Massive Stars: From α to Ω

Fecha del evento: 
Lun, 10/06/2013
Rhodes, GREECE

This is the third announcement for the upcoming conference:

Massive Stars: From α to Ω
June 10-14, 2013
Rhodes, Greece


To register for the meeting and submit your abstract, please follow the "New User" button on the conference website

Background and Scientific Rationale

The 'Massive Stars' meetings have enjoyed more than 40 years of startling success since the first meeting in Argentina in 1971. Held every 4 to 5 years, these meetings aim to encapsulate the current
state-of-the-art of our understanding of the physics of Massive Stars and their role in the Universe. For this 10th meeting in the Massive Stars series the Institute of Astronomy, Astrophysics, Space Applications and Remote Sensing of the National Observatory of Athens, invites you to the island of Rhodes, once home to one of the greatest astronomers of antiquity, Hipparchos, who is generally acknowledged as the founder of trigonometry, discoverer of precession and publisher of the first modern star catalog around 135 BC.

The conference will build on results from ongoing large-scale multi-wavelength surveys of massive stars which are being coupled with new theoretical advances dealing with stellar evolution and the
processes which effect that evolution: mass-loss, rotation, convection, magnetic fields, multiplicity and environment. It will tackle important problems from birth, through main sequence evolution and until core collapse.

There will be a strong focus on relating the major theoretical uncertainties afflicting stellar evolution through these phases to the current observational picture. The impetus for this focus is derived
from the realization that our understanding of massive star evolution is severely challenged by new observations powered largely by technological advances in telescopes and instrumentation. This has enabled new ways of looking at old long-standing problems enabling large-scale high-quality surveys of resolved stellar populations. As theoretical approaches try to keep pace with this increase in information the cracks in our assumptions concerning stellar evolution have become more apparent,
even glaring. Whereas before it might have been possible to understand some of the stars some of the time it is now clear that understanding  stellar populations is a considerable challenge and will require substantial efforts to resolve.

This is an exciting time as observations have revealed large gaps in understanding of the formation and evolution of massive stars. The huge impact that massive stars have on their immediate environment, parent galaxies, and through the Universe, demands better understanding of massive star evolution from alpha to Omega.

Looking forward to seeing you in Rhodes!

Scientific Topics

  • New observational & theoretical results from large-scale surveys (FLAMES, MiMeS, PanSTARRS, PTF), techniques (astrometry) and computation.
  • Consequences of zero-age conditions on stellar evolution
  • Massive star environments, massive clusters, dynamical evolution, runaway stars and mergers
  • The importance of binaries for populations of massive stars
  • The upper end of the IMF and the role of mergers
  • Massive-star magnetism and pulsation, evolutionary consequences
  • The role and evolution of stellar rotation across the H-R diagram
  • Mass-loss across the H-R diagram and episodic mass-loss from LBVs and other transients
  • Constraints from endpoints
  • Massive stars at very low metallicity


Oral contributions will be divided between ~25 invited review talks and ~25 contributed talks. If you would like to propose a contributed talk, you must submit an abstract via the registration page on the conference website by March 13, 2013. The proposed contributed talks will be reviewed by the SOC and the speakers will be notified on April 15, 2013.
The conference venue offers ample space for poster presentations, which also need to be submitted via the website, and will also be reviewed by the SOC. The complete oral and poster program will be distributed in the Final Announcement. Ample time will be available for general discussion, both formally at the end of each scientific session, and informally over the lunch break or in the evening.


J. C. Bouret, P. Crowther, B. Davies, L. Decin, S. Ekstrom, J. Eldridge, A. Fullerton, M. Gieles, K. Kratter, R. Kuiper, N. Langer, F. Millour, S. de Mink, M. Modjaz, F. Najarro, L. Penny, V. Petit, P.
Podsiadlowski, J. Prieto, H. Sana, A. Stolte, J. Sundqvist, J. Vink


We are honored to have ESA ASTRONAUT CLAUDE NICOLLIER inspire us with his experiences in Space and Astronomy with a public talk in Rhodes, on Friday, June 7th.



