To download the Workshop Comets 2017 programme, click here. Copy of the actual powerpoints were made accessible to the participants of the workshop and a copy of the keynotes can be requested from the relevent speakers.

Comet Workshop 2017: Comet formation paradigm after Rosetta. What is the hallmark of cometary nuclei formation in protoplanetary discs inherited from Rosetta?

Monday Afternoon June 19th

14.00 Capria, Bonev, Ivanovski -  Welcome and logistics

14.20 Welcome address from Bulgarian Academy of Sciences  

14.30 In memoriam: Akiva Bar-Nun

14.35 In memoriam: M. A’Hearn

14.40 Tanyu Bonev - Cometary Science in Bulgaria. Link to abstract.

15.10 Matt Taylor - A brief overview of the ESA Rosetta mission.

Session title: Introduction. Early evolution of the solar system. Planet migration.

15.40 Klaus Jockers The early evolution of our solar system and of nascent planetary systems: hints for  the origin of comets? Link to abstract.

16.10 Coffee break

16.40 Maria Drozdovskaya Prestellar chemical fingerprint in protoplanetary disks and comets. Link to abstract.

17.10 Bertram Bitsch Planet migration during the formation of the Solar System. Link to abstract.

17.40 Discussion and Poster Session (5 minutes for everyone who would like to present poster highlights. All posters will be exposed during the whole workshop week)

19.00 Welcome Reception

Tuesday Morning June 20th

Session title: Chemical composition around protostars. What is retained in a comet? From molecular clouds to icy grains. Composition of comets. Collisional comet formation and implications of the stratified inner structure.

09.00 Ana Lopez The path towards understanding the molecular zoo around protostars. Link to abstract.

09.30 Murthy Gudipati Interstellar Ice Grain Chemical Composition retained in a Comet? Link to abstract.

10.00 Cessateur Gael Non-planarity of icy grains surface in molecular clouds: impact on O2 formation. Link to abstract.

10.20 Coffee break

10.50 Olivier Mousis Origin of molecular oxygen in comets. Link to abstract.

11.20 Martin Jutzi Collisional formation of two-component cometary nuclei: low-velocity mergers vs. high-velocity disruptions. Link to abstract.

11.50 Matteo Massironi Implications of the stratified inner structure of comet 67P on cometesimal formation. Link to abstract.

12.20 Discussion

12.30 Lunch

Tuesday Afternoon June 20th

Session title: Planetesimal formation / from planetesimals to comet evolution. Rosetta instrumental-data view on 67P formation /Part 1/.

14.00 Sean Raymond Radial mixing of planetesimals during different phases of Solar System formation.. Link to abstract.

14.30 Michiel Lambrechts From planetesimals to planets by pebble accretion. Link to abstract.

15.00 Juergen Blum Comet 67P - the first close-up view of a planetesimal. What have we learned about its formation? Link to abstract.

15.30 Martin Hilchenbach Some in-situ experiments with cometary dust particles next to comet 67P/Churyumov-Gerasimenko. Link to abstract.

16.00 Coffee break

16.30 Carsten Guettler An inter-instrumental view on Rosetta dust results. Link to abstract.

16.50 Philip Heinisch Surface mechanical properties based on Philae’s touchdowns. Link to abstract.

17.10 Discussion

18.00 -18.30 Public Outreach Talk/Event (TBC)

Wednesday Morning June 21st

Session title: Properties of JFC

8.50 Rossita Kokotanekova Ensemble properties of Jupiter family comets from ground photometric observations Link to abstract.

9.10 Fabrizio Capaccioni   VIRTIS/Rosetta observes Comet 67P/CG: nucleus derived composition and physical properties. Link to abstract.

Session title: Planetesimal formation / from planetesimals to comet evolution. Rosetta instrumental-data view on 67P formation /Part 2/

09.40 Wladimir Lyra Connecting the solar nebula to extrasolar nebulae. Observing, modeling and interpreting comet formation sites in circumstellar disks. Link to abstract.

