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Re-entering rocket body above Dwingeloo
© Albert van Duin, Felix Bettonvil, Tammo Jan Dijkema, Cees Bassa In the early morning of February 18, the sky was illuminated by a large fireball. This triggered many reports from UK, Netherlands,...
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Successful delivery of HARPS3 instruments to Cambridge
© Elswijk & Kragt HARPS3 is a high resolution (R~115,000) echelle spectrograph with a wavelength range from 380-690 nm. It is part of the Terra Hunting Experiment - a future 10-year radial velocity...
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MICADO Filter Wheel Mechanism functional test
© NOVA Over the last few weeks, the MICADO filterwheel mechanism (consisting of 2 filterwheels) was assembled and tested in the ASTRON cleanroom. These warm functional tests were passed successfully....
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Spectral modelling of Cygnus A and impact on the LOFAR 21-cm signal power...
© CC One of the biggest challenges in cosmological 21-cm experiments is the presence of extremely bright foregrounds, like Cygnus A, which can introduce systematics that obscure the faint 21-cm signal...
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Colloquium: Classical Be stars - Constraining interaction physics of massive...
© Julia Bodensteiner Massive stars are cosmic engines. Like chemical factories, they produce key elements, they are progenitors of supernovae, neutron stars and black holes, and they play a crucial...
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[Colloquium] Tracing Cosmic and Galactic Structures with MeerKAT HI Surveys
© Sushma Kurapati Galaxy evolution is intricately linked to the availability of gas for accretion and the surrounding environment at both local and global scales. Galaxies require a continuous gas...
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Colloquium Gudmundur Stefansson: Pathways to Detecting and Characterizing...
© Gudmundur Stefansson One of the foremost goals of exoplanet science is the detailed characterization of terrestrial planets that potentially could harbor life. I will discuss near-term projects and...
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Onboarding Trip #1
© Josine Haas On Wednesday March 19th was the very first Onboarding Trip! With a mixed group of colleagues from different departments, we had a fantastic day. Not only because the sun was shining so...
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