BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-4106
DTSTART:20160303T211500Z
DTEND:20160303T230000Z
DTSTAMP:20260314T083019Z
LAST-MODIFIED:20160223T151049Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:15\, Talk at 3:30 P
 M
SUMMARY:Quantitative Polarimetry: From Star Formation to Cosmological 
 Studies\, Astronomy Colloquium\, Thiem Hoang\, CITA
DESCRIPTION:We are entering a golden age of dust polarimetry with nume
 rous CMB experiments (e.g.\, SPIDER\, BICEP/Keck\, LiteBIRD) hunting f
 or primordial gravitational waves through B-mode polarization\, and a 
 dozen of big instruments designed to elucidate the roles of magnetic f
 ields in star formation through submm/mm polarization (e.g.\, SOFIA\, 
 SMA\, ALMA). The correct determination of B-mode signal\, as well as r
 eliable understanding of magnetic fields in star formation\, are only 
 achieved when we have a quantitative treatment of dust polarization. I
 n this talk\, first\, I will present our recent works on quantifying t
 he polarization of spinning dust emission and magnetic dust emission. 
 Second\, I will present our quantitative theory of grain alignment\, p
 hysical modeling of dust polarization with our theory\, and comparison
 s with observational data. Then\, I will discuss our ongoing efforts t
 o construct an accurate physical modeling of dust polarization needed 
 for reliable component separation in cosmic microwave background polar
 ization experiments. Finally\, I will discuss our numerical simulation
 s of dust polarization in molecular clouds\, which will shed light on 
 the roles of magnetic fields in star formation.<br>
\n
URL:https://www.physics.wisc.edu/events/?id=4106
END:VEVENT
END:VCALENDAR