Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ LAReferencia - Red F...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 1 versions
addClaim

Ensamblaje de cúmulos de galaxias y formación de galaxias ultra difusas

Authors: Benavides Blanco, José Antonio;

Ensamblaje de cúmulos de galaxias y formación de galaxias ultra difusas

Abstract

Utilizando las simulaciones numéricas cosmológicas estudiamos los procesos de ensamblaje de cúmulos de galaxias, mostramos que los cúmulos se forman y ensamblan progresivamente mediante la acreción de galaxias individuales y en grupos. También mostramos que la baja dispersión de velocidades de los grupos acretados permiten fusiones entre sus galaxias miembros. Además desarrollamos un método de detección de subestructuras, basado en información del espacio de las fases proyectado. De todos los tipos de galaxias presentes en lo cúmulos nos centramos en la segunda parte de la tesis en el estudio de las galaxias ultra difusas (UDGs, por sus siglas en inglés) mostrando que estas se forman preferentemente en halos de alto momento angular en comparación a la población de galaxias enanas de tamaños normales. Finalmente presentamos un mecanismo para la formación de UDGs rojas en el campo mediante órbitas tipo backsplash.

Using cosmological numerical simulations we study the processes of galaxy cluster assembly, we show that clusters form and assemble progressively by the accretion of individual galaxies and groups. We also show that the low-velocity dispersion of accreted groups allows mergers between their member galaxies. We further develop a method of substructure detection, based on projected phase space information. Of all the types of galaxies present in the clusters we focus in the second part of the thesis on the study of ultra-diffuse galaxies (UDGs) showing that they form preferentially in halos of high angular momentum compared to the population of dwarf galaxies of normal sizes. Finally, we present a mechanism for the formation of red UDGs in the field through backsplash orbits.

Fil: Benavides Blanco, José Antonio. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina.

Tesis (Doctor en Astronomía)--Universidad Nacional de Córdoba, Facultad de Matemática, Astronomía, Física y Computación, 2023.

Country
Argentina
Keywords

Formación y evolución de estrellas y galaxias, Grupos de galaxias, Galaxias enanas, Galaxies clusters, Formation and evolution of stars and galaxies, Simulaciones cosmológicas, Interacción de galaxias, Cosmological simulations, Dwarf galaxies

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green