Cold Cores - Helsinki 9.-11.6.2025

The 15th annual meeting of the Cold Cores project will be held in Helsinki from Monday the 9th till Wednesday the 11th of June 2025. The days will consist of scientific talks, discussion sessions, and possible mini workshops.
SOC: Isabelle Ristorcelli, Mika Juvela
Practical information
The Cold Cores 2025 meeting takes place at the Helsinki university Kumpula campus,
at the physics department, in the Physicum building. The address is Gustaf Hallstromin katu 2, and here is a link to the
Google maps.
Information on accommodation options and public transportation can be found at the end of this page.
Some information on the options for social programme can be found through
this link.

Programme
The meeting begins at 9:00 on Monday the 9th of June and ends at lunch time (around 13:00) on Wednesday the 11th of June. The conference dinner will be organised in the evening of Tuesday the 10th of June, in downtown Helsinki. The name of the restaurant is Konstan Möljä. The booking is 19:45 under the name Devika Tharakkal (see also Google map and the restaurant web page).
In the list below, names and titles in italic refer to remote presentations. All times are for the EEST time zone, the local time in Helsinki.
Monday the 9th of June
09:00-09:30 | Welcome | |
09:30-10:00 | Ysard | THEMIS 2 dust models |
10:00-10:30 | Zhu | NIKA2 observation and 3D modelling of L1506C, a prestellar core in the making |
10:30-11:00 | Coffee Break | |
11:00-11:30 | Pelkonen | Synthetic galaxy observations: first comparison with Planck and Herschel |
11:30-12:00 | Joó | Earliest Stages of Star Formation in Planck Compact Sources within OMC |
12:00-12:30 | Juvela | Modelling dust emission of Orion Molecular Cloud 3 |
12:30-14:00 | Lunch break | |
14:00-14:30 | Montillaud | B-FROST |
14:30-15:00 | Mannfors | Lambda Orionis: feedback and dust evolution in irradiated molecular ring |
15:00-15:30 | Vorster | JOYS+: JWST IFU Observations of Dusty Disk Winds |
15:30-16:00 | Coffee Break | |
16:00-17:00 | Discussion: Dust |
Tuesday the 10th of June
09:00-09:30 | Oers | Statistical analysis of the relative orientation between filaments and magnetic fields |
09:30-10:00 | Alina | Magnetic field of the ring-like molecular cloud G111 |
10:00-10:30 | Varga | Comparative Study of the Structure and Polarization Patterns in Heiles Clouds 1 and 2 |
10:30-11:00 | Coffee Break | |
11:00-11:30 | Ward-Thompson | Latest results from the JCMT BISTRO Large Program: How magnetic fields influence star formation |
11:30-12:00 | Doi | Magnetic Field Structure in the High-Mass Star-Forming Complex W33 |
12:00-13:30 | Lunch break | |
13:30-14:00 | Pattle | The interaction between magnetic fields and feedback: from stars to galaxies |
14:00-14:30 | Falgarone | CN Zeeman mapping of the W3OH molecular cloud |
14:30-15:00 | Tram | Grain Alignment and Dust Polarization: What do we know? |
15:00-15:30 | Tharakkal | Simulations of dust polarisation |
15:30-16:00 | Coffee Break | |
16:00-17:00 | Discussion: Polarisation | |
18:00-21:00 | Observatory visit and workhop dinner |
Wednesday the 11th of June
09:00-09:30 | Pichler, Juhász | HI kinematics and star formation in the nearby dwarf galaxy DDO 43 |
09:30-10:00 | Koncz | The history of galaxy mergers and star formation in IlustrisTNG |
10:00-10:30 | Marshall | Gaia distance tool update |
10:30-11:00 | Coffee Break | |
11:00-11:30 | Umetaliev | Deep learning approach for filaments’ position angle determination |
11:30-12:00 | Toth | Detecting gas infall to molecular clouds and cloud cores |
12:00-12:10 | Juhász | THESEUS and the Multiwavelength Study of YSOs |
12:10-13:00 | Discussion: Observations and simulations |
List of participants
- Alina, Dana (Nazarbayev University): Magnetic field of the ring-like molecular cloud G111
- Demyk, Karine (IRAP, Toulouse)
- Doi, Yasuo (University of Tokyo): Magnetic Field Structure in the High-Mass Star-Forming Complex W33
- Falgarone, Edith (ENS, Paris): CN Zeeman mapping of the W3OH molecular cloud
- Harju, Jorma (University of Helsinki)
- Joó, András Péter (ELTE, Budapest): Earliest Stages of Star Formation in Planck Compact Sources within OMC
