Browsing MIT Open Access Articles by Author "K., Haris"
Now showing items 1-8 of 8
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Calibration of the Advanced LIGO detectors for the discovery of the binary black-hole merger GW150914
(American Physical Society, 2017-03)In Advanced LIGO, detection and astrophysical source parameter estimation of the binary black hole merger GW150914 requires a calibrated estimate of the gravitational-wave strain sensed by the detectors. Producing an ... -
Directly comparing GW150914 with numerical solutions of Einstein’s equations for binary black hole coalescence
(American Physical Society, 2016-09)We compare GW150914 directly to simulations of coalescing binary black holes in full general relativity, including several performed specifically to reproduce this event. Our calculations go beyond existing semianalytic ... -
GW150914: First results from the search for binary black hole coalescence with Advanced LIGO
(American Physical Society, 2016-06)On September 14, 2015, at 09∶50:45 UTC the two detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) simultaneously observed the binary black hole merger GW150914. We report the results of a matched-filter ... -
Improved Upper Limits on the Stochastic Gravitational-Wave Background from 2009–2010 LIGO and Virgo Data
(American Physical Society, 2014-12)Gravitational waves from a variety of sources are predicted to superpose to create a stochastic background. This background is expected to contain unique information from throughout the history of the Universe that is ... -
Observing gravitational-wave transient GW150914 with minimal assumptions
(American Physical Society, 2016-06)The gravitational-wave signal GW150914 was first identified on September 14, 2015, by searches for short-duration gravitational-wave transients. These searches identify time-correlated transients in multiple detectors with ... -
Search for continuous gravitational waves from neutron stars in globular cluster NGC 6544
(American Physical Society, 2017-04)We describe a directed search for continuous gravitational waves in data from the sixth initial LIGO science run. The target was the nearby globular cluster NGC 6544 at a distance of ≈2.7 kpc. The search covered a broad ... -
Search for transient gravitational waves in coincidence with short-duration radio transients during 2007–2013
(American Physical Society, 2016-06)We present an archival search for transient gravitational-wave bursts in coincidence with 27 single-pulse triggers from Green Bank Telescope pulsar surveys, using the LIGO, Virgo, and GEO interferometer network. We also ... -
Searching for stochastic gravitational waves using data from the two colocated LIGO Hanford detectors
(American Physical Society, 2015-01)Searches for a stochastic gravitational-wave background (SGWB) using terrestrial detectors typically involve cross-correlating data from pairs of detectors. The sensitivity of such cross-correlation analyses depends, among ...
