Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications (2024)
Journal Article
Schaller, M., Borrow, J., Draper, P. W., Ivkovic, M., McAlpine, S., Vandenbroucke, B., …Xiang, Z. (2024). Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stae922

Numerical simulations have become one of the key tools used by theorists in all the fields of astrophysics and cosmology. The development of modern tools that target the largest existing computing systems and exploit state-of-the-art numerical method... Read More about Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications.

The DESI One-percent Survey: Evidence for Assembly Bias from Low-redshift Counts-in-cylinders Measurements (2024)
Journal Article
Pearl, A. N., Zentner, A. R., Newman, J. A., Bezanson, R., Wang, K., Moustakas, J., …Zhou, Z. (2024). The DESI One-percent Survey: Evidence for Assembly Bias from Low-redshift Counts-in-cylinders Measurements. Astrophysical Journal, 963(2), Article 116. https://doi.org/10.3847/1538-4357/ad1ffd

We explore the galaxy-halo connection information that is available in low-redshift samples from the early data release of the Dark Energy Spectroscopic Instrument (DESI). We model the halo occupation distribution (HOD) from z = 0.1 to 0.3 using Surv... Read More about The DESI One-percent Survey: Evidence for Assembly Bias from Low-redshift Counts-in-cylinders Measurements.

fkPT: constraining scale-dependent modified gravity with the full-shape galaxy power spectrum (2024)
Journal Article
Rodriguez-Meza, M. A., Aviles, A., Noriega, H. E., Ruan, C., Li, B., Vargas-Magaña, M., & Cervantes-Cota, J. L. (2024). fkPT: constraining scale-dependent modified gravity with the full-shape galaxy power spectrum. Journal of Cosmology and Astroparticle Physics, 2024(03), Article 049. https://doi.org/10.1088/1475-7516/2024/03/049

Modified gravity models with scale-dependent linear growth typically exhibit an enhancement in the power spectrum beyond a certain scale. The conventional methods for extracting cosmological information usually involve inferring modified gravity effe... Read More about fkPT: constraining scale-dependent modified gravity with the full-shape galaxy power spectrum.

PROVABGS: The Probabilistic Stellar Mass Function of the BGS One-percent Survey (2024)
Journal Article
Hahn, C., Aguilar, J. N., Alam, S., Ahlen, S., Brooks, D., Cole, S., …Zou, H. (2024). PROVABGS: The Probabilistic Stellar Mass Function of the BGS One-percent Survey. Astrophysical Journal, 963(1), Article 56. https://doi.org/10.3847/1538-4357/ad19c8

We present the probabilistic stellar mass function (pSMF) of galaxies in the DESI Bright Galaxy Survey (BGS), observed during the One-percent Survey. The One-percent Survey was one of DESI’s survey validation programs conducted from 2021 April to May... Read More about PROVABGS: The Probabilistic Stellar Mass Function of the BGS One-percent Survey.

The DESI One-Percent Survey: A Concise Model for the Galactic Conformity of Emission-line Galaxies (2024)
Journal Article
Gao, H., Jing, Y. P., Xu, K., Zhao, D., Gui, S., Zheng, Y., …Zhou, Z. (2024). The DESI One-Percent Survey: A Concise Model for the Galactic Conformity of Emission-line Galaxies. Astrophysical Journal, 961(1), Article 74. https://doi.org/10.3847/1538-4357/ad09d6

Galactic conformity is the phenomenon whereby a galaxy of a certain physical property is correlated with its neighbors of the same property, implying a possible causal relationship. The observed auto correlations of emission-line galaxies (ELGs) from... Read More about The DESI One-Percent Survey: A Concise Model for the Galactic Conformity of Emission-line Galaxies.

A mixed-method approach to determining contact matrices in the Cox’s Bazar refugee settlement (2023)
Journal Article
Walker, J., Aylett-Bullock, J., Shi, D., Kahindo Maina, A. G., Samir Evers, E., Harlass, S., & Krauss, F. (2023). A mixed-method approach to determining contact matrices in the Cox’s Bazar refugee settlement. Royal Society Open Science, 10(12), Article 231066. https://doi.org/10.1098/rsos.231066

Contact matrices are an important ingredient in age-structured epidemic models to inform the simulated spread of the disease between subgroups of the population. These matrices are generally derived using resource-intensive diary-based surveys and fe... Read More about A mixed-method approach to determining contact matrices in the Cox’s Bazar refugee settlement.