  Invited speaker:
  Norbert Langer - Opening Remarks


This session will focus on the questions: how do massive stars form and what is the role of formation in setting the initial conditions for their subsequent evolution?_ It will examine the main theoretical
questions and uncertainties and also review what we have learned from recent large surveys of massive star-forming regions. Typical questions to be reviewed are: What is the distribution of the initial rotational velocities and multiplicity properties of young massive star populations? Are there two modes of star formation - in clusters and isolation? Does stellar dynamics in dense massive clusters have an important role to play? Are there implications for the IMF?_
  Invited speakers:
  Rolf Kuiper - Formation of massive stars
  Kaitlin Kratter - Formation of massive stars and binaries
  Mark Gieles - Interacting Massive Star Clusters
  Paul Crowther - Very Massive Stars and the upper end of the IMF
  Huges Sana - VLT-Flames Tarantula Survey and Multiplicity of Massive Stars
  Laura Penny - Rotational Properties of Massive Stars
  Andrea Stolte - Massive Star Clusters in the Milky Way


The second session will review our knowledge of main sequence stars, again from both theoretical and observational perspectives. The major potential influences on stellar evolution will be discussed, ranging over major topics such as magnetic fields, mass-loss, angular momentum loss, and their dependence on metallicity. The impact of binaries and rotational mixing will also be a focus, looking at mass transfer and spin-up, abundances, mergers, tides and spin-up/spin-down. To what extent are the surface abundances of OB-stars consistent with theory?
An important question to be answered is – how well can we simulate a massive star population with current models? Recent results from surveys and new techniques are encouraged.

  Invited speakers: Sylvia Ekstrom - Evolutionary Models for Single Massive Stars
  Selma de Mink - Evolution of Massive Binaries
  Florentin Millour - Insights on Massive Stars from Interferometry
  Veronique Petit - MiMes and magnetic fields in Massive Stars
  Jean Claude Bouret - Abundances in O-type stars
  Jon Sundqvist - Mass loss

Session III (Late stages/endpoints)

This session will focus on what happens after the end of the main sequence. An important question to be considered is – where does the main sequence end? A related question to be examined is: can we explain the observed distribution of main sequence stars in the HR diagram? The evolutionary significance of LBVs will be examined and their link to the most luminous cosmic explosions. Can WR progenitor stars undergo LBV-like outbursts, and what is the SNe connection? We will review what
we know concerning Blue and Red supergiant mass-loss, and discuss why there are yellow supergiants. Which stars explode and why? As in Session II we expect representation from those involved in the application of new techniques and/or recent surveys.

  Invited speakers:
  Francisco Najarro - The most massive evolved stars: WR stars/LBVs
  Ben Davies - Red Supergiants
  Jorick Vink - Mass-loss across the HR Diagram
  Philip Podsiadlowski - Evolved Binaries, Mergers, B[e] stars
  Jose Prieto - Intermediate-luminosity transients
  Maryam Modjaz - Core-collapse SN environments
  Leen Decin - Molecular and dust shells around cool supergiants
  John Eldridge - Massive Stars and SNe progenitor theory


The final session will host a special panel discussion of encouraging exchanges between expert and early-stage researchers, with panelists recruited from the former group and given the brief of leading a
discussion that reviews progress in recent years and prospects for the future. In keeping with this theme this session will focus on theoretical and observational challenges that lie ahead. There are many missions planned, on the ground and in space: PanSTARRS, LSST, JWST, ALMA, GAIA, ELTs. How will we use them and with which kinds of questions? How is the synergy between theory and observation evolving in this context?


Perspectives: How has the focus on Massive Stars changed? What new questions are keeping us busy today? What old questions are still around? How important is our subject in the big picture?


  Invited speaker:
  Alex Fullerton - Conference Summary


2013 March 13

Deadline for abstract submission for contributed talks

        2013 April 15

        Notification on selected abstracts for oral presentations

        2013 April 20

        Deadline for early registration and payment (€ 350)

        2013 April 20

        Deadline for abstract submission for posters

        2013 May 10

        Deadline for hotel reservation with guaranteed special meeting prices

        2013 May 20

        Deadline for late registration and payment (€ 400)

        2013 June 09

        On-site registration opens (payment in cash only – € 450)

        2013 June 10

        The conference starts


The venue for the conference is the five-star Rodos Palace Luxury Convention Resort in the seaside town of Ixia, Rhodes:
Ixia is located about 4 km off downtown Rhodes and about 10 km from the Rhodes International Airport.

The Local Organizing Committee has negotiated special room rates with the conference venue and encourages all participants to make reservations at this hotel. The room rates and reservation instructions can be found on the conference website:

Childcare and babysitting are also available through the hotel.


