Zobrazeno 1 - 10
of 1 190
pro vyhledávání: '"Behar E"'
Autor:
Behar, E., Pucci, F., Wedlund, C. Simon, Henri, P., Ballerini, G., Preisser, L., Califano, F.
Over the past decades, near-Earth spacecraft observations have provided insights into the physics of the bow shock, suggesting that solar wind intrinsic turbulence influences the bow shock dynamics. On the other hand, theoretical studies, based on gl
Externí odkaz:
http://arxiv.org/abs/2409.17942
Autor:
Gianolli, V. E., Bianchi, S., Petrucci, P-O, Brusa, M., Chartas, G., Lanzuisi, G., Matzeu, G. A., Parra, M., Ursini, F., Behar, E., Bischetti, M., Comastri, A., Costantini, E., Cresci, G., Dadina, M., De Marco, B., De Rosa, A., Fiore, F., Gaspari, M., Gilli, R., Giustini, M., Guainazzi, M., King, A. R., Kraemer, S., Kriss, G., Krongold, Y., La Franca, F., Longinotti, A. L., Luminari, A., Maiolino, R., Marconi, A., Mathur, S., Matt, G., Mehdipour, M., Merloni, A., Middei, R., Miniutti, G., Nardini, E., Panessa, F., Perna, M., Piconcelli, E., Ponti, G., Ricci, F., Serafinelli, R., Tombesi, F., Vignali, C., Zappacosta, L.
Publikováno v:
A&A 687, A235 (2024)
The detection of blue-shifted absorption lines likely associated with ionized Iron K-shell transitions in the X-ray spectra of many Active Galactic Nuclei (AGN) suggests the presence of a highly ionized gas outflowing with mildly relativistic velocit
Externí odkaz:
http://arxiv.org/abs/2403.09538
Autor:
Petrucci, P. O., Piétu, V., Behar, E., Clavel, M., Bianchi, S., Henri, G., Barnier, S., Chen, S., Ferreira, J., Malzac, J., Belmont, R., Corbel, S., Coriat, M.
Most of the Active Galactic Nuclei (AGN) are radio-quiet (RQ) and, differently from radio-loud (RL) AGN, do not show signature of large-scale and powerful jets. The physical origin of their radio emission remains then broadly unclear. The observation
Externí odkaz:
http://arxiv.org/abs/2309.01804
Autor:
Werner, N., Řípa, J., Thöne, C., Münz, F., Kurfürst, P., Jelínek, M., Hroch, F., Benáček, J., Topinka, M., Lukes-Gerakopoulos, G., Zajaček, M., Labaj, M., Prišegen, M., Krtička, J., Merc, J., Pál, A., Pejcha, O., Dániel, V., Jon, J., Šošovička, R., Gromeš, J., Václavík, J., Steiger, L., Segiňák, J., Behar, E., Tarem, S., Salh, J., Reich, O., Ben-Ami, S., Barschke, M. F., Berge, D., Tohuvavohu, A., Sivanandam, S., Bulla, M., Popov, S., Chang, Hsiang-Kuang
This is the first in a collection of three papers introducing the science with an ultra-violet (UV) space telescope on an approximately 130~kg small satellite with a moderately fast re-pointing capability and a real-time alert communication system ap
Externí odkaz:
http://arxiv.org/abs/2306.15080
Autor:
Grafton-Waters, S., Mao, J., Mehdipour, M., Branduardi-Raymont, G., Page, M., Kaastra, J., Wang, Y., Pinto, C., Kriss, G. A., Walton, D. J., Petrucci, P. -O., Ponti, G., De Marco, B., Bianchi, S., Behar, E., Ebrero, J.
Publikováno v:
A&A 673, A26 (2023)
Obscuration events in type I active galactic nuclei (AGN) have been detected more frequently in recent years. The strong flux decrease in the soft X-ray band between observations has been caused by clouds with large column densities transiting our li
Externí odkaz:
http://arxiv.org/abs/2303.04717
Autor:
Matzeu, G. A., Brusa, M., Lanzuisi, G., Dadina, M., Bianchi, S., Kriss, G., Mehdipour, M., Nardini, E., Chartas, G., Middei, R., Piconcelli, E., Gianolli, V., Comastri, A., Longinotti, A. L., Krongold, Y., Ricci, F., Petrucci, P. O., Tombesi, F., Luminari, A., Zappacosta, L., Miniutti, G., Gaspari, M., Behar, E., Bischetti, M., Mathur, S., Perna, M., Giustini, M., Grandi, P., Torresi, E., Vignali, C., Bruni, G., Cappi, M., Costantini, E., Cresci, G., De Marco, B., De Rosa, A., Gilli, R., Guainazzi, M., Kaastra, J., Kraemer, S., La Franca, F., Marconi, A., Panessa, F., Ponti, G., Proga, D., Ursini, F., Fiore, F., King, A. R., Maiolino, R., Matt, G., Merloni, A.
We present a new X-ray spectroscopic study of $22$ luminous ($2\times10^{45}\lesssim L_{\rm bol}\rm /erg\,s^{-1} \lesssim 2\times10^{46}$) active galactic nuclei (AGNs) at intermediate-redshift ($0.1 \lesssim z \lesssim 0.4$), as part of the SUpermas
Externí odkaz:
http://arxiv.org/abs/2212.02960
Autor:
Mehdipour, M., Kriss, G. A., Brusa, M., Matzeu, G. A., Gaspari, M., Kraemer, S. B., Mathur, S., Behar, E., Bianchi, S., Cappi, M., Chartas, G., Costantini, E., Cresci, G., Dadina, M., De Marco, B., De Rosa, A., Dunn, J. P., Gianolli, V. E., Giustini, M., Kaastra, J. S., King, A. R., Krongold, Y., La Franca, F., Lanzuisi, G., Longinotti, A. L., Luminari, A., Middei, R., Miniutti, G., Nardini, E., Perna, M., Petrucci, P. -O., Piconcelli, E., Ponti, G., Ricci, F., Tombesi, F., Ursini, F., Vignali, C., Zappacosta, L.
We present a UV spectroscopic study of ionized outflows in 21 active galactic nuclei (AGN), observed with the HST. The targets of the SUBWAYS sample were selected with the aim to probe the parameter space of the underexplored AGN between the local Se
Externí odkaz:
http://arxiv.org/abs/2212.02961
Roughly 10% of quasars are "radio-loud", producing copious radio emission in large jets. The origin of the low-level radio emission seen from the remaining 90% of quasars is unclear. Observing a sample of eight radio-quiet quasars with the Very Long
Externí odkaz:
http://arxiv.org/abs/2208.01488
Publikováno v:
Oil & Gas Science and Technology, Vol 53, Iss 6, Pp 839-855 (2006)
This article is divided into two parts. In the first part, the authors present a comparison of the major techniques for the measurement of the molecular weight of macromolecules. The bibliographic results are gathered in several tables. In the second
Externí odkaz:
https://doaj.org/article/f14c673721eb4a669e8784ac4997523e
Publikováno v:
Oil & Gas Science and Technology, Vol 53, Iss 1, Pp 27-33 (2006)
Accumulation of waxy deposits is a commonly occurring problem during exploitation and transportation of paraffinic crude oils. Limitation of these undesirable solids or removal by methods such as addition of chemical inhibitor, scrapping or heat trac
Externí odkaz:
https://doaj.org/article/f958268a2f8846fcb8687b8b0c98cd57