Zobrazeno 1 - 10
of 709
pro vyhledávání: '"Gregorini, L."'
Autor:
Murgia, M., Govoni, F., Vacca, V., Loi, F., Feretti, L., Giovannini, G., Melis, A., Concu, R., Carretti, E., Poppi, S., Valente, G., Bonafede, A., Bernardi, G., Boschin, W., Brienza, M., Clarke, T. E., de Gasperin, F., Ensslin, T. A., Ferrari, C., Gastaldello, F., Girardi, M., Gregorini, L., Johnston-Hollitt, M., Orru', E., Parma, P., Perley, R. A., Taylor, G. B, Marchegiani, P.
We present deep total intensity and polarization observations of the Coma cluster at 1.4 and 6.6 GHz performed with the Sardinia Radio Telescope. By combining the single-dish 1.4 GHz data with archival Very Large Array observations we obtain new imag
Externí odkaz:
http://arxiv.org/abs/2402.07306
Autor:
Vacca, V., Murgia, M., Govoni, F., Loi, F., Vazza, F., Finoguenov, A., Carretti, E., Feretti, L., Giovannini, G., Concu, R., Melis, A., Gheller, C., Paladino, R., Poppi, S., Valente, G., Bernardi, G., Boschin, W., Brienza, M., Clarke, T. E., Colafrancesco, S., Ensslin, T. E., Ferrari, C., de Gasperin, F., Gastaldello, F., Girardi, M., Gregorini, L., Johnston-Hollitt, M., Junklewitz, H., Orru, E., Parma, P., Perley, R., Taylor, G. B
We report the detection of diffuse radio emission which might be connected to a large-scale filament of the cosmic web covering a 8deg x 8deg area in the sky, likely associated with a z~0.1 over-density traced by nine massive galaxy clusters. In this
Externí odkaz:
http://arxiv.org/abs/1804.09199
Autor:
Loi, F., Murgia, M., Govoni, F., Vacca, V., Feretti, L., Giovannini, G., Carretti, E., Gastaldello, F., Girardi, M., Vazza, F., Concu, R., Melis, A., Paladino, R., Poppi, S., Valente, G., Boschin, W., Clarke, T. E., Colafrancesco, S., Enßlin, T., Ferrari, C., de Gasperin, F., Gregorini, L., Johnston-Hollitt, M., Junklewitz, H., Orrù, E., Parma, P., Perley, R., Taylor, G. B
We observed the galaxy cluster CIZA J2242.8+5301 with the Sardinia Radio Telescope to provide new constraints on its spectral properties at high frequency. We conducted observations in three frequency bands centred at 1.4 GHz, 6.6 GHz and 19 GHz, res
Externí odkaz:
http://arxiv.org/abs/1708.07125
Sardinia Radio Telescope observations of Abell 194 - the intra-cluster magnetic field power spectrum
Autor:
Govoni, F., Murgia, M., Vacca, V., Loi, F., Girardi, M., Gastaldello, F., Giovannini, G., Feretti, L., Paladino, R., Carretti, E., Concu, R., Melis, A., Poppi, S., Valente, G., Bernardi, G., Bonafede, A., Boschin, W., Brienza, M., Clarke, T. E., Colafrancesco, S., de Gasperin, F., Eckert, D., Ensslin, T. A., Ferrari, C., Gregorini, L., Johnston-Hollitt, M., Junklewitz, H., Orru', E., Parma, P., Perley, R., Rossetti, M., Taylor, G. B, Vazza, F.
Publikováno v:
A&A 603, A122 (2017)
We study the intra-cluster magnetic field in the poor galaxy cluster Abell 194 by complementing radio data, at different frequencies, with data in the optical and X-ray bands. We analyze new total intensity and polarization observations of Abell 194
Externí odkaz:
http://arxiv.org/abs/1703.08688
Autor:
Galluzzi, V., Massardi, M., Bonaldi, A., Casasola, V., Gregorini, L., Trombetti, T., Burigana, C., De Zotti, G., Ricci, R., Stevens, J., Ekers, R. D., Bonavera, L., Alighieri, S. di Serego, Liuzzo, E., Lopez-Caniego, M., Mignano, A., Paladino, R., Toffolatti, L., Tucci, M.
We present high sensitivity polarimetric observations in 6 bands covering the 5.5-38 GHz range of a complete sample of 53 compact extragalactic radio sources brighter than 200 mJy at 20 GHz. The observations, carried out with the Australia Telescope
Externí odkaz:
http://arxiv.org/abs/1611.07746
Autor:
Beltran, M. T., Bianchi, E., Brand, J., Casasola, V., Cesaroni, R., Codella, C., Fontani, F., Gregorini, L., Guidi, G., Hunt, L., Liuzzo, E., Marconi, A., Massardi, M., Moscadelli, L., Paladino, R., Podio, L., Prandoni, I., Rygl, K. L. J., Rivilla, V., Testi, L.
The Premiale Project "Science and Technology in Italy for the upgraded ALMA Observatory - iALMA" has the goal of strengthening the scientific, technological and industrial Italian contribution to the Atacama Large Millimeter/submillimeter Array (ALMA
Externí odkaz:
http://arxiv.org/abs/1509.02702
Autor:
Ricci, R., Righini, S., Verma, R., Prandoni, I., Carretti, E., Mack, K. -H., Massardi, M., Procopio, P., Zanichelli, A., Gregorini, L., Mantovani, F., Gawronski, M. P., Peel, M. W.
We present follow-up observations at 5, 8 and 30 GHz of the K-band Northern Wide Survey (KNoWS) 20 GHz Bright Sample, performed with the 32-m Medicina Radio Telescope and the 32-m Torun Radio Telescope. The KNoWS sources were selected in the Northern
Externí odkaz:
http://arxiv.org/abs/1307.8380
Autor:
Righini, S., Carretti, E., Ricci, R., Zanichelli, A., Mack, K. -H., Massardi, M., Prandoni, I., Procopio, P., Verma, R., López-Caniego, M., Gregorini, L., Mantovani, F.
During 2010-2011, the Medicina 32-m dish hosted the 7-feed 18-26.5 GHz receiver built for the Sardinia Radio Telescope, with the goal to perform its commissioning. This opportunity was exploited to carry out a pilot survey at 20 GHz over the area for
Externí odkaz:
http://arxiv.org/abs/1208.0742
We present detailed imaging of Faraday rotation and depolarization for the radio galaxies 0206+35, 3C 270, 3C 353 and M 84, based on Very Large Array observations at multiple frequencies in the range 1365 to 8440 MHz. This work suggests a more comple
Externí odkaz:
http://arxiv.org/abs/1101.1807
Autor:
Santangelo, G., Testi, L., Leurini, S., Walmsley, C. M., Cesaroni, R., Bronfman, L., Carey, S., Gregorini, L., Menten, K. M., Molinari, S., Noriega-Crespo, A., Olmi, L., Schuller, F.
We present single-dish (sub)millimeter observations of gas and dust in the Galactic high-mass star-forming region G19.61-0.23, with the aim of studying the large-scale properties and physical conditions of the molecular gas across the region. The fin
Externí odkaz:
http://arxiv.org/abs/1006.3574