From today (August 11th) up until Friday the yearly Perseids meteor shower will have its peak. This phenomenon is not only interesting for amateur astronomers, professional astronomers will be observing them as well.
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In Humans of ASTRON we share stories about the people at ASTRON. Who are the people behind the discoveries and innovations and also, who are the people that make sure that everything runs smoothly? In this second part of the series, we’ll be sharing the story of Jorrit Siebenga, who joined ASTRON in 2017 as research instrument maker.
Throughout the history of astronomy, women have played essential roles towards astronomical breakthroughs. In this article we highlight but a few of these women identified in history from 1600 to the modern era.
In Humans of ASTRON we share stories about the people at ASTRON. Who are the people behind the discoveries and innovations and also, who are the people that make sure that everything runs smoothly? In this second part of the series, we’ll be sharing the story of Emanuela Orrù, support scientist at ASTRON since 2012.
DAILY IMAGE
A Remnant Drifting Overhead
© ASTRON
In the animation above, you can see the power observed by the station with a line of fixed azimuthal beams near Cassiopeia A's transit location after deploying new calibration tables to the superterp and RS307. All of the stations are using their full compliment of LBA antenna, and groups of 24 HBA antenna (either per ear, or the inner tiles for RS307). Time samples are converted into sky coordinates, and samples within 5 degrees of the transit coordinate are plotted.
The LBA stations of the superterp are seen to have the same scintillation pattern in the power data over time (horizontal arcs), given the shared view through the ionosphere.
Overall, we found the LBAs have FoVs of 19.6(5) deg^2, and HBAs of 14.5(1.1) deg^2, with some variations due to disabled antennas in each station. All stations were found to be within uncertainty, or larger, than our requirement of a minimum of 12 deg^2 and 13 deg^2 per field at 60 MHz and 140 MHz, passing the requirement.
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