Outputs (12688)

IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection (2022)
Journal Article
Atkinson, O., Bhardwaj, A., Englert, C., Konar, P., Ngairangbam, V. S., & Spannowsky, M. (2022). IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection. Frontiers in Artificial Intelligence, 5, Article 943135. https://doi.org/10.3389/frai.2022.943135

Anomaly detection through employing machine learning techniques has emerged as a novel powerful tool in the search for new physics beyond the Standard Model. Historically similar to the development of jet observables, theoretical consistency has not... Read More about IRC-Safe Graph Autoencoder for Unsupervised Anomaly Detection.

The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey (2022)
Journal Article
Grove, C., Chuang, C.-H., Devi, N. C., Garrison, L., L’Huillier, B., Feng, Y., Helly, J., Hernández-Aguayo, C., Alam, S., Zhang, H., Yu, Y., Cole, S., Eisenstein, D., Norberg, P., Wechsler, R., Brooks, D., Dawson, K., Landriau, M., Meisner, A., Poppett, C., …Valenzuela, O. (2022). The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey. Monthly Notices of the Royal Astronomical Society, 515(2), https://doi.org/10.1093/mnras/stac1947

Analysis of large galaxy surveys requires confidence in the robustness of numerical simulation methods. The simulations are used to construct mock galaxy catalogues to validate data analysis pipelines and identify potential systematics. We compare th... Read More about The DESI N-body simulation project – I. Testing the robustness of simulations for the DESI dark time survey.

A transient ultraluminous X-ray source in NGC 55 (2022)
Journal Article
Robba, A., Pinto, C., Pintore, F., Rodriguez, G., Ambrosi, E., Barra, F., Cusumano, G., D’Aì, A., Del Santo, M., Kosec, P., Marino, A., Middleton, M., Roberts, T., Salvaggio, C., Soria, R., Wolter, A., & Walton, D. (2022). A transient ultraluminous X-ray source in NGC 55. Monthly Notices of the Royal Astronomical Society, 515(4), 4669-4674. https://doi.org/10.1093/mnras/stac2018

Ultraluminous X-ray sources (ULXs) are a class of accreting compact objects with X-ray luminosities above 1039 erg s−1. The average number of ULXs per galaxy is still not well constrained, especially given the uncertainty on the fraction of ULX trans... Read More about A transient ultraluminous X-ray source in NGC 55.

Spherical accretion of collisional gas in modified gravity I: self-similar solutions and a new cosmological hydrodynamical code (2022)
Journal Article
Zhang, H., Weinzierl, T., Schulz, H., & Li, B. (2022). Spherical accretion of collisional gas in modified gravity I: self-similar solutions and a new cosmological hydrodynamical code. Monthly Notices of the Royal Astronomical Society, 515(2), 2464-2482. https://doi.org/10.1093/mnras/stac1991

The spherical collapse scenario has great importance in cosmology since it captures several crucial aspects of structure formation. The presence of self-similar solutions in the Einstein-de Sitter (EdS) model greatly simplifies its analysis, making i... Read More about Spherical accretion of collisional gas in modified gravity I: self-similar solutions and a new cosmological hydrodynamical code.

Spontaneous phase separation of ternary fluid mixtures (2022)
Journal Article
Shek, A. C., & Kusumaatmaja, H. (2022). Spontaneous phase separation of ternary fluid mixtures. Soft Matter, 18(31), 5807-5814. https://doi.org/10.1039/d2sm00413e

We computationally study the spontaneous phase separation of ternary fluid mixtures using the lattice Boltzmann method both when all the surface tensions are equal and when they have different values. To rationalise the phase diagram of possible phas... Read More about Spontaneous phase separation of ternary fluid mixtures.

Fornax3D project: Assembly history of massive early-type galaxies in the Fornax cluster from deep imaging and integral field spectroscopy (2022)
Journal Article
Spavone, M., Iodice, E., D’Ago, G., van de Ven, G., Morelli, L., Corsini, E., Sarzi, M., Coccato, L., Fahrion, K., Falcón-Barroso, J., Gadotti, D., Lyubenova, M., Martín-Navarro, I., McDermid, R., Pinna, F., Pizzella, A., Poci, A., de Zeeuw, P., & Zhu, L. (2022). Fornax3D project: Assembly history of massive early-type galaxies in the Fornax cluster from deep imaging and integral field spectroscopy. Astronomy & Astrophysics, 663, Article A135. https://doi.org/10.1051/0004-6361/202243290

This work is based on high-quality integral-field spectroscopic data obtained with the Multi Unit Spectroscopic Explorer (MUSE) on the Very Large Telescope (VLT). The 21 brightest (mB ≤ 15 mag) early-type galaxies (ETGs) inside the virial radius of t... Read More about Fornax3D project: Assembly history of massive early-type galaxies in the Fornax cluster from deep imaging and integral field spectroscopy.

Soliton Interferometry with Very Narrow Barriers Obtained from Spatially Dependent Dressed States (2022)
Journal Article
Grimshaw, C. L., Billam, T. P., & Gardiner, S. A. (2022). Soliton Interferometry with Very Narrow Barriers Obtained from Spatially Dependent Dressed States. Physical Review Letters, 129(4), Article 040401. https://doi.org/10.1103/physrevlett.129.040401

Bright solitons in atomic Bose-Einstein condensates are strong candidates for high precision matter-wave interferometry, as their inherent stability against dispersion supports long interrogation times. An analog to a beam splitter is then a narrow p... Read More about Soliton Interferometry with Very Narrow Barriers Obtained from Spatially Dependent Dressed States.

Electric field and strain-induced band-gap engineering and manipulation of the Rashba spin splitting in Janus van der Waals heterostructures (2022)
Journal Article
Patel, S., Dey, U., Adhikari, N. P., & Taraphder, A. (2022). Electric field and strain-induced band-gap engineering and manipulation of the Rashba spin splitting in Janus van der Waals heterostructures. Physical Review B, 106(3), Article 035125. https://doi.org/10.1103/physrevb.106.035125

The compositional as well as structural asymmetries in Janus transition metal dichalcogenides (J-TMDs) and their van der Waals heterostructures (vdW HSs) induce an intrinsic Rashba spin splitting. We investigate the variation of band gaps and the Ras... Read More about Electric field and strain-induced band-gap engineering and manipulation of the Rashba spin splitting in Janus van der Waals heterostructures.

Structural Parameters and Possible Association of the Ultra-faint Dwarfs Pegasus III and Pisces II from Deep Hubble Space Telescope Photometry (2022)
Journal Article
Richstein, H., Patel, E., Kallivayalil, N., Simon, J. D., Zivick, P., Tollerud, E., Fritz, T., Warfield, J. T., Besla, G., van der Marel, R. P., Wetzel, A., Choi, Y., Deason, A., Geha, M., Guhathakurta, P., Jeon, M., Kirby, E. N., Libralato, M., Sacchi, E., & Sohn, S. T. (2022). Structural Parameters and Possible Association of the Ultra-faint Dwarfs Pegasus III and Pisces II from Deep Hubble Space Telescope Photometry. Astrophysical Journal, 933(2), Article 217. https://doi.org/10.3847/1538-4357/ac7226

We present deep Hubble Space Telescope (HST) photometry of the ultra-faint dwarf (UFD) galaxies Pegasus III (Peg III) and Pisces II (Psc II), two of the most distant satellites in the halo of the Milky Way (MW). We measure the structure of both galax... Read More about Structural Parameters and Possible Association of the Ultra-faint Dwarfs Pegasus III and Pisces II from Deep Hubble Space Telescope Photometry.

Vector boson pair production at one loop: analytic results for the process $$ \mathrm{q}\overline{\mathrm{q}}\ell \overline{\ell}{\ell}^{\prime }{\overline{\ell}}^{\prime}\mathrm{g} $$ (2022)
Journal Article
Campbell, J. M., De Laurentis, G., & Ellis, R. K. (2022). Vector boson pair production at one loop: analytic results for the process $$ \mathrm{q}\overline{\mathrm{q}}\ell \overline{\ell}{\ell}^{\prime }{\overline{\ell}}^{\prime}\mathrm{g} $$. Journal of High Energy Physics, 2022(7), Article 96. https://doi.org/10.1007/jhep07%282022%29096

We present compact analytic results for the one-loop amplitude for the process 0 → qq¯¯ℓℓ¯ℓ′ℓ¯′g, relevant for both the production of a pair of Z and W-bosons in association with a jet. We focus on the gauge-invariant contribution mediated by a loop... Read More about Vector boson pair production at one loop: analytic results for the process $$ \mathrm{q}\overline{\mathrm{q}}\ell \overline{\ell}{\ell}^{\prime }{\overline{\ell}}^{\prime}\mathrm{g} $$.