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Clues to the Formation of Lenticular Galaxies Using Spectroscopic Bulge-Disk Decomposition
Evelyn J. Johnston, Alfonso Aragon-Salamanca, Michael R. Merrifield +1
Lenticular galaxies have long been thought of as evolved spirals, but the processes involved to quench the star formation are still unclear. By studying the individual star formati…
Disentangling the stellar populations in the counter-rotating disc galaxy NGC 4550
Evelyn J. Johnston, Michael R. Merrifield, Alfonso Aragon-Salamanca +1
In order to try and understand its origins, we present high-quality long-slit spectral observations of the counter-rotating stellar discs in the strange S0 galaxy NGC 4550. We kine…
Spectroscopic bulge-disc decomposition: a new method to study the evolution of lenticular galaxies
E. J. Johnston, A. Aragón-Salamanca, M. R. Merrifield +1
A new method for spectroscopic bulge-disc decomposition is presented, in which the spatial light profile in a two-dimensional spectrum is decomposed wavelength-by-wavelength into b…