Zobrazeno 1 - 10
of 403
pro vyhledávání: '"Torrealba J"'
Publikováno v:
Open Astronomy, Vol 21, Iss 1-2, Pp 200-205 (2012)
A new emission line star was discovered on the plates of the Second Byurakan Survey (SBS). the follow up spectroscopy demonstrated that the object had a spectrum dominated by a late-type giant star with superposed hydrogen emission lines. the object
Externí odkaz:
https://doaj.org/article/9013aa1e77cd4430b73d7ba0110c9d69
Urgent endovascular repair of juxtarenal/pararenal aneurysm by off-the-shelf multibranched endograft
Autor:
Antonello, M., Arzola, H., Austerman, M., Berekoven, B., Bertoglio, L., Bonardelli, S., Bonvini, S., Cappiello, A., Cecere, F., Chiesa, R., Dias, N., Di Marzo, L., D'Oria, M., Faggioli, G., Ferrer, C., Fontaine, V., Freyrie, A., Gallitto, E., Gargiulo, M., Giudice, R., Haulon, S., Isernia, G., Leone, N., Lepidi, S., Mani, K., Mansour, W., Melissano, G., Melloni, A., Melo, R., Mendes Pedro, L., Mezzetto, L., Mitta, N., Nana, P., Oikonou, K., Panuccio, G., Perini, P., Pini, R., Pratesi, G., Pulli, R., Piazza, M., Kahlberg, A., Karelis, A., Katsargyris, A., Kolbel, T., Silingardi, R., Simonte, G., Spath, P., Squizzato, F., Tinelli, G., Torrealba, J., Tsilimparis, N., Wanhainen, A., Vacirca, A., Veraldi, G., Gallitto, Enrico, Faggioli, Gianluca, Austermann, Martin, Kölbel, Tilo, Tsilimparis, Nikolas, Dias, Nuno, Melissano, Germano, Simonte, Gioele, Katsargyris, Athanasios, Oikonomou, Kyriakos, Mani, Kevin, Pedro, Luis Mendes, Cecere, Fabrizio, Haulon, Stephan, Gargiulo, Mauro
Publikováno v:
In Journal of Vascular Surgery November 2024 80(5):1336-1349
Autor:
Patiño-Ávarez, V. M., Torrealba, J., Chavushyan, V., Cruz-González, I., Arshakian, T., León-Tavares, J., Popović, L. Č.
Publikováno v:
Front. Astron. Space Sci. (FrASS) 3:19 (2016)
We study the Baldwin Effect (BE) in 96 core-jet blazars with optical and ultraviolet spectroscopic data from a radio-loud AGN sample obtained from the MOJAVE 2 cm survey. A statistical analysis is presented of the equivalent widths ($W_{\lambda}$) of
Externí odkaz:
http://arxiv.org/abs/2001.08784
Autor:
Crespo, N. Álvarez, Masetti, N., Ricci, F., Landoni, M., Patiño-Álvarez, V., Massaro, F., D'Abrusco, R., Paggi, A., Chavushyan, V., Jiménez-Bailón, E., Torrealba, J., Latronico, L., La Franca, F., Smith, Howard A., Tosti, G.
Publikováno v:
2016 AJ, 151, 32
The extragalactic $\gamma$-ray sky is dominated by emission from blazars, a peculiar class of active galactic nuclei (AGNs). Many of the $\gamma$-ray sources included in Fermi -Large Area Telescope Third Source catalog (3FGL) are classified as a blaz
Externí odkaz:
http://arxiv.org/abs/1609.04829
Autor:
Shapovalova, A. I., Popovic, L. C., Chavushyan, V. H., Burenkov, A. N., Ilic, D., Kollatschny, W., Kovacevic, A., Valdes, J. R., Patino-Alvarez, V., Leon-Tavares, J., Torrealba, J., Zhdanova, V. E.
We report the results of the first long-term (1990-2014) optical spectro-photometric monitoring of a binary black hole candidate QSO E1821+643, a low-redshift high-luminosity radio-quiet quasar. In the monitored period the continua and H$\gamma$ flux
Externí odkaz:
http://arxiv.org/abs/1601.03551
Autor:
Humphrey, A., Roche, N., Gomes, J. M., Papaderos, P., Villar-Martín, M., Filho, M. E., Emonts, B. H. C., Aretxaga, I., Binette, L., Flaquer, B. Ocaña, Lagos, P., Torrealba, J.
A significant minority of high redshift radio galaxy (HzRG) candidates show extremely red broad band colours and remain undetected in emission lines after optical `discovery' spectroscopy. In this paper we present deep GTC optical imaging and spectro
Externí odkaz:
http://arxiv.org/abs/1501.04442
Autor:
Popovic, L. C., Shapovalova, A. I., Ilic, D., Burenkov, A. N., Chavushyan, V. H., Kollatschny, W., Kovacevic, A., Valdes, J. R., Leon-Tavares, J., Bochkarev, N. G., Patino-Alvarez, V., Torrealba, J.
Publikováno v:
A&A 572, A66 (2014)
We investigate a long-term (26 years, from 1987 to 2013) variability in the broad spectral line properties of the radio galaxy Arp 102B, an active galaxy with broad double-peaked emission lines. We use observations presented in Paper I (Shapovalova e
Externí odkaz:
http://arxiv.org/abs/1408.6955
Autor:
Shapovalova, A. I., Popovic, L. C., Burenkov, A. N., Chavushyan, V. H., Ilic, D., Kollatschny, W., Kovacevic, A., Bochkarev, N. G., Valdes, J. R., Torrealba, J., Patino-Alvarez, V., Leon-Tavares, J., Benitez, E., Carrasco, L., Dultzin, D., Mercado, A., Zhdanova, V. E.
Here we present results of the long-term (1987-2010) optical spectral monitoring of the broad line radio galaxy Arp 102B, a prototype of active galactic nuclei with the double-peaked broad emission lines, usually assumed to be emitted from an accreti
Externí odkaz:
http://arxiv.org/abs/1308.2407
Autor:
Patiño-Álvarez, V., Chavushyan, V., León-Tavares, J., Valdés, J. R., Carramiñana, A., Carrasco, L., Torrealba, J.
We describe an ongoing optical spectrophotometric monitoring program of a sample of Fermi/LAT bright sources showing prominent and variable {\gamma}-ray emission, with the 2.1m telescope at Observatorio Astrof\'isico Guillermo Haro (OAGH) located in
Externí odkaz:
http://arxiv.org/abs/1303.1893
Autor:
Shapovalova, A. I., Popovic, L. C., Burenkov, A. N., Chavushyan, V. H., Ilic, D., Kovacevic, A., Kollatschny, W., Kovacevic, J., Bochkarev, N. G., Valdes, J. R., Torrealba, J., Leon-Tavares, J., Mercado, A., Benitez, E., Carrasco, L., Dultzin, D., de la Fuente, E.
We present the results of a long-term (1999--2010) spectral optical monitoring campaign of the active galactic nucleus (AGN) Ark 564, which shows a strong Fe II line emission in the optical. This AGN is a narrow line Seyfert 1 (NLS1) galaxies, a grou
Externí odkaz:
http://arxiv.org/abs/1207.1782