Thank you to all participants for a great conference!

Invited Speakers

Joana Ascenso (Porto)

Peter Berczik (Beijing)

Eugenio Carretta (Bologna)

Nicola Da Rio (Gainesville)

Walter Dehnen (Leicester)

Jan Forbrich (Wien)

Eva Grebel (Heidelberg)

Alvaro Hacar (Wien)

Ralf Klessen (Heidelberg)

Michael Kuhn (Valparaiso)

Michela Mapelli (Padova)

Karl Menten (Bonn)

Antonino Milone (Mt Stromlo)

Frederique Motte (Paris-Saclay)

Elena Sabbi (Baltimore)

Enrico Vesperini (Indiana)


Star cluster research is experiencing a very exciting decade. With the Atacama Large Millimeter / submillimeter Array and the Gaia astrometric satellite, we are now equipped to probe the full lifecycle of star clusters, from the properties of the molecular gas in which they form, to the properties of the stellar streams which dying clusters leave in their wake. To exploit fully and meaningfully these huge data flows, the active collaboration of observers and modellers is critically needed. What theoretical predictions are we able to make? What are the observable quantities? How well do we understand observational data?
     Moreover, the time is ripe for a hard look at the physical conditions leading to the formation of clusters in the Galaxy and the Magellanic Clouds, and their imprint on the long term evolution of clusters. Our aim is therefore also to bring together experts working on the formation of the cluster gaseous precursors with those studying the latest stages of cluster dissolution.
     Particular attention will be given to the first Gyr of cluster evolution, that is, the infancy and teenagehood of clusters. This is over that age range that most clusters in the Galactic disc dissolve and, therefore, the age range over which a good understanding of cluster mass-loss mechanisms is most critically needed. Moreover, this is by that cluster age that the intriguing multiple stellar populations of globular clusters have formed. A related question is thus whether their formation can be witnessed directly in massive clusters currently in their teenagehood, or whether a key role was played by the different environmental conditions at the time of their formation.

Topics / Key Dates

Key Dates

Abstract submission opens on:

Early registration opens on:

Abstract submission deadline
for contributed talks: 10.04.2016

SOC decision about talk/poster
allocation released: 09.05.2016

Early registration deadline:

Hotel block-reservation opens:

Hotel block-reservation closes:
4-to-6 weeks before arrival,
depending on the hotel

Refund of conference fee
no longer possible after:


  1. Star Clusters in the Making

    1. The relationship between molecular gas and
      pre-main-sequence stars: efficiency, density and rate of star formation, gas vs. star kinematics

    2. Star formation in clusters, associations and isolation: similarities and differences


  1. Cluster dissolution

    1. Gravitational potential of the Milky Way

    2. Criticality of the first Gyr: cluster mass function evolution, mass-independent vs. mass-dependent cluster dissolution

    3. Cluster lifecycle and the IMF

And of course topics that participants wish to bring to the front


  1. Star Clusters in the Making

    1. The molecular environment of cluster formation: from the outer Galactic disk to
      the Central Molecular Zone

    2. Molecular clouds / clumps / cores: (sub)structures, stability, lifetime, and
      the role of stellar feedback

    3. Finding the precursors to the next generation of clusters in the Galactic disk

  1. Multiple stellar populations in clusters

    1. Observational constraints ( spectroscopy / photometry )

    2. Models of multiple population formation
      ( gas retention / accretion, star abundances / dynamics, IMF influence, interplay with cluster survival )

    3. Multiple-population clusters in the Galaxy and Magellanic Clouds

    4. Mapping multiple-population stars in the field

Conference Information

Conference Venue

Max-Planck Haus
Gerhart-Hauptmann-Strasse 36
D-69120 Heidelberg

Nearest bus/tram-stops:
  • Bunsen-Gymnasium
    Bus 31 from Bismarckplatz and Universitätsplatz
  • Jahnstrasse
    Busses 32 and 24 from the Main Train Station; also bus 21 but not later than ca. 18:15
  • After getting off, follow Berliner- or Humboldt Strasse
  • Please note: lines 21 and 24 are normally tram-lines. Owing to a building site, however, trams 21 and 24 are, from the Main Train Station, towards the conference venue, substituted with busses (`Ersatzverkehr').

If the weather is fine, walking from the Main Train Station or Bismarckplatz is also a possibility

For maps of Heidelberg and its public transport network, see
Traveling to and Staying in Heidelberg

For any other information, please ask the reception of your hotel.

Talk Duration

Invited talks (35min in total):
      30min + 5min for discussions.
Contributed talks (20min in total):
      15min + 5min for discussions.

