RRI Digital Repository >
07. Theoretical Physics >
Research Papers (TP) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3439

Title: Higher signal harmonics, LISA's angular resolution, and dark energy
Authors: Arun, K.G.
Sathyaprakash, B.S.
Sinha, Siddhartha
Van den Broeck, Chris
Issue Date: Nov-2007
Publisher: The American Physical Society
Citation: Physical Review D, 2007,Vol.76, 104016
Abstract: It is generally believed that the angular resolution of the Laser Interferometer Space Antenna (LISA) for binary supermassive black holes (SMBH) will not be good enough to identify the host galaxy or galaxy cluster. This conclusion, based on using only the dominant harmonic of the binary SMBH signal, changes substantially when higher signal harmonics are included in assessing the parameter estimation problem. We show that in a subset of the source parameter space the angular resolution increases by more than a factor of 10, thereby making it possible for LISA to identify the host galaxy/galaxy cluster. Thus, LISA's observation of certain binary SMBH coalescence events could constrain the dark energy equation of state to within a few percent, comparable to the level expected from other dark energy missions.
Description: Open Access. This paper was published online on 9 November 2007 with several formatting errors in the heading of Table II. The table has been corrected as of 21 December 2007. The table is incorrect in the printed version of the journal.
URI: http://hdl.handle.net/2289/3439
ISSN: E-ISSN: 1550-2368
P-ISSN: 1550-7998
Alternative Location: http://arxiv.org/abs/arXiv:0707.3920
Copyright: 2007 The American Physical Society
Appears in Collections:Research Papers (TP)

Files in This Item:

File Description SizeFormat
2007 PRD V76 a104016.pdfOpen Access193.98 kBAdobe PDFView/Open
2007 PRD V76 a104016_note.pdfPublisher's note22.5 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


    RRI Library DSpace