Galaxy distributions as fractal systems

Autores
Teles, Sharon; Reis Lopes, Amanda; Ribeiro, Marcelo B.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper discusses if large scale galaxy distribution samples containing almost one million objects can be characterized as fractal systems. The analysis performed by Teles et al. (Phys Lett B 813:136034, 2021) on the UltraVISTA DR1 survey is extended here to the SPLASH and COSMOS2015 catalogs, hence adding 750k new galaxies with measured redshifts to the studied samples. The standard Λ CDM cosmology having H= (70 ± 5) km/s/Mpc and number density tools required for describing these galaxy distributions as single fractal systems with dimension D are adopted. We use the luminosity distance dL, redshift distance dz and galaxy area distance (transverse comoving distance) dG as relativistic distance definitions to derive galaxy number densities in the redshift interval 0.1 ≤ z≤ 4 at volume limited subsamples defined by absolute magnitudes in the K-band. Similar to the findings of Teles et al. (2021), the results show two consecutive redshift scales where galaxy distribution data behave as single fractal structures. For z< 1 we found D= 1.00 ± 0.12 for the SPLASH galaxies, and D= 1 , 39 ± 0.19 for the COSMOS2015. For 1 ≤ z≤ 4 we respectively found D=0.83-0.37+0.36 and D=0.54-0.26+0.27. These results were verified to be robust under the assumed Hubble constant uncertainty. Calculations considering blue and red galaxies subsamples in both surveys showed that the fractal dimensions of blue galaxies as basically unchanged, but the ones for the red galaxies changed mostly to smaller values, meaning that D may be seen as a more intrinsic property of the distribution of objects in the Universe, therefore allowing for the fractal dimension to be used as a tool to study different populations of galaxies. All results confirm the decades old theoretical prediction of a decrease in the fractal dimension for z> 1.
Fil: Teles, Sharon. Universidade Federal do Rio de Janeiro; Brasil
Fil: Reis Lopes, Amanda. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Ribeiro, Marcelo B.. Universidade Federal do Rio de Janeiro; Brasil
Materia
cosmology
fractals
galaxy distributions
large-scale structure of the Universe
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/210903
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Galaxy distributions as fractal systemsTeles, SharonReis Lopes, AmandaRibeiro, Marcelo B.cosmologyfractalsgalaxy distributionslarge-scale structure of the Universehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1This paper discusses if large scale galaxy distribution samples containing almost one million objects can be characterized as fractal systems. The analysis performed by Teles et al. (Phys Lett B 813:136034, 2021) on the UltraVISTA DR1 survey is extended here to the SPLASH and COSMOS2015 catalogs, hence adding 750k new galaxies with measured redshifts to the studied samples. The standard Λ CDM cosmology having H= (70 ± 5) km/s/Mpc and number density tools required for describing these galaxy distributions as single fractal systems with dimension D are adopted. We use the luminosity distance dL, redshift distance dz and galaxy area distance (transverse comoving distance) dG as relativistic distance definitions to derive galaxy number densities in the redshift interval 0.1 ≤ z≤ 4 at volume limited subsamples defined by absolute magnitudes in the K-band. Similar to the findings of Teles et al. (2021), the results show two consecutive redshift scales where galaxy distribution data behave as single fractal structures. For z< 1 we found D= 1.00 ± 0.12 for the SPLASH galaxies, and D= 1 , 39 ± 0.19 for the COSMOS2015. For 1 ≤ z≤ 4 we respectively found D=0.83-0.37+0.36 and D=0.54-0.26+0.27. These results were verified to be robust under the assumed Hubble constant uncertainty. Calculations considering blue and red galaxies subsamples in both surveys showed that the fractal dimensions of blue galaxies as basically unchanged, but the ones for the red galaxies changed mostly to smaller values, meaning that D may be seen as a more intrinsic property of the distribution of objects in the Universe, therefore allowing for the fractal dimension to be used as a tool to study different populations of galaxies. All results confirm the decades old theoretical prediction of a decrease in the fractal dimension for z> 1.Fil: Teles, Sharon. Universidade Federal do Rio de Janeiro; BrasilFil: Reis Lopes, Amanda. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Ribeiro, Marcelo B.. Universidade Federal do Rio de Janeiro; BrasilSpringer2022-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/210903Teles, Sharon; Reis Lopes, Amanda; Ribeiro, Marcelo B.; Galaxy distributions as fractal systems; Springer; European Physical Journal C: Particles and Fields; 82; 10; 10-2022; 1-141434-6044CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-022-10866-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:46:50Zoai:ri.conicet.gov.ar:11336/210903instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:46:50.709CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Galaxy distributions as fractal systems
title Galaxy distributions as fractal systems
spellingShingle Galaxy distributions as fractal systems
Teles, Sharon
cosmology
fractals
galaxy distributions
large-scale structure of the Universe
title_short Galaxy distributions as fractal systems
title_full Galaxy distributions as fractal systems
title_fullStr Galaxy distributions as fractal systems
title_full_unstemmed Galaxy distributions as fractal systems
title_sort Galaxy distributions as fractal systems
dc.creator.none.fl_str_mv Teles, Sharon
Reis Lopes, Amanda
Ribeiro, Marcelo B.
