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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20171031T123000
DTEND;TZID=Atlantic/Canary:20171031T133000
UID:iactalks-1068
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1068
CREATED:2017-10-31T12:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:3D Spectroscopy of resolved stellar populations in NGC300, observed
  with MUSE at the VLT
DESCRIPTION:3D Spectroscopy of resolved stellar populations in NGC300, obse
 rved with MUSE at the VLT\nDr. Martin Roth\n\nAlready a decade ago, the Ad
 vanced Camera for Surveys Nearby Galaxy Survey Treasury (ANGST) has provid
 ed spectacular images and photometry of individual stars in nearby galaxie
 s, with the expectation to gain deep insight into star formation histories
  and the chemical evolution of galaxies. However, the known limitations of
  photometry have remained an obstacle to fully exploit the angular resolut
 ion of HST in analyzing resolved stellar populations in galaxies such as t
 he sculptor group galaxy NGC300. We have selected NGC300 as the target of 
 our MUSE GTO program at the VLT to explore the potential of IFUs for crowd
 ed field 3D spectroscopy, utilizing PSF-fitting techniques. With the input
  of stellar centroids obtained from the ANGST catalogue, we are demonstrat
 ing that the PampelMuse PSF-fitting tool is capable of extracting more tha
 n 500 spectra for individual stars of luminosity class I-III from a single
  MUSE pointing (1.5 h exposure time). These spectra are well deblended and
  allow for spectral type classification and the measurement of radial velo
 cities. Next to stars of spectral types O…M, we find numerous carbo
 n stars, blue emission line stars, LBV and symbiotic star candidates, and 
 other rare objects. The excellent image quality and sensitivity of MUSE ha
 s also enabled the discovery of extremely faint HII regions, planetary neb
 ulae, supernova remnants, and substructure of the diffuse ionized gas (DIG
 ). 
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