Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/7346
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dc.contributor.authorShalima, P-
dc.contributor.authorGogoi, R-
dc.contributor.authorPathak, A-
dc.contributor.authorMisra, R-
dc.contributor.authorGupta, R-
dc.contributor.authorVaidya, D. B-
dc.date.accessioned2020-11-20T13:35:24Z-
dc.date.available2020-11-20T13:35:24Z-
dc.date.issued2015-08-
dc.identifier.citationPublications of the Astronomical Society of the Pacific, Vol. 127, No. 954, pp. 726-731en_US
dc.identifier.issn0004-6280-
dc.identifier.urihttp://prints.iiap.res.in/handle/2248/7346-
dc.descriptionRestricted Access © The Astronomical Society of the Pacific http://dx.doi.org/10.1086/682368en_US
dc.description.abstractThe Mid-IR colors (F8/F24) of galaxies together with their IR-UV luminosity correlations can be used to get some insight into the relative abundance of the different dust grain populations present in them. The ELAIS-N1 field contains thousands of galaxies which do not have optical spectra but have been observed in the Mid-IR by Spitzer and UV by GALEX, making it ideal for these studies. As part of this work we have selected a sample of galaxies from the ELAIS-N1 field which have photometric observations in the MIR and UV as well as photometric redshifts from the SDSS database. We follow the constraint that the redshifts are ≤ 0.1, thereby giving us a total of 309 galaxies. We find that the majority of the galaxies in the sample are PAH dominated due to their high MIR flux ratio. We also find a reasonable correlation between the Mid-IR and the UV luminosities out of which the Mid-IR emission from PAHs at 8 μm is marginally better correlated than the 24 μm VSG emission with the UV luminosities. However, if we divide the sample based on their F8/F24 ratios, which is also an indicator of metallicity, the MIR-UV correlation seems to increase with the F8/F24 ratio. But the MIR-UV correlations are not very different for the PAHs and the VSG population within the individual metallicity groups.en_US
dc.language.isoenen_US
dc.publisherThe University of Chicago Press on behalf of the Astronomical Society of the Pacificen_US
dc.subjectAstrophysicsen_US
dc.subjectAstrophysics of Galaxiesen_US
dc.titleThe dust content and radiation fields of sample of galaxies in the ELAIS-N1 fielden_US
dc.typeArticleen_US
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