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Improving the sensitivity of future GW observatories in the 1-10 Hz band: Newtonian and seismic noise

Beker, M G; Cella, G; DeSalvo, R; Doets, M; Grote, H; Harms, J.; Hennes, E.; Mandic, V.; Rabeling, David; Van Den Brand, J.; van Leeuwen, J

Description

The next generation gravitational wave interferometric detectors will likely be underground detectors to extend the GW detection frequency band to frequencies below the Newtonian noise limit. Newtonian noise originates from the continuous motion of the Earth's crust driven by human activity, tidal stresses and seismic motion, and from mass density fluctuations in the atmosphere. It is calculated that on Earth's surface, on a typical day, it will exceed the expected GW signals at frequencies...[Show more]

dc.contributor.authorBeker, M G
dc.contributor.authorCella, G
dc.contributor.authorDeSalvo, R
dc.contributor.authorDoets, M
dc.contributor.authorGrote, H
dc.contributor.authorHarms, J.
dc.contributor.authorHennes, E.
dc.contributor.authorMandic, V.
dc.contributor.authorRabeling, David
dc.contributor.authorVan Den Brand, J.
dc.contributor.authorvan Leeuwen, J
dc.date.accessioned2015-12-13T22:19:59Z
dc.identifier.issn0001-7701
dc.identifier.urihttp://hdl.handle.net/1885/72114
dc.description.abstractThe next generation gravitational wave interferometric detectors will likely be underground detectors to extend the GW detection frequency band to frequencies below the Newtonian noise limit. Newtonian noise originates from the continuous motion of the Earth's crust driven by human activity, tidal stresses and seismic motion, and from mass density fluctuations in the atmosphere. It is calculated that on Earth's surface, on a typical day, it will exceed the expected GW signals at frequencies below 10 Hz. The noise will decrease underground by an unknown amount. It is important to investigate and to quantify this expected reduction and its effect on the sensitivity of future detectors, to plan for further improvement strategies. We report about some of these aspects. Analytical models can be used in the simplest scenarios to get a better qualitative and semi-quantitative understanding. As more complete modeling can be done numerically, we will discuss also some results obtained with a finite-element-based modeling tool. The method is verified by comparing its results with the results of analytic calculations for surface detectors. A key point about noise models is their initial parameters and conditions, which require detailed information about seismic motion in a real scenario. We will describe an effort to characterize the seismic activity at the Homestake mine which is currently in progress. This activity is specifically aimed to provide informations and to explore the site as a possible candidate for an underground observatory. Although the only compelling reason to put the interferometer underground is to reduce the Newtonian noise, we expect that the more stable underground environment will have a more general positive impact on the sensitivity. We will end this report with some considerations about seismic and suspension noise.
dc.publisherKluwer Academic Publishers
dc.sourceGeneral Relativity and Gravitation
dc.subjectKeywords: Gravitational waves; Noises
dc.titleImproving the sensitivity of future GW observatories in the 1-10 Hz band: Newtonian and seismic noise
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume43
dc.date.issued2011
local.identifier.absfor010505 - Mathematical Aspects of Quantum and Conformal Field Theory, Quantum Gravity and String Theory
local.identifier.ariespublicationU3488905xPUB3060
local.type.statusPublished Version
local.contributor.affiliationBeker, M G, Nikhef
local.contributor.affiliationCella, G, INFN
local.contributor.affiliationDeSalvo, R, California Institute of Technology
local.contributor.affiliationDoets, M, National Institute for Subatomic
local.contributor.affiliationGrote, H, Max Planck Institute for Gravitational Physics
local.contributor.affiliationHarms, J., University of Minnesota
local.contributor.affiliationHennes, E., Nikhef Amsterdam
local.contributor.affiliationMandic, V., University of Minnesota
local.contributor.affiliationRabeling, David, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationVan Den Brand, J., VU University Amsterdam
local.contributor.affiliationvan Leeuwen, J, Netherlands Institute for Radio Astronomy (ASTRON)
local.description.embargo2037-12-31
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage623
local.bibliographicCitation.lastpage656
local.identifier.doi10.1007/s10714-010-1011-7
dc.date.updated2016-02-24T10:04:23Z
local.identifier.scopusID2-s2.0-79251598109
CollectionsANU Research Publications

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