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Proof of Inflationary Universe To Be Announced Monday?
Rumors are racing through the physics and cosmology communities this weekend that long-sought, Nobel Prize-worthy evidence for cosmic inflation driving the Big Bang will be announced on Monday. A press conference for an unspecified "major discovery" is scheduled for noon EDT (16:00 UT) at the Harvard-Smithsonian Center for Astrophysics, just up the street from Sky & Telescope. We'll be there.
theguardian - Gravitational waves: have US scientists heard echoes of the big bang?
There is intense speculation among cosmologists that a US team is on the verge of confirming they have detected "primordial gravitational waves" – an echo of the big bang in which the universe came into existence 14bn years ago ... that would change the face of cosmology and particle physics.
The signal is rumoured to have been found by a specialised telescope called Bicep (Background Imaging of Cosmic Extragalactic Polarization) at the south pole. It scans the sky at microwave frequencies, where it picks up the fossil energy from the big bang.
For decades, cosmologists have thought that the signature of primordial gravitational waves could be imprinted on this radiation. "It's been called the Holy Grail of cosmology," says Peiris, "It would be a real major, major, major discovery.... The primordial gravitational waves have long been thought to be the smoking gun of inflation. It's as close to a proof of that theory as you are going to get." This is because cosmologists believe only inflation can amplify the primordial gravitational waves into a detectable signal.
Primordial Gravitational Waves?
BICEP
Background Imaging of Cosmic Extragalactic Polarization (BICEP) is a cosmic microwave background (CMB) experiment. It has had three generations of instrumentation, consisting of BICEP1, BICEP2 and the Keck Array. The purpose of the BICEP experiment is to measure the polarization of the CMB. Specifically, it aims to measure the B-modes (curl component) of the polarization of the CMB. BICEP operates from the Amundsen–Scott South Pole Station.
Rumours started in March 2014 that BICEP have detected B-modes from gravitational waves in the early universe. An announcement is due on the 17th March from Harvard–Smithsonian Center for Astrophysics.
Na schaun wir mal, hoffentlich ist das nicht wieder mal eine Ausgeburt von wunschvollem Denken. Das ist ja bei Kosmologen ein notorisches Übel ...
Rumors are racing through the physics and cosmology communities this weekend that long-sought, Nobel Prize-worthy evidence for cosmic inflation driving the Big Bang will be announced on Monday. A press conference for an unspecified "major discovery" is scheduled for noon EDT (16:00 UT) at the Harvard-Smithsonian Center for Astrophysics, just up the street from Sky & Telescope. We'll be there.
theguardian - Gravitational waves: have US scientists heard echoes of the big bang?
There is intense speculation among cosmologists that a US team is on the verge of confirming they have detected "primordial gravitational waves" – an echo of the big bang in which the universe came into existence 14bn years ago ... that would change the face of cosmology and particle physics.
The signal is rumoured to have been found by a specialised telescope called Bicep (Background Imaging of Cosmic Extragalactic Polarization) at the south pole. It scans the sky at microwave frequencies, where it picks up the fossil energy from the big bang.
For decades, cosmologists have thought that the signature of primordial gravitational waves could be imprinted on this radiation. "It's been called the Holy Grail of cosmology," says Peiris, "It would be a real major, major, major discovery.... The primordial gravitational waves have long been thought to be the smoking gun of inflation. It's as close to a proof of that theory as you are going to get." This is because cosmologists believe only inflation can amplify the primordial gravitational waves into a detectable signal.
Primordial Gravitational Waves?
BICEP
Background Imaging of Cosmic Extragalactic Polarization (BICEP) is a cosmic microwave background (CMB) experiment. It has had three generations of instrumentation, consisting of BICEP1, BICEP2 and the Keck Array. The purpose of the BICEP experiment is to measure the polarization of the CMB. Specifically, it aims to measure the B-modes (curl component) of the polarization of the CMB. BICEP operates from the Amundsen–Scott South Pole Station.
Rumours started in March 2014 that BICEP have detected B-modes from gravitational waves in the early universe. An announcement is due on the 17th March from Harvard–Smithsonian Center for Astrophysics.
Na schaun wir mal, hoffentlich ist das nicht wieder mal eine Ausgeburt von wunschvollem Denken. Das ist ja bei Kosmologen ein notorisches Übel ...