IAUS412: Hub-Filament Structures in Star Formation

Invited talks: 25 min, Contributed talks: 15 min, Poster blocks: 20 min

Time

Duration (min)

Type

Speaker/item

Talk title/programme item

Day 1: 30 November, 2026

08:30 - 09:15

45

Registration

Registration

Registration

09:15 - 09:30

15

Welcome

Organisers

Welcome note from the organisers

Session 1: Formation and organization of star forming dense gas

Chair: Nanda Kumar

09:30 - 09:55

25

Invited

Nicolas Peretto

An observational review of Hub Filaments Systems

09:55 - 10:10

15

Contributed

Shingo Nozaki

Shock-Cloud Interaction as a Pathway to Hub-Filament System Formation in Magnetized Molecular Clouds

10:10 - 10:25

15

Contributed

Jens Kauffmann

The Kinematic and Astrochemical State of Hub-Filament Systems as seen through LEGO

10:25 - 10:40

15

Contributed

Raiga Kashiwagi

Formation of Hub-Filament Systems through Magnetized Filament Collisions: Insights from 3D MHD Simulations

10:40 - 11:10

30

Coffee break

Morning coffee

11:10 - 11:30

20

Poster presentation

Poster block - Group 1

Siddhartha Biswas, Vipin Kumar, Fumiaki Yoshida, Himanshu Kumar, Jianjun Zhou

11:30 - 11:45

15

Contributed

Shuichiro Inutsuka

An Origin of Hub-Filament Systems

11:45 - 12:00

15

Contributed

Satyajeet Moharana

JCMT-SURFING: Unveiling the Velocity-Coherent Filaments and Dense Cores in the Serpens South Hub Filament System

12:00 12:15

15

Contributed

Julian Reid Caza

Dynamics of Dense Gas Filaments in Serpens South

12:15 12:30

15

Contributed

Rohit Mandal

Quantification of systematic biases in continuum-derived dust temperature and column density

12:30 - 14:30

120

Lunch break

Lunch

Lunch / poster viewing

Session 2: From cloud structure to hub formation: observations, dynamics and scaling

Chair: Thushara PIllai

14:30 - 14:55

25

Invited

Daisei Abe

The Origin of Hub-Filament Systems: Radiation-MHD Simulations toward Understanding Massive Star Formation

14:55 - 15:10

15

Contributed

Arup Kumar Maity

A Rotating and Expanding Molecular Ring-like Structure at the Hub of a Hub-Filament System

15:10 - 15:25

15

Contributed

Ezequiel Gonzalez

Identifying filamentary structure in massive star forming protoclusters using ALMA data cubes

15:25 - 15:40

15

Contributed

Rahul Manishkumar Patel

Characterizing the hierarchical structure of filaments. I. On the origin of the length-mass (L-M) scaling relation

15:40 - 16:10

30

Coffee break

Afternoon coffee

16:10 - 16:30

20

Poster presentation

Poster block - Group 2

Manish Chauhan, Ekjot Kaur, Muhammad Usman Shehu, Jiaerken Yeshengbieke, Shreya Pandey, Saurav Sen

16:30 - 16:45

15

Contributed

Naval Kishore Bhadri

A Multiscale View of Hub-Filament Systems: From Cloud-Scale Filamentary Accretion to Protocluster Formation

16:45 - 17:00

15

Contributed

Shivan Khullar

Towards a predictive theory for the star formation outcome of Giant Molecular Clouds

19:00 - 19:30

30

Special invited talk

Phil Myers

A short history of filamentary star-forming clouds

19:30 - 20:30

60

Welcome reception

Welcome Reception

Windflower Resorts, Symposium Venue

Day 2: 1 December, 2026

Session 3: Fragmentation of low-mass laments: cores, substructure and the IMF

Chair: Archana Soam

09:30 - 09:55

25

Invited

Philippe André

The role of filaments and hub-filament systems in the origin of the prestellar core mass function and the IMF

09:55 - 10:10

15

Contributed

Chang Won Lee

Star and Dense Core Formation in Hub-Filamentary Clouds Using the Taeduk Radio Astronomy Observatory Survey of Filaments, the Universal Nursery of Star

10:10 - 10:25

15

Contributed

Akshat Asthana

Quantifying Filament Fragmentation and Core-to-filament mass fractions

10:25 - 10:40

15

Contributed

Frederique Motte

Origin of the IMF revisited thanks to constraints on core subfragmentation and mass growth

10:40 - 11:10

30

Coffee break

Morning coffee

11:10 - 11:30

20

Poster presentation

Poster block - Group 3

Hafiz Nazeer, Rushi Rajesh Mahajan, Sasi Mitra Behara, Indrajit Maity, Watson Paul Varricattu, Kazuhito Motogi

