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Star Cluster Formation: Mapping the First Few Myrs Programme

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Star Cluster Formation: Mapping the First Few Myrs Programme STAR CLUSTER FORMATION: MAPPING THE FIRST FEW MYRS PROGRAMME 29-31 AUGUST 2018 GRENOBLE The SFM project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 687528. WELCOME TO GRENOBLE We welcome colleagues to this 2.5-days workshop on the formation and early evolution of star clusters held in Grenoble, 29-31 August 2018. This workshop will provide a forum for the star formation community to discuss the big issues of this field. Combining observation and theory, and with a particular emphasis on results obtained from Gaia DR2, topics will include: initial conditions of stars and gas in stellar cluster formation; spatial and kinematic properties of newly formed/active massive star cluster regions, open clusters and stellar associations; and early dynamical evolution and simulations of massive star cluster regions. This is the second workshop hosted by the StarFormMapper (SFM) project, an EU Horizon2020 funded collaboration between the University of Leeds, University of Cardiff, University Grenoble Alps and Quasar Science Resources SL. The key aim of the project is to combine state-of-the-art numerical simulations with data from Gaia and Herschel and ground based surveys to constrain the mechanisms that underlie massive star and star cluster formation. Taken collectively, these facilities cover all stages from the formation of molecular cores, through the formation of stars, to the dispersal of the gas in young clusters. We are developing new automated statistical techniques to extract the full scientific value of these combined data, that will eventually be released as common user tools to the community. Our scientific results will underpin the study of how all galaxies evolve. COMMITTEES LOCAL ORGANISING COMMITTEE Pouria Khalaj (IPAG, France) Estelle Moraux (IPAG, France) Patricia Grant (University of Leeds, UK) SCIENTIFIC ORGANISING COMMITTEE Emilio Alfaro (IAA, Spain, Co-Chair) Estelle Moraux (IPAG, France, Co-Chair) Pouria Khalaj (IPAG, France) Anne Buckner (University of Leeds, UK) CONTENTS 1 VENUE 2 PROGRAMME 2 Wednesday 29th 3 Thursday 30th 4 Friday 31st 5 ABSTRACTS 6 Session 1: Molecular Clouds and Protocluster Observations 9 Session 2: Modelling and Hydrodynamical Simulations of Stellar Cluster Formation 11 Session 3: Spatial and Kinematic Structure of Star Clusters 14 Session 4: Star Clusters with the Gaia DR2 Data 17 Session 5: Modelling and Simulations of Early Cluster Evolution 19 PUBLIC LECTURE 20 WORKSHOP POSTER 0 VENUE The IMAG building located on the Grenoble University campus (one of the most beautiful in France). To go there from downtown, you can either take the tramway B or C and stop at the tram station “Gabriel Fauré” (see map below). The tram tickets can be bought at any tram station (for about 1.50 euros each). 1 PROGRAMME Wednesday 29 August Workshop Venue: Bâtiment IMAG – Université Grenoble Alpes, 700 avenue Centrale – Domaine Universitaire, 38401 St Martin d’Hères – France 08:45 – 09:15 Registration 09:15 – 09:30 Introduction (Estelle Moraux) Session 1: Molecular Clouds and Protoclusters Observations 09:30 – 10:05 A Galaxy-wide View of Star Formation (James Urquhart) 10:05 – 10:25 The role of spiral arms in Milky Way star formation (Sarah Ragan) Complex dynamics at the edge of the Monoceros OB1 molecular cloud 10:25 – 10:45 (Julien Montillaud) 10:45 – 11:15 Coffee break An ALMA view of Sagittarius B2: a progenitor of a super star cluster? 11:15 – 11:35 (Alvaro Sanchez-Monge) 11:35 – 11:55 Characterizing the high-mass protoclusters in NGC 6334 (Mahya Sadaghiani) Challenging the relation between cores masses and stellar masses: from 11:55 – 12:15 W43-MM1 to the ALMA- IMF large program (Frédérique Motte) 12:15 – 13:00 Discussion 13:00 – 14:30 Lunch Session 2: Modelling and Hydrodynamical Simulations of Stellar Cluster Formation Star cluster formation: structure, kinematics, and stellar properties 14:30 – 15:05 (Matthew Bate) 15:05 – 15:25 Galactic Flows and the formation of stellar clusters (Ian Bonnell) 15:25 – 15:45 Volume-Density-Driven Star Formation in the Galaxy (Geneviève Parmentier) 15:45 – 16:15 Coffee break Simulating photoionization and radiation pressure feedback from massive 16:15 – 16:35 stars in clusters (Ahmad Ali) 16:35 – 16:55 The binary fraction and CMF in star-forming regions (Christian Boily) Establishing Star Formation Scenarios Using Protoplanetary Disc Fractions: 16:55 – 17:15 The Case of Cygnus OB2 (Andrew Winter) 17:15 – 18:00 Discussion Public talk (French): La naissance des étoiles et des planètes (J. Bouvier) 18:30 – 19:30 Venue: Maison du tourisme 2 Thursday 30 August Workshop Venue: Bâtiment IMAG – Université Grenoble Alpes, 700 avenue Centrale – Domaine Universitaire, 38401 St Martin d’Hères – France Session 3: Star Formation from Stellar Clusters Observations Written in the stars: clues to the initial conditions of star formation 09:15 – 09:50 (Richard