Hubble Constant Measurement from Three Large-separation Quasars Strongly Lensed by Galaxy Clusters (2023)
Journal Article
Napier, K., Sharon, K., Dahle, H., Bayliss, M., Gladders, M. D., Mahler, G., …Florian, M. (2023). Hubble Constant Measurement from Three Large-separation Quasars Strongly Lensed by Galaxy Clusters. Astrophysical Journal, 959(2), Article 134. https://doi.org/10.3847/1538-4357/ad045a

Tension between cosmic microwave background–based and distance ladder–based determinations of the Hubble constant H 0 motivates the pursuit of independent methods that are not subject to the same systematic effects. A promising alternative, proposed... Read More about Hubble Constant Measurement from Three Large-separation Quasars Strongly Lensed by Galaxy Clusters.

GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI (2023)
Journal Article
Allende Prieto, C., Aguado, D. S., González Hernández, J. I., Rebolo, R., Najita, J., Manser, C. J., …Zou, H. (2023). GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI. Astrophysical Journal, 957(2), Article 76. https://doi.org/10.3847/1538-4357/acfa96

The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ∼10, improving the sample statistics to study the early chemical evolution of the Milky W... Read More about GTC Follow-up Observations of Very Metal-poor Star Candidates from DESI.

Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope (2023)
Journal Article
Venkattu, D., Lundqvist, P., Torres, M. P., Morabito, L., Moldón, J., Conway, J., …Tasse, C. (2023). Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope. Astrophysical Journal, 953(2), Article 157. https://doi.org/10.3847/1538-4357/ace2c1

We present an International LOFAR Telescope (ILT) subarcsecond-resolution image of the nearby galaxy M51 with a beam size of 0farcs436 × 0farcs366 and rms of 46 μJy. We compare this image with a European VLBI Network study of M51 and discuss the supe... Read More about Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope.

Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for disrupted dwarf galaxy searches (2023)
Journal Article
Orkney, M. D. A., Laporte, C. F. P., Grand, R. J. J., Gómez, F. A., van de Voort, F., Fattahi, A., …Springel, V. (2023). Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for disrupted dwarf galaxy searches. Monthly Notices of the Royal Astronomical Society, 525(1), 683-705. https://doi.org/10.1093/mnras/stad2361

A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey (2023)
Journal Article
Gordon, Y. A., Rudnick, L., Andernach, H., Morabito, L. K., O’Dea, C. P., Achong, K., …Vantyghem, A. N. (2023). A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey. Astrophysical Journal Supplement, 267(2), Article 37. https://doi.org/10.3847/1538-4365/acda30

Active galactic nuclei (AGNs) can often be identified in radio images as two lobes, sometimes connected to a core by a radio jet. This multicomponent morphology unfortunately creates difficulties for source finders, leading to components that are (a)... Read More about A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey.

VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope (2023)
Journal Article
Cordun, C. M., Timmerman, R., Miley, G. K., van Weeren, R. J., Sweijen, F., Morabito, L. K., & Röttgering, H. J. A. (2023). VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope. Astronomy & Astrophysics, 676, Article A29. https://doi.org/10.1051/0004-6361/202346320

It is generally known that luminous, ultra-steep spectrum radio sources are preferentially associated with massive galaxies at high redshifts. In this paper, we describe a pilot project directed at such objects to demonstrate the feasibility and impo... Read More about VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope.

The MillenniumTNG Project: Intrinsic alignments of galaxies and halos (2023)
Journal Article
Delgado, A. M., Hadzhiyska, B., Bose, S., Springel, V., Hernquist, L., Barrera, M., …Frenk, C. (2023). The MillenniumTNG Project: Intrinsic alignments of galaxies and halos. Monthly Notices of the Royal Astronomical Society, 523(4), 5899–5914. https://doi.org/10.1093/mnras/stad1781

The intrinsic alignment (IA) of observed galaxy shapes with the underlying cosmic web is a source of contamination in weak lensing surveys. Sensitive methods to identify the IA signal will therefore need to be included in the upcoming weak lensing an... Read More about The MillenniumTNG Project: Intrinsic alignments of galaxies and halos.

