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.
STORIES
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
Summer project: The mysterious hydrogen in the barred spiral galaxy NGC 1672
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A 3D tilted-ring model of the HI in NGC 1672 was fitted using 3DBarolo (Di Teodoro & Fraternali 2015), revealing a dual-plateau rotation curve with a rapid rise in rotational velocity at a radius of ~20 kpc (upper right panel). The expected rotational velocity from the baryonic Tully–Fisher relation (Lelli, McGaugh, & Schombert 2015) is consistent with the higher outer-disk velocity, suggesting that this represents the true rotational velocity of the galaxy. The dual plateau points to two possible scenarios: either the presence of two rotating discs, or the bar having a large effect on the motion in the inner regions of the galaxy.
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