Conveners
The Smallest Scales of Star Formation
- Daniela Calzetti (UMASS)
- Angela Adamo (Stockholm University)
- Arjan Bik (Stockholm University)
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Ralf Klessen (Heidelberg University, Center for Astronomy)22/08/2016, 09:45Stars and star clusters are the fundamental visible building blocks of galaxies at present days as well as in the early universe. They form by gravitational collapse in regions of high density in the complex multi-phase interstellar medium (ISM). The process of stellar birth is controlled by the intricate interplay between the self-gravity of the star-forming gas and various opposing...Go to contribution page
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Steve Longmore (Liverpool John Moore University)22/08/2016, 11:15The formation environment of stars in massive, dense stellar clusters is similar to the environment of stars forming in galaxies at a redshift of 1 - 3, at the peak star formation rate density of the Universe. As massive clusters are still forming at the present day at a fraction of the distance to high-redshift galaxies they offer an opportunity to understand the processes controlling...Go to contribution page
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Alex Hygate (Max Planck Institute of Astronomy (MPIA)/Astronomisches Rechen-Institut, University of Heidelberg (ARI/ZAH), Heidelberg, Germany)22/08/2016, 12:00In this contribution, I will discuss a new method of observationally measuring the key quantities describing the cloud-scale physics of star formation and feedback, such as the cloud lifetime, feedback timescale, star formation efficiency, mass loading factor, etc. (Kruijssen & Longmore, 2014). This method for the first time allows us to probe these physics over a large galaxy sample and...Go to contribution page
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Paul Clark (Cardiff University)22/08/2016, 12:20The timescale over which GMCs form and disperse sets the timescale for star formation. Until recently, most observational studies of GMCs have focused on the molecular tracers, which are good probe of the cool interiors of the clouds, but have a limited ability to trace the dynamics of the transition to the warm neutral medium (WNM). In this study, we assess the ability of [CII]...Go to contribution page
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Daniel Haydon (Astronomisches Rechen-Institut, University of Heidelberg (ARI/ZAH), Germany)22/08/2016, 12:40A major problem in star/cluster formation and feedback is to constrain the cloud-scale physics across galactic environment and cosmic time. A promising solution has been put forward by Kruijssen & Longmore (2014), who present a statistical method for measuring ill-constrained cloud-scale quantities such as the cloud lifetime, star formation / feedback time-scales, star formation...Go to contribution page
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Diederik Kruijssen (Heidelberg University (ARI/ZAH))22/08/2016, 14:30Stellar clusters are a fundamental (by)product of the galactic-scale star formation process. I will discuss how recent theoretical insights in cluster formation and evolution have led to a unified understanding of stellar clustering across cosmic time, from local open clusters and associations to old globular cluster populations. I will conclude by discussing our recent work on the...Go to contribution page
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Angela Adamo (Stockholm University)22/08/2016, 15:15
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Kathryn Grasha (University of Massachusetts)22/08/2016, 15:35A turbulent interstellar medium will drive the hierarchical nature of star formation, resulting in a smoothly varying distribution of substructure, where bound star clusters occupy the smallest, densest regions. We use young stellar clusters to trace the unbound hierarchical star-forming structures for several nearby galaxies drawn from the Legacy ExtraGalactic UV Survey (LEGUS). We...Go to contribution page
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Matteo Messa (Stockholm University)22/08/2016, 16:25While star formation has been long studied on the single-star scale and on the galaxy scale, the link between these two widely separated scales still needs to be firmly established. We use the new high-resolution NUV and U band HST observations from LEGUS (Legacy Extra Galactic UV Survey) to study the nearby interacting spiral galaxy M51 at the intermediate scale of the star cluster...Go to contribution page
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Jay Gallagher (Dept of Astronomy, University of Wisconsin-Madison)22/08/2016, 16:45This talk will briefly review patterns of star formation in NGC 1275, the brightest galaxy in the Perseus cluster. NGC 1275 is of special interest as it contains examples of unusual modes of star formation in a complex environment. Young massive star clusters detected via HST UV imaging are associated with gaseous filaments that are arrayed over 10s of kpc around the center of the...Go to contribution page