Outputs (131)

Host Dark Matter Halos of SDSS Red and Blue Quasars: No Significant Difference in Large-scale Environment (2022)
Journal Article
Petter, G. C., Hickox, R. C., Alexander, D. M., Geach, J. E., Myers, A. D., Rosario, D. J., Fawcett, V. A., Klindt, L., & Whalen, K. E. (2022). Host Dark Matter Halos of SDSS Red and Blue Quasars: No Significant Difference in Large-scale Environment. Astrophysical Journal, 927(1), Article 16. https://doi.org/10.3847/1538-4357/ac4d31

The observed optical colors of quasars are generally interpreted in one of two frameworks: unified models that attribute the color to the random orientation of the accretion disk along the line of sight, and evolutionary models that invoke connection... Read More about Host Dark Matter Halos of SDSS Red and Blue Quasars: No Significant Difference in Large-scale Environment.

A LOFAR view into the stormy environment of the galaxy cluster 2A0335+096 (2022)
Journal Article
Ignesti, A., Brunetti, G., Shimwell, T., Gitti, M., Birzan, L., Botteon, A., Brüggen, M., de Gasperin, F., Di Gennaro, G., Edge, A., Riseley, C., Röttgering, H., & van Weeren, R. (2022). A LOFAR view into the stormy environment of the galaxy cluster 2A0335+096. Astronomy & Astrophysics, 659, Article A20. https://doi.org/10.1051/0004-6361/202142549

Context. Radio observations represent a powerful probe of the physics occurring in the intracluster medium (ICM) because they trace the relativistic cosmic rays in the cluster magnetic fields, or within galaxies themselves. By probing the low-energy... Read More about A LOFAR view into the stormy environment of the galaxy cluster 2A0335+096.

The LOFAR Two-metre Sky Survey (2022)
Journal Article
Shimwell, T., Hardcastle, M., Tasse, C., Best, P., Röttgering, H., Williams, W., Botteon, A., Drabent, A., Mechev, A., Shulevski, A., van Weeren, R., Bester, L., Brüggen, M., Brunetti, G., Callingham, J., Chyży, K., Conway, J., Dijkema, T., Duncan, K., de Gasperin, F., …Zheng, J. (2022). The LOFAR Two-metre Sky Survey. Astronomy & Astrophysics, 659, Article A1. https://doi.org/10.1051/0004-6361/202142484

In this data release from the ongoing LOw-Frequency ARray (LOFAR) Two-metre Sky Survey we present 120–168 MHz images covering 27% of the northern sky. Our coverage is split into two regions centred at approximately 12h45m +44◦300 and 1h00m +28◦000 an... Read More about The LOFAR Two-metre Sky Survey.

The strongly irradiated planets in Praesepe (2022)
Journal Article
King, G. W., Wheatley, P. J., Fawcett, V. A., Miller, N. J., Corrales, L. R., & Agüeros, M. A. (2022). The strongly irradiated planets in Praesepe. Monthly Notices of the Royal Astronomical Society, 512(1), 41-55. https://doi.org/10.1093/mnras/stac437

We present an analysis of XMM–Newton observations of four stars in the young (670 Myr) open cluster Praesepe. The planets hosted by these stars all lie close in radius–period space to the radius–period valley and/or the Neptunian desert, two features... Read More about The strongly irradiated planets in Praesepe.

The effects of self-interacting dark matter on the stripping of galaxies that fall into clusters (2022)
Journal Article
Sirks, E. L., Oman, K. A., Robertson, A., Massey, R., & Frenk, C. (2022). The effects of self-interacting dark matter on the stripping of galaxies that fall into clusters. Monthly Notices of the Royal Astronomical Society, 511(4), 5927-5935. https://doi.org/10.1093/mnras/stac406

We use the Cluster-EAGLE (C-EAGLE) hydrodynamical simulations to investigate the effects of self-interacting dark matter (SIDM) on galaxies as they fall into clusters. We find that SIDM galaxies follow similar orbits to their cold dark matter (CDM) c... Read More about The effects of self-interacting dark matter on the stripping of galaxies that fall into clusters.

A multiwavelength-motivated X-ray model for the Circinus Galaxy (2022)
Journal Article
Andonie, C., Ricci, C., Paltani, S., Arévalo, P., Treister, E., Bauer, F., & Stalevski, M. (2022). A multiwavelength-motivated X-ray model for the Circinus Galaxy. Monthly Notices of the Royal Astronomical Society, 511(4), 5768-5781. https://doi.org/10.1093/mnras/stac403

Reprocessed X-ray emission in active galactic nuclei can provide fundamental information about the circumnuclear environments of supermassive black holes. Recent mid-infrared studies have shown evidence of an extended dusty structure perpendicular to... Read More about A multiwavelength-motivated X-ray model for the Circinus Galaxy.

