Results 21 to 30 of about 51,602 (210)
Blue lines as chromospheric diagnostics: The Si I lines at 3906 and 4103 Å [PDF]
, 2001 We present a complete atomic model for Si I line synthesis. We study how the computed profiles of two blue lines of this atom are influenced by the choice of the atomic parameters and find that, although several cross sections are not known accurately ...
Cincunegui, Carolina Cecilia +1 more
core +1 more source
Two successive partial mini-filament confined ejections [PDF]
, 2019 Active region (AR) NOAA 11476 produced a series of confined plasma ejections, mostly accompanied by flares of X-ray class M, from 08 to 10 May 2012. The structure and evolution of the confined ejections resemble that of EUV surges; however, their origin ...
Bustos, C. +4 more
core +2 more sources
Enhanced transport through desorption-mediated diffusion [PDF]
, 2013 We present a master equation approach to the study of the bulk-mediated surface diffusion mechanism in a three-dimensional confined domain. The proposed scheme allowed us to evaluate analytically a number of magnitudes that were used to characterize the ...
Budde, Carlos Ernesto +3 more
core +1 more source
Are CMEs capable of producing Moreton waves? A case study: The 2006 December 6 event [PDF]
, 2018 Considering the chromosphere and a stratified corona, we examine, by performing 2D compressible magnetohydrodynamics simulations, the capability of a coronal mass ejection (CME) scenario to drive a Moreton wave. We find that given a typical flux rope (FR)
Costa, Andrea +5 more
core +1 more source
Tras las huellas de Jorge Juan: una mirada geográfica sobre Francisco José de Caldas.
Entorno Geografico, 2013 Francisco José de Caldas hizo parte del grupo de criollos ilustrados que desempeñaron un papel destacado ene l periodo anterior a la independencia de la Nueva Granada.
Luz Marina Duque Martínez
doaj +1 more source
Mezclando los Colores del Universo, Una Experiencia Astronómica desde las Artes
Góndola, Enseñanza y Aprendizaje de las Ciencias, 2023 La Astronomía es considerada una de las ciencias fundamentales del conocimiento humano. Además, se trata de un área interdisciplinaria en la que confluyen diferentes campos como las Matemáticas, la Física, la Biología, las ingenierías, las artes, entre ...
Yeni Marcela Marmolejo López +2 more
doaj +1 more source
Formalization of Universal Algebra in Agda [PDF]
, 2018 In this work we present a novel formalization of universal algebra in Agda. We show that heterogeneous signatures can be elegantly modelled in type-theory using sets indexed by arities to represent operations. We prove elementary results of heterogeneous
Gadea, Alejandro Emilio +2 more
core +1 more source
Editorial - Reflexiones sobre la enseñanza de la astronomía [PDF]
Góndola, Enseñanza y Aprendizaje de las Ciencias, 2018 ¿Por qué enseñamos astronomía en las escuelas? Es más, ¿se debe enseñar astronomía en las escuelas?
Néstor Camino
doaj
Occurrence of LINER galaxies within the galaxy group environment [PDF]
, 2017 We study the properties of a sample of 3967 low-ionization nuclear emission-line region (LINER) galaxies selected from SDSS-DR7, with respect to their proximity to galaxy groups.
Alonso Giraldes, Maria Sol +4 more
core +1 more source
El misterio kepleriano: tres movimientos cósmico-subjetivos
Revista Stultifera, 2020 El presente escrito analiza la figura de Johannes Kepler en tanto fundador de la astronomía moderna, indagando en los movimientos subjetivos que transita hacia el arribo a sus conocidas tres leyes del movimiento planetario.
Alejandro Varas Alvarado
doaj +1 more source