[Hadstruct] [EXTERNAL] Fw: announcements tomorrow

[Monahan, Christopher]

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Chris Monahan
Pronouns: he/his
Assistant Professor
Department of Physics
William & Mary
757-221-2081
________________________________
From: Sher, Marc <mtsher at wm.edu>
Sent: 28 June 2023 10:42
To: physics2017 at physics.wm.edu <physics2017 at physics.wm.edu>
Subject: announcements tomorrow

Dear colleagues -

There will be two major announcements tomorrow.

At 1:00 (Eastern), Nanograv will make a major announcement.  It will be at https://urldefense.proofpoint.com/v2/url?u=https-3A__nanograv.org_news_2023Announcement&d=DwIFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=phC8jtUHUVIl1OXaA25HKnc5L16EvLwhrqx4rXYGPWA&m=3jD5S2VOmVadIkFSUUbh1q6X07_A7GeGyJ0CzXrYzN60NOzDWdrgv8ELYwZErX_6&s=biiznjoVBnIBcnvi9wrmZ2HfgpvUdgEw4EOFyIK73ds&e= 

The expectation (hope?) is that they will announce a 5-sigma discovery of gravitational waves in the nanoHertz frequency range.   This uses a network of pulsars to provide precise clocks and looks for variations as gravitational waves pass by.    The inverse of a nanoHertz is 30 years, so this would correspond to the merger of supermassive black holes (which are typically inner solar-system size).

At 2:00, IceCube will make an announcement at https://urldefense.proofpoint.com/v2/url?u=https-3A__icecube.wisc.edu_news_collaboration_2023_06_icecube-2Dwebinar-2D2_&d=DwIFAg&c=CJqEzB1piLOyyvZjb8YUQw&r=phC8jtUHUVIl1OXaA25HKnc5L16EvLwhrqx4rXYGPWA&m=3jD5S2VOmVadIkFSUUbh1q6X07_A7GeGyJ0CzXrYzN60NOzDWdrgv8ELYwZErX_6&s=_cwd7mfHG-it9qWgBp9mnz8SzDB2GsYu9t0NvfrmZNw&e= 

This is the large roughly cubic kilometer detector in the Antarctic ice at the South Pole.  They are sensitive to very high energy neutrinos, among other things.  I have heard no rumors about what they are going to say.

Marc

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