author Teles, Sharon
author_facet Teles, Sharon
Reis Lopes, Amanda
Ribeiro, Marcelo B.
author_role author
author2 Reis Lopes, Amanda
Ribeiro, Marcelo B.
author2_role author
author
dc.subject.none.fl_str_mv cosmology
fractals
galaxy distributions
large-scale structure of the Universe
topic cosmology
fractals
galaxy distributions
large-scale structure of the Universe
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This paper discusses if large scale galaxy distribution samples containing almost one million objects can be characterized as fractal systems. The analysis performed by Teles et al. (Phys Lett B 813:136034, 2021) on the UltraVISTA DR1 survey is extended here to the SPLASH and COSMOS2015 catalogs, hence adding 750k new galaxies with measured redshifts to the studied samples. The standard Λ CDM cosmology having H= (70 ± 5) km/s/Mpc and number density tools required for describing these galaxy distributions as single fractal systems with dimension D are adopted. We use the luminosity distance dL, redshift distance dz and galaxy area distance (transverse comoving distance) dG as relativistic distance definitions to derive galaxy number densities in the redshift interval 0.1 ≤ z≤ 4 at volume limited subsamples defined by absolute magnitudes in the K-band. Similar to the findings of Teles et al. (2021), the results show two consecutive redshift scales where galaxy distribution data behave as single fractal structures. For z< 1 we found D= 1.00 ± 0.12 for the SPLASH galaxies, and D= 1 , 39 ± 0.19 for the COSMOS2015. For 1 ≤ z≤ 4 we respectively found D=0.83-0.37+0.36 and D=0.54-0.26+0.27. These results were verified to be robust under the assumed Hubble constant uncertainty. Calculations considering blue and red galaxies subsamples in both surveys showed that the fractal dimensions of blue galaxies as basically unchanged, but the ones for the red galaxies changed mostly to smaller values, meaning that D may be seen as a more intrinsic property of the distribution of objects in the Universe, therefore allowing for the fractal dimension to be used as a tool to study different populations of galaxies. All results confirm the decades old theoretical prediction of a decrease in the fractal dimension for z> 1.
Fil: Teles, Sharon. Universidade Federal do Rio de Janeiro; Brasil
Fil: Reis Lopes, Amanda. Ministério de Ciencia, Tecnologia e Innovacao. Observatorio Nacional; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Ribeiro, Marcelo B.. Universidade Federal do Rio de Janeiro; Brasil
description This paper discusses if large scale galaxy distribution samples containing almost one million objects can be characterized as fractal systems. The analysis performed by Teles et al. (Phys Lett B 813:136034, 2021) on the UltraVISTA DR1 survey is extended here to the SPLASH and COSMOS2015 catalogs, hence adding 750k new galaxies with measured redshifts to the studied samples. The standard Λ CDM cosmology having H= (70 ± 5) km/s/Mpc and number density tools required for describing these galaxy distributions as single fractal systems with dimension D are adopted. We use the luminosity distance dL, redshift distance dz and galaxy area distance (transverse comoving distance) dG as relativistic distance definitions to derive galaxy number densities in the redshift interval 0.1 ≤ z≤ 4 at volume limited subsamples defined by absolute magnitudes in the K-band. Similar to the findings of Teles et al. (2021), the results show two consecutive redshift scales where galaxy distribution data behave as single fractal structures. For z< 1 we found D= 1.00 ± 0.12 for the SPLASH galaxies, and D= 1 , 39 ± 0.19 for the COSMOS2015. For 1 ≤ z≤ 4 we respectively found D=0.83-0.37+0.36 and D=0.54-0.26+0.27. These results were verified to be robust under the assumed Hubble constant uncertainty. Calculations considering blue and red galaxies subsamples in both surveys showed that the fractal dimensions of blue galaxies as basically unchanged, but the ones for the red galaxies changed mostly to smaller values, meaning that D may be seen as a more intrinsic property of the distribution of objects in the Universe, therefore allowing for the fractal dimension to be used as a tool to study different populations of galaxies. All results confirm the decades old theoretical prediction of a decrease in the fractal dimension for z> 1.
publishDate 2022
dc.date.none.fl_str_mv 2022-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/210903
Teles, Sharon; Reis Lopes, Amanda; Ribeiro, Marcelo B.; Galaxy distributions as fractal systems; Springer; European Physical Journal C: Particles and Fields; 82; 10; 10-2022; 1-14
1434-6044
CONICET Digital
CONICET
url http://hdl.handle.net/11336/210903
identifier_str_mv Teles, Sharon; Reis Lopes, Amanda; Ribeiro, Marcelo B.; Galaxy distributions as fractal systems; Springer; European Physical Journal C: Particles and Fields; 82; 10; 10-2022; 1-14
1434-6044
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-022-10866-0
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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