With my group at API, I study neutron star physics, accretion flows, jets and winds using radio, infrared, optical, UV and X-ray observations from various Earth-based and space-based telescopes. The prime instruments we work with are the Hubble Space Telescope, NuSTAR, Chandra, XMM-Newton, Swift, NICER and XRISM satellites, the Isaac Newton Telescope, Magellan, Gemini, and Very Large Telescope observatories, as well as the Very Large Array and Australia Telescope Compact Array radio facilities.

Current team members:
PhD candidates
Stefanie Fijma: PhD candidate, probing binary evolution through multi-wavelength observations of binaries with compact objects (2021-present).
Eleonora Caruso: High-resolution X-ray spectroscopy of X-ray binaries with XRISM (2023-present).

Master students
Divyanshi Agrawal: high-resolution X-ray observations of the accretion disk atmosphere in a neutron star X-ray binary (co-advised with Elisa Costantini).
Siddarth Gandini: crust cooling of accretion-heated neutron stars (co-advised with Rudy Wijnands).
Corinna Olsen: high-resolution X-ray observations of the accretion disk atmosphere in a neutron star X-ray binary (main adviser Sascha Zeegers).
Simo de Vosse: simulating the impact of thermonuclear bursts on the accretion flow (main adviser Oliver Porth).
Qianhang Chen: searching for radio nebulae around X-ray binaries.

Undergraduate (bachelor) students
Mats Bannink: the multi-wavelength outburst evolution of a very-faint X-ray binary.

Previous team members (since 2016):
Postdocs
Aastha Parikh: X-ray and UV observations of accreting black holes and neutron stars (2019-2020).
Juan Hernández Santisteban: UV/optical/nIR observations of accreting black holes, neutron stars and white dwarfs (2016-2019).

PhD candidates
Jakob van den Eijnden: PhD candidate, X-ray/nIR/radio observations of accreting neutron stars (2016-2020). Now Warwick Prize Fellow at the University of Warwick, UK
Khaled Alizai: PhD candidate at the Technical University of Denmark, multi-observatory observations of thermonuclear X-ray bursts (2019).

Post-master students
Osman Ahmed: X-ray observations of very-faint X-ray transients (2019-2024).
Jari van Opijnen: X-ray/nIR correlation of X-ray binaries (2020-2021).
Elena López Navas: on ERASMUS+ program, X-ray/UV observations of accreting neutron stars and black holes (2018).

Master students
2023-2024
Noud Hover: new search algorithms for narrow lines in X-ray binary spectra.
Karla Rojas Martinez: high-resolution X-ray observations of the accretion disk atmosphere in a neutron star X-ray binary (co-advised with Elisa Costantini).

2022-2023
Iris Reitsma: the origin of the nIR emission in X-ray binaries.
Simon van Eeden: a new search search algorithm for narrow lines in X-ray binary spectra.
Eleonora Caruso: high-resolution X-ray observations of the accretion disk atmosphere in a neutron star X-ray binary (co-advised with Elisa Costantini).
Vysakh Puthusseril Anilkumar: Astrovaria, developing an algorithm to characterize the shapes of lines in UV/optical/nIR spectra of X-ray binaries.

2021-2022
Giorgos Zervas Koukogias: connecting the X-ray spectrum of neutron star X-ray binaries to their radio properties.
Konstantinos Zafeiropoulos: high-resolution X-ray observations of accretion disk atmospheres and winds in neutron star X-ray binaries (co-advised with Elisa Costantini).
Eleonora Caruso: Astrovaria, the thermonuclear bursts of the neutron star X-ray binary MXB 1659-28.

2020-2021
Luna van Haastere: H-alpha nebulae around X-ray binaries.

2019-2020
Mitchell Stoop: X-ray/UV/nIR/radio observations of an accreting black hole candidate.

2018-2019
Maria Georganti: X-ray/UV/nIR observations of a quiescent black hole candidate.
Alessio Marino: on ERASMUS+ program, neutron star mass/radius constraints from X-ray observations of quiescent X-ray binaries.

Undergraduate (bachelor) students
2023
Rosa Verpoort: a white dwarf X-ray transient in the Galactic center?
Amber van Wijck: probing the evolution of X-ray binaries through their UV spectra.

2022
Daan de Rijk: very-faint X-ray transients in the Galactic center.
Sophie Schot: Undergraduate student technical physics at Fontys University of Applied Sciences, the accretion flow of a low-luminosity black hole X-ray binary.

2021
Mees Petrus: the nature of very-faint X-ray transients from their spectra.
Simon van Eeden: the nature of very-faint X-ray transients from their light curves.

2019
Alexis Andres: on ASPIRE program, X-ray flares from the supermassive black hole Sgr A*.
Jelle Groot: fast transient X-ray events in the center of the Milky Way.
Marieke van Etten: transient X-ray binaries in the Galactic center region.
Stefanie Fijma: X-ray/radio correlation of neutron star X-ray binaries.
Jorinde Kleverlaan: X-ray/radio correlation of neutron star X-ray binaries.

2018
Levi Kok: fast transient X-ray events in the center of the Milky Way.
Bilal Belhach: X-ray observations of accreting neutron stars.
Mick Rustenburg: optical/nIR observations of an accreting white dwarf.