Zobrazeno 1 - 10
of 1 729
pro vyhledávání: '"A Ghirardini"'
Autor:
Li, Pengfei, Liu, Ang, Kluge, Matthias, Comparat, Johan, Tian, Yong, Júlio, Mariana P., Pawlowski, Marcel S., Sanders, Jeremy, Bulbul, Esra, Schwope, Axel, Ghirardini, Vittorio, Zhang, Xiaoyuan, Bahar, Y. Emre, Ramos-Ceja, Miriam E., Balzer, Fabian, Garrel, Christian
Publikováno v:
A&A 692, A253 (2024)
The mass of galaxy clusters is a critical quantity for probing cluster cosmology and testing theories of gravity, but its measurement could be biased given assumptions are inevitable. In this paper, we employ and compare two mass proxies for galaxy c
Externí odkaz:
http://arxiv.org/abs/2411.09735
Autor:
Riva, G., Pratt, G. W., Rossetti, M., Bartalucci, I., Kay, S. T., Rasia, E., Gavazzi, R., Umetsu, K., Arnaud, M., Balboni, M., Bonafede, A., Bourdin, H., De Grandi, S., De Luca, F., Eckert, D., Ettori, S., Gaspari, M., Gastaldello, F., Ghirardini, V., Ghizzardi, S., Gitti, M., Lovisari, L., Maughan, B. J., Mazzotta, P., Molendi, S., Pointecouteau, E., Sayers, J., Sereno, M., Towler, I.
Publikováno v:
A&A 691, A340 (2024)
We characterise the entropy profiles of 32 very high mass ($M_{500}>7.75\times10^{14}~M_{\odot}$) galaxy clusters (HIGHMz), selected from the CHEX-MATE sample, to study the intracluster medium (ICM) entropy distribution in a regime where non-gravitat
Externí odkaz:
http://arxiv.org/abs/2410.11947
Autor:
Artis, E., Bulbul, E., Grandis, S., Ghirardini, V., Clerc, N., Seppi, R., Comparat, J., Cataneo, M., von der Linden, A., Bahar, Y. E., Balzer, F., Chiu, I., Gruen, D., Kleinebreil, F., Kluge, M., Krippendorf, S., Li, X., Liu, A., Malavasi, N., Merloni, A., Miyatake, H., Miyazaki, S., Nandra, K., Okabe, N., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Schrabback, T., Zelmer, S., Zhang, X.
Beyond testing the current cosmological paradigm, cluster number counts can also be utilized to investigate the discrepancies currently affecting current cosmological measurements. In particular, cosmological studies based on cosmic shear and other l
Externí odkaz:
http://arxiv.org/abs/2410.09499
Autor:
Zhang, X., Bulbul, E., Malavasi, N., Ghirardini, V., Comparat, J., Kluge, M., Liu, A., Merloni, A., Zhang, Y., Bahar, Y. E., Artis, E., Sanders, J. S., Garrel, C., Balzer, F., Brüggen, M., Freyberg, M., Gatuzz, E., Grandis, S., Krippendorf, S., Nandra, K., Ponti, G., Ramos-Ceja, M., Predehl, P., Reiprich, T. H., Veronica, A., Yeung, M. C. H., Zelmer, S.
Publikováno v:
A&A 691, A234 (2024)
The properties of the warm-hot intergalactic medium (WHIM) in cosmic filaments are among the least quantified units in modern astrophysics. The Spectrum Roentgen Gamma/eROSITA All Sky Survey ((SRG/eRASS) provides a unique opportunity to study the X-r
Externí odkaz:
http://arxiv.org/abs/2406.00105
Autor:
Liu, A., Bulbul, E., Shin, T., von der Linden, A., Ghirardini, V., Kluge, M., Sanders, J. S., Grandis, S., Zhang, X., Artis, E., Bahar, Y. E., Balzer, F., Clerc, N., Malavasi, N., Merloni, A., Nandra, K., Ramos-Ceja, M. E., Zelmer, S.
Publikováno v:
A&A 688, A186 (2024)
We explore halo assembly bias on cluster scales using large samples of superclusters. Leveraging the largest-ever X-ray galaxy cluster and supercluster samples obtained from the first SRG/eROSITA all-sky survey, we construct two subsamples of galaxy
Externí odkaz:
http://arxiv.org/abs/2404.17345
Autor:
Veronica, Angie, Reiprich, Thomas H., Pacaud, Florian, Sanders, Jeremy S., Gattuzz, Efrain, Yeung, Michael C. H., Bulbul, Esra, Ghirardini, Vittorio, Liu, Ang, Mannes, Caroline, Morelli, Alexander, Ota, Naomi
Methods. We utilized the combined five SRG/eROSITA All-Sky Survey data (eRASS:5) to perform X-ray imaging and spectral analyses of the Centaurus cluster in various directions to large radii. Surface brightness (SB) profiles out to $2R_{200}$ were con
Externí odkaz:
http://arxiv.org/abs/2404.04909
Autor:
Bulbul, E., Zhang, X., Kluge, M., Brueggen, M., Koribalski, B., Liu, A., Artis, E., Bahar, Y. E., Balzer, F., Garrel, C., Ghirardini, V., Malavasi, N., Merloni, A., Nandra, K., Ramos-Ceja, M. E., Sanders, J. S., Zelmer, S.
