Orion HST

Agenda Lexington 2025 August 4-8

The Workshop will be held in room 330AB of the Gatton Student Center on the University of Kentucky campus. A map showing the location of the Center, the student housing in Holmes Hall, and a nearby grocery store, may be found here.

As we go along I will post material in folders below this web share. You should bookmark it for easy access. Please join this discussion group for updates on the workshop. This is a great place to ask questions.

If you have questions about Lexington or the U Ky area, several participants are locals who are willing to help.

Before the meeting

Do your homework!

We need to have installed and tested a working copy of Cloudy before we meet. We are approaching the final release of Version 25.00 of Cloudy and expect to have it available for our workshop. Its release will be announced to the group on our forum. To get started, use the release candidate #2 of C25, available now and named c25rc2 on our downloads page.

We have a YouTube channel on using Cloudy! It goes into how to navigate our wiki, download Cloudy, build it, and run models.

Please find all materials regarding PyCloudy here.

Below please find the schedule.


Day 0 Sunday August 3

Prepare for Day 1;
Osterbrock and Ferland, Chapters 1 and 2 (in the Docs folder)
YouTube videos 1-14


Day 1 Monday August 4 (Basics-Chair: Gary Ferland)

The workshop will be held in room 330AB of the Gatton Student Center. Class materials are posted in folders below this web share.

  8:30 -   9:00 Set up
  9:00 -   9:50 Welcome, introduction to Cloudy (By Gary Ferland)
10:00 - 10:55 Introductory presentations 
11:00 - 12:30 Introductory presentations

12:30 - 14:30 Lunch and group discussions
14:30 - 15:20 Start Group projects and posters
15:30 - 16:30 PyCloudy I (By Christophe Morisset ) 

Please find all materials regarding PyCloud here.

16:30 - 17:30 Group projects

17:30 - 18:00 Group summaries

18:00 - ?? no host reception, dinner at Tin Roof. This is one of the local student pubs and is a ten minute walk from the Student Center and dorms.

Prepare for Day 2;
Osterbrock and Ferland, Chapters 3 (in the Docs folder)
YouTube videos 1-14


Day 2 Tuesday August 5 (Stars, parallel Cloudy, BPT diagrams; Chair: Maryam Dehghanian)

  8:30 -   9:00  Set up
  9:00 -   9:30  Stellar atmospheres (By Peter Van Hoof)   
  9:30 - 10:00  Parallel Cloudy (By Peter Van Hoof)
10:00 - 12:00  Group projects

12:00 - 13:30 Lunch
13:30 - 14:20 BPT diagnostic diagrams (By Chamani Gunasekera)
14:30 - 15:00 PyCloudy II (By Christophe Morisset )

15:00 - 17:30 Group projects
17:30 - 18:00 Group summaries


Day 3 Wednesday August 6 (Grains and Molecules; Chair: Chamani Gunasekera)

  8:30 -   9:00 Set up
  9:00 -   9:50 Grain physics (By Peter Van Hoof)    
10:00 - 11:00 Group projects
11:00 - 12:00 A science case (By Maryam Dehghanian)

12:00 - 13:30 Lunch
13:30 - 14:30 Molecular world and Cloudy (By Gargi Shaw)
14:30 - 17:30 Group photo and projects
17:30 - 18:00 Group summaries


Day 4 Thursday August 7 (X-ray-Chair: Gargi Shaw)

  8:30 -   9:00 Set up
  9:00 -   9:50 High-resolution X-rays with Cloudy (By Chamani Gunasekera)   
10:00 - 13:00 Group projects and lunch       
13:00 - 14:00 How to model Observed X-Ray Data using Cloudy? (By Priyanka Chakraborty) 

14:00 - 17:30 Group projects
17:30 - 18:00 Group summaries

Please send in any questions or topics for discussion for tomorrow to the discussion group. 


Day 5 Friday August 8 (Presentations-Chair: Chamani Gunasekera)

  8:30 - 9:00 Set up
  9:00 - 10:00 Group projects
10:30 - 11:50 Group presentations
11:50 - 12:00 Workshop ends