Zobrazeno 1 - 10
of 508
pro vyhledávání: '"Bahar Y"'
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.
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:
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.
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
Autor:
Ghirardini, V., Bulbul, E., Artis, E., Clerc, N., Garrel, C., Grandis, S., Kluge, M., Liu, A., Bahar, Y. E., Balzer, F., Chiu, I., Comparat, J., Gruen, D., Kleinebreil, F., Krippendorf, S., Merloni, A., Nandra, K., Okabe, N., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Schrabback, T., Seppi, R., Zelmer, S., Zhang, X., Bornemann, W., Brunner, H., Burwitz, V., Coutinho, D., Dennerl, K., Freyberg, M., Friedrich, S., Gaida, R., Gueguen, A., Haberl, F., Kink, W., Lamer, G., Li, X., Liu, T., Maitra, C., Meidinger, N., Mueller, S., Miyatake, H., Miyazaki, S., Robrade, J., Schwope, A., Stewart, I.
Publikováno v:
A&A 689, A298 (2024)
The cluster mass function traces the growth of linear density perturbations and provides valuable insights into the growth of structures, the nature of dark matter, and the cosmological parameters governing the Universe. The primary science goal of e
Externí odkaz:
http://arxiv.org/abs/2402.08458
Autor:
Seppi, R., Comparat, J., Ghirardini, V., Garrel, C., Artis, E., Sanchez, A. G., Liu, A., Clerc, N., Bulbul, E., Grandis, S., Kluge, M., Reiprich, T. H., Merloni, A., Zhang, X., Bahar, Y. E., Shreeram, S., Sanders, J., Ramos-Ceja, M., Krumpe, M.
Publikováno v:
A&A 686, A196 (2024)
The spatial distribution of galaxy clusters provides a reliable tracer of the large-scale distribution of matter in the Universe. The clustering signal depends on intrinsic cluster properties and cosmological parameters. The ability of eROSITA onboar
Externí odkaz:
http://arxiv.org/abs/2402.08460
Autor:
Liu, A., Bulbul, E., Kluge, M., Ghirardini, V., Zhang, X., Sanders, J. S., Artis, E., Bahar, Y. E., Balzer, F., Brueggen, M., Clerc, N., Comparat, J., Garrel, C., Gatuzz, E., Grandis, S., Lamer, G., Merloni, A., Migkas, K., Nandra, K., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Seppi, R., Zelmer, S.
Superclusters of galaxies mark the large-scale overdense regions in the Universe. Superclusters provide an ideal environment to study structure formation and to search for the emission of the intergalactic medium such as cosmic filaments and WHIM. In
Externí odkaz:
http://arxiv.org/abs/2402.08454
Autor:
Kluge, M., Comparat, J., Liu, A., Balzer, F., Bulbul, E., Chitham, J. Ider, Ghirardini, V., Garrel, C., Bahar, Y. E., Artis, E., Bender, R., Clerc, N., Dwelly, T., Fabricius, M. H., Grandis, S., Hernández-Lang, D., Hill, G. J., Joshi, J., Lamer, G., Merloni, A., Nandra, K., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Salvato, M., Sanders, J. S., Schrabback, T., Seppi, R., Zelmer, S., Zenteno, A., Zhang, X.
Publikováno v:
A&A 688, A210 (2024)
The first SRG/eROSITA All-Sky Survey (eRASS1) provides the largest intracluster medium-selected galaxy cluster and group catalog covering the western galactic hemisphere. Compared to samples selected purely on X-ray extent, the sample purity can be e
Externí odkaz:
http://arxiv.org/abs/2402.08453