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The Expansion of the Universe

Alvaro De Rújula

in Enjoy Our Universe: You Have No Other Choice

Published in print:
2018
Published Online:
February 2020
ISBN:
9780198817802
eISBN:
9780191859366
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198817802.003.0024
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

Hubble’s realm of the Nebulae (i.e., galaxies). Hubble’s predecessors: Lemaître and Slipher. The Hubble expansion constant. The apparent similarity between the Big Bang and an explosion. The ... More


LIGO/Virgo Listens to Neutron Stars

John W. Moffat

in The Shadow of the Black Hole

Published in print:
2020
Published Online:
June 2020
ISBN:
9780190650728
eISBN:
9780197517383
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190650728.003.0008
Subject:
Physics, Particle Physics / Astrophysics / Cosmology

On August 8, 2017, LIGO/Virgo detected the merging of two neutron stars 130 million light years away. Just 1.7 seconds later, the Fermi Gamma Ray Space Telescope received an optical signal—a short ... More


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