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1. Images of the hydrogen gas in the galaxy NGC3621
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Images . ... These three images represent robust-weighted moment maps (column density, intensity weighted mean velocity and velocity dispersion) of HI in NGC3621, an attractive southern field spiral galaxy. ... The image shows evidence for gas swept up in spiral arms, particularly to the south and east. ...
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Ссылки http://www.atnf.csiro.au/outreach/images/astronomical/n3621.html -- 48.7 Кб -- 08.04.2016
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2. http://www.atnf.csiro.au/iau-comm31/pdf/Leap%20Second.pdf
metrologia The leap second: its history and possible future R. A. Nelson, D. D. McCarthy , S. Malys, J. Levine, B. Guinot, H. F. Fliegel , R. L. Beard and T. R. Bartholome w Abstract. This paper reviews the theoretica l motivatio n for the leap second in the context of the historica l evolutio n of time measurement . Th e periodic insertio n of a leap second step into th e scale of Coordinate d Universal Time (UTC) necessitates frequent changes in comple x timekeepin g systems an d is currentl y th e
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Ссылки http://www.atnf.csiro.au/iau-comm31/pdf/Leap%20Second.pdf -- 382.0 Кб -- 26.09.2010
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3. http://www.atnf.csiro.au/research/masermeeting/web_papers/523_Rudnitskij.pdf
... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 1 Contents of the work A sample of H2O maser emission sources has been observed since 1980. ... Rudnitskij et al. ... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 4 Maser in a protoplanetary disc (S255) Flux density, Jy S255: H2O line profile 5 February 2002 Radial velocity, LSR, km/s Rudnitskij et al. ... Twenty-Six Year Monitoring of Water Masers IAU Symposium 242, Alice Springs 12 ...
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Ссылки http://www.atnf.csiro.au/research/masermeeting/web_papers/523_Rudnitskij.pdf -- 481.0 Кб -- 26.04.2007
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