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pro vyhledávání: '"Landi, R"'
Autor:
Malizia, A., Bassani, L., Landi, R., Molina, M., Masetti, N., Palazzi, E., Bruni, G., Bazzano, A., Ubertini, P., Bird, A. J.
In this work we have updated the list of AGN detected by INTEGRAL taking into account the new objects listed in the last published INTEGRAL/IBIS survey. We have collected 83 new AGN increasing the number of INTEGRAL detected active galaxies (436) by
Externí odkaz:
http://arxiv.org/abs/2301.09999
Autor:
LANDI, R. S.
Publikováno v:
Repositório Institucional da UFESUniversidade Federal do Espírito SantoUFES.
Made available in DSpace on 2016-08-29T15:36:59Z (GMT). No. of bitstreams: 1 tese_5383_.pdf: 667282 bytes, checksum: 48b18d934ab6f73c4f9d62aa9fa1c255 (MD5) Previous issue date: 2012-02-23
LANDI, Ragner de Souza. Avaliação de fatores ergonômic
LANDI, Ragner de Souza. Avaliação de fatores ergonômic
Externí odkaz:
http://repositorio.ufes.br/handle/10/4986
Autor:
Landi, R., Bassani, L., Bazzano, A., Bird, A. J., Fiocchi, M., Malizia, A., Panessa, F., Sguera, V., Ubertini, P.
The latest INTEGRAL/IBIS all-sky survey lists 219 hard X-ray sources whose nature is still unknown. We report on our ongoing campaign aimed at identifying these high-energy emitters by exploiting the focusing capabilities of the X-ray Telescope (XRT,
Externí odkaz:
http://arxiv.org/abs/1704.03872
Autor:
Rojas, A. F., Masetti, N., Minniti, D., Jiménez-Bailón, E., Chavushyan, V., Hau, G., McBride, V. A., Bassani, L., Bazzano, A., Bird, A. J., Galaz, G., Gavignaud, I., Landi, R., Malizia, A., Morelli, L., Palazzi, E., Patiño-Álvarez, V., Stephen, J. B., Ubertini, P.
Publikováno v:
A&A 602, A124 (2017)
We present the nature of 50 hard X-ray emitting objects unveiled through an optical spectroscopy campaign performed at seven telescopes in the northern and southern hemispheres. These objects were detected with Swift-BAT and listed as of unidentified
Externí odkaz:
http://arxiv.org/abs/1702.01629
Autor:
Marchesini, E. J., Masetti, N., Chavushyan, V., Cellone, S. A., Andruchow, I., Bassani, L., Bazzano, A., Jiménez-Bailón, E., Landi, R., Malizia, A., Palazzi, E., Patiño-Álvarez, V., Rodríguez-Castillo, G. A., Stephen, J. B., Ubertini, P.
Publikováno v:
A&A 596, A10 (2016)
Context. Based on their overwhelming dominance among associated Fermi gamma ray catalogue sources, it is expected that a large fraction of the unidentified Fermi objects are blazars. Through crossmatching between the positions of unidentified gamma r
Externí odkaz:
http://arxiv.org/abs/1608.05429
Autor:
Panessa, F., Bassani, L., Landi, R., Bazzano, A., Dallacasa, D., La Franca, F., Malizia, A., Venturi, T., Ubertini, P.
In order to investigate the role of absorption in AGN with jets, we have studied the column density distribution of a hard X-ray selected sample of radio galaxies, derived from the INTEGRAL/IBIS and Swift/BAT AGN catalogues (~7-10% of the total AGN p
Externí odkaz:
http://arxiv.org/abs/1606.05504
In the most recent IBIS survey based on observations performed during the first 1000 orbits of INTEGRAL, are listed 363 high energy emitters firmly associated with AGN, 107 of which are reported here for the first time. We have used X-ray data to ima
Externí odkaz:
http://arxiv.org/abs/1604.06303
We report the results from our analysis of a large set of archival data acquired with the X-ray telescope (XRT) onboard Swift, covering the sky region surrounding objects from the first Fermi Large Area Telescope (LAT) catalogue of high-energy source
Externí odkaz:
http://arxiv.org/abs/1506.07373
The first Fermi Large Area Telescope (LAT) catalogue of sources (1FHL) emitting at high energies (above 10 GeV) reports the details of 514 objects detected in the first three years of the Fermi mission. Of these, 71 were reported as unidentified in t
Externí odkaz:
http://arxiv.org/abs/1506.07006
We report on the identification of a new soft gamma-ray source, namely IGR J20159+3713/SWIFT J2015.9+3715, first detected by INTEGRAL/IBIS and then confirmed by Swift/BAT. The source, which has an observed 20-100 keV flux in the range (0.7-1.4) x 10^
Externí odkaz:
http://arxiv.org/abs/1310.7837