11:30 - 11:45

15

Contributed

Kshitiz Kumar Mallick

Fragmenting Filaments and Emerging Stars - An ALMA 1.3mm dust and molecular line study of OMC-1N

10:45 - 12:00

15

Contributed

Shusuke Utsumi

Core-Core Interactions as a Pathway to Very-Low-Mass Star Formation in Hub-Filament Systems

12:00 12:15

15

Contributed

Yingxi Li

A complete survey of filaments in Cygnus-X

12:15 12:30

15

Contributed

Manash Ranjan Samal

Probing Star Formation Scaling Laws in Parsec-Scale Cluster-Forming Clumps

12:30 - 14:30

120

Lunch break

Lunch

Lunch / poster viewing

Session 4: Fragmentation of high-mass laments: core growth and massive-star assembly

Chair: Devendra Ojha

14:30 - 14:55

25

Invited

Suinan Zhang

Fragmentation in high-mass star-forming regions

14:55 - 15:10

15

Contributed

Lennart Böhm

How do massive stars keep growing? From hub feeding to core growth during feedback in W33 Main

15:10 - 15:25

15

Contributed

Rakesh Pandey

Hub-filament feeding a bloated massive protostar: multiscale accretion in IRAS 19520+2759

15:25 - 15:40

15

Contributed

Yudai Nishikawa

Probing Hot Disk Chemistry at the End Point of Mass Supply in Massive Star Formation

15:40 - 16:10

30

Coffee break

Afternoon coffee

16:10 - 16:25

15

Contributed

Dana Makarova

Future massive-star growth in hub-filament systems: insights from a 3D simulation and synthetic observations

16:25 - 16:40

15

Contributed

Sandhyarani Panigrahy

Evidence for the gravity-driven and magnetically regularized gas flows feeding the massive protostellar cluster in Cepheus A

16:40 - 16:55

15

Contributed

Junhao Liu

The dominance of turbulence over magnetism in the formation of massive star cluster seeds

16:55 - 17:10

15

Contributed

Shantanu Basu

Massive Star Formation from Large Scale Magnetized flows

17:10 - 17:25

15

Contributed

Shivani Gupta

An ALMA study of a massive protocluster

Day 3: 2 December, 2026

Session 5: Hub-filament systems as progenitors of clusters and massive stars

Chair: Suinan Zhang

09:30 - 09:45

15

Contributed

Doris Arzoumanian

Mapping the evolution of magnetized hub-filament systems leading to the formation of star-clusters with low- to high-mass stars

09:45 - 10:00

15

Contributed

Harmeen Kaur

Identifying Multiple Hub–Filament Systems in the Sh 2-284 Star-Forming Complex

10:00 - 10:15

15

Contributed

Lokesh Kumar Dewangan

Discovery of a rich population of compact hub-filament systems in a single star-forming complex

10:15 - 10:30

15

Contributed

Rishi Chenatil

A Rich Population of Hub–Filament Systems in Cygnus X and Evidence for Hierarchical Star Formation

10:30 - 11:00

30

Coffee break

Morning coffee

11:00 - 11:15

15

Contributed

Vineet Rawat

A Massive Cloud, A Modest Cluster: Hierarchical Collapse and Filament-fed Cluster Formation in G148.14+00.41

11:15 - 11:30

15

Contributed

Jeremy Raja Karam

The Connection Between Filament Morphology and Star Cluster Formation

11:30 11:45

15

Contributed

Saurabh Sharma

NGC 2316: A Hub-Filament System in Formation

11:45 12:00

15

Contributed

Masato Kobayashi

The Origin of Star Cluster Mass Functions in Molecular Cloud Evolution

12:00 - 12:15

15

Contributed

Rin Yamada

Filaments and Subsequent Stellar Cluster Formation in the Perseus Molecular Cloud

12:15 - 12:45

20

Poster presentation

Poster block - Group 4

Aayushi Verma, Cysil Tom Baby, Gregory Mathews Ben, Priya Shah Hasan, Neelam Panwar, Savir Ghai, Nanda Kumar (2)

12:45 - 14:30

120

Lunch break

Lunch

Lunch / poster viewing

14:30 - 18:30

240

Visit to Mysuru Palace and Somanathapura Ancient Temple / Free Afternoon

19:00 - 21:30

120

Conference dinner

Conference dinner

Windflower Resorts, Symposium Venue

Day 4: 3 December, 2026

Session 6: Feedback on lamentary structures: from protostellar out ows to H II regions

