MeerKAT Radio Observations of ESO 137-006

Description

MeerKAT radio telescope visibility data for the radio galaxy ESO 137-006, located in the Norma galaxy cluster (Abell 3627) at a distance of approximately 70 megaparsecs. The observations cover two frequency bands (980–1080 MHz and 1356–1440 MHz) and comprise 14 hours of on-target integration time taken in May 2019 using all 64 MeerKAT antennas. These data led to the discovery of multiple collimated synchrotron threads (CSTs) — narrow, thread-like structures of radio emission connecting the galaxy's radio lobes — a configuration not previously observed in radio galaxies (Ramatsoku et al. 2020, A&A 636, L1).The data are stored in Zarr format, implementing the CASA Measurement Set v2 data model. They are cloud-native and can be accessed directly from S3 using the dask-ms Python library without prior download. The dataset consists of three Measurement Sets: one primary calibrator and two target-field observations. Each target dataset is about 1.1TB compressed (~3TB uncompressed).A key community challenge associated with this dataset is performing distributed radio interferometric imaging (gridding, FFT, deconvolution) at scale directly on cloud storage — a workflow directly relevant to future Square Kilometre Array (SKA) pipelines.

Update Frequency

Not updated

License

Creative Commons Attribution 4.0 International (CC BY 4.0). Attribution required for refereed scientific publications — please cite Ramatsoku et al. (2020), A&A 636, L1, https://doi.org/10.1051/0004-6361/202037800.

Documentation

https://github.com/ratt-ru/ratt-public-open-data-tutorial/blob/main/documentation.md

Managed By

South African Radio Astronomy Observatory (SARAO)

See all datasets managed by South African Radio Astronomy Observatory (SARAO).

Contact

sperkins@sarao.ac.za

How to Cite

MeerKAT Radio Observations of ESO 137-006 was accessed on DATE from https://registry.opendata.aws/meerkat-eso137-006. Ramatsoku, M. et al. (2020). Collimated synchrotron threads linking the radio lobes of ESO 137-006. Astronomy & Astrophysics, 636, L1. https://doi.org/10.1051/0004-6361/202037800

Usage Examples

Tutorials

• Get To Know A Dataset: MeerKAT ESO 137-006 by Simon Perkins
  
  

Publications

• Collimated synchrotron threads linking the radio lobes of ESO 137-006 by Ramatsoku, M. et al.