SRON (Netherlands Institute for Space Research) is developing the focal plane assembly (FPA) for Athena X-IFU, whose demonstration model (DM) will use for the first time a time domain multiplexing ...(TDM)-based readout system for the on-board transition-edge sensors (TES). We report on the characterization activities on a TDM setup provided by NASA goddard space flight center (GSFC) and national institute for standards and technology (NIST) and tested in SRON cryogenic test facilities. The goal of these activities is to study the impact of the longer harness, closer to X-IFU specs, in a different EMI environment and switching from a single-ended to a differential readout scheme. In this contribution we describe the advancement in the debugging of the system in the SRON cryostat, which led to the demonstration of the nominal spectral performance of 2.8 eV at 5.9 keV with 16-row multiplexing, as well as an outlook for the future endeavors for the TDM readout integration on X-IFU’s FPA-DM at SRON.
Giuseppe Campani, "Inventor Romae," an Uncommon Genius offers an account of the life and creations of the most talented maker of optic lenses, silent clocks and projector clocks of the second half of ...the seventeenth century but also provides you with unique insights into the scientific and technological landscape of baroque Rome and its links to a broader European scene.
Heveliana 2011–2016 Karolina Targosz
Studia historiae scientiarum,
12/2017, Letnik:
16
Journal Article
Recenzirano
Odprti dostop
W latach 2011–2016 ukazało się sporo publikacji poświęconych Janowi Heweliuszowi. Z okazji czterechsetnej rocznicy jego urodzin, obchodzonych w 2011 r., zostały opublikowane cztery książki zbierające ...pokłosie konferencji i prelekcji, z dużym udziałem autorów zagranicznych, przedstawiających różne aspekty działalności i osiągnięć gdańskiego astronoma. W 2014 r. zainicjowano edycję korespondencji Heweliusza tomem Prologomenów. Artykuł omawia krytycznie wspomniane publikacje, wskazując ich zalety i braki. Wstępne studium tomu Prologomena Chantal Grell ukazało się także w tłumaczeniu na język polski jako osobna książka. Autorka dokładniej niż jej poprzednicy przedstawiła lata studiów Heweliusza i sieć jego korespondentów, zbytni nacisk kładąc jednak na polemiki z uczonymi francuskimi i angielskimi. Jej końcowa konkluzja, kwalifikująca Heweliusza jako amatora odizolowanego od głównych prądów w nauce XVII w., jest sprzeczna z wymową jego korespondencji, która będzie publikowana przez następne lata.
Fifty Years of Quasars D'Onofrio, Mauro; Marziani, Paola; Sulentic, Jack W
2012, 20120424, 2012-06-30, Letnik:
386
eBook
The 50th anniversary of the discovery of quasars in 1963 presents an interesting opportunity to ask questions about the current state of quasar research. Formatted as a series of interviews with ...noted researchers in the field, each of them asked to address a specific set of questions covering topics selected by the editors, this book deals with the historical development of quasar research and discusses how advances in instrumentation and computational capabilities have benefitted quasar astronomy and have changed our basic understanding of quasars. In the last part of the book the interviews address the current topic of the role of quasars in galaxy evolution. They summarise open issues in understanding active galactic nuclei and quasars and present an outlook regarding what future observational facilities both on the ground and in space might reveal.Its interview format, the fascinating topic of quasars and black holes, and the lively recollections and at times controversial views of the contributors make this book both rewarding and a pleasure to read!
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The Biographical Encyclopedia of Astronomers is a unique and valuable resource for historians and astronomers alike. The two volumes include approximately 1550 biographical sketches on astronomers ...from antiquity to modern times. It is the collective work of about 400 authors edited by an editorial board of 9 historians and astronomers, and provides additional details on the nature of an entry and some summary statistics on the content of entries. This new reference provides biographical information on astronomers and cosmologists by utilizing contemporary historical scholarship.Individual entries vary from 100 to 1500 words, including the likes of the superluminaries such as Newton and Einstein, as well as lesser-known astronomers like Galileo's acolyte, Mario Guiducci.A comprehensive contributor index helps researchers to identify the authors of important scientific topics and treatises.
Astronomowie całego świata obserwowali zbliżenie Marsa do Ziemi, które następuje co 15 lat. Obserwatorium astronomiczne Uniwersytetu Józefa Piłsudskiego w Warszawie wykonało szereg pomiarów i ...obserwacji tej ciekawej planety.
Pracownicy obserwatorium astronomicznego podczas pracy.
Astronomers of the whole world observed Mars’ rapprochement to Earth, which occurs every 15 years. The astronomical observatory of the University of Józef Piłsudski in Warsaw has made a number of measurements and observations of this interesting planet.
Employees of the astronomical observatory while working.
August Mattsson on Elderly dar.
Mirror turned copy of image OLM _ 2015 _ 28 _ 9 (1790).
August Mattsson på äldre dar.
Spegelvänd kopia av bild OLM_2015_28_9 (1790).
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