Conveners
Star Formation Properties in The Local Universe
- Nils Bergvall (Uppsala University)
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Amelie Saintonge (University College London)25/08/2016, 09:00Over the past 5 years, it has become possible to assemble measurements of molecular gas in large samples of normal star-forming galaxies up to z=2. These observations have been key in establishing the currently favoured model for galaxy evolution, which is centered around the cycling of gas in and out of galaxies and the efficiency of the star formation process. While star formation is a...Go to contribution page
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Kathryn Kreckel (MPIA)25/08/2016, 09:45While spiral arms are the most prominent sites for star formation in disk galaxies, interarm star formation contributes significantly to the overall star formation budget. However, it is still an open question if the star formation proceeds differently in the arm and inter-arm environment. We use deep VLT/MUSE optical IFU spectroscopy to resolve and fully characterize the physical...Go to contribution page
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Abdurrouf Abdurrouf (Astronomical Institute, Tohoku University)25/08/2016, 10:05According to Lambda CDM paradigm of hierarchical galaxy formation, galactic disks were form gradually from inside to outside (“inside-out” scenario of galaxy formation). In spite of this being a long-known prediction, but very few observational evidences have been brought forward to support it. In order to sought the indication of this “inside-out” scenario in the local universe and also...Go to contribution page
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Quentin SALOME (LERMA, Observatoire de Paris)25/08/2016, 10:25Recent studies suggest that AGN can regulate the gas accretion and thus slow down star formation (negative feedback). However, evidence of AGN positive feedback is also invoked in a few radio galaxies (eg. Centaurus A, Minkowski's Object, 3C 285, ...). I will present a multi-wavelength study of the northern filaments of Centaurus A. These filaments of gas and young stars extend...Go to contribution page
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Isadora Chaves Bicalho (Observatoire de Paris)25/08/2016, 11:15The spatially resolved star formation law has been studied in great detail in galaxies in recent years. At high surface density, when most of the gas is molecular, the Kennicutt-Schmidt relation is almost linear providing a constant gas consumption time-scale of about 3Gyr (e.g Bigiel et al. 2011, Saintonge et al 2011). However the star formation efficiency (SFE) falls very quickly when...Go to contribution page
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Rodrigo Herrera-Camus (Max Planck Institute for Extraterrestrial Physics)25/08/2016, 11:35The [CII] 158 um and [NII] 122 and 205 um far-infrared transitions are powerful tracers of the neutral and ionized gas in the interstellar medium of local and high-z galaxies. In this talk I will discuss the ability of these lines to trace the star formation activity in a wide range of environments that include low metallicity, normal, star-forming galaxies, AGN, LIRGS and high-z...Go to contribution page
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Martin Roth (Leibniz Institute for Astrophysics Potsdam (AIP))25/08/2016, 11:55We present first results from a study of resolved stellar populations in the 2 Mpc distant sculptor group disk galaxy NGC300 using integral field spectroscopy with MUSE. From data cubes obtained under conditions of excellent seeing we are able to extract on the order of 1500 stellar spectra per pointing of 1.5 hours observing time, using the PampelMuse code that has already...Go to contribution page
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Karen Knierman (Arizona State University)25/08/2016, 12:25While major mergers and their tidal debris are well studied, equal mass galaxy mergers are relatively rare compared to minor mergers (mass ratio <0.3). Minor mergers are less energetic than major mergers, but more common in the observable universe, and thus likely played a pivotal role in the formation of most large galaxies. Tidal debris regions have large amounts of neutral gas but a...Go to contribution page
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Alton Padraig (Durham University)25/08/2016, 12:45Massive elliptical galaxies are thought to form in two stages - first, the formation of a central core via fast dissipative processes by z~2, followed by the accumulation of mass through (mostly minor) dry mergers. A combination of evidence from spectroscopy, lensing, and stellar dynamics appears to suggest that in the most massive central cores stars form according to a 'bottom-heavy' IMF...Go to contribution page