A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2 (2022)
Journal Article
Sathyaprakash, R., Roberts, T., Grisé, F., Kaaret, P., Ambrosi, E., Done, C., Gladstone, J., Kajava, J., Soria, R., & Zampieri, L. (2022). A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2. Monthly Notices of the Royal Astronomical Society, 511(4), 5346-5362. https://doi.org/10.1093/mnras/stac402

NGC 1313 X-2 is one of the few known pulsating ultraluminous X-ray sources (PULXs), and so is thought to contain a neutron star that accretes at highly super-Eddington rates. However, the physics of this accretion remains to be determined. Here, we r... Read More about A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2.

A glint in the eye: Photographic plate archive searches for non-terrestrial artefacts (2022)
Journal Article
Villarroel, B., Mattsson, L., Guergouri, H., Solano, E., Geier, S., Dom, O. N., & Ward, M. J. (2022). A glint in the eye: Photographic plate archive searches for non-terrestrial artefacts. Acta Astronautica, 194, 106-113. https://doi.org/10.1016/j.actaastro.2022.01.039

In this paper, we present a simple strategy to identify Non-Terrestrial artefacts [NTAs; Haqq-Misra and Kopparapu (2012)] in or near geosynchronous Earth orbits (GEOs). We show that even the small pieces of reflective debris in orbit around the Earth... Read More about A glint in the eye: Photographic plate archive searches for non-terrestrial artefacts.

Euclid preparation XVII. Cosmic Dawn Survey: Spitzer Space Telescope observations of the Euclid deep fields and calibration fields (2022)
Journal Article
Moneti, A., McCracken, H., Shuntov, M., Kauffmann, O., Capak, P., Davidzon, I., Ilbert, O., Scarlata, C., Toft, S., Weaver, J., Chary, R., Cuby, J., Faisst, A., Masters, D., McPartland, C., Mobasher, B., Sanders, D., Scaramella, R., Stern, D., Szapudi, I., …Hildebrandt, H. (2022). Euclid preparation XVII. Cosmic Dawn Survey: Spitzer Space Telescope observations of the Euclid deep fields and calibration fields. Astronomy & Astrophysics, 658, Article A126. https://doi.org/10.1051/0004-6361/202142361

We present a new infrared survey covering the three Euclid deep fields and four other Euclid calibration fields using Spitzer Space Telescope’s Infrared Array Camera (IRAC). We combined these new observations with all relevant IRAC archival data of t... Read More about Euclid preparation XVII. Cosmic Dawn Survey: Spitzer Space Telescope observations of the Euclid deep fields and calibration fields.

Weak gravitational lensing shear measurement with FPFS: analytical mitigation of noise bias and selection bias (2022)
Journal Article
Li, X., Li, Y., & Massey, R. (2022). Weak gravitational lensing shear measurement with FPFS: analytical mitigation of noise bias and selection bias. Monthly Notices of the Royal Astronomical Society, 511(4), 4850-4860. https://doi.org/10.1093/mnras/stac342

Dedicated ‘Stage IV’ observatories will soon observe the entire extragalactic sky, to measure the ‘cosmic shear’ distortion of galaxy shapes by weak gravitational lensing. To measure the apparent shapes of those galaxies, we present an improved versi... Read More about Weak gravitational lensing shear measurement with FPFS: analytical mitigation of noise bias and selection bias.

SIBELIUS-DARK: a galaxy catalogue of the local volume from a constrained realization simulation (2022)
Journal Article
McAlpine, S., Helly, J. C., Schaller, M., Sawala, T., Lavaux, G., Jasche, J., Frenk, C. S., Jenkins, A., Lucey, J. R., & Johansson, P. H. (2022). SIBELIUS-DARK: a galaxy catalogue of the local volume from a constrained realization simulation. Monthly Notices of the Royal Astronomical Society, 512(4), 5823-5847. https://doi.org/10.1093/mnras/stac295

We present SIBELIUS-DARK, a constrained realization simulation of the local volume to a distance of 200 Mpc from the Milky Way. SIBELIUS-DARK is the first study of the ‘Simulations Beyond The Local Universe’ (SIBELIUS) project, which has the goal of... Read More about SIBELIUS-DARK: a galaxy catalogue of the local volume from a constrained realization simulation.

