La leyenda negra continua…: la Sardegna viceregia nella narrativa sarda fra secondo Novecento e nuovo millennio

Il saggio approfondisce l’uso pubblico della leyenda negra da parte dei romanzieri sardi, che narrano avvenimenti, realmente accaduti o totalmente inventati, ambientati in Sardegna nell’età dei viceré spagnoli. Questi romanzi contribuiscono a perpetuare il mito della leyenda negra spagnola – un mito ormai totalmente distrutto dalla storiografia – e lo riutilizzano politicamente in chiave “sardista”.The article aims to focus the public use of the leyenda negra by Sardinian novelists who write about historical facts, real or invented, happened in Sardinia at the age of Spanish viceroys. The main contribution of these novels is perpetuating the story of the Spanish leyenda negra – a myth totally destroyed by recent historiography – by reusing it in political language in a “sardista” point of view

INTEGRAL discovery of unusually long broad-band X-ray activity from the Supergiant Fast X-ray Transient IGR J18483-0311

We report on a broad-band X-ray study (0.5-250 keV) of the Supergiant Fast X-ray Transient IGR J18483-0311 using archival INTEGRAL data and a new targeted XMM-Newton observation. Our INTEGRAL investigation discovered for the first time an unusually long X-ray activity (3-60 keV) which continuously lasted for at least 11 days, i.e. a significant fraction (about 60%) of the entire orbital period, and spanned orbital phases corresponding to both periastron and apastron passages. This prolongated X-ray activity is at odds with the much shorter durations marking outbursts from classical SFXTs especially above 20 keV, as such it represents a departure from their nominal behavior and it adds a further extreme characteristic to the already extreme SFXT IGR J18483-0311. Our IBIS/ISGRI high energy investigation (100-250 keV) of archival outbursts activity from the source showed that the recently reported hint of a possible hard X-ray tail is not real and it is likely due to noisy background. The new XMM-Newton targeted observation did not detect any sign of strong X-ray outburst activity from the source despite being performed close to its periastron passage, on the contrary IGR J18483-0311 was caught during the common intermediate X-ray state with a low luminosity value of 3x10^33 erg s^-1 (0.5-10 keV). We discuss all the reported results in the framework of both spherically symmetric clumpy wind scenario and quasi-spherical settling accretion model.Comment: Accepted for publication on MNRAS. 10 pages, 7 figures, 1 tabl