BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//ZContent.net//ZapCalLib 1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20230321T124000
DTEND;TZID=Atlantic/Canary:20230321T134000
UID:iactalks-1669
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1669
CREATED:2023-03-21T12:40:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:FS CMa stars: overlooked channel of mergers
DESCRIPTION:FS CMa stars: overlooked channel of mergers\nDrs. Daniela Korka
 cova\n\nFS CMa stars are a subgroup of the B[e] stars. The forbidden emiss
 ion lines and infrared excess are present in their spectra. This is a sign
  of very extended circumstellar region. While the B[e] phenomenon has been
  explained for other B[e] groups, the nature and evolutionary status of FS
  CMa stars has not been explained. Recently, we discovered very strong mag
 netic field in one of FS CMa stars, IRAS 17449+2320. The strength of the m
 agnetic field modulus, about 6.2 kG, is in the order of the strongest Ap s
 tars. The magnetic field together with other properties point to the post-
 merger origin of IRAS 17449+2320. It is very likely that other post-merger
 s are hidden among FS CMa stars.The first results of our new N-body simula
 tions show that more than half of mergers occurs in B-type stars. In other
  words, we are overlooking the most frequent channel of the mergers. This 
 may have an important consequence for the enrichment of the ISM by heavier
  elements. Especially important it may be in the early universe.
END:VEVENT
END:VCALENDAR