Online registration by all participants, including invited speakers, SOC and LOC members is mandatory. Participants need to complete (or update if already registered) the registration form to submit poster or contributed talk abstracts.

The meeting registration fee is € 350 and includes conference attendance, the welcome reception, 4 lunches and coffee breaks. After April 20th, 2013, a late registration fee of € 400 will be charged.

Participants are expected to arrive in Rhodes by Sunday, June 9th and to depart from Rhodes not earlier than Saturday, June 15th.


We are planning the following social events and excursions:

1) a public talk by ESA ASTRONAUT CLAUDE NICOLLIER in the city of Rhodes, sponsored by the John S. Latsis Public Benefit Foundation (Friday, June 7th, ~8:30pm)

2) a welcome reception at the PALACE OF THE GRAND MASTER OF THE KNIGHTS OF RHODES (Sunday, June 9th)

3) an afternoon excursion to the HILL OF FILERIMOS AND SPRINGS OF KALLITHEA (Wednesday, June 12th)

4) a conference banquet at the Rodos Palace hotel (Thursday, June 13th)

5) a full day BOAT EXCURSION TO LINDOS (Saturday, June 15th).

More information on these events can be found on the conference website.
Please note that the cost of the conference banquet and excursions is not covered by the registration fee.


The hotel is served by the Rhodes International airport "Diagoras" (code RHO), which is located about 10 km west of the hotel.

The Star Alliance member airlines are pleased to be appointed as the Official Airline Network for The Astrophysical Conference "Massive Stars: From α to Ω"

To obtain the STAR ALLIANCE CONVENTIONS PLUS DISCOUNTS please follow the steps below to access the Conventions Plus online booking tool:

    * Visit:
    * Under "Delegates login" enter conventions code "A301S13".
    * The online booking tool opens in a separate window

Registered participants plus one accompanying person travelling to the event can qualify for a discount of up to 20%, depending on fare and class of travel booked.

The participating airlines for this event are: Adria, Aegean Airlines, Air Canada, Air China, Air New Zealand, ANA, Asiana Airlines, Austrian, Blue1, bmi, Brussels Airlines, Croatia Airlines, EgyptAir, Ethiopian Airlines, LOT Polish Airlines, Lufthansa, Scandinavian Airlines, Singapore Airlines, South African Airways, Spanair, SWISS, TAM Airlines, TAP Portugal, THAI, Turkish Airlines, United, US Airways

Discounts are offered on most published business and economy class fares, excluding website/internet fares, senior and youth fares, group fares and Round the World fares.

Please note: For travel to/from Japan and New Zealand special fares or discounts may be offered by the participating airlines on their own network. To obtain these special fares or discounts and for booking office information please visit and:

    * Click on "Conventions Plus Booking Contacts" and enter the conventions code "A301S13".
    * Choose one of the participating airlines listed
    * Call the respective reservation contact listed and quote the conventions code "A301S13" when requesting the special ticket

When making your travel plans please present confirmation of your registration or proof of attendance for the Event/Convention.

make a reservation:


Participants from Schengen Countries, USA and Japan do not need a visa to travel to Greece. For US and Japanese citizens this is valid for up to a 90-day visit. Participants from other countries should consult the Greek Embassy of their country on whether they need a visa or a letter of invitation to apply for a visa. Please also check:
in order to find information for VISAS for foreigners travelling to Greece.

If an invitation letter is required, participants should contact the Local Organizing Committee. Please allow sufficient time ahead of the meeting as the letter of invitation and the overall application
process can take time.

Scientific Organizing Committee

D. Lennon (co-chair), A. Bonanos (co-chair), C. Evans, M. Hanson, R. Hirschi, E. Levesque, S. de Mink, N. Morrell, J. Puls, S. Smartt, N. Smith, G. Wade

Local Organizing Committee

A. Bonanos (co-chair), P. Boumis (co-chair), S. Akras, V. Antoniou, N. Britavskiy, N. Castro, M. Kourniotis, I. Leonidaki, L. Uscanga, Ch. Vamvatira-Nakou, S. Williams



IAASARS, National Observatory of Athens
Metaxa & Pavlou St, P. Penteli 15236
Phone: +30 2108109177, 2108109162
Fax: +30 2108040453
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