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...the '''Lyth argument''' places a theoretical upper bound on the amount of gravitational waves produced during inflation, given the amount of departure from the hom * During slow-roll inflation, the ratio of gravitational waves to inhomogeneities of the [[Cosmic microwave background|CMB]] is corr ...

{{Short description|Gravitational-wave astronomy technique}} ...onomers are now seeking to pinpoint the origins of an exciting new form of gravitational waves that was announced earlier this year.}}</ref> ...

...l|date=2016|title=Sub-femto-g free fall for space-based gravitational wave observatories: LISA pathfinder results|journal=Physical Review Letters|volume=116|issue=2 ...al|date=2018|title=Cooling the motion of a silica microsphere in a magneto-gravitational trap in ultra-high vacuum|journal=New Journal of Physics|volume=20|issue=6| ...

...title=Quantum-Enhanced Advanced LIGO Detectors in the Era of Gravitational-Wave Astronomy|journal=Physical Review Letters|volume=123|issue=23|page=231107 | ...Electromagnetic radiation|electromagnetic wave]], as well as for any other wave or oscillation (see figure right). This fact can be observed in experiments ...

|name=GW150914|event_type=[[Gravitational wave]]|discovery={{circa}} 1.4 billion years ago <br> ...wave-detection-heralds-new-era-of-science-0211201644/ |title=Gravitational Wave Detection Heralds New Era of Science |work=Sky and Telescope |date=11 Febru ...

...particle|subatomic matter]] may have been tightly packed to the point of [[gravitational collapse]], creating primordial black holes without the [[supernova]] compr ...een strengthened by both [[LIGO]]/[[Virgo interferometer]] [[gravitational wave]] and JWST observations.<ref name="jwst">{{cite journal |last1=Hütsi |first ...

...|doi-access=free}}</ref> They carry away about 99% of the [[binding energy|gravitational energy]] of the dying star as a burst lasting tens of seconds.<ref>{{Cite j ...ugh sparse, confirmed the salient features of the basic supernova model of gravitational collapse and associated neutrino emission.<ref name=":1" /> It put strong c ...

{{Short description|Method of detecting gravitational waves}} ...rvations]] have been made using this technique; the [[First observation of gravitational waves|first detection]], revealing the merger of two black holes, was made ...

In particular, the astronomical observatories maintained for religious purposes became accurate enough to ascertain the r Einstein's equations predict that time should be altered by the presence of [[gravitational fields]] (see the [[Schwarzschild metric]]): ...

...21 | title=A Search for Low-energy Neutrinos Correlated with Gravitational Wave Events GW 150914, GW 151226, and GW 170104 with the Borexino Detector | yea [[Category:Neutrino observatories]] ...

...the surface of the Earth.<ref>{{Cite web |title=Museo Galileo - In depth - Gravitational acceleration |url=https://catalogue.museogalileo.it/indepth/GravitationalAc ...rier-1935" /> According to [[Alexis Clairaut]], the study of variations in gravitational acceleration was a way to determine the [[figure of the Earth]], whose cruc ...

{{short description|List of gravitational wave detections}} ...of gravitational waves.svg|thumb|The first measurement of a gravitational wave event]] ...

...known to be outside of our physical models. Speculating about an initial [[gravitational singularity]] is not sensible: the conditions are outside of the range of t ...m fluctuations could lead to some regions becoming dense enough to undergo gravitational collapse, forming black holes. ...

...o astronomy]], a '''fast radio burst''' ('''FRB''') is a transient [[Radio wave|radio]] pulse of length ranging from a fraction of a [[millisecond]], for a ...Milky Way. Known FRB locations are biased by the parts of the sky that the observatories can image. ...

...d the gas pressure is insufficient to support it, the cloud will undergo [[gravitational collapse]] and fragments into smaller clouds of about stellar mass. Such st ...of the disk. In this dense layer particles can grow by [[Jeans instability|gravitational instability]] and [[streaming instability]] to km-sized planetesimals.<ref ...

...led that the third planet was in fact multiple planets. The telescopes and observatories involved were{{sfn|Turbet|Bolmont|Bourrier|Demory|2020|p=2}} the [[Spitzer ...n|Wilson|Froning|Duvvuri|France|2021|p=1}} There are no detectable [[radio wave]] emissions.{{sfn|Pineda|Hallinan|2018|p=7}} ...

*'''[[Nikolai Kondratiev]]''', discoverer of the [[Kondratiev wave]]s ...veloped a method for measurement of [[stellar rotation]], directed several observatories in the US ...