SIMBAD references

2023MNRAS.524...18M - Mon. Not. R. Astron. Soc., 524, 18-31 (2023/September-1)

Colour jumps across the spiral arms of Hubble Ultra Deep Field galaxies.

MARTINEZ-GARCIA E.E., GONZALEZ-LOPEZLIRA R.A. and PUERARI I.

Abstract (from CDS):

We have measured, at various wavelengths, the spiral arm pitch angles of a sample of distant spiral galaxies from the Hubble Space Telescope eXtreme Deep Field (XDF). According to density wave (DW) theory, we should detect colour jumps from red-to-blue across the spiral arms. Colour jumps are a consequence of large-scale shocks, which also generate the classic blue-to-red age/colour gradients, and have only been detected until now in nearby spiral galaxies. Our results indicate that colour jumps and gradients have been occurring in distant galaxies for at least the last 8 Gyr, in agreement with DW theory.

Abstract Copyright: © 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): galaxies: general - galaxies: high-redshift - galaxies: kinematics and dynamics - galaxies: spiral - galaxies: star formation - galaxies: structure

Simbad objects: 37

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