Poster Guidelines

Posters can be up to A0 (portrait) in size.
To enhance poster visibility, the SOC has planned two poster-viewing sessions of 30 minutes each. You will also have the opportunity to present your poster in one slide/one minute during a dedicated poster session on the first day of the conference.


We will not have proceedings but will collect talks and posters, and put them online after the meeting.

Conference Schedule

On-site registration starts at 8:15AM on 08.08.2016.

Registration / Abstract Submission / Financial Support


  • Late/On-site registration fee:

  • OnLine registration is now closed. Only onSite registration is possible.

Registration Fee Waiver for
PhD Students

  • We can waive the registration fee for about 10 students not coming from Heidelberg.

  • Interested students should email a motivated request (text only, no attached file, please) to

    with "Student Support" as the subject of their email (deadline: 30.04.2016).

  • Students accepting the registration fee waiver commit themselves to present either a poster or a talk (depending on the SOC decision) at the conference.

Conference Program

Day 1 - Monday 08.08.2016 (Morning)

08:15 - 09:30 Registration
09:30 - 09:40 Welcome Address
Invited talks are listed in red (total duration, including discussions: 35min)
Contributed talks are listed in blue (total duration, including discussions: 20min)
Session 1 Star Clusters in the Making
09:40 - 10:15 Ralf Klessen
(University of Heidelberg, Germany)
The Lifecycle of Molecular Clouds and the Formation of Stars
10:15 - 10:35 Corey S. Howard
(McMaster University, Canada)
Simulating Radiative Feedback and Star Cluster Formation in Giant Molecular Clouds: Dependence on Gravitational Boundedness
10:35 - 10:55 Amelia M. Stutz
(MPIA Heidelberg, Germany)
Beyond turbulence: a Fundamentally Different Mode of Star Cluster Formation in Orion
10:55 - 11:25 Coffee Break
11:25 - 12:00 Alvaro Hacar
(University of Vienna, Austria)
Molecular Cloud properties: an observational perspective
12:00 - 12:20 Massimo Robberto
(STScI, Baltimore, USA)
The HST/WFC3 Census of the Substellar Population of the Orion Nebula Cluster
12:20 - 12:40 Taran Esplin
(Penn State University, USA)
Searching for the Bottom of the IMF
12:50 - 14:25 Lunch break HeidelbergCement cantine - Make sure to have picked-up a lunch voucher at the registration desk

Day 1 - Monday 08.08.2016 (Afternoon)

Session 1 Star Clusters in the Making
14:25 - 15:00 Karl Menten
(MPIfR Bonn, Germany)
ATLASGAL - A Systematic Survey for Embedded Protoclusters in the Inner Galaxy
15:00 - 15:20 Vivien Chen
(National Tsing Hua University, Taiwan)
Magnetic Field Alignment in Massive Protoclusters
15:20 - 15:40 Marco Lombardi
(University of Milan, Italy)
Hunting Clusters Embedded in Molecular Clouds
15:40 - 16:10 Coffee Break
16:10 - 16:45 Frederique Motte
(IPAG, France)
The Formation of Massive Clusters and the Origin of their Stellar Mass Function
16:45 - 17:05 Morten Andersen
(Gemini Observatories, Chile)
Extended Star Formation in Westerlund 1
17:05 - 17:25 Nicolas Guillard
(University of München & ESO, Germany)
Nuclear Clusters In Their Infancy: A Bumpy Road
17:25 - 18:00 Poster presentations (1 slide per poster)
18:00 - 20:00 Welcome reception at the Max-Planck Haus
End of Day 1

Day 2 - Tuesday 09.08.2016 (Morning)

Session 1 Star Clusters in the Making
09:15 - 09:50 Jan Forbrich
(University of Vienna, Austria)
Bridging the Gap between Galactic and Extragalactic Star Formation Research: Schmidt's Conjecture and the Nature of SFR Scaling Relations
09:50 - 10:10 Geneviève Parmentier
(University of Heidelberg, Germany)
A Cautionary Note about Composite Galactic Star Formation Relations
10:10 - 10:30 Clifton Johnson
(University of California - San Diego, USA)
Insights on Star Cluster Formation from M31
10:30 - 11:00 Coffee Break
11:00 - 11:35 Joana Ascenso
(University of Porto, Portugal)
Star Formation in Galactic Giant Complexes
11:35 - 11:55 Kathryn Grasha
(University of Massachusetts, USA)
The Clustering of the Young Stellar Clusters in Nearby Galaxies
11:55 - 12:15 Sarah Jaffa
(University of Cardiff, UK)
Q+: A New Method for Quantifying Structure in Young Clusters
12:15 - 12:35 Michael A.D. Fellhauer
(Universidad de Concepcion, Chile)
The Survival Of Star Clusters - Latest News
12:45 - 14:25 Lunch break HeidelbergCement cantine - Make sure to have picked-up a lunch voucher at the registration desk