- Juhász, Áron (ELTE, Budapest): THESEUS and the Multiwavelength Study of YSOs
- Juvela, Mika (University of Helsinki): Modelling dust emission of Orion Molecular Cloud 3
- Kiviaho, Wilma (Paris Observatory)
- Koncz, Bendegúz (ELTE, Budapest): The history of galaxy mergers and star formation in IlustrisTNG
- Mai, Xiaofeng (Shanghai Observatory, University of Helsinki)
- Mannfors, Emma (University of Helsinki): Lambda Orionis: feedback and dust evolution in irradiated molecular ring
- Marshall, Douglas (IRAP, Toulouse): Gaia distance tool update
- Mattila, Kalevi (University of Helsinki)
- Montillaud, Julien (Besancon observatory): B-FROST
- Oers, Jonathan (IRAP, Toulouse): Statistical analysis of the relative orientation between filaments and magnetic fields using Herschel and Planck data in star-forming regions
- Pattle, Kate (UCLAN): The interaction between magnetic fields and feedback: from stars to galaxies
- Pelkonen, Veli-Matti (IAPS-INAF): Synthetic galaxy observations: first comparison with Planck and Herschel
- Pichler, Enikő and Juhász, Áron (ELTE, Budapest): HI kinematics and star formation in the nearby dwarf galaxy DDO 43
- Ristorcelli, Isabelle (IRAP, Toulouse)
- Tharakkal, Devika (University of Helsinki): Simulations of dust polarisation
- Toth, Viktor (University of Debrecen; ELTE, Budapest): Detecting gas infall to molecular clouds and cloud cores
- Tram, Le Ngoc (MPIfR, Bonn): Grain Alignment and Dust Polarization: What do we know?
- Umetaliev, Temirkul (Nazarbayev University): Deep learning approach for filaments’ position angle determination
- Varga, Nóra (ELTE, Budapest): Comparative Study of the Structure and Polarization Patterns in Heiles Clouds 1 and 2
- Vorster, Job (University of Helsinki): JOYSy+: JWST IFU Observations of Dusty Disk Winds
- Ward-Thompson, Derek (UCLAN): Latest results from the JCMT BISTRO Large Program: How magnetic fields influence star formation
- Ysard, Nathalie (IRAP, Toulouse): THEMIS 2 dust models
- Zhu, Enyi (IRAP, Toulouse): NIKA2 observation and 3D modelling of L1506C, a prestellar core in the making
Accommodation options
You can look for hotels on services like booking.com or hotels.com, and most locations in downtown Helsinki have good public transportation connections to the Kumpulas campus. However, below is a list of some recommendations, where you can also check the route maps from the hotels to the meeting locations.Well-known hotel chains in Finland:
- Sokos hotels (7 in Helsinki)
- Scandic hotels (12 in Helsinki, 3 near the airport)
- Omena hotels (cheaper option, 2 in Helsinki)
Downtown:
- Omena Hotel Helsinki Lönnrotinkatu (Short walk to central railway station, or 1-2 tram stops), and the route from hotel to Kumpula Omena Hotel Helsinki City Center (Yrjönkatu) (Short walk to central railway station, or 1-2 tram stops), and the route from hotel to Kumpula
- Senate Hotel, (Short walk to central railway station), and the route from hotel to Kumpula
Next to the railway station (direct bus connection to Kumpula campus & airport trains):
- Hotel Scandic (Grand Central), and the route from hotel to Kumpula
- Sokos Hotel Vaakuna Helsinki, and the route from hotel to Kumpula
- Hotel Arthur Kluuvi (~1 minute walk across a park to the central railway station; direct bus connection to Kumpula campus & airport trains), and the route from hotel to Kumpula
Hakaniemi (Short metro/bus/tram ride/~10 minute walk from central railway station. Direct bus connection to Kumpula campus.)
Pasila (1 train stop to central railway station, direct train to airport. Direct bus to Kumpula Campus, or train+bus via downtown.)
- Original Sokos Hotel Tripla Helsinki (located next to Tripla mall, with 24 hour grocery stores), and the route from hotel to Kumpula
University housing, discounts offered for people attending university events (give us as university contact when making the reservation).
- Unihomes (Töölö Towers) (Direct bus & tram connection to Kumpula campus, direct bus & tram connection to central railway station or ~20 minute walk), with the route from hotel to Kumpula