Polarization Calibration Data

This repository contains NANOGrav's polarimetric profiles as taken with the Arecibo Observatory. Clicking a specific link will download the data for the source indicated by the given row, at the frequency indicated in the given column. We have also provided versioned tarballs of the catalog's profiles above the table for your convenience.

All data files are PSRFITS format. As such, they are compatible with the PSRCHIVE software suite (seepsrchive.sourceforge.net and references therein). For more information regarding this type of data product, please see the details within "PSRCHIVE and PSRFITS: An Open Approach to Radio Pulsar Data Storage and Analysis" (Hotan, van Straten & Manchester 2004).

For information regarding the aquisition and reduction of the data found in this repository see:

• Version 2.1 - "The NANOGrav 12.5-Year Data Set: Polarimetry, Rotation Measures, and Galactic Magnetic Field Strengths from NANOGrav Observations with the Green Bank Telescope"(Wahl et al. 2021; v2)
• Version 2.0 - "The NANOGrav 12.5-Year Data Set: Polarimetry, Rotation Measures, and Galactic Magnetic Field Strengths from NANOGrav Observations with the Green Bank Telescope"(Wahl et al. 2021; v1)
• Version 1.0 - "The Nanograv 11-Year Data Set: Arecibo Observatory Polarimetry And Pulse Microcomponents" (Gentile et al. 2018)

 

Note: The signs of Q and U are different between Gentile et al. 2018 and Wahl et al. 2022 (Q is positive and U is negative in the former, and Q is negative and U is positive in the latter). This does not affect the reported intensity or overall linear and circular polarization.

Version 2.1 (July 21st, 2021)

• Full-Frequency Profiles - [Tarball]
• Frequency-Scrunched Profiles - [Tarball]

Version 2.0 (April 9th, 2021)

• Full-Frequency Profiles - [Tarball]
• Frequency-Scrunched Profiles - [Tarball]

Version 1.0 (January 18th, 2018)

• Full-Frequency Profiles - [Tarball]
• Frequency-Scrunched Profiles - [Tarball]