Speaker
Description
Abstract
Einstein Telescope is a proposed third-generation gravitational wave detector
which is expected to have an increased broadband sensitivity by a factor of 10
with respect to advanced detectors while also extending the low frequency sen-
sitivity of ground based gravitational wave interferometers below 10 Hz. Grav-
itational wave observations using a network of detectors permits a direct and
independent measurement of the distance to the source systems. Knowing the
redshift of the source, the inspiraling binary systems can be used as standard
sirens to extract cosmological information. Since, the redshift and the system
chirp mass are degenerate in gravitational wave observations with a single detec-
tor, it is usually assumed that the source redshift is obtained from the electro-
magnetic counterparts. The current design of the Einstein Telescope consists of
three overlapping interferometers, arranged in an equilateral configuration with
arm-opening angles of 60 degrees. In this work we consider a joint analysis of
coalescing binaries detection with three ET-D interferometers in the triangu-
lar configuration to constrain their luminosity distances and chirp masses. We
present the method and investigate its accuracy.