Parker) 09:50 – 10:10 Revealing the innards of a star cluster in the making (Morten Andersen) Uncovering the Evolution of Clustered and Dispersed Star Formation Across the 10:10 – 10:30 Serpens Molecular Complex (Marc Pound) 10:30 – 11:00 Coffee break 11:00 – 11:20 Gould Belt Clouds: Distances and Insights into YSO Kinematics (Lee Mundy) Revealing kinematic substructure in young stellar clusters with Gaia DR2 11:20 – 11:40 (Tristan Cantat-Gaudin) Not all stars form in clusters: measuring the kinematics of OB associations with 11:40 – 12:00 Gaia (Jacob Ward) 12:00 – 12:45 Discussion 12:45 – 14:15 Lunch Session 4: Characterisation of Spatial and Kinematic Structures of Star Clusters 14:15 – 14:50 Star clusters in the Gaia second data release (Antonella Vallenari) 14:50 – 15:10 Distance and kinematic of star forming regions (Sergio Dzib) At the edge of molecular clouds: uncovering their 3D spatial structure with 15:10 – 15:30 GAIA (Isabelle Joncour) 15:30 – 16:00 Coffee break 16:00 – 16:20 Quantifying velocity structure in star forming regions (Becky Arnold) Modelling the structure of star clusters with fractional Brownian motion 16:20 – 16:40 (Olivier Lomax) Dancing Clusters: Quantitatively Tracing Spatial Evolution and the 16:40 – 17:00 Morphological Features of YMCs (Anne Buckner) 17:00 – 17:45 Discussion Dinner 20:00 Venue: Restaurant du Téléférique 3 Friday 31 August Workshop Venue: Bâtiment IMAG – Université Grenoble Alpes, 700 avenue Centrale – Domaine Universitaire, 38401 St Martin d’Hères – France Session 5: Modelling and Simulations of Early Cluster Evolution 09:15 – 09:50 Early cluster evolution (Pavel Kroupa) Observational constraints on clustered star formation: a more complete 09:50 – 10:10 picture of clustered star formation emerging (Suzanne Pfalzner) Constraining the birth conditions of star clusters by the present-day 10:10 – 10:30 parameters (Hosein Haghi) 10:30 – 11:00 Coffee break 11:00 – 11:20 Simulation of binaries properties in a fragmented cluster (Timothé Roland) A model for the environmental variation of the minimum cluster mass and its 11:20 – 11:40 implications for globular cluster formation from Fornax to ultra-diffuse galaxies (Sebastian Trujillo-Gomez) 11:40 – 12:25 Discussion 12:25 – 12:35 Final remarks 4 ABSTRACTS 5 SESSION 1: MOLECULAR CLOUDS AND PROTOCLUSTER OBSERVATIONS James Urquhart (Invited Talk) A Galaxy-wide View of Star Formation The strong correlation between star-forming regions and the spiral arms observed in studies of nearby spiral galaxies points to a strong connection between the large-scale dynamics of a galaxy and the star formation taking place on smaller scales. This has led to the view of galaxies being engines of star formation. In this invited review talk I will discuss the current state-of-the-art molecular line and dust continuum observational programmes that are providing a global view of star formation in the Milky Way. I will start by discussing how dust continuum surveys are being used to identify large representative samples of dense clumps (~1 pc) within giant molecular clouds (GMCs) where clusters begin their lives. I will then describe how molecular line surveys are being used to link these localised regions to their parent GMCs and investigate the connection between the large-scale dynamics of the Galaxy (e.g., spiral arms, Galactic bar) and the star formation taking place on smaller scales. We will also discuss how the results of these studies of the earliest stages of star-formation can provide constraints for cluster formation models. Sarah Ragan The role of spiral arms in Milky Way star formation The Herschel Infrared Galactic Plane Survey (Hi-GAL) covers the peak of the spectral energy distribution of dense, cold dust and thus supplies an essential part of the observational description of the conditions necessary for star formation in the Milky Way. With a new catalogue of over 100000 compact Hi-GAL sources, we examine how star formation varies with Galactocentric radius and proximity to spiral arms. We revisit some long-standing questions about the effect Galactic properties have on star formation on parsec scales. Julien Montillaud Complex dynamics at the edge of the Monoceros OB 1 molecular cloud Mon OB1 is one of the most massive (4x10^4 Msun) star forming complexes in the first kpc from the Sun. It hosts NGC 2264; an open cluster containing more than 1000 young stars; with age estimates scattered between 0.1 and 5 Myr; suggesting a sustained star formation activity. As part of the ""Galactic cold cores"" project, we have mapped the northern tip of the eastern molecular cloud of Mon OB1 with Herschel, revealing a complex network of intertwined filaments with decreasing star formation activity as one looks further from NGC 2264. A molecular follow- up at IRAM 30m revealed that the region is even more complex than suggested by dust continuum observations, and suggest possible collision or merging of different loops and filaments in the region also corresponding to the most active star forming clump in this area.
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