Karl G. Jansky VLA Tutorials

EVLA Tutorials

• Carbon Star IRC+10216: high frequency (36GHz), spectral line data reduction

• IRC+10216 Part 1: editing, calibration
• IRC+10216 Part 2: continuum subtraction, imaging, selfcal

• (Dataset size: 1.1GB)

Calibrate and make image cubes of the line emission from this asymptotic giant branch star. This is a high-frequency EVLA dataset. Includes:

• Inspecting data; basic flagging & calibration
• Subtracting continuum emission
• Imaging the spectral lines
• Imaging the continuum
• Image analysis
• Self-calibration

• Supernova Remnant 3C391: 6cm Polarimetry and Continuum Imaging, Mosaicking

• 3C391 Tutorial Part 1: calibration, imaging
• 3C391 Tutorial Part 2: Image Analysis, Polarization, Self-calibration

• (Dataset size: 3.1GB)

Calibrate EVLA full polarization data, image a mosaic of the region in full Stokes and create a spectral index map. Includes:

• Inspecting data; basic flagging
• Calibration
• Image Analysis and Manipulation
• Polarization Imaging
• Spectral Index imaging
• Self-calibration

EVLA Tutorials for more Advanced Users

• Supernova SN2010FZ: Wide-band, narrow-field imaging; C-band (5-7 GHz) \

• SN2010FZ Tutorial
• (Download dataset size: 2.9GB)

Calibrate and image a galaxy field for this mid-frequency EVLA observation. This includes:

• Excising RFI from the data
• Basic flagging and calibration steps
• Imaging from one spectral window to full dataset
• Using multi-scale, multi-frequency synthesis
• Image analysis

• Supernova G55.7_3.4: Wide-band, wide-field imaging; L-band (1-2 GHz)

• G55.7+3.4 Tutorial
• (Download dataset size: 14GB)

This low-frequency EVLA tutorial for the observation of a supernova remnant focuses on RFI excision as well as imaging wide-field and wide-fractional-bandwidth data. This includes:

• Basic flagging and evaluation
• Different methods for automatic RFI excision
• Calibrating the data
• Exploring different imaging options: widefield, multi-scale, and multi-frequency synthesis

Specific Topics

• CASA: Writing a CASA task

Presents the basics of writing a CASA task, and provides examples of tasks that will be helpful and instructive.

• Imaging Flanking Fields

• Transient reduction pipeline

• Obtaining EVLA Data: 3C 391 Example

Other

• Data Calibration, Imaging, and Analysis - simplified for Community Day Events: EVLA high frequency Spectral Line Tutorial - CDE