9–13 Sept 2019
University of Geneva A100 Sciences II
Europe/Zurich timezone

Preliminary scientific program

MONDAY 9 September 2019

 

08:30-09:00am:    Registration

 

SESSION I: OBSERVATIONAL APPROACH: CEMP STARS, FIRST STARS, FIRST GALAXIES

 

Chair: Cristina Chiappini

 

09:00-09:30am      I1 CEMP Stars – Past Perspectives and Future Objectives

                                         Timothy Beers (Notre Dame)

09:30-10:00am      I2 Observations of very Iron-Poor Stars

                                          Piercarlo Bonifacio (Observatoire de Paris)  

10:00-10:30am      I3 3D non-LTE chemical abundance measurements for CEMP stars

                                         Anish Amarsi (MPI)

 

10:30-11:00am Coffee Break

 

Chair: Camilla Hansen

 

11:00-11:20am      C1 CNO abundances in the early Galaxy

                                           Susmitha Rani Antony (Tata Institute of Fundamental Research

                                           Mumbai)

11:20-11:40am      C2 Accurate abundances at the lowest detected iron abundance:

                                           SMSS 1605-1443

                                           Thomas Nordlander (Australian National University)

11:40-12:00am      C3 Detailed abundance analysis of new CEMP stars from HESP-

                                          GOMPA survey

                                     Avrajit Bandyopadhyay (Indian Institute of Astrophysics)

12:00-12:30am      I4  Looking for the most metal-poor stars with large surveys

                                           David Aguado (University of Cambridge, UK)

 

12:30-02:00pm Lunch Break

 

Chair: David Yong

 

02:00-02:30pm      I5   CEMP Stars as Probes of First-Star Nucleosynthesis, the IMF,

                                            and Galactic Assembly

                                            Else Starkenburg (AIP) 

02:30-02:50pm      C4  Tracing the formation of the Milky Way through UMP and 

                                            EMP stars

                                            Federico Sestito (Observatoire Astronomique de Strasbourg)

02:50-03:10pm      C5  The Metallicity Gradient in the Outer Halo of the Milky Way

                                            Sarah Dietz (University of Notre Dame)

03:10-03:30pm      C6   Observations of 200 New CEMP Stars from the South African

                                            Large Telescope

                                            Kaitlin Rasmussen (University of Notre Dame)

 

 

03:30-04:00pm Coffee Break

 

Chair: Thomas Masseron

 

04:00-04:20pm      C7 The Pristine Survey: High-resolution spectroscopy and

                                            kinematics of new extremely metal-poor stars

                                            Kielty Collin (University of Victoria)

04:20-05:10pm       I6 CEMP-no and the early chemical enrichment of the Milky Way

                                           Cristina Chiappini (AIP, Germany)

 

05:10-05:45pm    POSTERS PRESENTATIONS   (5 minutes per poster)

 

                                   1) 3D LTE Carbon and Oxygen abundances in the Metal-Poor

                                        subgiant BD+44493

                                        Arūnas Kučinskas (Vilnius University)

                                   2) Searching the Metal-Poor Star with Deep Learning Method

                                         Zhang Jiannan (NAO, China)

                                   3) Metal-Poor stars in Gaia

                                         Theodora Xylakis-Dornbusch (University of Heidelberg)

                                   4) An extended Empirical Library for Metal-Poor Stars

                                        Recognition and  Parameterization

                                        Du Bing (NAO, China)

                                    5) Current Results of the New Metallicity Calibration

                                         Method for EMP stars

                                        Ozuyar Dogus (Ankara University)

                                    6) A new stellar cluster Gaia 2

                                         Caliskan Seyma  (Ankara University)

                                    7) SALT CEMP Star Survey

                                          Joseph Zepeda (University of Notre Dame)

 

                                  

 

 Wine and Cheese party

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TUESDAY 10 September 2019

 

SESSION I: OBSERVATIONAL APPROACH: CEMP STARS, FIRST STARS, FIRST GALAXIES

(continued)

Chair: Tim Beers

 

09:00-09:30am      I7 Very Iron-poor Stars and an Update of the SkyMapper 

                                          Extremely Metal-Poor Star Program

                                           David Yong (ANU)

09:30-10:00am      I8 CEMP stars in dwarf galaxies

                                          Asa Skuladottir (Heidelberg)

10:00-10:20am      C8 Abundances and kinematics of CEMP stars- A new classification

                                          Camilla Juul Hansen (MPIA)

 

10:20-10:50am Coffee Break

Chair: Stefania Salvadori

 

10:50-11:10am    C9 Binarity among CEMP-no stars: an indication of multiple formation

                                          pathways?

