Ralf Ballhausen

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Publications (40)

• Spectroscopic modeling of ionic structure in stellar winds of high-mass X-ray binaries
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202660682
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• Chemical enrichment of the Perseus cluster core seen by XRISM/Resolve
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202659603
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• A XRISM/Resolve View of the Dynamics in the Hot Gaseous Atmosphere of M87
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae2c5c
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• Flux variability of the “10 keV feature” of 4U 0115+63
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202555804
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• XMM-Newton Observations of Flares and a Possible Pulse Dropout in the Supergiant X-Ray Binary 4U 1909+07
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae4ed4
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• Multimission Investigation of X-Ray Superorbital Modulation in the Supergiant High-mass X-Ray Binary 4U 1538–52
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae5530
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• A simple relation: Neutron star magnetic field strength and spectral shape at low mass accretion rates
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202558692
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• High-spectral-resolution X-Ray Observations of the Evolved Supermassive Stellar Binary System η Carinae: Fe Kα Band Profile Revealed with XRISM
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae3a80
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• First Look at the High-resolution X-Ray Spectra in the Highly Absorbed High-mass X-Ray Binary IGR J16318−4848 with Chandra
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae5b71
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• Modeling accretion columns in accretion-powered pulsars
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202453643
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