André's Pages: Radio Astronomy, C++ & More

André's Pages: Radio Astronomy, C++ and Other Interests

This is a personal set of notes covering radio astronomy, C++ programming, and various subjects I find interesting. Take a look at the latest news and memos, dig into published research, and explore the related links collected here.

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Deep radio image of the EoR0 field showing thousands of galaxies — Deep MWA radio image of the EoR0 field

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30,000 Galaxies in the EoR0 Field

I created a large, deep radio image for the paper "Parametrizing Epoch of Reionization foregrounds: a deep survey of low-frequency point-source spectra with the Murchison Widefield Array". It was taken with the Murchison Widefield Array (MWA) radio telescope and, as of writing, remains the deepest image ever produced with the MWA. Every point-like source in the image is a galaxy, and in total more than 30,000 galaxies can be picked out. The surveyed region of sky covers about 40 x 40 degrees.

Tagged under: Astronomy

A Faster std::vector

This article looks at how the std::vector class is used in the C++ programming language. std::vector is a convenient class for many tasks, but when it holds integral data types such as an int, a bit of overhead can appear. Take, for example, a vector used like this:

Tagged under: C++, vector

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Frequently Asked Questions

What is the EoR0 field image, and how was it created?

The EoR0 field image is a deep radio image produced for the article "Parametrizing Epoch of Reionization foregrounds: a deep survey of low-frequency point-source spectra with the Murchison Widefield Array". It was captured with the Murchison Widefield Array (MWA) radio telescope and, as of writing, was the deepest image ever made with the MWA.

How many galaxies can be seen in the EoR0 field image?

Each point-like source in the image is a galaxy, and altogether more than 30,000 galaxies can be distinguished. The image spans roughly 40 x 40 degrees of sky.

What does the "A faster std::vector" article cover?

It covers use of the std::vector class in the C++ programming language. The article points out that storing integral data types such as an int in a vector can involve some overhead.

Which topics do these pages cover?

These pages cover astronomy, C++ programming, and other subjects of interest, including news and memos, publications, and related links. Articles are tagged by topic, such as Astronomy, C++, and vector.

Where can I find the complete list of publications?

A list of every publication I have authored or coauthored can be found on the Publications page.

Related Resources

Whether you are here for the astronomy write-ups, the C++ notes, or both, the pages are organised by topic so you can move between news, publications and related resources easily. Articles are tagged by subject, making it simple to find everything on a given theme.