Tue 27 Feb 13:00: TBC
Abstract not available
- Speaker: Claudia Toci (ESO)
- Tuesday 27 February 2024, 13:00-14:00
- Venue: Ryle seminar room + ONLINE - Details to be sent by email.
- Series: Exoplanet Seminars; organiser: Dr Emily Sandford.
Tue 13 Feb 13:00: TBC
Abstract not available
- Speaker: Daniela Iglesias Vallejo (Leeds)
- Tuesday 13 February 2024, 13:00-14:00
- Venue: Ryle seminar room + ONLINE - Details to be sent by email.
- Series: Exoplanet Seminars; organiser: Dr Emily Sandford.
Tue 06 Feb 13:00: TBC
Abstract not available
- Speaker: Laura Harbach (Imperial)
- Tuesday 06 February 2024, 13:00-14:00
- Venue: Ryle seminar room + ONLINE - Details to be sent by email.
- Series: Exoplanet Seminars; organiser: Dr Emily Sandford.
Tue 30 Jan 13:00: TBC
Abstract not available
- Speaker: Andrew Swan (Warwick)
- Tuesday 30 January 2024, 13:00-14:00
- Venue: Ryle seminar room + ONLINE - Details to be sent by email.
- Series: Exoplanet Seminars; organiser: Dr Emily Sandford.
Tue 23 Jan 13:00: From dust to planets: The ALMA and VLA view of planet formation
Over the last decade, the Atacama Large Millimeter/submillimeter Array (ALMA) made it possible to observe protoplanetary discs, the birth sites of planets, at unprecedented angular resolution and sensitivity, revolutionizing our understanding of planet formation. When observed at high-enough angular resolution, protoplanetary discs show sequences of axisymmetric dark and bright substructures, colloquially referred to as “gaps and rings”. The origin of such substructures and the role they play in the planet formation process are, however, still debated. They are considered to be either the signposts of ongoing interactions between discs and their hosting (proto-)planets, or the ideal location for the formation of new planetary bodies. The best way to solve this “chicken and the egg” problem is characterizing the physical properties of these gaps and rings. In this talk, I will first discuss recent attempts to observationally infer the size, density, and temperature of dust in these rings, relying on collecting and modelling multi-frequency, i.e. (sub-)mm to cm, continuum data in a handful of well studied systems. I will then show how dust properties, in combination with gas kinematics, can be used to understand if bright rings are prone to the formation of new planets. Finally, I will discuss how my results can be extended to a statistical level using mid-resolution observations of populations of discs in nearby star-formation regions.
- Speaker: Francesco Zagaria (IoA)
- Tuesday 23 January 2024, 13:00-14:00
- Venue: Ryle seminar room + ONLINE - Details to be sent by email.
- Series: Exoplanet Seminars; organiser: Dr Emily Sandford.
Mon 03 Jun 13:00: Title to be confirmed
Abstract not available
- Speaker: Deanna C Hooper(University of Helsinki)
- Monday 03 June 2024, 13:00-14:00
- Venue: CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].
- Series: Cosmology Lunch; organiser: Fiona McCarthy.
Fri 23 Feb 11:30: TBD
Abstract not available
- Speaker: Alessandro Trinca (Rome)
- Friday 23 February 2024, 11:30-12:30
- Venue: Ryle seminar room + online.
- Series: Galaxies Discussion Group; organiser: Sandro Tacchella.
Fri 09 Feb 11:30: TBD
Abstract not available
- Speaker: Rosa Valiante (Rome)
- Friday 09 February 2024, 11:30-12:30
- Venue: Ryle seminar room + online.
- Series: Galaxies Discussion Group; organiser: Sandro Tacchella.
Wed 06 Mar 14:00: Title to be confirmed
Abstract not available
- Speaker: Steve Abel (IPPP)
- Wednesday 06 March 2024, 14:00-15:00
- Venue: MR2.
- Series: Theoretical Physics Colloquium; organiser: Hannah Banks.
Wed 24 Jan 14:00: Title to be confirmed
Abstract not available
- Speaker: Gauthier Durieux (Universite Catholique de Louvain)
- Wednesday 24 January 2024, 14:00-15:00
- Venue: MR2.
- Series: Theoretical Physics Colloquium; organiser: Hannah Banks.
Tue 23 Jan 11:15: Probing the M Dwarf Cosmic Shoreline with JWST
M dwarfs provide one of the most promising routes to measure the atmospheres of rocky exoplanets. However, exoplanets in orbit around M dwarfs must contend with high and prolonged XUV irradiation that can completely remove their atmospheres, raising the question of which, if any, rocky exoplanets around M dwarfs retain an atmosphere? One way to address this question is to determine whether M dwarf rocky exoplanets follow a “Cosmic Shoreline”, an extrapolation of the irradiation–escape velocity relation observed in the Solar System that separates objects with atmospheres from those without. I will present results from JWST GO 1981 that is probing the existence of an M dwarf Cosmic Shoreline through transmission spectroscopy of five rocky exoplanets around M dwarfs.
- Speaker: Dr. James Kirk, Imperial College London
- Tuesday 23 January 2024, 11:15-12:00
- Venue: Coffee area, Battcock Centre.
- Series: Hills Coffee Talks; organiser: Charles Walker.
Mon 20 May 13:00: Title to be confirmed
Abstract not available
- Speaker: Sylvia Galli (Institut Astrophysique de Paris)
- Monday 20 May 2024, 13:00-14:00
- Venue: CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].
- Series: Cosmology Lunch; organiser: Fiona McCarthy.
Mon 20 May 13:00: Sylvia Galli (Institut Astrophysique de Paris)
Abstract not available
- Speaker: Speaker to be confirmed
- Monday 20 May 2024, 13:00-14:00
- Venue: CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].
- Series: Cosmology Lunch; organiser: Fiona McCarthy.
Mon 12 Feb 13:00: Title to be confirmed
Abstract not available
- Speaker: Fabian Schmidt (MPA, Garching)
- Monday 12 February 2024, 13:00-14:00
- Venue: CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].
- Series: Cosmology Lunch; organiser: Dr Dong-Gang Wang.