Zobrazeno 1 - 10
of 741
pro vyhledávání: '"Horellou P"'
Autor:
Carretti, E., Vazza, F., O'Sullivan, S. P., Vacca, V., Bonafede, A., Heald, G., Horellou, C., Mtchedlidze, S., Vernstrom, T.
The measurement of magnetic fields in cosmic web filaments can be used to reveal the magnetogenesis of the Universe. In previous work, we produced first estimates of the field strength and its redshift evolution using the Faraday Rotation Measure (RM
Externí odkaz:
http://arxiv.org/abs/2411.13499
Autor:
Piras, S., Horellou, C., Conway, J. E., Thomasson, M., del Palacio, S., Shimwell, T. W., O'Sullivan, S. P., Carretti, E., Šnidaric, I., Jelic, V., Adebahr, B., Berger, A., Best, P. N., Brüggen, M., Ruiz, N. Herrera, Paladino, R., Prandoni, I., Sabater, J., Vacca, V.
The aim of this study is to probe the sub-mJy polarized source population with LOFAR. We present the method used to stack LOFAR polarization datasets, the resulting catalog of polarized sources, and the derived polarized source counts. The ELAIS-N1 f
Externí odkaz:
http://arxiv.org/abs/2406.08346
Autor:
Adam, R., Ricci, M., Eckert, D., Ade, P., Ajeddig, H., Altieri, B., André, P., Artis, E., Aussel, H., Beelen, A., Benoist, C., Benoît, A., Berta, S., Bing, L., Birkinshaw, M., Bourrion, O., Boutigny, D., Bremer, M., Calvo, M., Cappi, A., Catalano, A., De Petris, M., Désert, F. -X., Doyle, S., Driessen, E. F. C., Faccioli, L., Ferrari, C., Gastaldello, F., Giles, P., Gomez, A., Goupy, J., Hahn, O., Hanser, C., Horellou, C., Kéruzoré, F., Koulouridis, E., Kramer, C., Ladjelate, B., Lagache, G., Leclercq, S., Lestrade, J. -F., Macías-Pérez, J. F., Madden, S., Maughan, B., Maurogordato, S., Maury, A., Mauskopf, P., Monfardini, A., Muñoz-Echeverría, M., Pacaud, F., Perotto, L., Pierre, M., Pisano, G., Pompei, E., Ponthieu, N., Revéret, V., Rigby, A., Ritacco, A., Romero, C., Roussel, H., Ruppin, F., Sereno, M., Schuster, K., Sievers, A., TintoréVidal, G., Tucker, C., Zylka, R.
Three galaxy clusters selected from the XXL X-ray survey at high redshift and low mass ($z\sim1$ and $M_{500} \sim 1-2 \times 10^{14}$ M$_{\odot}$) were observed with NIKA2 to image their Sunyaev-Zel'dovich effect (SZ) signal. They all present an SZ
Externí odkaz:
http://arxiv.org/abs/2310.06373
Autor:
Adam, R., Ricci, M., Eckert, D., Ade, P., Ajeddig, H., Altieri, B., André, P., Artis, E., Aussel, H., Beelen, A., Benoist, C., Benoît, A., Berta, S., Bing, L., Birkinshaw, M., Bourrion, O., Boutigny, D., Bremer, M., Calvo, M., Cappi, A., Catalano, A., De Petris, M., Désert, F. -X., Doyle, S., Driessen, E. F. C., Faccioli, L., Ferrari, C., Gastaldello, F., Giles, P., Gomez, A., Goupy, J., Hahn, O., Hanser, C., Horellou, C., Kéruzoré, F., Koulouridis, E., Kramer, C., Ladjelate, B., Lagache, G., Leclercq, S., Lestrade, J. -F., Macías-Pérez, J. F., Madden, S., Maughan, B., Maurogordato, S., Maury, A., Mauskopf, P., Monfardini, A., Muñoz-Echeverría, M., Pacaud, F., Perotto, L., Pierre, M., Pisano, G., Pompei, E., Ponthieu, N., Revéret, V., Rigby, A., Ritacco, A., Romero, C., Roussel, H., Ruppin, F., Sereno, M., Schuster, K., Sievers, A., Vidal, G. Tintoré, Tucker, C., Zylka, R.
Publikováno v:
A&A 684, A18 (2024)
The thermodynamical properties of the intracluster medium (ICM) are driven by scale-free gravitational collapse, but they also reflect the rich astrophysical processes at play in galaxy clusters. At low masses ($\sim 10^{14}$ M$_{\odot}$) and high re
Externí odkaz:
http://arxiv.org/abs/2310.05819
Autor:
Muller, S., Marti-Vidal, I., Combes, F., Gerin, M., Beelen, A., Horellou, C., Guelin, M., Aalto, S., Black, J. H., van Kampen, E.
