1,748,395 research outputs found
Maris Pacifici (quod vulgo Mar del Zur) cum regionibus circumiacentibus, insulisque in eodem passim sparsis, novissima descriptio [cartographic material]
No full textMap of the Pacific Ocean showing part of south-east Asia, America, New Guinea and Terra Australis.; Plate 6 from: Theatro del mondo / de Abrahamo Ortelio. In Anversa : Appresso Giovanni Bapta. Vrintio, 1608.; Text on verso: Il Mare Pacifico overa del Sur.; Cartouche at bottom left of map: Genio et ingenio nobili dn. Nicolao Roccoxio, Patricio Antverpiensi, eiusdemque urbis Senatori / Abrahamus Ortelius, Regiae Mts. geographus lub. merito dedicabit, 1589.; Van der Krogt, 31:651.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-rm164-2
Photometry of V407 Vul and RXJ0806.3+1527 : twin systems?
Get PDFWe present new photometry of V407 Vul and RXJ0806.3+1527. These stars are thought to be ultra-compact pairs of white dwarfs and the shortest period binaries known. They have periods of 569 and 321 sec respectively. We found that the X-ray and optical light curves of RXJ0806.3+1527 are not anti-pbased as was previously thought. Instead, the X-ray lags the optical by 0.2 of cycle, indistinguishable from the phase offset seen in V407 Vul.
Although very similar to RXJ0806.3+1527, V407 Vul surprisingly is observed to have the spectrum of a G star. We test whether this could be a line-of-sight coincidence by searching for variations in the V407 Vul's position on the sky on the 569 second period. We find that the G star is separated from the variable by 0.03 arcsec, and has no direct connection with the 569 second source. This supports a common nature for V407 Vul and RXJ0806.3+1527
Arcimboldo 1527-1593
Get PDFBook Review of Arcimboldo 1527-1593 / Edited by Sylvia Ferino-Pagden.--ISBN-13: 978-88-6130-379-9. Reviewed by Kristina Keogh
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Château de Fontainebleau, ca 1527
No full textPhotographie: Hartill Art Associates. AFr-0901; Date du début des travaux de réalisation : Ca 1527
Indiae orientalis insvlarvmqve adiacientivm typvs [cartographic material].
No full textFol. 94.; Latin text on verso :Nobilissimam totius Orbis ... eadem lingua editum. Italic type-face.; Map of Indonesia, including India, New Guinea, China and NW coast of America. Relief shown pictorially.; Rex Nan Kivell Collection Map NK 1559
Mandurama photograph collection [1527] [picture] /
No full textAlso available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-an8526486-1527
Turcici imperii descriptio [cartographic material] /
No full textMap of the Middle East with relief shown pictorially.; Plate [122] from: Theatrum orbus terrarum / Abraham Ortelius. Antverpiae: Apud Ioannem Bapt. Vrintium, 1609.; Descriptive text on verso has illustrated capitals.; Koeman, Ort 39.; Also available online http://nla.gov.au/nla.map-vn3356723
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