Results 31 to 40 of about 22,134 (184)
Serendipitous XMM-Newton discovery of a cluster of galaxies at z=0.28 [PDF]
, 2007 We report the discovery of a galaxy cluster serendipitously detected as an extended X-ray source in an offset observation of the group NGC 5044. The cluster redshift, z=0.281, determined from the optical spectrum of the brightest cluster galaxy, agrees ...
Aaron J. Barth +11 more
core +2 more sources
Earth and Space Science, Volume 7, Issue 4, April 2020., 2020 Abstract Elves are a class of transient luminous events, with a radial extent typically greater than 250 km, that occur in the lower ionosphere above strong electrical storms. We report the observation of 1,598 elves, from 2014 to 2016, recorded with unprecedented time resolution (100 ns) using the fluorescence detector (FD) of the Pierre Auger Cosmic ...
A. Aab +389 more
wiley +1 more source
Estudio arqueoastronómico de los petrograbados del Peñón del Diablo
Revista Chicomoztoc, 2020 El presente artículo se enfoca en desarrollar de manera sucinta los conjuntos rupestres estudiados en la tesis de licenciatura en arqueología que presenté el año 2018 en la EAHNM, en la cual, se tenía el objetivo principal de corroborar o descartar un ...
Alán M. Muñoz
doaj +1 more source
A new approach to generate a catalogue of potential historical novae
Astronomische Nachrichten, Volume 341, Issue 1, Page 79-98, January 2020., 2020 Abstract Ancient Chinese, Korean, and Vietnamese observers left us records of celestial sightings, the so‐called “guest stars” dated up to ∼2500 years ago. Their identification with modern observable targets could open interesting insights into the long‐term behavior of astronomical objects, as shown by the successful identification of eight galactic ...
Susanne M. Hoffmann +2 more
wiley +1 more source
Astronomia cultural: um olhar decolonial sobre e sob os céus do Brasil
Revista Scientiarum Historia, 2019 Este trabalho traz uma reflexão sobre o estudo da Astronomia nas Culturas como uma forma de contribuição a um pensar decolonial sobre as formas de observar e interpretar o céu e os fenômenos astronômicos. Com o intuito de valorizar e dar visibilidade às epistemologias do Sul e como forma de contrariar a lógica dominante da episteme eurocêntrica ...
Flavia Pedroza Lima +1 more
openaire +2 more sources
The influence of religious and cosmological beliefs on the solar architecture of the ancient world [PDF]
, 2014 In the earliest civilizations of the Ancient World, sun worship developed in parallel with an understanding of the movement of the stars. That was the origin of an architecture that expressed a number of religious and cosmological beliefs.
Fumadó Alsina, Joan Lluís +2 more
core +2 more sources
Anais do Museu Paulista: História e Cultura Material, 2005 O Mast é um museu de ciência e tecnologia situado no conjunto arquitetônico e paisagístico que pertenceu ao antigo Observatório Nacional (ON), na cidade do Rio de Janeiro.
Marcus Granato +2 more
doaj +1 more source
, 2010 Recent studies have shown that not only primary school students but also their future teachers reach science courses with pre-constructed and consistent models of the world surrounding them.
Alejandro Gangui +7 more
core +1 more source
Centrality Measures in Spatial Networks of Urban Streets
, 2005 We study centrality in urban street patterns of different world cities represented as networks in geographical space. The results indicate that a spatial analysis based on a set of four centrality indices allows an extended visualization and ...
A. Bavelas +9 more
core +2 more sources
Astronomia Cultural: como povos diferentes olham o Céu
e-Boletim da Física, 2016 O presente trabalho traz uma discuss˜ao sobre a astronomia cultural. O estudo contempla a explica¸c˜ao dos fenˆomenos celestes por diferentes grupos sociais ao longo dos tempos e dos espa¸co do nosso planeta.
openaire +4 more sources