12-14 April 2021
Nordita
Europe/Stockholm timezone

Online Meeting

 

Platfotm: Zoom

Time zone: CEST - Central European Summer Time (Stockholm time)


Scientific rationale

The production and processing of cosmic dust is, to a very high degree, related to supernovae (SNe) arising from massive stars. From the explosion event, to the nebular phase, to the remnant stage, we see nucleation, accretional growth, sputtering, sublimation, fragmentation, and several other processes taking place. Dust grains found in the interstellar medium (ISM) are believed to have formed in SNe and evolved stars and are then further processed and grow in the ISM. SNe play a pivotal role in inducing dust processing as SN shock fronts propagate through the ISM. To what extent this leads to a net destruction of dust material is debated and the net production of dust associated with SN events remains uncertain.

This online mini-workshop aims at bringing together experts in SNe and their evolution and interstellar dust to discuss the role that SNe play in the cosmic dust cycle. Particular emphasis will be put on dynamics; SN blast waves, driving of ISM turbulence, and the transport of dust grains.


Schedule

The schedule can be downloaded here. All times are CEST.

14:00 CEST = 05:00 PDT = 08:00 EDT = 13:00 BST = 20:00 CST = 21:00 KST
 

Day 1 - Monday, 12 April 2021

14:00 – 14:10       Lars Mattsson - Welcome

I. Dust formation in supernova remnants

Chair: Rubina Kotak

14:10 – 14:35       Mike Barlow - The dust mass in Cassiopeia A derived from infrared and optical line

                           flux differences | video | slides |

14:35 – 15:00       Thiem Hoang - Effects of supernova feedback on the surrounding dust | video |

15:00 – 15:25       Arkaprabha Sarangi - The timeline of dust formation in core-collapse supernovae

                          | video |

15:25 – 15:50       Maria Niculescu-Duvaz -  Dust masses for a range of supernovae from modelling the

                           red-blue optical line asymmetries | video | slides |

                           Break

Chair: Florian Kirchschlager

16:10 – 16:35       Mikako Matsuura - Spitzer and Herschel studies of dust in supernova remnants in the

                           Small Magellanic Cloud | videoslides part 1 | slides part 2|  

16:35 – 17:00       Roger Wesson - Observational limits on the early-time dust mass in SN 1987A

                          | video |

17:00 – 17:25       Jeonghee Rho - Near-IR observations of CO and dust formation in supernovae

                          | video | slides part 1 | slides part 2 |

17:25 – 17:50       Jeremy Chastenet - The dust content and polarisation of Cassiopeia A and its

                           surroundings | video |

 

Day 2 - Tuesday, 13 April 2021

II. Dust evolution in the presence of forward and reverse shocks

Chair: Lars Mattsson

14:00 – 14:25       Felix Priestley - Observational constraints on dust destruction in shocks | video |

                          | slides |

14:25 – 14:50       Sergio Martínez-González - Destruction of dust grains by supernovae within bubbles

                          | video | slides |

14:50 – 15:15       Franziska Schmidt - Hydrodynamic simulations of dust destruction by supernova

                           remnant shocks | video | slides |

15:15 – 15:40       Jonathan Slavin - The evolution of supernova-formed dust grains including stellar

                           wind and magnetic field effects | video | slides |

                           Break

III. Presolar dust

Chair: Anja Andersen

16:00 – 16:25      Rhonda Stroud - Searching for interstellar signatures in nanodiamonds and organic

                          matter from chondritic meteorites | video |

16:25 – 16:50      Peter Hoppe - Dust from supernovae found in primitive solar system materials

                         | video |   

16:50 – 17:15      Larry Nittler - Electron-capture supernova dust in the solar system | video |

 

Day 3 - Wednesday, 14 April 2021

IV. Dust in galaxies

Chair: Fred Gent

14:00 – 14:25       Hiroyuki Hirashita - Effects of supernova feedback and dust processing in circum-

                           galactic dust | video | slides |

14:25 – 14:50       Miikka Väisälä - What can a supernova driven dynamo tell us about polarization of

                           dust in our galaxy? | video | slides |

14:50 – 15:15       Mika Juvela - Interstellar dust in star-forming regions | video |

15:15 – 15:40       Ilse De Looze - The competition between supernova dust production, interstellar

                           growth and supernova shock dust destruction processes in nearby galaxies

                          | video | slides |

15:40                   All participants - Virtual group photo

                           Break

16:00 – 16:25       Ambra Nanni - Investigating metal and dust in low-metallicity local and high-redshift

                           galaxies | video |

16:25 – 16:50       Luca Graziani - The impact of various stellar populations on the assembly of dusty

                           galaxies at z > 4 | video |

16:50 – 17:15       Ezra Brooker - Dependence of dust formation on the supernova explosion | slides |

                           | video |

17:15 –  …            All participants - Discussion round | video |

                           Darach Watson - Summary of the workshop


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