Odd radio circles (ORCs) are a newly discovered class of extended faint radio sources of unknown origin. We report the first detection of diffuse X-ray gas at the location of a low-redshift ORC (z=0.046) known as Cloverleaf ORC. This observation was
Externí odkaz:
http://arxiv.org/abs/2403.09808
Autor:
Artis, E., Ghirardini, V., Bulbul, E., Grandis, S., Garrel, C., Clerc, N., Seppi, R., Comparat, J., Cataneo, M., Bahar, Y. E., Balzer, F., Chiu, I., Gruen, D., Kleinebreil, F., Kluge, M., Krippendorf, S., Li, X., Liu, A., Merloni, A., Miyatake, H., Miyazaki, S., Nandra, K., Okabe, N., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Schrabback, T., Zelmer, S., Zhang, X.
Publikováno v:
A&A 691, A301 (2024)
The evolution of the cluster mass function traces the growth of the linear density perturbations and can be utilized for constraining the parameters of cosmological and alternative gravity models. In this context, we present new constraints on potent
Externí odkaz:
http://arxiv.org/abs/2402.08459
Autor:
Grandis, S., Ghirardini, V., Bocquet, S., Garrel, C., Mohr, J. J., Liu, A., Kluge, M., Kimmig, L., Reiprich, T. H., Alarcon, A., Amon, A., Artis, E., Bahar, Y. E., Balzer, F., Bechtol, K., Becker, M. R., Bernstein, G., Bulbul, E., Campos, A., Rosell, A. Carnero, Kind, M. Carrasco, Cawthon, R., Chang, C., Chen, R., Chiu, I., Choi, A., Clerc, N., Comparat, J., Cordero, J., Davis, C., Derose, J., Diehl, H. T., Dodelson, S., Doux, C., Drlica-Wagner, A., Eckert, K., Elvin-Poole, J., Everett, S., Ferte, A., Gatt, M., Giannini, G., Giles, P., Gruen, D., Gruendl, R. A., Harrison, I., Hartley, W. G., Herner, K., Huf, E. M., Kleinebreil, F., Kuropatkin, N., Leget, P. F., Maccrann, N., Mccullough, J., Merloni, A., Myles, J., Nandra, K., Navarro-Alsina, A., Okabe, N., Pacaud, F., Pandey, S., Prat, J., Predehl, P., Ramos, M., Raveri, M., Rollins, R. P., Roodman, A., Ross, A. J., Rykoff, E. S., Sanchez, C., Sanders, J., Schrabback, T., Secco, L. F., Seppi, R., Sevilla-Noarbe, I., Sheldon, E., Shin, T., Troxel, M., Tutusaus, I., Varga, T. N., Wu, H., Yanny, B., Yin, B., Zhang, X., Zhang, Y., Alves, O., Bhargava, S., Brooks, D., Burke, D. L., Carretero, J., Costanzi, M., da Costa, L. N., Pereira, M. E. S., De Vicente, J., Desai, S., Doel, P., Ferrero, I., Flaugher, B., Friedel, D., Frieman, J., García-Bellido, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Jeffrey, N., Lahav, O., Lee, S., Marshall, J. L., Menanteau, F., Ogando, R. L. C., Pieres, A., Malagón, A. A. Plazas, Romer, A. K., Sanchez, E., Schubnell, M., Smith, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Weaverdyck, N., Weller, J.
Publikováno v:
A&A 687, A178 (2024)
Number counts of galaxy clusters across redshift are a powerful cosmological probe, if a precise and accurate reconstruction of the underlying mass distribution is performed -- a challenge called mass calibration. With the advent of wide and deep pho
Externí odkaz:
http://arxiv.org/abs/2402.08455
Autor:
Clerc, N., Comparat, J., Seppi, R., Artis, E., Bahar, Y. E., Balzer, F., Bulbul, E., Dauser, T., Garrel, C., Ghirardini, V., Grandis, S., Kirsch, C., Kluge, M., Liu, A., Pacaud, F., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Wilms, J., Zhang, X.
Publikováno v:
A&A 687, A238 (2024)
Characterising galaxy cluster populations from catalog of sources selected in astronomical surveys requires knowledge of sample incompleteness, known as selection function. The first All-Sky Survey (eRASS1) by eROSITA onboard Spectrum Roentgen Gamma
Externí odkaz:
http://arxiv.org/abs/2402.08457