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dc.contributor.author
Rodríguez, S.
dc.contributor.author
Garcia Lambas, Diego Rodolfo
dc.contributor.author
Padilla, Nelson David
dc.contributor.author
Troncoso-Iribarren, P.
dc.date.available
2021-09-20T17:28:23Z
dc.date.issued
2020-02
dc.identifier.citation
Rodríguez, S.; Garcia Lambas, Diego Rodolfo; Padilla, Nelson David; Troncoso-Iribarren, P.; Following the crumbs: Statistical effects of ram pressure in galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 492; 1; 2-2020; 413-419
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/140899
dc.description.abstract
We analyse the presence of dust around galaxy group members through the reddening of background quasars. By taking into account quasar colour and their dependence on redshift and angular position, we derive mean quasar colours excess in projected regions around member galaxies and infer the associated dust mass. For disc-like galaxies perpendicular to the plane of the sky, and at groupcentric distances of the order of the virial radius, thus likely to reside in the infall regions of groups,we find systematic colour excess values e~0.009±0.004 for g - r colour. Under the hypothesis of MilkyWay dust properties, we derive dust masses of 5.8 ± 2.5 × 108M⊙ h-1, implying that a large fraction of dust is being stripped from galaxies in their path to groups. We also studied the photometry of member galaxies to derive a colour asymmetry relative to the group centre direction from a given galaxy. We conclude that the regions of galaxies facing the centre are bluer, consistent with the effects of gas compression and star formation. We also combine these two procedures finding that galaxies with a small colour asymmetry show the largest amounts of dust towards the external regions compared to a control sample. We conclude that dust removal is very efficient in galaxies on infall. The fact that galaxies redder towards groups centres are associated with the strongest reddening of background quasars suggest that gas removal induced by ram pressure stripping plays a key role in galaxy evolution and dust content.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
GALAXIES: FUNDAMENTAL PARAMETERS
dc.subject
GALAXIES: GROUPS: GENERAL
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GALAXIES: STAR FORMATION
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INTERGALACTIC MEDIUM
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QUASARS: GENERAL
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SURVEYS
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Following the crumbs: Statistical effects of ram pressure in galaxies
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-04-23T16:42:06Z
dc.identifier.eissn
1365-2966
dc.journal.volume
492
dc.journal.number
1
dc.journal.pagination
413-419
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Rodríguez, S.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.description.fil
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
dc.description.fil
Fil: Padilla, Nelson David. Pontificia Universidad Católica de Chile; Chile. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Troncoso-Iribarren, P.. Pontificia Universidad Católica de Chile; Chile
dc.journal.title
Monthly Notices of the Royal Astronomical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/492/1/413/5673502
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1093/mnras/stz3456
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