Papers by Fabrizio Bonoli
XII Convegno SIA Società Italiana di Archeoastronomia, 2014
Il gruppo di ricerca ha intrapreso da diversi anni uno studio che ha lo scopo di verificare se fe... more Il gruppo di ricerca ha intrapreso da diversi anni uno studio che ha lo scopo di verificare se fenomeni astronomici transienti particolarmente vistosi (transiti di comete brillanti, esplosioni di supernovae, ecc.) siano da considerarsi quali fonti di ispirazione per opere d’arte medievali nelle quali siano state rappresentate stelle o altri oggetti o fenomeni celesti. A questo fine, è stato costruito un data-base nel quale sono catalogate le opere d’arte medievali che rappresentano i Magi e la Natività. I nostri primi risultati mostrano effettivamente una forte correlazione tra questi eventi astronomici particolarmente luminosi ed impressionanti e numerose opere d’arte rappresentanti queste tematiche almeno nel XII e XIII secolo e, in parte, nel XIV secolo. (Incerti, Bònoli, Polcaro, 2010, 2011; Polcaro, Bònoli, Incerti, 2011)
Arci Postiglione, 2011
It is known long since that a number of exceptional and highly impressive astronomical events hav... more It is known long since that a number of exceptional and highly impressive astronomical events have been represented in Medieval artworks. We just remember the Bayeux Tapestry and the Giotto’s “Adoration of Magi” in the Scrovegni Chapel in Padua, representing the P/Halley comet transits of 1067 and 1301, respectively, while the “Apparition of Star to Magi” fresco in the San Pietro in Valle Abbey in Ferentillo (1182) has been suggested to represent the 1181 Supernova. However, no systematic survey of figurative Medieval and Renaissance art has been performed to date, in order to analyzing the role of transient astronomical events as inspiration sources of artworks in these epochs. In this work, we analyze a significant number of artworks, dated between the 9th and 16th Century and representing figurative elements in some way connected with Astronomy, in order to evaluate if they have been influenced by coeval extraordinary astronomical events
The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies, 1988
Active Galactic Nuclei, 1989
We have observed a homogeneous sample of Seyfert 1 and 1.5 galaxies with the aim to determine the... more We have observed a homogeneous sample of Seyfert 1 and 1.5 galaxies with the aim to determine the luminosity function of Seyfert nuclei. Observations were made with the CCD cameras of Asiago and Loiano Observatories in Β, V and R bands in order to isolate the contribution of different stellar populations. A photometric decomposition into three components (disc, bulge and nucleus) was fitted to the observed luminosity profiles to separate the nuclear and the host galaxy contributions and to understand whether underlying galaxies actually behave as "normal" galaxies.
It is known long since that a number of exceptional and highly impressive astronomical events hav... more It is known long since that a number of exceptional and highly impressive astronomical events have been represented in Medieval artworks. We just remember the Bayeux Tapestry and Giotto's The Adoration of the Magi in the Scrovegni Chapel in Padua, representing the P/Halley comet transits of 1067 and 1301, respectively, while The Apparition of Star to Magi fresco in the
In the late 1920s, the project of the big 5 m telescope on Mount Palomar was starting in the USA:... more In the late 1920s, the project of the big 5 m telescope on Mount Palomar was starting in the USA: an enterprise absolutely unapproachable for Italy at the time. In 1932, Guido Horn d’Arturo Director of the Astronomical Observatory of the University of Bologna from 1921 to 1954, with a dramatic interruption due to the Fascist racial laws conceived first a reflecting telescope made with many small mirrors instead of a large monolithic mirror. After a 1 m diameter prototype, in 1952 Horn d’Arturo made a 1.8 m diameter telescope, assembling 61 hexagonal mirrors, each of which was aligned and focused by three underlying screws. Less than thirty years later, the Multiple Mirror Telescope in Arizona was the first of a long series of telescopes developed with the same technique devised by Horn d’Arturo, until the under construction European Extremely Large Telescope in Chile, with about 800 hexagonal mirrors for a total of about 40 m diameter, and the James Webb Space Telescope, with 18 hex...
XXII Congresso nazionale di Storia della fisica e dell’astronomia, 2004
Cento anni di astronomia in Italia 1860-1960 - Convegno organizzato d'intesa con l'INAF e il Comitato Nazionale per il IV centenario della fondazione dell'Accademia dei Lincei, 2005
Istituto della Enciclopedia Italiana eBooks, 2015
Editrice Compositori eBooks, 2007
The astronomical Museo della Specola of the Department of Astronomy of the University of Bologna ... more The astronomical Museo della Specola of the Department of Astronomy of the University of Bologna was created in 1979, when a first group of instruments was restored on the occasion of the exhibition I materiali dell\u2019Istituto delle Scienze. In the following years, further restorations have interested both instruments and rooms. At present the museum is located in the same rooms which were devoted to observations in the ancient tower, i.e. the meridian room (sala meridiana) and the turret room (sala della torretta), and also in the recently created globe room (sala del globi). The instruments used by the Bolognese astronomers from the early 18th century to mid-19th, at first in the \uabSpecola marsiliana\ubb and later in the \uabSpecola\ubb of the \uabIstituto delle Scienze\ubb, have been brought back to these rooms, with their original placing in mind. These rooms are nowadays part of the Department of Astronomy of the University of Bologna, and of the Astronomical Observatory. Being almost entirely formed by original equipment of the observatory, the collection represents an extremely complete and organic whole. More than one third of the about 30 major instruments used by the astronomers for more than a century, with the exception of the clocks, has been recovered. Almost all of them have undergone varying degrees of restoration, with regard to both original appearance and function
Giunti, 2009
History of the origins of the modern european astronomical observatories
32th International Congress of the Italian Society of Historians of Physics and Astronomy, 2013
We present the first results of a project of digitization of the whole Historical Archives of the... more We present the first results of a project of digitization of the whole Historical Archives of the Department of Astronomy of the University of Bologna. The original documents are being digitized both at low and high resolution and stored as metadata. The watermarked low\u2013resolution images are being published online, so that researchers can easily preview the original and largely unpublished archival materials
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Papers by Fabrizio Bonoli