10.00 Coffee break

10.30 Marco Fulle No catastrophic collisions in the outer Solar System. Link to abstract.

11.00 Tom Andert The gravity field of Comet 67 P/Churyumov-Gerasimenko before and after perihelion. Link to abstract.

11.30 Valerie Ciarletti Constrains on the interior of 67P/C-G's nucleus from CONSERT measurements. Link to abstract.

12.00 Thurid Mannel Microstructure of 67P dust: Insight into dust agglomeration and comet formation. Link to abstract.

12.20 Discussion

12.30 Lunch

14.00 Workshop trip to Plovdiv city.

Thursday Morning June 22nd

Session title: Volatiles in cometary coma. Distributed sources of semi-volatile material, volatile grain morphology. Cometary dust properties.

09.00 Charlotte Vastel Molecular complexity in prestellar cores. Link to abstract.

09.30 Diana Laufer Formation conditions and evolution of comets as derived from experimental results compared to Rosetta's measurements. Link to abstract.

10.00 Dominique Bockelée-Morvan The composition of comets: clues to solar system formation Link to abstract.

10.30 Coffee break

11.00 Martin Rubin Evidence for depletions in the heavy silicon isotopes measured at comet 67P/Churyumov- Gerasimenko. Link to abstract.

11.30 Johan De Keyser Distributed sources of semi-volatile material in the coma of comet 67P/Churyumov-Gerasimenko Link to abstract.

11.50 Chia-Yu-Tzou Volatile grain morphology and statistics in the coma of comet 67P/Churyumov-Gerasimenko as seen by Rosetta ROSINA/COPS. Link to abstract.

12.10 Discussion

12.30 Lunch

Session title: Dust particles as the best preserved representatives of the icy planetesimals that dominated the bulk and solid mass in the early Solar system

14.00 Flavia Dell’Agli AGB stars: dust factory of their host environment. Link to abstract.

14.30 Andrew Westphal The Future of Stardust Science. Link to abstract.

15.00 Jeremie Lasue Texture analysis of IDPs and comparison to 67P dust particles. Link to abstract.

15.20 Sihane Merouane Properties of the cometary dust particles from 67P/Churyumov-Gerasimenko measured in-situ by Rosetta/COSIMA. Link to abstract.

15.50 Coffee break

16.20 Cecilia Tubiana 67P/Churyumov-Gerasimenko: the dust environment as seen through OSIRIS onboard Rosetta. Link to abstract.

16.40 Giovanna Rinaldi Cometary coma dust size distribution from in-situ IR spectra. Link to abstract.

17.00 Stavro Ivanovski Dynamical properties of the cometary dust grains in the 67P/Churyumov-Gerasimenko coma constrained by the GIADA data. Link to abstract.

17.20 Discussion  

17.30 Rosetta Dust Group - Splinter meeting

20.00 Workshop dinner

Friday Morning June 23rd

Session title: Comet formation paradigm after Rosetta. What is the hallmark of cometary nuclei formation in protoplanetary discs inherited from Rosetta?

09.00 Susanne Pfalzner The Formation of the Solar System – New Challenges. Link to abstract.

09.30 Dina Prialnik The effect of amorphous ice on the structure and activity of comet nuclei. Link to abstract.

10.00 Summary of Rosetta Dust Splinter meeting (TBC)

10.30 Coffee break

11.00 Maria Teresa Capria Scientific highlights and summary of the workshop + General discussion.

12.15 Concluding remarks

12.30 Lunch


Vincenzo Della Corte 67P/Churyumov-Gerasimenko on 5th September 2016 exhibited an outburst that GIADA characterized as a dust-rich event. Link to abstract.

V.A. Ponomarenko Spectrophotometric researches of the cometary comae C/2014 Q2 (Lovejoy) and C/2013 US10 (Catalina). Link to abstract.

Olena Shubina Application of the database of comet polarimetry (DBCP) for study the connection between physical and dynamic characteristics of selected comets. Link to abstract.

Colin Snodgrass The Castalia mission to a main belt comet. Link to abstract.