EMU/GAMA: Radio detected galaxies are more obscured than optically selected galaxies

We demonstrate the importance of radio selection in probing heavily obscured galaxy populations. We combine Evolutionary Map of the Universe (EMU) Early Science data in the Galaxy and Mass Assembly (GAMA) G23 field with the GAMA data, providing optical photometry and spectral line measurements, toge...

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Veröffentlicht in:	arXiv.org 2023-12
Hauptverfasser:	Ahmed, U T, Hopkins, A M, Ware, J, Gordon, Y A, Bilicki, M, Brown, M J I, Cluver, M, Gürkan, G, López-Sánchez, Á R, Leahy, D A, Marchetti, L, Phillipps, S, Prandoni, I, Seymour, N, Taylor, E N, Vardoulaki, E
Format:	Artikel
Sprache:	eng
Schlagworte:	Galaxies Infrared astronomy Infrared photometry Initial mass function Line spectra Metallicity Photometry Red shift Star & galaxy formation Star formation rate Stars & galaxies
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Beschreibung
Zusammenfassung:	We demonstrate the importance of radio selection in probing heavily obscured galaxy populations. We combine Evolutionary Map of the Universe (EMU) Early Science data in the Galaxy and Mass Assembly (GAMA) G23 field with the GAMA data, providing optical photometry and spectral line measurements, together with Wide-field Infrared Survey Explorer (WISE) infrared (IR) photometry, providing IR luminosities and colours. We investigate the degree of obscuration in star forming galaxies, based on the Balmer decrement (BD), and explore how this trend varies, over a redshift range of 0
ISSN:	2331-8422