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pro vyhledávání: '"Galactic astronomy"'
Akademický článek
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Publikováno v:
Scientific American, 2002 Jun 01. 286(6), 46-58.
Externí odkaz:
https://www.jstor.org/stable/26059722
Publikováno v:
Journal of Astronomical History and Heritage. 25(3):341-438
In this paper I discuss the Kapteyn Astronomical Laboratory during the period of Pieter Johannes van Rhijn's Directorate, which lasted from 1921 to 1957. It had developed under the founder Jacobus Cornelius Kapteyn into one of the leading astronomica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dris___00893::28242476daed4406e3422304aac841c7
https://ui.adsabs.harvard.edu/abs/2022JAHH...25..341V
https://ui.adsabs.harvard.edu/abs/2022JAHH...25..341V
Autor:
Ladd, Andrew
Publikováno v:
The Kenyon Review, 2016 Sep 01. 38(5), 22-33.
Externí odkaz:
http://www.jstor.org/stable/24786570
Publikováno v:
The Science Teacher, 2012 Jan 01. 79(1), 24-28.
Externí odkaz:
https://www.jstor.org/stable/43556751
Há uma concentração de aglomerados globulares moderadamente pobres em metais no bojo galáctico, e muitos deles mostram um Ramo Horizontal Azul (BHB). Essas características juntas apontam para uma idade antiga. Para entender melhor a origem desse
Publikováno v:
The Science Teacher, 2010 Oct 01. 77(7), 18-22.
Externí odkaz:
https://www.jstor.org/stable/24146339
Autor:
Riddle, Bob
Publikováno v:
Science Scope, 2009 Jan 01. 32(5), 70-73.
Externí odkaz:
https://www.jstor.org/stable/43182554
Autor:
D'Alessandro, Franco
Pulse arrival-time measurements made at frequencies near 670 and 800 MHz over a 7-year period have been used to study the timing behaviour of 45 southern pulsars. These measurements have resulted in more accurate estimates of the period, period deriv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fede05a45f1b3b09f1689843faed1f8
Autor:
Phillips, CJ
Observations of the 6. 7- and 12.2-GHz masing transitions of methanol by Norris et al. (1988; 1993) using the Australia Telescope Compact Array (ATCA) and the Parkes-Tidbinbilla Interferometer (PTI) found that for ten of the seventeen sources imaged
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0500ead8e7fe39a29b6d38cefd97b0bc