Zobrazeno 1 - 10
of 149
pro vyhledávání: '"McCarthy, I G"'
Autor:
Bigwood, L., Amon, A., Schneider, A., Salcido, J., McCarthy, I. G., Preston, C., Sanchez, D., Sijacki, D., Schaan, E., Ferraro, S., Battaglia, N., Chen, A., Dodelson, S., Roodman, A., Pieres, A., Ferte, A., Alarcon, A., Drlica-Wagner, A., Choi, A., Navarro-Alsina, A., Campos, A., Ross, A. J., Rosell, A. Carnero, Yin, B., Yanny, B., Sanchez, C., Chang, C., Davis, C., Doux, C., Gruen, D., Rykoff, E. S., Huff, E. M., Sheldon, E., Tarsitano, F., Andrade-Oliveira, F., Bernstein, G. M., Giannini, G., Diehl, H. T., Huang, H., Harrison, I., Sevilla-Noarbe, I., Tutusaus, I., Elvin-Poole, J., McCullough, J., Zuntz, J., Blazek, J., DeRose, J., Cordero, J., Prat, J., Myles, J., Eckert, K., Bechtol, K., Herner, K., Secco, L. F., Gatti, M., Raveri, M., Kind, M. Carrasco, Becker, M. R., Troxel, M. A., Jarvis, M., MacCrann, N., Friedrich, O., Alves, O., Leget, P. -F., Chen, R., Rollins, R. P., Wechsler, R. H., Gruendl, R. A., Cawthon, R., Allam, S., Bridle, S. L., Pandey, S., Everett, S., Shin, T., Hartley, W. G., Fang, X., Zhang, Y., Aguena, M., Annis, J., Bacon, D., Bertin, E., Bocquet, S., Brooks, D., Carretero, J., Castander, F. J., da Costa, L. N., Pereira, M. E. S., De Vicente, J., Desai, S., Doel, P., Ferrero, I., Flaugher, B., Frieman, J., Garcia-Bellido, J., Gaztanaga, E., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., Huterer, D., James, D. J., Kuehn, K., Lahav, O., Lee, S., Marshall, J. L., Mena-Fernandez, J., Miquel, R., Muir, J., Paterno, M., Malagon, A. A. Plazas, Porredon, A., Romer, A. K., Samuroff, S., Sanchez, E., Cid, D. Sanchez, Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., To, C., Weaverdyck, N., Weller, J., Wiseman, P., Yamamoto, M.
Extracting precise cosmology from weak lensing surveys requires modelling the non-linear matter power spectrum, which is suppressed at small scales due to baryonic feedback processes. However, hydrodynamical galaxy formation simulations make widely v
Externí odkaz:
http://arxiv.org/abs/2404.06098
Autor:
Eckert, D., Ettori, S., Robertson, A., Massey, R., Pointecouteau, E., Harvey, D., McCarthy, I. G.
Publikováno v:
A&A 666, A41 (2022)
TThe fundamental properties of the postulated dark matter (DM) affect the internal structure of gravitationally-bound structures. In the cold dark matter paradigm, DM particles interact only via gravity. Their distribution is well represented by an E
Externí odkaz:
http://arxiv.org/abs/2205.01123
We evaluate the ability of Convolutional Neural Networks (CNNs) to predict galaxy cluster masses in the BAHAMAS hydrodynamical simulations. We train four separate single-channel networks using: stellar mass, soft X-ray flux, bolometric X-ray flux, an
Externí odkaz:
http://arxiv.org/abs/2005.11819
Publikováno v:
A&A 641, A130 (2020)
On the scale of galactic haloes, the distribution of matter in the cosmos is affected by energetic, non-gravitational processes; so-called baryonic feedback. A lack of knowledge about the details of how feedback processes redistribute matter is a sou
Externí odkaz:
http://arxiv.org/abs/2005.00009
The location of a galaxy cluster's centroid is typically derived from observations of the galactic and/or gas component of the cluster, but these typically deviate from the true centre. This can produce bias when observations are combined to study av
Externí odkaz:
http://arxiv.org/abs/1912.06663
Autor:
Power, C., Elahi, P. J., Welker, C., Knebe, A., Pearce, F. R., Yepes, G., Dave, R., Kay, S. T., McCarthy, I. G., Puchwein, E., Borgani, S., Cunnama, D., Cui, W., Schaye, J.
Galaxy cluster outskirts mark the transition region from the mildly non-linear cosmic web to the highly non-linear, virialised, cluster interior. It is in this transition region that the intra-cluster medium (ICM) begins to influence the properties o
Externí odkaz:
http://arxiv.org/abs/1810.00534
Autor:
Lee, B. E., Brun, A. M. C. Le, Haq, M. E., Deering, N. J., King, L. J., Applegate, D., McCarthy, I. G.
Weak gravitational lensing depends on the integrated mass along the line of sight. Baryons contribute to the mass distribution of galaxy clusters and the resulting mass estimates from lensing analysis. We use the cosmo-OWLS suite of hydrodynamic simu
Externí odkaz:
http://arxiv.org/abs/1805.12186
Autor:
Koulouridis, E., Faccioli, L., Brun, A. M. C. Le, Plionis, M., McCarthy, I. G., Pierre, M., Akylas, A., Georgantopoulos, I., Paltani, S., Lidman, C., Fotopoulou, S., Vignali, C., Pacaud, F., Ranalli, P.
Modern cosmological simulations rely heavily on feedback from active galactic nuclei (AGN) in order to stave off overcooling in massive galaxies and galaxy groups and clusters. An important independent test is whether or not the simulations capture t
Externí odkaz:
http://arxiv.org/abs/1709.01926
Autor:
Bigwood, L, Amon, A, Schneider, A, Salcido, J, McCarthy, I G, Preston, C, Sanchez, D, Sijacki, D, Schaan, E, Ferraro, S, Battaglia, N, Chen, A, Dodelson, S, Roodman, A, Pieres, A, Ferté, A, Alarcon, A, Drlica-Wagner, A, Choi, A, Navarro-Alsina, A
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Oct2024, Vol. 534 Issue 1, p655-682, 28p
The evolution of galaxy cluster counts is a powerful probe of several fundamental cosmological parameters. A number of recent studies using this probe have claimed tension with the cosmology preferred by the analysis of the Planck primary CMB data, i
Externí odkaz:
http://arxiv.org/abs/1602.00611