istituto Nazionale di Fisica Nucleare
  • French Centre National de la Recherche Scientifique
  • Australian Research Council
  • International Science Linkages program of the Commonwealth of Australia
  • Council of Scientific and Industrial Research of India
  • Istituto Nazionale di Fisica Nucleare of Italy
  • Spanish Ministerio de Economia y Competitividad
  • Conselleria d'Economia Hisenda i Innovacio of the Govern de les Illes Balears
  • Foundation for Fundamental Research
  • Netherlands Organisation for Scientific Research
  • Polish Ministry of Science and Higher Education
  • FOCUS Programme of Foundation for Polish Science
  • Royal Society
  • Scottish Funding Council
  • Scottish Universities Physics Alliance
  • National Aeronautics and Space Administration
  • OTKA of Hungary
  • Lyon Institute of Origins (LIO)
  • National Research Foundation of Korea, Industry Canada
  • Province of Ontario through the Ministry of Economic Development and Innovation
  • Natural Sciences and Engineering Research Council of Canada
  • Carnegie Trust
  • Leverhulme Trust
  • David and Lucile Packard Foundation
  • Research Corporation
  • Alfred P. Sloan Foundation
Abstract: 
In this paper we present the results of a coherent narrow-band search for continuous gravitational-wave signals from the Crab and Vela pulsars conducted on Virgo VSR4 data. In order to take into account a possible small mismatch between the gravitational-wave frequency and two times the star rotation frequency, inferred from measurement of the electromagnetic pulse rate, a range of 0.02 Hz around two times the star rotational frequency has been searched for both the pulsars. No evidence for a signal has been found and 95% confidence level upper limits have been computed assuming both that polarization parameters are completely unknown and that they are known with some uncertainty, as derived from x-ray observations of the pulsar wind torii. For Vela the upper limits are comparable to the spin-down limit, computed assuming that all the observed spin-down is due to the emission of gravitational waves. For Crab the upper limits are about a factor of 2 below the spin-down limit, and represent a significant improvement with respect to past analysis. This is the first time the spin-down limit is significantly overcome in a narrow-band search.
Issue Date: 
21-Jan-2015
Citation: 
Physical Review D, v. 91, n. 2, p. 1-15, 2015.
Time Duration: 
1-15
Publisher: 
Amer Physical Soc
Source: 
http://journals.aps.org/prd/abstract/10.1103/PhysRevD.91.022004
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/128966
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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