BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Osservatorio Astronomico di Roma - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Osservatorio Astronomico di Roma
X-ORIGINAL-URL:https://www.oa-roma.inaf.it
X-WR-CALDESC:Eventi per Osservatorio Astronomico di Roma
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Rome
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20180325T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20181028T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20190331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20191027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20200329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20201025T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20191022T114500
DTEND;TZID=Europe/Rome:20191022T124500
DTSTAMP:20260502T075212
CREATED:20191007T104849Z
LAST-MODIFIED:20191008T082548Z
UID:6886-1571744700-1571748300@www.oa-roma.inaf.it
SUMMARY:Linear spectropolarimetry in stars different than the Sun: what can we learn?
DESCRIPTION:Polarimetry is considered as an important searching tool in Astronomy and it deserves to be a standard observational technique for a variety of astrophysical contexts: from stellar photospheric inhomogeneities to protoplanetary nebulae\, as well as in the exoplanet research field. Despite this\, however\, the difficulties involved in the measurements and in the theoretical interpretation made this technique not as widespread as it deserves. In this talk I will review the results of my research about the diagnostic potential of optical high resolution linear spectropolarimetry in stars different than the Sun.  At this purpose\, after an introduction on the observational technique\, I will focus on the polarised spectrum of the post-AGB binary system 89 Herculis: from the very inner regions of the stellar envelope to the first observational evidence of a micro-Gauss level magnetic field. Finally\, I will discuss on the applicability and future prospect of this technique in the more general context of stellar physics.
URL:https://www.oa-roma.inaf.it/event/colloquium-manuele-ganci/
LOCATION:Aula Gratton
CATEGORIES:Seminari
END:VEVENT
END:VCALENDAR