Regular Seminars

• Wednesday Astronomy Colloquium (3pm-4pm), Ogden Centre West Auditorium (OCW017). The astronomy colloquia are delivered by external, invited speakers.
• Friday Lunchtime Astronomy Talks (FLAT; 1pm-2pm), Ogden Centre West Auditorium (OCW017). Currently online on Zoom. The FLAT talks are given by visitors and internal speakers.
• All astronomy and instrumentation lunch (1pm-2pm) on Monday every 4 weeks in OCW017.
• Theory lunch (1pm-2pm) on Monday every 4 weeks in OCW017, offset by 2 weeks from the all astronomy and instrumentation lunch.
• A brief, daily review of astro-ph before coffee every weekday morning. This takes place in the OCW Level 1 break-out space^* at 10:45-11am, with coffee following immediately afterwards. ^*Currently on Microsoft Teams.
• There are also some Special Interest Groups who meet regularly.

Changes to activities during the covid-19 outbreak During the covid-19 restrictions, several on-line discussion groups have been set up, either on Teams or on Zoom. All of the Teams activities are accessed through Microsoft Teams via either the "Durham Astronomy" team or the "CfAI" team. All CEA, CfAI, and ICC members should have access to Teams. The Zoom activities are accessed through the Zoom meeting ID which needs to be sent by the host of the Zoom activity. Below is the summary of the on-line discussion groups on Teams and Zoom:

Activities on Teams	Meeting Times
Astronomy virtual coffee	Daily at 11am
CfAI virtual coffee	Daily at 13pm
arXiv preprint coffee and discussions	Daily at 10:45-11:00am
CGM-IGM JC	Every other Monday at 12pm
Astronomy student JC	Every Wednesday at 11am: only for students
AGN/accretion JC	Every other Wednesday at 1pm
Galaxy clusters and lensing	Every other Thursday at 1pm
Small-scale structure	2nd and 4th Thursday of each month at 1pm
CfAI journal club	Every Thursday at 2pm
Large-scale structure JC	Every other Friday at 12pm (alternates with standard and non-standard cosmology)
Standard and non-standard cosmologies	Every other Friday at 12pm (alternates with large-scale structure JC)
The Half Swan Inn	General chat replacement for Friday pub

Activities on Zoom	Meeting Times
All astronomy and instrumentation lunch	Every 4 weeks on Monday at 1pm (2 week offset from theory lunch
Theory lunch	Every 4 weeks on Monday at 1pm (2 week offset from all astronomy and instrumentation)
CfAI colloquia	Every other Wednesday at 1pm
DESI discussions	Every Wednesday at 1pm
Astronomy colloquia	Every Wednesday at 3pm during term time
Friday Lunchtime Astronomy Talks	Every Friday at 1pm
GALFORM discussions	Sign up with Cedtic Lacey

Note: the machine-learning journal club is now subsumed within IDAS at 4pm on Friday (on Teams). There is also a private Teams meeting for the Royal Society Summer Science Exhibition.

Lecture Series

Durham hosts two major lecture series of interest to astronomers:

• The Grubb Parsons Lecture
  Given annually by a distinguished astronomer from outside the Department, it is named in honour of the contributions made by the Newcastle optical and engineering company Grubb Parsons Ltd to the development of astronomical instrumentation in the UK.
• The Temple Chevallier Lecture
  The Temple Chevallier lecture series honours the achievements of Temple Chevallier (1794-1873), Durham's first (and only) Professor of Mathematics and Astronomy. The bi-annual lectures reflect his interests, encompassing, in turn, topics in astronomy, engineering, mathematics and theology.

Other talks

• The student run Durham University Astronomical Society has a programme of fortnightly talks during term, usually held at lunchtimes in the Bransden Room.