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A deep X-ray view of the bare AGN Ark 120 - VI. Geometry of the hot corona from spectroscopic and polarization signatures (2019)
Journal Article
(2019). A deep X-ray view of the bare AGN Ark 120 - VI. Geometry of the hot corona from spectroscopic and polarization signatures. Astronomy and Astrophysics, A12 -A12. https://doi.org/10.1051/0004-6361/201834454

Context. The spectral shape of the hard X-ray continuum of Active Galactic Nuclei (AGN) can be ascribed to inverse Compton scattering of optical/UV seed photons from the accretion disc by a hot corona of electrons. This physical process produces a po... Read More about A deep X-ray view of the bare AGN Ark 120 - VI. Geometry of the hot corona from spectroscopic and polarization signatures.

A deep X-ray view of the bare AGN Ark 120 - V. Spin determination from disc-Comptonisation efficiency method (2019)
Journal Article
(2019). A deep X-ray view of the bare AGN Ark 120 - V. Spin determination from disc-Comptonisation efficiency method. Astronomy and Astrophysics, A11 - A11. https://doi.org/10.1051/0004-6361/201834448

Context The spin of supermassive black holes (SMBH) in active galactic nuclei (AGN) can be determined from spectral signature(s) of relativistic reflection such as the X-ray iron Ka line profile, but this can be rather uncertain when the line of sig... Read More about A deep X-ray view of the bare AGN Ark 120 - V. Spin determination from disc-Comptonisation efficiency method.

The Search for “Fred”: An Unusual Vertical Burial Case (2019)
Journal Article
D. Wisniewski, K., Cooper, N., Heaton, V., Hope, C., Pirrie, D., J. Mitten, A., & Pringle, J. K. (2019). The Search for “Fred”: An Unusual Vertical Burial Case. Journal of Forensic Sciences, 64(5), 1530-1539. https://doi.org/10.1111/1556-4029.14035

This case reports details of a multi-phased, geophysical survey to assist in a cold case search. The Police Service received witness intelligence that had stated an adult male “Fred” had been lured to an isolated area, killed and then buried vertical... Read More about The Search for “Fred”: An Unusual Vertical Burial Case.

Constraining transport of angular momentum in stars Combining asteroseismic observations of core helium burning stars and white dwarfs (2019)
Journal Article
den Hartogh, J., Eggenberger, P., & Hirschi, R. (2019). Constraining transport of angular momentum in stars Combining asteroseismic observations of core helium burning stars and white dwarfs. Astronomy & Astrophysics, 622, 1-10. https://doi.org/10.1051/0004-6361/201834330

Context Transport of angular momentum has been a challenging topic within the stellar evolution community, even more since the recent asteroseismic surveys. All published studies on rotation using asteroseismic observations show a discrepancy betwee... Read More about Constraining transport of angular momentum in stars Combining asteroseismic observations of core helium burning stars and white dwarfs.

Testing Systematics of Gaia DR2 Parallaxes with Empirical Surface Brightness: Color Relations Applied to Eclipsing Binaries (2019)
Journal Article
Maxted. (2019). Testing Systematics of Gaia DR2 Parallaxes with Empirical Surface Brightness: Color Relations Applied to Eclipsing Binaries. Astrophysical Journal, https://doi.org/10.3847/1538-4357/aafbed

Using a sample of 81 galactic, detached eclipsing binary stars we investigated the global zero-point shift of their parallaxes with the Gaia Data Release 2 (DR2) parallaxes. The stars in the sample lay in a distance range of 0.04–2 kpc from the Sun.... Read More about Testing Systematics of Gaia DR2 Parallaxes with Empirical Surface Brightness: Color Relations Applied to Eclipsing Binaries.

Spitzer Microlensing Parallax for OGLE-2017-BLG-0896 Reveals a Counter-rotating Low-mass Brown Dwarf (2019)
Journal Article
Shvartzvald, Y., Yee, J. C., Skowron, J., Lee, C., Udalski, A., Calchi Novati, S., …Southworth, J. (2019). Spitzer Microlensing Parallax for OGLE-2017-BLG-0896 Reveals a Counter-rotating Low-mass Brown Dwarf. Astronomical Journal, 157(3), Article 106. https://doi.org/10.3847/1538-3881/aafe12

The kinematics of isolated brown dwarfs in the Galaxy, beyond the solar neighborhood, is virtually unknown. Microlensing has the potential to probe this hidden population, as it can measure both the mass and five of the six phase-space coordinates (a... Read More about Spitzer Microlensing Parallax for OGLE-2017-BLG-0896 Reveals a Counter-rotating Low-mass Brown Dwarf.

Nucleosynthetic yields from neutron stars accreting in binary common envelopes (2019)
Journal Article
Keegans, J., Fryer, C. L., Jones, S. W., Côté, B., Belczynski, K., Herwig, F., …Diget, C. A. (2019). Nucleosynthetic yields from neutron stars accreting in binary common envelopes. Monthly Notices of the Royal Astronomical Society, 485(1), 620-639. https://doi.org/10.1093/mnras/stz368

Massive-star binaries can undergo a phase where one of the two stars expands during its advanced evolutionary stage as a giant and envelops its companion, ejecting the hydrogen envelope and tightening its orbit. Such a common envelope phase is requir... Read More about Nucleosynthetic yields from neutron stars accreting in binary common envelopes.

ZnSe Nanorods as Visible‐Light Absorbers for Photocatalytic and Photoelectrochemical H 2 Evolution in Water (2019)
Journal Article
Kuehnel, M. F., Creissen, C. E., Sahm, C. D., Wielend, D., Schlosser, A., Orchard, K. L., & Reisner, E. (2019). ZnSe Nanorods as Visible‐Light Absorbers for Photocatalytic and Photoelectrochemical H 2 Evolution in Water. Angewandte Chemie International Edition, 58(15), 5059-5063. https://doi.org/10.1002/anie.201814265

A precious-metal- and Cd-free photocatalyst system for efficient H2 evolution from aqueous protons with a performance comparable to Cd-based quantum dots is presented. Rod-shaped ZnSe nanocrystals (nanorods, NRs) with a Ni(BF4)2 co-catalyst suspended... Read More about ZnSe Nanorods as Visible‐Light Absorbers for Photocatalytic and Photoelectrochemical H 2 Evolution in Water.

Dependence of convective boundary mixing on boundary properties and turbulence strength (2019)
Journal Article
Cristini, A., Hirschi, R., Meakin, C., Arnett, D., Georgy, C., & Walkington, I. (2019). Dependence of convective boundary mixing on boundary properties and turbulence strength. Monthly Notices of the Royal Astronomical Society, 484(4), 4645 - 4664. https://doi.org/10.1093/mnras/stz312

Convective boundary mixing is one of the major uncertainties in stellar evolution. In order to study its dependence on boundary properties and turbulence strength in a controlled way, we computed a series of 3D hydrodynamical simulations of stellar c... Read More about Dependence of convective boundary mixing on boundary properties and turbulence strength.