Publikováno v:
A&A 674, A101 (2023)
Time variability of astronomical sources provides crude information on their typical size and on the implied physical mechanisms. PKS1830-211 is a remarkable radio-bright lensed quasar with a foreground molecular absorber at z=0.89. Small-scale morph
Externí odkaz:
http://arxiv.org/abs/2304.09002
Autor:
Šnidarić, Iva, Jelić, Vibor, Mevius, Maaijke, Brentjens, Michiel, Erceg, Ana, Shimwell, Timothy W., Piras, Sara, Horellou, Cathy, Sabater, Jose, Best, Philip N., Bracco, Andrea, Ceraj, Lana, Haverkorn, Marijke, O'Sullivan, Shane P., Turić, Luka, Vacca, Valentina
Publikováno v:
A&A 674, A119 (2023)
We present the first deep polarimetric study of Galactic synchrotron emission at low radio frequencies. Our study is based on 21 observations of the European Large Area Infrared Space Observatory Survey-North 1 (ELAIS-N1) field using the Low-Frequenc
Externí odkaz:
http://arxiv.org/abs/2303.13152
Autor:
Heesen, V., O'Sullivan, S. P., Brüggen, M., Basu, A., Beck, R., Seta, A., Carretti, E., Krause, M. G. H., Haverkorn, M., Hutschenreuter, S., Bracco, A., Stein, M., Bomans, D. J., Dettmar, R. -J., Chyży, K. T., Heald, G. H., Paladino, R., Horellou, C.
Context. The existence of magnetic fields in the circumgalactic medium (CGM) is largely unconstrained. Their detection is important as magnetic fields can have a significant impact on the evolution of the CGM and, in turn, the fields can serve as tra
Externí odkaz:
http://arxiv.org/abs/2302.06617
Autor:
O'Sullivan, S. P., Shimwell, T. W., Hardcastle, M. J., Tasse, C., Heald, G., Carretti, E., Brüggen, M., Vacca, V., Sobey, C., Van Eck, C. L., Horellou, C., Beck, R., Bilicki, M., Bourke, S., Botteon, A., Croston, J. H., Drabent, A., Duncan, K., Heesen, V., Ideguchi, S., Kirwan, M., Lawlor, L., Mingo, B., Nikiel-Wroczyński, B., Piotrowska, J., Scaife, A. M. M., van Weeren, R. J.
A Faraday rotation measure (RM) catalogue, or RM Grid, is a valuable resource for the study of cosmic magnetism. Using the second data release (DR2) from the LOFAR Two-metre Sky Survey (LoTSS), we have produced a catalogue of 2461 extragalactic high-
Externí odkaz:
http://arxiv.org/abs/2301.07697
Autor:
Pomakov, Valentin, O'Sullivan, Shane, Bruggen, Marcus, Vazza, Franco, Carretti, Ettore, Heald, George, Horellou, Cathy, Shimwell, Timothy, Shulevski, Aleksandar, Vernstrom, Tessa
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 515, Issue 1, September 2022, Pages 256 270
Faraday rotation studies of distant radio sources can constrain the evolution and the origin of cosmic magnetism. We use data from the LOFAR Two Metre Sky Survey: Data Release 2 (LoTSS DR2) to study the dependence of the Faraday rotation measure (RM)
Externí odkaz:
http://arxiv.org/abs/2208.01336
Autor:
Bethermin, M., Gkogkou, A., Van Cuyck, M., Lagache, G., Beelen, A., Aravena, M., Benoit, A., Bounmy, J., Calvo, M., Catalano, A., de Trenquelleon, B. de Batz, De Breuck, C., Fasano, A., Ferrara, A., Goupy, J., Hoarau, C., Horellou, C., Hu, W., Julia, A., Knudsen, K., Lambert, J. -C., Macias-Perez, J., Marpaud, J., Monfardini, A., Pallottini, A., Ponthieu, N., Roehlly, Y., Vallini, L., Walter, F., Weiss, A.
Publikováno v:
A&A 667, A156 (2022)
The intensity mapping of the [CII] 158um line redshifted to the sub-mm window is a promising probe of the z>4 star formation and its spatial distribution into the large-scale structure. To prepare the first-generation experiments (e.g., CONCERTO), we
Externí odkaz:
http://arxiv.org/abs/2204.12827