Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Andrej Čadež"'
Autor:
Andrej Čadež
Publikováno v:
Proceedings of the International Astronomical Union. 12:107-110
Tidal disruption events are characterized by the prompt release of very high energy electromagnetic radiation, which rapidly carries away a significant fraction of mass-energy. The time scale od prompt release is quite comparable to the time scale of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33a086d9f1e44f662713d30e215ef014
https://doi.org/10.1017/s1743921316013119
https://doi.org/10.1017/s1743921316013119
Publikováno v:
Astronomy & Astrophysics. 496:307-315
The compact radio source Sagittarius A (Sgr A) at the centre of our Galaxy harbours a supermassive black hole, whose mass has been measured from stellar orbital motions. Sgr A is therefore the nearest laboratory where super-massive black hole astroph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4762b854eefe5e133f955253d1f5ebe
https://doi.org/10.1051/0004-6361/200811059
https://doi.org/10.1051/0004-6361/200811059
Autor:
Cesare Barbieri, Andrej Čadež, M. Calvani, D. Ponikvar, Giampiero Naletto, Luca Zampieri, Mauro Barbieri
Optical observations provide convincing evidence that the optical phase of the Crab pulsar follows the radio one closely. Since optical data do not depend on dispersion measure variations, they provide a robust and independent confirmation of the rad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::658f680c43955eed9ea7a2dc28cba1d9
http://arxiv.org/abs/1512.05606
http://arxiv.org/abs/1512.05606
Autor:
Andrej Čadež, M. Calvani
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 363:177-182
The next generation of X-ray satellites will provide high-resolution line profiles from active galactic nuclei, which are nowadays considered to be born in an accretion disc around a supermassive black hole. In order to allow theoretical models to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f400b456980c39475a20f0838e24c17f
https://doi.org/10.1111/j.1365-2966.2005.09431.x
https://doi.org/10.1111/j.1365-2966.2005.09431.x
Autor:
Cesare Barbieri, Enrico Verroi, M. Calvani, P. Zoccarato, Andrej Čadež, Mauro Barbieri, Luca Zampieri, Giampiero Naletto, T. Occhipinti
The Crab nebula pulsar was observed in 2009 January and December with a novel very fast optical photon counter, Iqueye, mounted at the ESO 3.5 m New Technology Telescope. Thanks to the exquisite quality of the Iqueye data, we computed accurate phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcf7b1abc5567c82755b5b69cac85661
http://hdl.handle.net/11577/2808283
http://hdl.handle.net/11577/2808283
Publikováno v:
New Astronomy. 5:69-76
The iron Kα fluorescent line detected in many Seyfert 1 galaxies by ASCA and BeppoSAX is usually considered to arise in the innermost region of an accretion disk around a supermassive black hole. The line profile is usually modelled by assuming that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89fef8ecdea2086175167ec195869164
https://doi.org/10.1016/s1384-1076(00)00008-7
https://doi.org/10.1016/s1384-1076(00)00008-7
Publikováno v:
New Astronomy. 3:647-654
The broad X-ray iron line observed in many active galactic nuclei spectra is thought to originate from the accretion disc surrounding the putative supermassive black hole. We show here how to perform the analytical integration of the geodesic equatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d03b702c7217a0445a71ad531bb69ab7
https://doi.org/10.1016/s1384-1076(98)00035-9
https://doi.org/10.1016/s1384-1076(98)00035-9
Publikováno v:
Publications of the Astronomical Society of Japan. 49:159-169
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5480c6881fa2ee4de178983746d15ace
https://doi.org/10.1093/pasj/49.2.159
https://doi.org/10.1093/pasj/49.2.159
Autor:
Andreja Gomboc, Andrej Čadež
Publikováno v:
Astronomy and Astrophysics Supplement Series. 119:293-306
We present calculations and images of the appearance of a point-like star while heading toward and disappearing behind the horizon of a Schwarzschild black hole. A complete review of equations of motion and their solutions is given in Sect. 2, and Se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb78969a4f62941b23ea02158bee466c
https://doi.org/10.1051/aas:1996246
https://doi.org/10.1051/aas:1996246
Autor:
Andrej Čadež, P. Zoccarato, C. Facchinetti, D. Ponikvar, C. Germanà, T. Occhipinti, A. Di Paola, Cesare Barbieri, Enrico Verroi, M. Calvani, Giampiero Naletto, Mauro Barbieri, Ivan Capraro, Luca Zampieri, A. Possenti
We observed the Crab pulsar in October 2008 at the Copernico Telescope in Asiago - Cima Ekar with the optical photon counter Aqueye (the Asiago Quantum Eye) which has the best temporal resolution and accuracy ever achieved in the optical domain (hund
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5499666fac872fb7b439306a2ffe1f13
http://arxiv.org/abs/1210.1796
http://arxiv.org/abs/1210.1796