Homework 2017 INAOE, Tonantzintla
Introduce yourself
Help prepare the list of participants and introductory talk - due Wednesday June 28
We will create a handout giving names, institution, a small photo, and research interests of all participants. This will allow us to get to know one another more quickly. Please send a small passport-style photo (mainly your face), your affiliation, and a brief statement of research interests, to progharo@inaoep.mx. Due by Wednesday June 28.
We will all give 4-minute introductory presentations on our research interests and background. Please send a one-page landscape format PDF of your talk and send it to progharo@inaoep.mx, due by Wednesday June 28. We will project this on the computer when you give your talk. We will break up into small teams to work on research projects and this introduction will help identify participants with similar interests.
You should also bring a printed poster to display during both weeks of the workshop.
The local website for the workshop is here.
Here is the ftp site containing some documents we shall use.
Astrophysics of Gaseous Nebulae, 2nd edition
We will use Osterbrock & Ferland (2006) extensively. Bring your copy if you have one. PDFs of sections the section we needed will also be available for download at the ftp site.
Cloudy
Bring a laptop so you can compute models during the workshop
We want to spend our time thinking about the astronomy rather than the computer science. You need to have a working copy of Cloudy to participate. You should be able to create an input deck, run Cloudy, and make plots of the predictions during the workshop.
It would be best to bring a laptop to do the simulations and plots locally. This is the best way to participate. The classroom will have wifi so it should be possible to log onto another computer to do this models elsewhere.
We all need to register our laptop mac addresses on the INAOE interent. To do so send your mac address to progharo@inaoep.mx by Wednesday June 28.
Install Cloudy
Instructions for downloading and unstalling Cloudy are here. Vital Fernandez created a nice video on how to build and run Cloudy.
Problems?? Search our Yahoo group to see if others have solved it, and post a question if you don't find help.
You should make it through at least step 5 of the instructions on this site.
When you are done, you should have a script "run" that will read input from "model.in" and produce the "model.out" output file.
The workshop ftp site will be used to save copies of files used during class. You should bookmark it so you can get back to it easily.
Have access to the code's documentation
The documentation is located in the docs directory of the Cloudy download. You should be able to view Hazy1.pdf and Hazy2.pdf, the documentation files, on your laptop. Please don't print them.
Read the Cloudy Quick Start Guide
You should look over the Cloudy Quick Start Guide in the docs directory before the workshop.This is a short introduction to all of Cloudy. Read it to get an overview of what we will be discussing.
Run the "hii_Um3.in" input script and plot the results
You will find this test in the subdirectory ../tsuite/auto where .. indicates the top level of your Cloudy download. Several files will be created when you compute the model. The most important is the main output, named "hii_Um3.out". if you use our recommended "run" script. Look at the last lines in that file. They should say "Cloudy exited OK". If they don't you have problems and should investigate.
We will make lots of plots showing predicted quantities during the workshop. You will need to compute models and create plots while in the class. Gnuplot is popular among people who like its command line interface. I use Jeremy Sanders' Veusz program, which is GUI based and very Cloudy friendly. The appendix of the Quick Start Guide explains how we use Veusz.
The file "hii_Um3.ovr" is the "overview" file that was created when you ran Cloudy. It has lots of information about the physical conditions in the cloud. The first row gives column headers. The remaining rows give properties of the cloud at each depth point. They are tab delimited fields meaning that a tab character separates columns.
Make a plot in which the depth into the cloud is the x-axis and the gas the kinetic temperature is the y-axis. The depth in cm is the first column in the overview file. The temperature is the second. Save a copy of the plot in PDF format. Forward the plot as an email to the Yahoo Workshop group. Deadline Friday June 30.