Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Claudia M. Raiteri"'
Autor:
Abhradeep Roy, Alok C. Gupta, Varsha R. Chitnis, Sergio A. Cellone, Claudia M. Raiteri, Gustavo E. Romero, Paul J. Wiita, Anshu Chatterjee, Jorge A. Combi, Mai Liao, Arkadipta Sarkar, Massimo Villata
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 265, Iss 1, p 14 (2023)
We present a long-term and intraday variability study of optical multiwaveband ( U BV RI ) data from the blazar AO 0235+164 collected by various telescopes for ∼44 yr (1975–2019). The blazar was found to be significantly variable over the years i
Externí odkaz:
https://doaj.org/article/9c04f137f70b44478e2c4235bc7a33f7
Autor:
Claudia M. Raiteri, Massimo Villata
Publikováno v:
Galaxies, Vol 9, Iss 2, p 42 (2021)
Active galactic nuclei come in many varieties. A minority of them are radio-loud, and exhibit two opposite prominent plasma jets extending from the proximity of the supermassive black hole up to megaparsec distances. When one of the relativistic jets
Externí odkaz:
https://doaj.org/article/1a64f03ae4e44f0c83675132135afbbd
Publikováno v:
Galaxies, Vol 5, Iss 1, p 1 (2016)
We present a spectral variability study of a sample of about 25 bright blazars, based on optical spectroscopy. Observations cover the period from the end of 2008 to mid 2015, with an approximately monthly cadence. Emission lines have been identified
Externí odkaz:
https://doaj.org/article/3c4e7ee23d8d4a30986c685c65867157
Autor:
Maria I. Carnerero, Claudia M. Raiteri, Massimo Villata, Jose A. Acosta Pulido, Paul S. Smith, Valeri M. Larionov, the WEBT Collaboration
Publikováno v:
Galaxies, Vol 4, Iss 4, p 61 (2016)
We investigate the multiwavelength behaviour of the high-energy peaked BL Lac object (HBL) Mrk 421 at redshift z = 0 . 031 in the period 2007–2015. We use optical photometric, spectroscopic, and polarimetric data and near-infrared data obtained by
Externí odkaz:
https://doaj.org/article/1de4ba2daa9b4764906941a742d77fa4
Autor:
Filippo D’Ammando, Monica Orienti, Justin Finke, Josefin Larsson, Marcello Giroletti, Claudia M. Raiteri
Publikováno v:
Galaxies, Vol 4, Iss 3, p 11 (2016)
The discovery by the Large Area Telescope on board Fermi of variable γ-ray emission from radio-loud narrow-line Seyfert 1 (NLSy1) galaxies revealed the presence of a possible third class of Active Galactic Nuclei (AGN) with relativistic jets in addi
Externí odkaz:
https://doaj.org/article/ff37a8fb0f4f4d1c9758533aa401fb5f
Autor:
Abhradeep Roy, Varsha R Chitnis, Alok C Gupta, Paul J Wiita, Gustavo E Romero, Sergio A Cellone, Anshu Chatterjee, Jorge A Combi, Claudia M Raiteri, Arkadipta Sarkar, Massimo Villata
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 513:5238-5244
We present a long term optical $R$ band light curve analysis of the gravitationally lensed blazar AO 0235+164 in the time span 1982 - 2019. Several methods of analysis lead to the result that there is a periodicity of ~8.13 years present in these dat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dd3e8dd119ab7568415bf28ded7c270
https://doi.org/10.1093/mnras/stac1287
https://doi.org/10.1093/mnras/stac1287
Autor:
Alex G Markowitz, Krzysztof Nalewajko, Gopal Bhatta, Gulab C Dewangan, Sunil Chandra, Daniela Dorner, Bernd Schleicher, Urszula Pajdosz-Śmierciak, Łukasz Stawarz, Staszek Zola, Michał Ostrowski, Daniele Carosati, Saikruba Krishnan, Rumen Bachev, Erika Benítez, Kosmas Gazeas, David Hiriart, Shao-Ming Hu, Valeri Larionov, Alessandro Marchini, Katsura Matsumoto, A A Nikiforova, Tapio Pursimo, Claudia M Raiteri, Daniel E Reichart, Diego Rodriguez, Evgeni Semkov, Anton Strigachev, Yuki Sugiura, Massimo Villata, James R Webb, Axel Arbet-Engels, Dominik Baack, Matteo Balbo, Adrian Biland, Thomas Bretz, Jens Buss, Laura Eisenberger, Dominik Elsaesser, Dorothee Hildebrand, Roman Iotov, Adelina Kalenski, Karl Mannheim, Alison Mitchell, Dominik Neise, Maximilian Noethe, Aleksander Paravac, Wolfgang Rhode, Vitalii Sliusar, Roland Walter
The study of short-term variability properties in AGN jets has the potential to shed light on their particle acceleration and emission mechanisms. We report results from a four-day coordinated multi-wavelength campaign on the highly-peaked blazar (HB
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::276b4fb77984a9025dafc14f4ea505ee
http://arxiv.org/abs/2206.03874
http://arxiv.org/abs/2206.03874
Autor:
Claudia M. Raiteri, Maria I. Carnerero, Barbara Balmaverde, Eric C. Bellm, William Clarkson, Filippo D’Ammando, Maurizio Paolillo, Gordon T. Richards, Massimo Villata, Peter Yoachim, Ilsang Yoon
With their emission mainly coming from a relativistic jet pointing towards us, blazars are fundamental sources to study extragalactic jets and their central engines, consisting of supermassive black holes (SMBHs) fed by accretion discs. They are also
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6068d3c783bb41697882c469514cd41
http://arxiv.org/abs/2111.10172
http://arxiv.org/abs/2111.10172
Autor:
Andjelka B. Kovačević, Viktor Radović, Dragana Ilić, Luka Č. Popović, Roberto J. Assef, Paula Sánchez-Sáez, Robert Nikutta, Claudia M. Raiteri, Ilsang Yoon, Yasaman Homayouni, Yan-Rong Li, Neven Caplar, Bozena Czerny, Swayamtrupta Panda, Claudio Ricci, Isidora Jankov, Hermine Landt, Christian Wolf, Jelena Kovačević-Dojčinović, Maša Lakićević, Đorđe V. Savić, Oliver Vince, Saša Simić, Iva Čvorović-Hajdinjak, Sladjana Marčeta-Mandić
Publikováno v:
The Astrophysical Journal Supplement Series. 262:49
The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will detect an unprecedentedly large sample of actively accreting supermassive black holes with typical accretion disk (AD) sizes of a few light days. This brings us to face challen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7cd31fc6a4f34697dd9fa75318f7274
https://doi.org/10.3847/1538-4365/ac88ce
https://doi.org/10.3847/1538-4365/ac88ce