                                         Anke Arentsen (AIP)

11:10-11:30am  C10 Putting CEMP-s stars into context: the swan songs of stars as

                                         recorded by their binary companion

                                         Pierre North (EPFL)

11:30-11:50am  C11  Seeking the origin of CEMP-r/s stars

                                         Birgitta Nordstrom (Niels Bohr Institute, Copenhagen, University)

11:50-12:10am  C12  Multiplicity of the first stars from machine learning-based

                                          classification of stellar fossils

                                          HARTWIG, Tilman (University of Tokyo)

12:10-12:30am  C13  The binarity of dwarf carbon stars and their possible role as main

                                          sequence counterparts to CEMP stars

                                          Lewis Whitehouse (University College London)

 

12:30-02:00pm Lunch Break

Chair: : Arunas Kucinskas

 

02:00-02:20pm  C14  Origin of CEMP-no morphology in the Milky Way halo

                                          Jinmi Yoon (University of Notre Dame)

02:20-02:40pm  C15  Dynamical Relics with Chemically Peculiar Stars from Ancient

                                          Small Dwarf Galaxies

                                          Zhen Yuan (Shanghai Astronomical Observatory, CAS)

02:40-03:00pm  C16  Metal-poor Stars Observed with the Automated Planet Finder

                                          Telescope

                                          Mohammad Mardini (National Astronomical Observatories of

                                          China

03:00-03:20pm  C17  Constraining nucleosynthesis in CEMP-s progenitors using

                                           Fluorine

                                           Aldo Mura Guzman (Australian National University) 

 

03:20-03:50pm  Coffee Break

 

03:50-04:20 pm    I9     Chemical enrichment and ionizing escape fraction from

                                             observations of GRBs

                                             N. R. Tanvir   (Leicester)

 

 

SESSION  II: THEORETICAL APPROACH TO CEMP STARS, FIRST STARS AND FIRST GALAXIES

 

Chair: Sylvia Ekström

 

04:20-04:50pm    I10  The First Stars: Our Emerging Theoretical Framework

                                            Volker Bromm (University of Texas)       

04:50-05:10pm    C18  Fragmentation Condition in a Primordial Accretion Disk

                                            Wei-Ting Liao (University of Illinois at Urbana-Champaign)

05:10-05:30pm    C19  Thermodynamics of H2 in the context of the First Stars

                                            Sharda Piyush (Australian National University)

05:30-05:50pm    C20  Surviving Pristine Stars and the Implications of their Non-

                                            detection Paper

                                            Mattis Magg (Universität Heidelberg)

 

05:50            END OF THE DAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WEDNESDAY 11 September 2019

 

SESSION  II: THEORETICAL APPROACH TO CEMP STARS, FIRST STARS AND FIRST GALAXIES

 

Chair: Else Starkenburg

 

09:00-09:30am     I11  The variety of CEMP-no abundances: back-and-forth mixing

                                             between H- and   He-burning

                                              André Maeder (Unige)

09:30-09:50am     C21  Probing the rotation of early massive stars from the abundances

                                             of metal-poor stars

                                             Arthur Choplin (Konan University)

09:50-10:10am     C22   Mechanical mass loss in very metal-poor massive stars

                                              Sébastien Martinet (Unige)

10:10-10:30am     C23   An Alternative Progenitor Scenario for the Most Iron-poor

                                              CEMP- no Stars.

                                              Ondrea Clarkson (University of Victoria)

 

10:30-11:00am  Coffee Break

Chair: Raphael Hirschi

 

10:30-10:50am     C24 The origin of CEMP-i stars - Results from a comprehensive multi-

                                            method simulations approach

                                            Falk Herwig (University of Victoria)

10:50-11:10am     C25 A new grid of Geneva stellar evolution models for Population-III

                                            stars

                                            Laura Murphy (Trinity College Dublin)

11:10-11:40am      I12   r-Process Sites, their Ejecta Composition, and their

                                             Imprint  in Galactic Chemical Evolution

                                              Friedrich Thielemann  (University of Basel and GSI Darmstadt)

11:40-12:00am      C26  Observational Evidence for Aspherical Jet-Like Population III

                                              Supernova Explosion

                                               Rana Ezzeddine (Massachusetts Institute of Technology)