Day 2 - Tuesday 09.08.2016 (Afternoon)

Session 1 Star Clusters in the Making
14:25 - 15:00 Nicola Da Rio
(University of Gainesville, USA)
Orion: Our Testbed Of Star Formation
15:00 - 15:20 Nicole Karnath
(University of Toledo, USA)
Cep OB3b: An Expanding, Older ONC-like Cluster
15:20 - 15:40 Peter Zeidler
(University of Heidelberg, Germany)
The Spatial Variation of the Present Day Mass Function in Westerlund 2
15:40 - 16:10 Coffee Break
16:10 - 16:45 Michael Kuhn
(University of Valparaiso, Chile)
Observations of Mass Segregated Young Stellar Clusters
16:45 - 17:05 Alison Sills
(McMaster University, Canada)
The Evolution of Young Stellar Complexes in the Milky Way
17:05 - 17:35 Poster viewing
17:35 - 18:05 Discussions - Session 1 - Chair person: Tom Megeath
End of Day 2

Day 3 - Wednesday 10.08.2016 (Morning)

Session 2 Multiple Stellar Populations in Clusters
09:15 - 09:50 Eugenio Carretta
(INAF-Osservatorio Astronomico di Bologna, Italy)
Spectroscopic Evidence of Multiple Stellar Populations in Clusters
09:50 - 10:10 Anna Fabiola Marino
(Australian National University, Australia)
Chemical Abundances Along The Colour-Magnitude Diagram Of 47 Tucanae
10:10 - 10:30 Angela Bragaglia
(INAF-Osservatorio Astronomico di Bologna, Italy)
Observational Test Of The Minimum Cluster Mass And Age To Have Multiple Populations
10:30 - 11:00 Coffee Break
11:00 - 11:35 Antonino Milone
(Mt Stromlo Observatory, Australia)
Multiple Stellar Populations In Young, Intermediate-age, And Old Globular Clusters
11:35 - 11:55 Domenico Nardiello
(Università degli Studi di Padova, Italy)
Multiple Stellar Populations in Globular Clusters: Last Results
11:55 - 12:15 Clio Bertelli Motta
(University of Heidelberg, Germany)
Testing Stellar Evolution Models with APOGEE Observations of the Old Open Cluster M67
12:15 - 12:35 Donald M. Terndrup
(Ohio State University, USA)
How Well Does Stellar Rotation Inform Us About Winds, Mass Loss, and Star Formation?
12:35 - 12:40 Martin Netopil
(Masaryk University, Czech Republic)
A comment about the official IAU cluster commission (H4) newsletter SCYON
12:40 -            Free Afternoon
15:00 - 18:00 Neckar cruise (departure point: Kongresshalle; online-registration needed)
18:30 - 21:00 Conference Dinner at Heidelberger Kulturbrauerei (online-registration needed)
End of Day 3

Day 4 - Thursday 11.08.2016 (Morning)

Session 2 Multiple Stellar Populations in Clusters
09:15 - 09:50 Enrico Vesperini
(University of Indiana, USA)
Dynamics of Multiple Stellar Populations in Globular Clusters
09:50 - 10:10 Francesca D'Antona
(INAF-Osservatorio Astronomico di Roma, Italy)
Nature vs. nurture roles in the formation of multiple populations of Globular Clusters
10:10 - 10:30 Phillip Galli
(IPAG, France)
A Revised Moving-Cluster Distance to the Pleiades
10:30 - 11:00 Coffee Break
11:00 - 11:35 Eva Grebel
(University of Heidelberg, Germany)
Mapping Multiple Stellar Populations in the Field
11:35 - 11:55 Alessandra Mastrobuono Battisti
(MPIA Heidelberg, Germany)
Multiple Stellar Populations in Globular Clusters: Constraining their Origin using N-body Simulations
11:55 - 12:15 Rob Jeffries
(University of Keele, UK)
Mass Segregation, But No Equipartition: Gaia-ESO Observations of the Teenage Cluster NGC 2516
12:15 - 12:45 Poster viewing
12:45 - 14:25 Lunch break - Make sure to have picked-up a lunch voucher at the registration desk

Day 4 - Thursday 11.08.2016 (Afternoon)

Session 3 Cluster Dissolution
14:25 - 15:00 Walter Dehnen
(University of Leicester, UK)
The development of globular-cluster tidal tails in the Galactic potential
15:00 - 15:20 Andreas Just
(University of Heidelberg, Germany)
The Impact of the Initial Filling Factor on the Mass-age Distribution of Open Clusters
15:20 - 15:40 Hosein Haghi
(Institute for Advanced Studies in Basic Sciences, Iran)
Probing The Birth Conditions Of Star Clusters By The Present-day Stellar Mass Function
15:40 - 16:10 Coffee Break
16:10 - 16:45 Michela Mapelli
(INAF - Osservatorio Astronomico di Padova, Italy)
The dynamics of young star clusters: a happy marriage between simulations and the Gaia-ESO survey
16:45 - 17:05 Bekdaulet Shukirgaliyev
(University of Heidelberg, Germany)
Improving The Survival Likelihood Of Star Clusters After Instantaneous Gas Expulsion
17:05 - 17:25 Raúl Esteban Domínguez
(Universidad de Concepcion, Chile)
Effects of the Initial Mass Function and Mass Segregation in the survival of Embedded Star Cluters
17:25 - 17:45 Massimo Ricotti
(University of Maryland, USA)
Compact Star Clusters in the Early Universe and their Effect on Reionization
End of Day 4

Day 5 - Friday 12.08.2016 (Morning)

Session 3 Cluster Dissolution
09:15 - 09:50 Peter Berczik
(University of Heidelberg, Germany)
Galactic Star Cluster Mass Evolution - High Performance Star-by-Star Simulations - Observations vs. Modeling.
09:50 - 10:10 Martin Netopil
(Masaryk University, Czech Republic)
The Metallicity Of Young And Intermediate Age Open Clusters
10:10 - 10:30 Diederik Kruijssen
(University of Heidelberg, Germany)
The Universal Physics of Cluster Formation and Survival -- from Local Galaxies to High Redshift
10:30 - 11:00 Coffee Break
11:00 - 11:20 Prasanta Kumar Nayak
(Indian Institute of Astrophysics, India)
Star Clusters in the Magellanic Clouds: Parameterisation and Classification of 1072 Clusters in the LMC
11:20 - 11:40 Esteban Silva-Villa
(University of Antioquia, Colombia)
M83 as a Test Case For The Model of Formation and Evolution of Star Clusters
11:40 - 12:10 Discussions - Sessions 2 and 3 - Chair person: Franca D'Antona
12:10 - 12:40 Elena Sabbi
(STScI, Baltimore, USA)
12:45 -            Farewell
End of Day 5 and of Conference

Traveling to and Staying in Heidelberg

By plane

From Frankfurt Airport (FRA) to Heidelberg (ca. 90km), you have the following options: From Stuttgart Airport (STR) to Heidelberg:
  • Take the S-Bahn from the airport to Stuttgart Hauptbahnhof (ca. 25 minutes ride). Continue by train to "Heidelberg Hbf" (see To Heidelberg by train)

By train

See train schedules of the Deutsche Bahn. Your end station is "Heidelberg Hbf" (Hauptbahnhof-Main Train Station)

Public transportation in Heidelberg

Map of the public transport network in Heidelberg

How to reach the Conference Venue: see Conference Information

Finding your way in Heidelberg

This map helps you locate: conference-related sites (red stars), banks ('ATM'), Universitätsplatz and Bismarckplatz (red points), the Main Train Station, arrival/departure point of the Lufthansa Shuttle, taxis, restaurants, supermarkets, ...

Conference Poster and Latest News

Conference Poster

15MB pdf-file:

31MB pdf-file

Latest News

   All dates given on this webpage are in DD.MM.YYYY format.
  • 08.08.2016: conference starts

  • 08.07.2016: list of registered participants released

  • 22.06.2016: conference poster available

  • 27.05.2016: conference program released and
                        poster-information added

  • 09.05.2016: SOC decisions about contributed-talk
                         applications: all emails sent.

  • 10.04.2016: Contributed-talk abstract submission closes

  • 10.02.2016: Conference announcement

  • 05.02.2016: Website goes online, registration and
                        abstract submission open

  • 13.01.2016: Invited speakers selected

  • 27.11.2015: Conference pre-announcement

  • 24.11.2015: SOC assembled

  • 06.11.2015: Funding application submitted by
                        Parmentier and Henning to the
                        Managing Board of SFB 881

Sponsor & Logistics

Star Clusters: from Infancy to Teenagehood is supported by the SFB 881 of Heidelberg University

Logistics support is provided by the Congress and Conference Management of Heidelberg University


Geneviève Parmentier
Universität Heidelberg
Astronomisches Rechen-Institut
Mönchhofstrasse 12-14
69120 Heidelberg
Phone: +49 6221 54 1836
Fax:      +49 6221 54 1888