[Jlab-seminars] Fwd: Physics Colloquium - March 23, “A Galactic Scale Gravitational Wave Observatory"

[Mary Fox]

-------- Forwarded Message --------
Subject: 	Physics Colloquium - March 23, “A Galactic Scale Gravitational 
Wave Observatory"
Date: 	Mon, 19 Mar 2018 19:13:40 +0000
From: 	Wilkinson, Ellie V <evwilk at wm.edu>
To: 	physics2017 at physics.wm.edu <physics2017 at physics.wm.edu>
CC: 	undergrads2017 at physics.wm.edu <undergrads2017 at physics.wm.edu>



*_PHYSICS COLLOQUIUM_*

Friday, March 23, 2018

4:00 PM

Small Hall, Room 111

*Maura McLaughlin****[ *Host: D. Armstrong]**

West Virginia University
*
Title of Talk: **“A Galactic Scale Gravitational Wave Observatory”***

**

*_


_**_Abstract:_**__*

Pulsars are rapidly rotating neutron stars with phenomenal rotational 
stability that can be used as celestial clocks in a variety of 
fundamental physics experiments. One of these experiments involves using 
an array of precisely timed millisecond pulsars to detect perturbations 
due to gravitational waves at much lower frequencies than those probed 
by LIGO. The gravitational waves detectable through pulsar timing will 
most likely result from an ensemble of supermassive black hole 
binaries.  I will describe the efforts of the North American Nanohertz 
Observatory for Gravitational Waves (NANOGrav), a collaboration which 
monitors an array of over 70 millisecond pulsars with the Green Bank 
Telescope and Arecibo Observatory. The most recent limits on various 
types of gravitational wave sources will be presented, and I will show 
how these limits are already constraining models for galaxy formation 
and evolution. I will then describe the dramatic gains in sensitivity 
that are expected from discoveries of millisecond pulsars, more 
sensitive instrumentation, improved detection algorithms, and 
international collaboration and show that detection is possible before 
the end of the decade.

*/Cookies & Coffee will be served in Small 122 at 3:30pm/*

******

*Eleonor V. Wilkinson*

Administrative & Office Specialist

William & Mary-Physics
Small Hall, Room 123
300 Ukrop Way
Williamsburg, VA 23185

Telephone: 757-221-3503

Fax: 757-221-3540

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