The Black Hole–Galaxy Connection: Interplay between Feedback, Obscuration, and Host Galaxy Substructure (2022)
Journal Article
Juneau, S., Goulding, A. D., Banfield, J., Bianchi, S., Duc, P.-A., Ho, I.-T., Dopita, M. A., Scharwächter, J., Bauer, F. E., Groves, B., Alexander, D. M., Davies, R. L., Elbaz, D., Freeland, E., Hampton, E., Kewley, L. J., Nikutta, R., Shastri, P., Shu, X., Vogt, F. P., …Woo, J.-H. (2022). The Black Hole–Galaxy Connection: Interplay between Feedback, Obscuration, and Host Galaxy Substructure. Astrophysical Journal, 925(2), Article 203. https://doi.org/10.3847/1538-4357/ac425f

There is growing evidence for physical influence between supermassive black holes and their host galaxies. We present a case study of the nearby galaxy NGC 7582, for which we find evidence that galactic substructure plays an important role in affecti... Read More about The Black Hole–Galaxy Connection: Interplay between Feedback, Obscuration, and Host Galaxy Substructure.

X-ray intraday variability and power spectral density profiles of the blazar 3C 273 with XMM–Newton during 2000–2021 (2022)
Journal Article
Pavana Gowtami, G., Gaur, H., Gupta, A. C., Wiita, P. J., Liao, M., & Ward, M. (2022). X-ray intraday variability and power spectral density profiles of the blazar 3C 273 with XMM–Newton during 2000–2021. Monthly Notices of the Royal Astronomical Society, 511(2), 3101-3112. https://doi.org/10.1093/mnras/stac286

We present X-ray intraday variability and power spectral density (PSD) analyses of the longest 23 pointed XMM–Newton observations of the blazar 3C 273 that were taken during 2000–2021. These good time intervals contain between 5 and 24.6 h of data. V... Read More about X-ray intraday variability and power spectral density profiles of the blazar 3C 273 with XMM–Newton during 2000–2021.

Systematic Errors Induced by the Elliptical Power-law model in Galaxy–Galaxy Strong Lens Modeling (2022)
Journal Article
Cao, X., Li, R., Nightingale, J., Massey, R., Robertson, A., Frenk, C. S., Amvrosiadis, A., Amorisco, N. C., He, Q., Etherington, A., Cole, S., & Zhu, K. (2022). Systematic Errors Induced by the Elliptical Power-law model in Galaxy–Galaxy Strong Lens Modeling. Research in Astronomy and Astrophysics, 22(2), https://doi.org/10.1088/1674-4527/ac3f2b

The elliptical power-law (EPL) model of the mass in a galaxy is widely used in strong gravitational lensing analyses. However, the distribution of mass in real galaxies is more complex. We quantify the biases due to this model mismatch by simulating... Read More about Systematic Errors Induced by the Elliptical Power-law model in Galaxy–Galaxy Strong Lens Modeling.

Euclid preparation XIII. Forecasts for galaxy morphology with the Euclid Survey using deep generative models (2022)
Journal Article
Bretonnière, H., Huertas-Company, M., Boucaud, A., Lanusse, F., Jullo, E., Merlin, E., Tuccillo, D., Castellano, M., Brinchmann, J., Conselice, C., Dole, H., Cabanac, R., Courtois, H., Castander, F., Duc, P., Fosalba, P., Guinet, D., Kruk, S., Kuchner, U., Serrano, S., …Knapen, J. (2022). Euclid preparation XIII. Forecasts for galaxy morphology with the Euclid Survey using deep generative models. Astronomy & Astrophysics, 657, Article A90. https://doi.org/10.1051/0004-6361/202141393

We present a machine learning framework to simulate realistic galaxies for the Euclid Survey, producing more complex and realistic galaxies than the analytical simulations currently used in Euclid. The proposed method combines a control on galaxy sha... Read More about Euclid preparation XIII. Forecasts for galaxy morphology with the Euclid Survey using deep generative models.