Cosmic evolution of radio-AGN feedback: confronting models with data (2023)
Journal Article
Kondapally, R., Best, P. N., Raouf, M., Thomas, N. L., Davé, R., Shabala, S. S., …Smith, D. J. B. (2023). Cosmic evolution of radio-AGN feedback: confronting models with data. Monthly Notices of the Royal Astronomical Society, 523(4), 5292-5305. https://doi.org/10.1093/mnras/stad1813

The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements (2023)
Journal Article
Kelly, P. L., Rodney, S., Treu, T., Birrer, S., Bonvin, V., Dessart, L., …Wambsganss, J. (2023). The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements. Astrophysical Journal, 948(2), Article 93. https://doi.org/10.3847/1538-4357/ac4ccb

In late 2014, four images of supernova (SN) "Refsdal," the first known example of a strongly lensed SN with multiple resolved images, were detected in the MACS J1149 galaxy-cluster field. Following the images' discovery, the SN was predicted to reapp... Read More about The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements.

Upscaling ExaHyPE – on each and every core (2023)
Report
Li, B., Schulz, H., Tuft, A., Weinzierl, T., & Zhang, H. (2023). Upscaling ExaHyPE – on each and every core. ARCHER2

We study a MPI+multithreaded PDE solver for hyperbolic partial differential equations. Each thread per rank handles a subdomain of the computational domain identified by a segment of a space-filling curve. The threads spawn additional tasks which sho... Read More about Upscaling ExaHyPE – on each and every core.

The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties (2023)
Journal Article
Best, P., Kondapally, R., Williams, W., Cochrane, R., Duncan, K., Hale, C., …van Weeren, R. (2023). The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties. Monthly Notices of the Royal Astronomical Society, 523(2), 1729–1755. https://doi.org/10.1093/mnras/stad1308

Source classifications, stellar masses and star formation rates are presented for ≈80,000 radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey (LoTSS) Deep Fields, which represents the widest deep radio survey eve... Read More about The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties.

The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways (2023)
Journal Article
Bose, S., & Deason, A. J. (2023). The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways. Monthly Notices of the Royal Astronomical Society, 522(4), 5013-5021. https://doi.org/10.1093/mnras/stad1123

The stellar halo of the Milky Way records the history of its interactions with dwarf galaxies, whose subsequent destruction results in the formation of an extended stellar component. Recent works have suggested that galaxies with masses comparable to... Read More about The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways.

Galaxy clustering from the bottom up: A Streaming Model emulator I (2023)
Journal Article
Cuesta-Lazaro, C., Nishimichi, T., Kobayashi, Y., Ruan, C., Eggemeier, A., Miyatake, H., …Li, B. (2023). Galaxy clustering from the bottom up: A Streaming Model emulator I. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stad1207

In this series of papers, we present a simulation-based model for the non-linear clustering of galaxies based on separate modelling of clustering in real space and velocity statistics. In the first paper, we present an emulator for the real-space cor... Read More about Galaxy clustering from the bottom up: A Streaming Model emulator I.

RXJ0437+00: constraining dark matter with exotic gravitational lenses (2023)
Journal Article
Lagattuta, D. J., Richard, J., Ebeling, H., Basto, Q., Cerny, C., Edge, A., …Massey, R. (2023). RXJ0437+00: constraining dark matter with exotic gravitational lenses. Monthly Notices of the Royal Astronomical Society, 522(1), 1091-1107. https://doi.org/10.1093/mnras/stad803

We present the first strong-gravitational-lensing analysis of the galaxy cluster RX J0437.1+0043 (RXJ0437; z = 0.285). Newly obtained, deep MUSE observations, Keck/MOSFIRE near-infrared spectroscopy, and Hubble Space Telescope SNAPshot imaging reveal... Read More about RXJ0437+00: constraining dark matter with exotic gravitational lenses.