Onze publicaties
The temperature and metallicity distributions of the ICM: insights with TNG-Cluster for XRISM-like observations
01/04/2026 - High-Energy
The new era of high-resolution X-ray spectroscopy will significantly improve our understanding of the intracluster medium (ICM) by providing precise constraints on its underlying physical properties. However, spectral fitting requires reasonable assumptions on the thermal and chemical distributions of the gas. We use the output of TNG-Cluster, the newest addition to the IllustrisTNG suite of…
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The Onset of a Compton-thick Wind in GX 13+1
01/03/2026 - High-Energy
The X-ray Imaging and Spectroscopy Mission (XRISM) recently reported the discovery of a recurrent Compton-thick accretion disk wind from the neutron star X-ray binary GX 13+1. Many earlier observations have revealed multicomponent disk winds from this system; the wind seen by XRISM was similar but featured a column density 1 order of magnitude higher than…
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Giant Outer Transiting Exoplanet Mass (GOT’EM) survey: VII. TOI-6041: A multi-planet system including a warm Neptune exhibiting strong transit-timing variations
01/03/2026 - Exoplanets
We present the characterisation of the TOI-6041 system, a bright (V = 9.84 ± 0.03) G7-type star hosting at least two planets. The inner planet, TOI-6041 b, is a warm Neptune with a radius of 4.55−0.17+0.18 R⊕, initially identified as a single-transit event in TESS photometry. Subsequent observations with TESS and CHEOPS revealed additional transits,…
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Galaxy Mergers Classification Using CNNs Trained on Sérsic Models, Residuals, and Raw Images
01/03/2026 - Low-Energy
Galaxy mergers are crucial for understanding galaxy evolution, and with large upcoming datasets, automated methods, such as convolutional neural networks (CNNs), are essential for efficient detection. It is understood that CNNs classify mergers by identifying deviations from the regular, expected shapes of galaxies, in particular faint features, which are indicative of a merger event. In…
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AMKID: A large KID-based camera at the APEX telescope
01/03/2026 - Technology
Thermal emission at submillimeter wavelengths carries unique information for many astronomical applications, ranging from disks and planet formation around young stars to galaxy evolution studies at cosmological distances. Advancing the mapping speed to detect this faint emission in ground-based astronomy has been a technical challenge for decades. The APEX Microwave Kinetic Inductance Detector (AMKID) camera…
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A JWST Transit of a Jupiter Analog. I. Constraints on the Oblateness of Kepler-167 e
01/03/2026 - Exoplanets
In 2024 October, JWST observed a transit of Kepler-167 e, a Jupiter-analog planet on a 1000+ day orbit. These observations, recorded over a long baseline of nearly 60 hr, were designed to search for signatures of planetary oblateness and/or exomoons comparable to Ganymede. In this first in a series of studies analyzing these data, we…
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Michael Wise
Algemeen en Wetenschappelijk Directeur van SRON (Prof. Dr.)
“Om te werken bij een instituut in de voorhoede van de nieuwe technologie, nieuwe ruimtemissies en nieuwe antwoorden op wetenschappelijke vragen, dat is ongelooflijk inspirerend.”
