ORCID Profile
0000-0003-4068-6572
Current Organisation
University of Tokyo
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Publisher: American Physical Society (APS)
Date: 10-03-2008
Publisher: American Physical Society (APS)
Date: 10-03-2008
Publisher: American Physical Society (APS)
Date: 10-03-2008
Publisher: American Physical Society (APS)
Date: 12-08-2010
Publisher: American Physical Society (APS)
Date: 10-03-2008
Publisher: American Physical Society (APS)
Date: 22-11-2005
Publisher: American Physical Society (APS)
Date: 04-06-2013
Publisher: American Astronomical Society
Date: 06-11-2009
Publisher: Springer Science and Business Media LLC
Date: 11-09-2011
DOI: 10.1038/NPHYS2083
Publisher: Springer Science and Business Media LLC
Date: 16-10-2017
DOI: 10.1038/NATURE24471
Abstract: On 17 August 2017, the Advanced LIGO and Virgo detectors observed the gravitational-wave event GW170817-a strong signal from the merger of a binary neutron-star system. Less than two seconds after the merger, a γ-ray burst (GRB 170817A) was detected within a region of the sky consistent with the LIGO-Virgo-derived location of the gravitational-wave source. This sky region was subsequently observed by optical astronomy facilities, resulting in the identification of an optical transient signal within about ten arcseconds of the galaxy NGC 4993. This detection of GW170817 in both gravitational waves and electromagnetic waves represents the first 'multi-messenger' astronomical observation. Such observations enable GW170817 to be used as a 'standard siren' (meaning that the absolute distance to the source can be determined directly from the gravitational-wave measurements) to measure the Hubble constant. This quantity represents the local expansion rate of the Universe, sets the overall scale of the Universe and is of fundamental importance to cosmology. Here we report a measurement of the Hubble constant that combines the distance to the source inferred purely from the gravitational-wave signal with the recession velocity inferred from measurements of the redshift using the electromagnetic data. In contrast to previous measurements, ours does not require the use of a cosmic 'distance ladder': the gravitational-wave analysis can be used to estimate the luminosity distance out to cosmological scales directly, without the use of intermediate astronomical distance measurements. We determine the Hubble constant to be about 70 kilometres per second per megaparsec. This value is consistent with existing measurements, while being completely independent of them. Additional standard siren measurements from future gravitational-wave sources will enable the Hubble constant to be constrained to high precision.
Publisher: IOP Publishing
Date: 12-04-2017
Publisher: American Astronomical Society
Date: 11-05-2015
Publisher: IOP Publishing
Date: 06-2012
Publisher: IOP Publishing
Date: 24-10-2007
Publisher: American Astronomical Society
Date: 16-10-2017
Publisher: American Association for the Advancement of Science (AAAS)
Date: 18-06-2021
Abstract: Cooling objects to low temperature can increase the sensitivity of sensors and the operational performance of most devices. Removing most of the thermal vibrations—or phonons—such that the object reaches its motional quantum ground state has been achieved but typically with tiny, nanoscale objects. Using the suspended mirrors of the Laser Interferometer Gravitational-Wave Observatory (LIGO) that form a 10-kg optomechanical oscillator, Whittle et al. demonstrate the ability to cool such a large-scale object to nearly the motional ground state. An upgrade to LIGO with such a modification could increase its sensitivity and range to gravitational waves but also extend studies of quantum mechanics to large-scale objects. Science , abh2634, this issue p. 1333
Publisher: Oxford University Press (OUP)
Date: 09-12-2022
DOI: 10.1093/PTEP/PTAC166
Abstract: KAGRA, the underground and cryogenic gravitational-wave detector, was operated for its solo observation from February 25 to March 10, 2020, and its first joint observation with the GEO 600 detector from April 7 to April 21, 2020 (O3GK). This study presents an overview of the input optics systems of the KAGRA detector, which consist of various optical systems, such as a laser source, its intensity and frequency stabilization systems, modulators, a Faraday isolator, mode-matching telescopes, and a high-power beam dump. These optics were successfully delivered to the KAGRA interferometer and operated stably during the observations. The laser frequency noise was observed to limit the detector sensitivity above a few kilohertz, whereas the laser intensity did not significantly limit the detector sensitivity.
Publisher: American Astronomical Society
Date: 20-04-2007
DOI: 10.1086/511329
Publisher: American Physical Society (APS)
Date: 28-11-2005
Publisher: American Physical Society (APS)
Date: 07-03-2006
Publisher: American Physical Society (APS)
Date: 08-09-2005
Publisher: American Physical Society (APS)
Date: 23-12-2009
Publisher: Wiley
Date: 04-10-2016
Publisher: American Astronomical Society
Date: 15-03-2012
Publisher: AIP
Date: 2010
DOI: 10.1063/1.3460206
Publisher: American Physical Society (APS)
Date: 30-07-2007
Publisher: American Astronomical Society
Date: 11-07-2016
Publisher: IOP Publishing
Date: 14-05-2010
Publisher: American Astronomical Society
Date: 07-04-2017
Location: United States of America
No related grants have been discovered for Kipp Cannon.