Tutorial for AstroPy MAST API filter/downloading, Astroquery Gaia Vizier catalog querying and overlaying them on the same figure

[fire-ae]

Cover of the provided tutorial:

Retrieving images from the MAST API, querying Gaia/Vizier catalogs on image-relevant region and overlaying them all Authors Y. Güray Hatipoğlu

-ORCID ID = 0000-0002-7538-6265

-Github Profiles =

  https://github.com/torna4o  

  https://github.com/fire-ae

Learning Goals

Downloading astronomical images via MAST API by querying with criteria and region Querying Gaia and Vizier catalogs around the region the retrieved image spans Plotting the image and overlaying catalog object locations in the same figure Keywords

catalog query, automatic download, MAST, Vizier, plotting

Summary

This tutorial utilizes MAST API to filter and query different parts of the sky and download the related image products. Then, it retrieves World Coordinate System (WCS) information from the downloaded products and provide these as inputs to the catalog querying. After this step, Gaia or any Vizier catalog will be queried according to the set rectangle, having in its center the image relevant coordinate, and a specified rectangular width and height to either focus on a part of the image, or span the image, or put the image in a wider context of catalogged objects. Finally, both the image and queried catalog will be plotted on the same figure.

Colaboratory notebook link: https://colab.research.google.com/drive/12z27bO1oM6e3beZ9M4qHrS2WDoAaveGY?usp=sharing

Here is the Google Drive folder with the requirements.txt: https://drive.google.com/drive/folders/1_RYSPl9LoB7YP7qnaq684h33gGNZ8Obm?usp=sharing