Search results for "Astrology"

Improved orbital parameters of accreting millisecond pulsar SAX J1808.4-3658

2006

Abstract We analyze the three outbursts of the X-ray millisecond pulsar SAX J1808.4-3658 that occurred in 1998, 2000, and 2002 observed with RXTE. With a technique based on epoch folding search we find an unique orbital solution valid over the five years of high temporal resolution data available. We revise the estimate of the orbital period, P orb  = 7249.1569(1) s and of its error, which we decrease by one order of magnitude. We also give the first constraint on the orbital period derivative, - 6.6 × 10 - 12 P ˙ orb + 0.8 × 10 - 12 s s - 1 . We find that in 2002 the pulse profile shape is clearly asymmetric, showing a secondary peak at about 145° from the main pulse, which is different fr…

Revised orbital parameters of the accreting millisecond pulsar SAX J1808.4-3658

2005

We present temporal analysis of the three outbursts of the X-ray millisecond pulsar SAX J1808.4-3658 that occurred in 1998, 2000 and 2002. With a technique that uses the chi^2 obtained with an epoch folding search to discriminate between different possible orbital solutions, we find an unique solution valid over the whole five years period for which high temporal resolution data are available. We revise the estimate of the orbital period, P_orb =7249.1569(1) s and reduce the corresponding error by one order of magnitude with respect to that previously reported. Moreover we report the first constraint on the orbital period derivative, -6.6 x 10^-12 < Pdot < +0.8 x 10^-12 s/s. These val…

Talismaaneja, tulenliekkejä ja taivaallisen heijasteita : Marsilio Ficinon kuvamagian taustat ja hermeettinen perinne

2014

Bartomeu de Tresbens, physician and astrologer in the service of king Peter the Ceremonious and the infant John: between the service to the Crown and…

2018

Bartomeu de Tresbens was a physician, astrologer and philosopher at the service of two kings of the Crown of Aragon, Peter IV the Ceremonious and his son, Duke John, the future John I the Hunter, between 1360 and 1375, approximately. His major work of astrological content has hardly been studied, except for the Llibre de les nativitats (Book of Nativities). Similarly, most of his biography is not known. The documents, which are mainly the correspondence of its relationship with the monarchy, are preserved, but also other records that connect him to the municipalities of Barcelona and Cervera. Particularly in the latter case, Tresbens was tempted by the municipal authorities for being the ph…

Kuvat ja magia Marsilio Ficinon ajattelussa

2011

Käsillä oleva tutkimus keskittyy kuvien ja symbolien rooleihin Marsilio Ficinon filosofiassa ja astrologisen magian teoriassa. Päätarkoituksena oli tutkia kuvien toimintaa ja siihen liittyviä teoreettisia taustaoletuksia, kuten käsityksiä ihmisen luomistyön arvosta ja muodoista universumin hierarkian operatiivisina osina. Tavoitteena on ollut välttää kuvamagian tutkimusperinteeseen toisinaan liittyneitä marginalisoivia näkökulmia; magia on pyritty sen sijaan näkemään osana maailmankuvien, tieteen, uskomusten, uskonnollisuuden ja parannuskäytäntöjen historiallista kehitystä, ja kuvien merkitystä on lähestytty niiden käyttötapojen kautta. Ficinon edustamassa emblemaattisessa traditiossa käsit…