Chair: Masato Kobayashi

09:30 - 09:55

25

Invited

Stefanie Walch-Gassner

Invited review on stellar feedback (talk title to be confirmed)

09:55 - 10:10

15

Contributed

Paolo Suin

How ionising feedback restructures Hub-Filament Systems

10:10 - 10:25

15

Contributed

Sajay Sunny Mathew

The role of gravity, turbulence, and protostellar feedback in star formation

10:25 - 10:40

15

Contributed

Rohit Chaudhary

Understanding the importance of magnetic fields in the “collect and collapse” model of star formation: a case study towards S104 using JCMT SCUBA2/POL2

10:40 - 11:10

30

Coffee break

Morning coffee

11:10 - 11:30

20

Poster presentation

Poster block - Group 5

Ariful Hoque, Amal George Sheridan, CV Sreejith, Jyotirmoy Dey, Mamta, Manojit Chakraborty, Tarak Chand

11:30 - 11:45

15

Contributed

Toktarkhan Komesh

Hypercompact H II Regions as Tracers of Massive Star Formation and Stellar Dynamics

10:45 - 12:00

15

Contributed

Aardra S

Tracing Star Formation Under Massive Star Feedback: A Multi-Wavelength Study of the Herbig Star PDS 255

12:00 12:15

15

Contributed

Manoj Puravankara

JWST Views of Protostellar Growth and Feedback in the Orion Filamentary Cloud

12:30 - 14:30

120

Lunch break

Lunch

Lunch / poster viewing

Session 7: Magnetic elds: regulating ows, fragmentation and collapse

Chair: Piyali Saha

14:30 - 14:55

25

Invited

Thushara Pillai

Where Magnetic Fields Fit in the Hub-Filament Picture

14:55 - 15:10

15

Contributed

Eswaraiah Chakali

Evidence for the gravity-driven and magnetically-regularized gas flows feeding the massive protostellar cluster in Cepheus A

15:10 - 15:25

15

Contributed

Ria Ramkumar

Characterising magnetic fields at the onset of star cluster formation

15:25 - 15:40

15

Contributed

Rahul Khanna

A numerical investigation of striations: The influence of magnetic fields and filamentary structures

15:40 - 16:10

30

Coffee break

Afternoon coffee

16:10 - 16:30

20

Poster presentation

Poster block - Group 6

Piyali Saha, Sayan Panda, Upasana Rakesh Kumar Gupta, Swapnil Singh, Sujoy Karmakar, Rohit Kumar

16:30 - 16:45

15

Contributed

Mark Krumholz

How important are magnetic fields to filamentary star formation?

16:45 - 17:00

15

Contributed

Omkar Ratan Jadhav

Investigation of Hourglass-shaped Magnetic fields in the G35.20-0.74 Star-Forming Complex

17:00 - 17:15

15

Contributed

Chau Giang Nguyen

Magnetic field tomography in Protostellar Cores via Multiwavelength Dust emission polarization observations

Day 5: 4 December, 2026

Session 8: Star-Gas connection, Hub– lament systems in extreme environments and beyond

Chair: Saurabh Sharma

09:30 - 09:55

25

Invited

Michael Kuhn

Kinematics of Young Stars in Hub-Filament Systems

09:55 - 10:10

15

Contributed

Simran Singh

The Kinematics of Young Stellar Objects in the Extended Solar Neighbourhood

10:10 - 10:25

15

Contributed

Arun Roy

ROCKETS: Detecting the Rocket Effect in Massive Young Stellar Cluster Environments with Gaia

10:25 - 10:55

30

Coffee break

Morning coffee

10:55 - 11:20

25

Invited

Adam Ginsburg

Star formation and hub-filament systems in extreme environments

11:20 - 11:45

25

Invited

Kathryn Grasha

The Extragalactic View of Star Formation: From HII Regions to Galaxy Assembly

11:45 - 12:00

15

Contributed

Shashank Gairola

On the physical processes governing the multi-scale, filamentary network of star formation within galaxies

12:00 - 12:15

15

Contributed

Jessy Jose

Environmental Dependence of Star Formation in the Outer Milky Way

12:15 12:30

15

Contributed

Takashi Hosokawa

Filaments, the IMF, and Star Formation Efficiency Across Metallicity: Clustered High-Mass Star Formation in Turbulent Clouds

12:30 - 14:30

120

Lunch break

Lunch

Lunch / poster viewing

14:30 - 15:30

60

Panel Discussion

Panel Discussion

Impact of the Hub-Filament Geometry on the understanding of Star Formation

15:30 - 15:40

10

Concluding remarks

Organisers

Concluding remarks immediately after the Panel Discussion