BibTex format
@article{Bartolo:2022:11/009,
author = {Bartolo, N and Bertacca, D and Caldwell, R and Contaldi, CR and Cusin, G and De, Luca V and Dimastrogiovanni, E and Fasiello, M and Figueroa, DG and Franciolini, G and Jenkins, AC and Peloso, M and Pieroni, M and Renzini, A and Ricciardone, A and Riotto, A and Sakellariadou, M and Sorbo, L and Tasinato, G and Torrado, J and Clesse, S and Kuroyanagi, S},
doi = {11/009},
journal = {Journal of Cosmology and Astroparticle Physics},
title = {Probing anisotropies of the Stochastic Gravitational Wave Background with LISA},
url = {http://dx.doi.org/10.1088/1475-7516/2022/11/009},
volume = {2022},
year = {2022}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - We investigate the sensitivity of the Laser Interferometer Space Antenna (LISA) to the anisotropies of the Stochastic Gravitational Wave Background (SGWB). We first discuss the main astrophysical and cosmological sources of SGWB which are characterized by anisotropies in the GW energy density, and we build a Signal-to-Noise estimator to quantify the sensitivity of LISA to different multipoles. We then perform a Fisher matrix analysis of the prospects of detectability of anisotropic features with LISA for individual multipoles, focusing on a SGWB with a power-law frequency profile. We compute the noise angular spectrum taking into account the specific scan strategy of the LISA detector. We analyze the case of the kinematic dipole and quadrupole generated by Doppler boosting an isotropic SGWB. We find that β ΩGW ∼ 2 × 10-11 is required to observe a dipolar signal with LISA. The detector response to the quadrupole has a factor ∼ 103 β relative to that of the dipole. The characterization of the anisotropies, both from a theoretical perspective and from a map-making point of view, allows us to extract information that can be used to understand the origin of the SGWB, and to discriminate among distinct superimposed SGWB sources.
AU - Bartolo,N
AU - Bertacca,D
AU - Caldwell,R
AU - Contaldi,CR
AU - Cusin,G
AU - De,Luca V
AU - Dimastrogiovanni,E
AU - Fasiello,M
AU - Figueroa,DG
AU - Franciolini,G
AU - Jenkins,AC
AU - Peloso,M
AU - Pieroni,M
AU - Renzini,A
AU - Ricciardone,A
AU - Riotto,A
AU - Sakellariadou,M
AU - Sorbo,L
AU - Tasinato,G
AU - Torrado,J
AU - Clesse,S
AU - Kuroyanagi,S
DO - 11/009
PY - 2022///
SN - 1475-7516
TI - Probing anisotropies of the Stochastic Gravitational Wave Background with LISA
T2 - Journal of Cosmology and Astroparticle Physics
UR - http://dx.doi.org/10.1088/1475-7516/2022/11/009
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000899443700009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR - https://iopscience.iop.org/article/10.1088/1475-7516/2022/11/009
UR - http://hdl.handle.net/10044/1/107058
VL - 2022
ER -