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Overview

Logistics

Program

Reaching the venue

Before the workshop

After the workshop

Hands-on tutorials

Tutorial 1: Visualization with CARTA

Tutorial 2: Continuum Imaging

Tutorial 3 Line Imaging

Tutorial 4: Self-Calibration

Tutorial 5: ALMA Archive

Lectures

Lecture 1: ALMA Overview

Lecture 2: Basics of Interferometry and Imaging

Lecture 3: Introduction to CASA

Lecture 4: Introduction to Calibration and Self-Calibration

Lecture 5: Science Ready Data Products and Weblog

Lecture 6: NRAO/NAASC services

This page outlines a few key steps to complete before the workshop to help you make the most of it.

ALMA Primer Videos

If you’re new to ALMA or interferometry, or in any case for a very helpful refresher, I recommend checking out the ALMA Primer video series, a great set of short videos that clearly explain the basics.

They’re all helpful, but the ones most relevant to the topics we’ll cover during the workshop are:

• An introduction to Calibration
• An introduction to Self-Calibration
• An introduction to CLEAN
• Weighting in Imaging
• Intro to CLEAN masking

Install CASA

CASA is primarily supported on Linux and macOS.

1. Go to the official CASA website: CASA Download Page
2. Choose the appropriate version of CASA based on your operating system (Linux, macOS). For this workshop, we will work with the “ALMA pipeline” version 6.6.6.
3. You can find some more detailed instructions for the installation here.

Check CASA installation

Once installed, test that CASA runs correctly:

1. Open a terminal

2. Type:

   casa
   

   (Make sure symbolic links were created correctly during installation.)

   If the installation is successful, you’ll see several initialization messages, the weblog will open in a separate window, and a Python prompt will appear like this:

   CASA <1>:
   

3. To exit CASA, just type:

   CASA <1>: exit
   

More information and troubleshooting tips can be found at: Getting Started in CASA

Install CARTA

Download and install CARTA https://cartavis.org/#download (version 5.0, stand-alone application recommended)

Download ALMA tutorial datasets and images

Please download

• the fits files (214 MB) we will visualize with CARTA:

  https://drive.google.com/file/d/1lKdd86GH0rui_D_hovT7nmfaaHNUIeDZ/view?usp=share_link

• the data files (2.27 GB) we will be working on in the imaging and calibration tutorials: https://bulk.cv.nrao.edu/almadata/public/ALMA_firstlooks/twhya_firstlook.tgz

On the day

On the day of the workshop, to follow the hands-on sessions interactively, please bring:

• your own laptop (with Linux or macOS)
• charger

If you run into any issues or have questions, feel free to reach out. You can contact Pietro at: [email protected]