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Dust Workshop 2025

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…and speaking of pieces. The 11th Dust Workshop is going on now (18-20 Mar 2025, Venice, IT). The “11th” refers to 2015, due to the Rosetta mission to Comet 67P/Churyumov-Gerasimenko. While it’s true that Rosetta advanced comet studies far beyond the status quo, there’s still much to find, let alone discuss. The meeting program:

https://indico.ict.inaf.it/event/3126/program

Rosetta Dust Workshop18-20 March 2025, Venice
Tuesday 18/03

Session 1 Observations
10:10 O. Shubina Dust environment of comet 67P/Churyumov–Gerasimenko in 2021-2022 apparition
10:35 L. Kolokolova and J. Markkanen Agglomerate Zoo: Exploring the diversity of dust particles in the solar system.

Session 2 Models
11:35 N. Attree Towards a self-consistent model of gas and dust emission on comet 67P/Churyumov-Gerasimenko
12:00 M. Fulle Sodium depletes carbon dioxide in cometary comae
12:25 Y. Skorov Structural characteristics of porous media and their application in thermophysical models.

Session 3 Laboratory
14:30 C. Kreuzig, Introduction to CoPhyLab experiments
14:55 G. Meier, Determination of dust-to-gas ratio
15:15 J. Pfeifer, Properties of ejected particles
15:35 C. Knoop, Analysis of visible sample-material loss
15:55 M. Timpe, Mechanical evolution of the sample
16:15 J. Blum, Interpretation of the CoPhyLab findings

16:40 Discussion of the Lab session

Wednesday 19/03

Session 4 Observations
09:30 O. Ivanova Dust properties of distant comet C/2014 N3 (NEOWISE) beyond the snow line
09:55 B. Murphy Deconstructed Coma Evolution of Comet 67P/Churyumov
10:20 M. Mastropietro Investigating the activity of the disrupted asteroid 62412 (2000 SY178)

10:45 Discussion

Session 5 Laboratory
11:30 J. Blum & C. Schuckart The release of μm-sized dust grains from evaporating micro-granular dust-ice mixtures – application to cometary activity
11:55 G. Carsten Diffusive gas transport and sintering
12:20 P. Maria Heitmann Lab thesis topic Surface energy of micrometer sized water ice particles at low-temperatures
12:35 J. Niklas Cybulski Lab thesis topic Compression of granula packages

12:50 Discussion

Session 6 Models
14:30 V. Zakharov et al. Variation of dust column density as a function of phase angle as it follows from the dust coma model
14:55 Bykov N.Y. et al. Ejection velocities of dust particles from the near-surface layer of a cometary nucleus” supported by RSF (grant No. 24-12-00299)
15:20 S. Ivanovski Dust dynamical simulations and dust size constraints of asteroid ejecta

15:45 – 16.00 Discussion

16:30 – 18.00 Space Science at INAF (A. Argan) and round table The nowadays challenges for the dust cometary science (All, panelists: Carsten, Oleksandra and Vladimir) – moderators G. Rinaldi and S.Ivanovski

Thursday 20/03

Session 7 Observations and Models
10:10 H. Kawakita 20 years of cometary polarimetric imaging in optical wavelength region by PICO.
10:35 K. Hornung Structure and strength information of 67/P dust from COSIMA

11:35 J. Markkanen Preliminary analysis of dust in the coma of Comet C/2017 K2 observed by JWST/MIRI.
12:00 G. Rinaldi on behalf of Matteo Teodori and Luca Maggioni SPH model: application to plumes and jet emission

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