12:00-12:20am      C27  CEMP star formation from faint supernova explosions

                                              Chiaki Gen

                                           

12:20am END OF THE SESSION

 

             Free afternoon/excursion

 

 

 

 

 

 

 

THURSDAY 12 September 2019

 

SESSION  II: THEORETICAL APPROACH TO CEMP STARS, FIRST STARS AND FIRST GALAXIES

 

Chair: André Maeder

 

09:00-09:30am  I13   Simulating and Observing the First Galaxies

                                           John Wise (Georgia Tech) 

09:30-10:00am  I14   Building-up Pop III IMF in the Milky Way-like galaxies

                                           Shingo Hirano (Kyushu University)

10:00-10:30am  I15   First Star Mass Distribution: Empirical Constraints

                                           Stefania Salvadori (INAF/Florence)

 

10:30-11:00am  Coffee Break

Chair: Volker Bromm

 

11:00-11:30am  I16  Connecting the first galaxies with ultra faint dwarfs in the

                                         Local Group

                                          Myoungwon Jeon (Kyung Hee University)

11:30-12:00am  I17  Exploring the stellar ionising continuum of galaxies in the

                                         context of cosmic reionisation

                                         Anne Verhamme (Unige)

12:00-12:20am  C28  CEMP stars: their origin and connection with stars that

                                          reionized  the Universe

                                          Mahavir Sharma (ICRAR, Curtin University)

 

12:20-02:00pm Lunch break

 

SESSION  III: FUTURE PERSPECTIVES, CHEMICAL EVOLUTION, LARGE SURVEYS

 

Chair: Shingo Hirano 

 

02:00-02:30pm  I18   Multi-dimensional modelling of stellar interiors

                                           Raphael Hirschi (Keele)

02:30-03:00pm  I19   Transport processes in stellar interiors constrained by

                                           Asteroseismology

                                           Patrick Eggenberger (UNIGE)

03:00-03:20pm  C29  Asteroseismology and high-resolution spectroscopy of halo stars

                                           Tadafumi Matsuno (NAOJ/SOKENDAI)

03:20-03:40pm  C30  What is the metallicity of our reference star, the Sun

                                           Gaël Buldgen (UNIGE)

 

03:40-04:10pm Coffee break

 

 

 

 

 

 

Chair: John Wise

 

04:10-04:40am  I20  TBD (Compact star merging events in early Universe?)

                                         Tassos Fragos (UNIGE)

04:40-05:00pm C31 Life and death of supermassive stars

                                        Lionel Haemmerlé (UNIGE)

 

Chairs TBD according to the topic chosen

 

05:00-05:40pm: GENERAL DISCUSSION

Possible themes

 

The hunt of EMP stars: new strategies, new methods of analysis

What is the helium content of EMP? How to know? What to expect?

Multi-messenger astrophysics for the study of the first stars

Possible links and differences between EMP and stars in Globular Clusters?

 

 

05:40      END OF THE DAY

 

 

Conference dinner

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SESSION  III: FUTURE PERSPECTIVES, CHEMICAL EVOLUTION, LARGE SURVEYS

 (continued)

 

FRIDAY 13 September 2019

 

Chair: Beatriz Barbuy

 

09:00-09:30am   I22  TBD (New approaches for the dynamical and chemical

                                           evolution modeling of dwarf galaxies?)

                                           Pascale Jablonka (EPFL, Switzerland)

09:30-09:50am   C32 Chemical signatures of rotating massive stars dying in faint

                                          explosions

                                          Gabriele Cescutti (National Institute for Astrophysics - INAF)

09:50-10:10am   C33 Formation and Evolution of Milky Way Galaxy: Abundance trends

                                          of stable and short-lived nuclides

                                          Kaur Tejpreet (Panjab University)

 

10:10-10:40am  Coffee Break

 

Chair: Nial Tanvir

 

10:40-11:10am   I23  The Galactic bulge and old stellar populations

                                          Beatriz Barbuy (Sao Paolo)

11:10-11:40pm  I21  Extremely metal-poor stars in the next generation large

                                          surveys

                                          Vanessa Hill (OCA)

11:40-12:10am             Concluding discussion

 

Each participants will be asked to answer in a few written lines two questions :

 

1) What is the most interesting thing she, he has learned during the conference?

 

2) What non-answered question she/he would like to study in the coming year about CEMP stars?

 

The answers will be collected and a SOC member will prepare a small presentation to share the results with the audience

 

12:10  END OF THE CONFERENCE