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Resurrecting the fraternal twin WIMP miracle (2022)
Journal Article
Curtin, D., Gryba, S., Setford, J., Hooper, D., & Scholtz, J. (2022). Resurrecting the fraternal twin WIMP miracle. Physical Review D, 105(3), https://doi.org/10.1103/physrevd.105.035033

In twin Higgs models that contain the minimal particle content required to address the little hierarchy problem (i.e., fraternal models), the twin tau has been identified as a promising candidate for dark matter. In this class of scenarios, however,... Read More about Resurrecting the fraternal twin WIMP miracle.

The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE (2020)
Journal Article
Jackson, T. M., Rosario, D., Alexander, D., Scholtz, J., McAlpine, S., & Bower, R. (2020). The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE. Monthly Notices of the Royal Astronomical Society, 498(2), 2323-2338. https://doi.org/10.1093/mnras/staa2414

In this paper we present data from 72 low redshift, hard X-ray selected AGN taken from the Swift-BAT 58 month catalogue. We utilise spectral energy distribution fitting to the optical to IR photometry in order to estimate host galaxy properties. We c... Read More about The Star-Formation Properties of the Observed and Simulated AGN Universe: BAT vs EAGLE.

What if Planet 9 is a Primordial Black Hole? (2020)
Journal Article
Scholtz, J., & Unwin, J. (2020). What if Planet 9 is a Primordial Black Hole?. Physical Review Letters, 125(5), Article 051103. https://doi.org/10.1103/physrevlett.125.051103

We highlight that the anomalous orbits of trans-Neptunian objects (TNOs) and an excess in microlensing events in the 5-year Optical Gravitational Lensing Experiment data set can be simultaneously explained by a new population of astrophysical bodies... Read More about What if Planet 9 is a Primordial Black Hole?.

Delta ACP within the Standard Model and beyond (2019)
Journal Article
Chala, M., Lenz, A., Rusov, A. V., & Scholtz, J. (2019). Delta ACP within the Standard Model and beyond. Journal of High Energy Physics, 2019(7), Article 161. https://doi.org/10.1007/jhep07%282019%29161

In light of the recent LHCb observation of CP violation in the charm sector, we review standard model (SM) predictions in the charm sector and in particular for ∆ACP. We get as an upper bound in the SM |∆ASM CP| ≤ 3.6 × 10−4 , which can be compared t... Read More about Delta ACP within the Standard Model and beyond.

Proper Motions of the Satellites of M31 (2019)
Journal Article
Hodkinson, B., & Scholtz, J. (2019). Proper Motions of the Satellites of M31. Monthly Notices of the Royal Astronomical Society, 488(3), 3231-3237. https://doi.org/10.1093/mnras/stz1893

We predict the range of proper motions of 19 satellite galaxies of M31 that would rotationally stabilize the M31 plane of satellites consisting of 15–20 members as identified by Ibata et al. Our prediction is based purely on the current positions and... Read More about Proper Motions of the Satellites of M31.

Cosmic dance at z ~ 3: Detecting the host galaxies of the dual AGN system LBQS 0302–0019 and Jil with HAWK-I+GRAAL (2018)
Journal Article
Husemann, B., Bielby, R., Jahnke, K., Arrigoni-Battaia, F., Worseck, G., Shanks, T., …Scholtz, J. (2018). Cosmic dance at z ~ 3: Detecting the host galaxies of the dual AGN system LBQS 0302–0019 and Jil with HAWK-I+GRAAL. Astronomy & Astrophysics, 614, Article L2. https://doi.org/10.1051/0004-6361/201833363

We recently discovered that the luminous radio-quiet quasi-stellar objects (QSO) LBQS 0302–0019 at z = 3.286 is likely accompanied by an obscured AGN at 20 kpc projected distance, which we dubbed Jil. It represents the tightest candidate system of an... Read More about Cosmic dance at z ~ 3: Detecting the host galaxies of the dual AGN system LBQS 0302–0019 and Jil with HAWK-I+GRAAL.