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SUMMARY:Webinar: Planck dust polarization measurements\, and impact on the
  BICEP2 gravitational waves result
DTSTART;VALUE=DATE-TIME:20141125T140000Z
DTEND;VALUE=DATE-TIME:20141125T150000Z
DTSTAMP;VALUE=DATE-TIME:20261013T040202Z
UID:indico-event-2378@indico.ific.uv.es
DESCRIPTION:\n    In March 2014\, the BICEP2 team sensationally claimed th
 e first detection of primordial gravitational waves imprinted in the polar
 ization of the Cosmic Microwave Background. It has soon been noted how tha
 t result lacked in control of possible contamination from inter-stellar du
 st in our Galaxy\, due to absence of data. The Planck space telescope is n
 ow presenting the missing data: a map of the polarization generated by gal
 actic dust\, obtained by its unique 353 GHz polarization sensitive channel
 . This map is used to calculate the dust polarization angular power spectr
 a. We show that even in the faintest dust-emitting regions there are no "c
 lean" windows in the sky where primordial CMB B-mode polarization measurem
 ents could be made without subtraction of foreground emission. In particul
 ar\, Planck team is measuring a possible contamination of the BICEP2 resul
 t as large as their detection. In this seminar\, I present the last Planck
  result\, and the status of this rapidly evolving research activity.\n\nht
 tps://indico.ific.uv.es/event/2378/
LOCATION:IFIC retransmitted from Seminar Room\, 1.1.1
URL:https://indico.ific.uv.es/event/2378/
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