Galaxy and Mass Assembly (GAMA): Mid-infrared properties as tracers of galaxy environment

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dc.contributor.authorSureshkumar, Unnikrishnan
dc.contributor.authorDurkalec, Anna
dc.contributor.authorCluver, Michelle
dc.date.accessioned2023-04-17T10:03:07Z
dc.date.available2023-04-17T10:03:07Z
dc.date.issued2023
dc.description.abstractWe investigate how different mid-infrared (mid-IR) properties of galaxies are correlated with the environment in which the galaxies are located. For this purpose, we first study the dependence of galaxy clustering on the absolute magnitude at 3.4 µm and redshift. Then, we look into the environmental dependence of mid-IR luminosities and the galaxy properties derived from these luminosities. We also explore how various IR galaxy luminosity selections influence the galaxy clustering measurements. We used a set of W1 (3.4 µm) absolute magnitude (MW1) selected samples from the Galaxy and Mass Assembly (GAMA) survey matched with mid-IR properties from the Wide-field Infrared Survey Explorer (WISE) in the redshift range 0.07 ≤ z < 0.43. We computed the galaxy two-point correlation function (2pCF) and compared the clustering lengths between subsamples binned in MW1 and in redshift. We also measured the marked correlation function (MCF), in which the galaxies are weighted by marks when measuring clustering statistics, using the luminosities in the WISE W1 to W4 (3.4 to 22 µm) bands as marks. Additionally, we compared the measurements of MCFs with different estimates of stellar mass and star formation rate (SFR) used as marks. Finally, we checked how different selections applied to the sample affect the clustering measurements.en_US
dc.identifier.citationSureshkumar, U. et al. (2023). Galaxy and Mass Assembly (GAMA): Mid-infrared properties as tracers of galaxy environment. Astronomy & Astrophysics, A 669, A27. https://doi.org/10.1051/0004-6361/20224319en_US
dc.identifier.issn1432-0746
dc.identifier.urihttp://hdl.handle.net/10566/8818
dc.language.isoenen_US
dc.publisherEDP Sciencesen_US
dc.subjectAstronomyen_US
dc.subjectPhysicsen_US
dc.subjectGalaxiesen_US
dc.subjectStatisticsen_US
dc.subjectCosmologyen_US
dc.titleGalaxy and Mass Assembly (GAMA): Mid-infrared properties as tracers of galaxy environmenten_US
dc.typeArticleen_US

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