A second view on the X-ray polarization of NGC 4151 with IXPE

Autor: Gianolli, V. E., Bianchi, S., Kammoun, E., Gnarini, A., Marinucci, A., Ursini, F., Parra, M., Tortosa, A., De Rosa, A., Kim, D. E., Marin, F., Matt, G., Serafinelli, R., Soffitta, P., Tagliacozzo, D., Di Gesu, L., Done, C., Marshall, H. L., Middei, R., Mikusincova, R., Petrucci, P-O., Ravi, S., Svoboda, J., Tombesi, F.

Publikováno v: A&A 691, A29 (2024)

We report on the second observing program of the active galactic nucleus NGC 4151 with simultaneous Imaging X-ray Polarimetry Explorer (IXPE; {\sim}750 ks), NuSTAR ({\sim}60 ks), XMM-Newton ({\sim}75 ks), and NICER ({\sim}65 ks) pointings. NGC 4151 i

Externí odkaz: http://arxiv.org/abs/2407.17243

Decision support system for selecting the rootstock, irrigation regime and nitrogen fertilization in winemaking vineyards: WANUGRAPE4.0

Autor: Visconti F., de la Fuente M., Buesa I., Escalona J.M., Medrano H., Miranda C., Mirás Avalos J.M., Palacios J., Pérez-Pérez J.G., Ramírez-Cuesta J.M., Romero P., Santesteban L.G., Torres N., Uriarte D., Parra M., Intrigliolo D.S.

Publikováno v: BIO Web of Conferences, Vol 68, p 01032 (2023)

We aim to develop and transfer to the wine sector a decision support system (DSS) in the frame of WANEGRAPE4.0 project that, integrated into a geographic information system, helps wine growers in i) selecting the most suitable rootstock given some ag

Externí odkaz: https://doaj.org/article/307de8fec2a54963b28d5576b382644c

IXPE observation confirms a high spin in the accreting black hole 4U 1957+115

Autor: Marra, L., Brigitte, M., Cavero, N. Rodriguez, Chun, S., Steiner, J. F., Dovčiak, M., Nowak, M., Bianchi, S., Capitanio, F., Ingram, A., Matt, G., Muleri, F., Podgorný, J., Poutanen, J., Svoboda, J., Taverna, R., Ursini, F., Veledina, A., De Rosa, A., Garcia, J. A., Lutovinov, A. A., Mereminskiy, I. A., Farinelli, R., Gunji, S., Kaaret, P., Kallman, T., Krawczynski, H., Kan, Y., Hu, K., Marinucci, A., Mastroserio, G., Mikušincová, R., Parra, M., Petrucci, P. O., Ratheesh, A., Soffitta, P., Tombesi, F., Zane, S., Agudo, I., Antonelli, L. A., Bachetti, M., Baldini, L., Baumgartner, W. H., Bellazzini, R., Bongiorno, S. D., Bonino, R., Brez, A., Bucciantini, N., Castellano, S., Cavazzuti, E., Chen, C., Ciprini, S., Costa, E., Del Monte, E., Di Gesu, L., Di Lalla, N., Di Marco, A., Donnarumma, I., Doroshenko, V., Ehlert, S. R., Enoto, T., Evangelista, Y., Fabiani, S., Ferrazzoli, R., Hayashida, K., Heyl, J., Iwakiri, W., Jorstad, S. G., Karas, V., Kislat, F., Kitaguchi, T., Kolodziejczak, J. J., La Monaca, F., Latronico, L., Liodakis, I., Maldera, S., Manfreda, A., Marin, F., Marscher, A. P., Marshall, H. L., Massaro, F., Mitsuishi, I., Mizuno, T., Negro, M., Ng, C. Y., O'Dell, S. L., Omodei, N., Oppedisano, C., Papitto, A., Pavlov, G. G., Peirson, A. L., Perri, M., Pesce-Rollins, M., Pilia, M., Possenti, A., Puccetti, S., Ramsey, B. D., Rankin, J., Roberts, O. J., Romani, R. W., Sgro, C., Slane, P., Spandre, G., Swartz, D. A., Tamagawa, T., Tavecchio, F., Tawara, Y., Tennant, A. F., Thomas, N. E., Trois, A., Tsygankov, S. S., Turolla, R., Vink, J., Weisskopf, M. C., Wu, K., Xie, F.

We present the results of the first X-ray polarimetric observation of the low-mass X-ray binary 4U 1957+115, performed with the Imaging X-ray Polarimetry Explorer in May 2023. The binary system has been in a high-soft spectral state since its discove

Externí odkaz: http://arxiv.org/abs/2310.11125

New Bayesian method for estimation of Value at Risk and Conditional Value at Risk

Autor: Martín, Jacinto, Parra, M. Isabel, Sanjuán, Eva L., Pizarro, Mario M.

Value at Risk (VaR) and Conditional Value at Risk (CVaR) have become the most popular measures of market risk in Financial and Insurance fields. However, the estimation of both risk measures is challenging, because it requires the knowledge of the ta

Externí odkaz: http://arxiv.org/abs/2306.12202

SKA Science Data Challenge 2: analysis and results

Autor: Hartley, P., Bonaldi, A., Braun, R., Aditya, J. N. H. S., Aicardi, S., Alegre, L., Chakraborty, A., Chen, X., Choudhuri, S., Clarke, A. O., Coles, J., Collinson, J. S., Cornu, D., Darriba, L., Veneri, M. Delli, Forbrich, J., Fraga, B., Galan, A., Garrido, J., Gubanov, F., Håkansson, H., Hardcastle, M. J., Heneka, C., Herranz, D., Hess, K. M., Jagannath, M., Jaiswal, S., Jurek, R. J., Korber, D., Kitaeff, S., Kleiner, D., Lao, B., Lu, X., Mazumder, A., Moldón, J., Mondal, R., Ni, S., Önnheim, M., Parra, M., Patra, N., Peel, A., Salomé, P., Sánchez-Expósito, S., Sargent, M., Semelin, B., Serra, P., Shaw, A. K., Shen, A. X., Sjöberg, A., Smith, L., Soroka, A., Stolyarov, V., Tolley, E., Toribio, M. C., van der Hulst, J. M., Sadr, A. Vafaei, Verdes-Montenegro, L., Westmeier, T., Yu, K., Yu, L., Zhang, L., Zhang, X., Zhang, Y., Alberdi, A., Ashdown, M., Bom, C. R., Brüggen, M., Cannon, J., Chen, R., Combes, F., Conway, J., Courbin, F., Ding, J., Fourestey, G., Freundlich, J., Gao, L., Gheller, C., Guo, Q., Gustavsson, E., Jirstrand, M., Jones, M. G., Józsa, G., Kamphuis, P., Kneib, J. -P., Lindqvist, M., Liu, B., Liu, Y., Mao, Y., Marchal, A., Márquez, I., Meshcheryakov, A., Olberg, M., Oozeer, N., Pandey-Pommier, M., Pei, W., Peng, B., Sabater, J., Sorgho, A., Starck, J. L., Tasse, C., Wang, A., Wang, Y., Xi, H., Yang, X., Zhang, H., Zhang, J., Zhao, M., Zuo, S.

The Square Kilometre Array Observatory (SKAO) will explore the radio sky to new depths in order to conduct transformational science. SKAO data products made available to astronomers will be correspondingly large and complex, requiring the application

Externí odkaz: http://arxiv.org/abs/2303.07943