A relation between D4000 and [OII]3727Å for galaxies at redshift 0.45-1.25

A relation between D4000 and [OII]3727Å for galaxies at redshift 0.45-1.25

Oskar Kopczyński

For galaxies from zCOSMOS survey at redshift 0.45-1.25, we postulate empirical relationship between D4000 and [OII]3727Å Equivalent Width. The relation can be parameterized by new variable ZmiennaOII3727 (a combination of both input parameters), and can be derived analytically in the first order approximation, if Star Formation Rate follows exponential decay with the age t ∝ (D4000)2 - the conditions satisfied globally by our sample.

Proceedings of the Polish Astronomical Society, vol. 9, 194-198 (2019)

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A relation between D4000 and [OII]3727Å for galaxies at redshift 0.45-1.25