GOODS-ALMA 2.0: Source catalog, number counts, and prevailing compact sizes in 1.1 mm galaxies (2022)
Journal Article
Gómez-Guijarro, C., Elbaz, D., Xiao, M., Béthermin, M., Franco, M., Magnelli, B., Daddi, E., Dickinson, M., Demarco, R., Inami, H., Rujopakarn, W., Magdis, G., Shu, X., Chary, R., Zhou, L., Alexander, D., Bournaud, F., Ciesla, L., Ferguson, H., Finkelstein, S., …Wang, T. (2022). GOODS-ALMA 2.0: Source catalog, number counts, and prevailing compact sizes in 1.1 mm galaxies. Astronomy & Astrophysics, 658, Article A43. https://doi.org/10.1051/0004-6361/202141615

Submillimeter/millimeter observations of dusty star-forming galaxies with the Atacama Large Millimeter/submillimeter Array (ALMA) have shown that dust continuum emission generally occurs in compact regions smaller than the stellar distribution. Howev... Read More about GOODS-ALMA 2.0: Source catalog, number counts, and prevailing compact sizes in 1.1 mm galaxies.

A forward-modelling method to infer the dark matter particle mass from strong gravitational lenses (2022)
Journal Article
He, Q., Robertson, A., Nightingale, J., Cole, S., Frenk, C. S., Massey, R., Amvrosiadis, A., Li, R., Cao, X., & Etherington, A. (2022). A forward-modelling method to infer the dark matter particle mass from strong gravitational lenses. Monthly Notices of the Royal Astronomical Society, 511(2), 3046-3062. https://doi.org/10.1093/mnras/stac191

A fundamental prediction of the cold dark matter (CDM) model of structure formation is the existence of a vast population of dark matter haloes extending to subsolar masses. By contrast, other dark matter models, such as a warm thermal relic (WDM), p... Read More about A forward-modelling method to infer the dark matter particle mass from strong gravitational lenses.

Quasar feedback survey: multiphase outflows, turbulence, and evidence for feedback caused by low power radio jets inclined into the galaxy disc (2022)
Journal Article
Girdhar, A., Harrison, C., Mainieri, V., Bittner, A., Costa, T., Kharb, P., Mukherjee, D., Arrigoni Battaia, F., Alexander, D., Calistro Rivera, G., Circosta, C., De Breuck, C., Edge, A., Farina, E., Kakkad, D., Lansbury, G., Molyneux, S., Mullaney, J., S, S., Thomson, A., & Ward, S. (2022). Quasar feedback survey: multiphase outflows, turbulence, and evidence for feedback caused by low power radio jets inclined into the galaxy disc. Monthly Notices of the Royal Astronomical Society, 512(2), 1608-1628. https://doi.org/10.1093/mnras/stac073

We present a study of a luminous, z = 0.15, type-2 quasar (L[OIII] = 1042.8 erg s−1) from the Quasar Feedback Survey. It is classified as ‘radio-quiet’ (L1.4 GHz = 1023.8 W Hz−1); however, radio imaging reveals ∼ 1 kpc low-power radio jets (Pjet = 10... Read More about Quasar feedback survey: multiphase outflows, turbulence, and evidence for feedback caused by low power radio jets inclined into the galaxy disc.

Deep sub-arcsecond wide-field imaging of the Lockman Hole field at 144 MHz (2022)
Journal Article
Sweijen, F., van Weeren, R., Röttgering, H., Morabito, L., Jackson, N., Offringa, A., van der Tol, S., Veenboer, B., Oonk, J., Best, P., Bondi, M., Shimwell, T., Tasse, C., & Thomson, A. (2022). Deep sub-arcsecond wide-field imaging of the Lockman Hole field at 144 MHz. Nature Astronomy, 6(3), 350-356. https://doi.org/10.1038/s41550-021-01573-z

Recent observations of the radio sky show that the vast majority of sources detected at 144 MHz are unresolved at the typical resolution of a few arcseconds1, demonstrating the need for sub-arcsecond-resolution surveys to make detailed studies. At lo... Read More about Deep sub-arcsecond wide-field imaging of the Lockman Hole field at 144 MHz.

Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids (2022)
Journal Article
Hamaus, N., Aubert, M., Pisani, A., Contarini, S., Verza, G., Cousinou, M. .-C., Escoffier, S., Hawken, A., Lavaux, G., Pollina, G., Wandelt, B., Weller, J., Bonici, M., Carbone, C., Guzzo, L., Kovacs, A., Marulli, F., Massara, E., Moscardini, L., Ntelis, P., …Romelli, E. (2022). Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids. Astronomy & Astrophysics, 658, Article A20. https://doi.org/10.1051/0004-6361/202142073

Euclid is poised to survey galaxies across a cosmological volume of unprecedented size, providing observations of more than a billion objects distributed over a third of the full sky. Approximately 20 million of these galaxies will have their spectro... Read More about Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids.