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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20120424T000000
DTEND;TZID=Atlantic/Canary:20120424T010000
UID:iactalks-382
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/382
CREATED:2012-04-24T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Spectroscopic Madness - The ProAm WR 140 campaign in 2009/10
DESCRIPTION:Spectroscopic Madness - The ProAm WR 140 campaign in 2009/10\nD
 r. Thomas Eversberg\n\nGolden Age of Astronomy” does not only influe
 nce professional but also amateur astronomy. Today, amateurs basically use
  the same technologies as the professionals. This includes the most import
 ant tool – spectroscopy. There is an important gap in professional a
 stronomical spectroscopy which can be filled by amateurs and their smaller
  telescopes. Some stellar phenomena need longer time coverage, of order, e
 .g., some weeks. This is especially valid for binary stars. One such inter
 esting target is Wolf-Rayet 140, a WR+O binary with a highly eccentric orb
 it and a period of about 8 years. The observation of its periastron passag
 e in the visible wavelength range is valuable for measurements in other wa
 velength domains to understand the wind-wind shock interaction of both com
 ponents and the global geometry and physics of the system. For this and so
 me other massive star targets, a group of amateur and professional astrono
 mers performed a successful campaign for 116 nights at the 50 cm Mons tele
 scope at Teide observatory, supported by the IAC and embedded in a joint w
 orldwide X-ray, visual and IR campaign. The group of observers was a mix o
 f enthusiastic astronomers from various professions (e.g., physicists, a p
 hysics student, a chemist, a physician, a schoolboy, a pilot) but they all
  have been experienced and enthusiastic observers. The talk will highlight
  the most important results of this campaign
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