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All Outputs (8)

Size, shade or shape? The contribution of galaxies of different types to the star-formation history of the Universe from SDSS-IV MaNGA (2021)
Journal Article
Peterken, T., Aragón-Salamanca, A., Merrifield, M., Avila-Reese, V., Boardman, N. F., Sánchez, H. D., …Brownstein, J. R. (2021). Size, shade or shape? The contribution of galaxies of different types to the star-formation history of the Universe from SDSS-IV MaNGA. Monthly Notices of the Royal Astronomical Society, 502(3), 3128–3143. https://doi.org/10.1093/mnras/stab268

Formation of S0s in extreme environments II: the star-formation histories of bulges, discs and lenses (2020)
Journal Article
Johnston, E. J., Aragón-Salamanca, A., Fraser-McKelvie, A., Merrifield, M., Häußler, B., Coccato, L., …Sheen, Y. (2021). Formation of S0s in extreme environments II: the star-formation histories of bulges, discs and lenses. Monthly Notices of the Royal Astronomical Society, 500(3), 4193-4212. https://doi.org/10.1093/mnras/staa2838

Different processes have been proposed to explain the formation of S0s, including mergers, disc instabilities, and quenched spirals. These processes are expected to dominate in different environments, and thus leave characteristic footprints in the k... Read More about Formation of S0s in extreme environments II: the star-formation histories of bulges, discs and lenses.

From the outside looking in: what can Milky Way Analogues tell us about the star formation rate of our own galaxy? (2019)
Journal Article
Fraser-Mckelvie, A., Merrifield, M., & Aragón-Salamanca, A. (2019). From the outside looking in: what can Milky Way Analogues tell us about the star formation rate of our own galaxy?. Monthly Notices of the Royal Astronomical Society, 489(4), 5030–5036. https://doi.org/10.1093/mnras/stz2493

The Milky Way has been described as an anaemic spiral, but is its star formation rate (SFR) unusually low when compared to its peers? To answer this question, we define a sample of Milky Way Analogues (MWAs) based on stringent cuts on the best litera... Read More about From the outside looking in: what can Milky Way Analogues tell us about the star formation rate of our own galaxy?.

Time-slicing spiral galaxies with SDSS-IV MaNGA (2019)
Journal Article
Peterken, T., Fraser-Mckelvie, A., Aragón-Salamanca, A., Merrifield, M., Kraljic, K., Knapen, J. H., …Drory, N. (2019). Time-slicing spiral galaxies with SDSS-IV MaNGA. Monthly Notices of the Royal Astronomical Society, 489(1), 1338–1343. https://doi.org/10.1093/mnras/stz2204/5548799

Spectra of galaxies contain a wealth of information about the stellar populations from which they are made. With integral-field unit (IFU) surveys, such data can be used to map out stellar population properties across the face of a galaxy, allowing o... Read More about Time-slicing spiral galaxies with SDSS-IV MaNGA.

The time delay between star formation quenching and morphological transformation of galaxies in clusters: a phase–space view of EDisCS (2019)
Journal Article
Kelkar, K., Gray, M. E., Aragón-Salamanca, A., Rudnick, G., Jaffé, Y. L., Jablonka, P., …Milvang-Jensen, B. (2019). The time delay between star formation quenching and morphological transformation of galaxies in clusters: a phase–space view of EDisCS. Monthly Notices of the Royal Astronomical Society, 486(1), 868-884. https://doi.org/10.1093/mnras/stz905

We explore the possible effect of cluster environments on the structure and star formation histories of galaxies by analysing the projected phase–space (PPS) of intermediate-redshift clusters (0.4 z 0.8). HST I−band imaging data from the ESO Distant... Read More about The time delay between star formation quenching and morphological transformation of galaxies in clusters: a phase–space view of EDisCS.

Tidal interactions and mergers in intermediate redshift EDisCS clusters (2018)
Journal Article
Deger, S., Rudnick, G., Kelkar, K., Aragón-Salamanca, A., Desai, V., Lotz, J. M., …Zaritsky, D. (2018). Tidal interactions and mergers in intermediate redshift EDisCS clusters. Astrophysical Journal, 869(1), Article 6. https://doi.org/10.3847/1538-4357/aaeb87

We study the fraction of tidal interactions and mergers with well identified observability timescales (fTIM) in group, cluster, and accompanying field galaxies and its dependence on redshift (z), cluster velocity dispersion (sigma) and environment an... Read More about Tidal interactions and mergers in intermediate redshift EDisCS clusters.

A direct test of density wave theory in a grand-design spiral galaxy (2018)
Journal Article
Peterken, T. G., Merrifield, M. R., Aragón-Salamanca, A., Drory, N., Krawczyk, C. M., Masters, K. L., …Westfall, K. B. (2019). A direct test of density wave theory in a grand-design spiral galaxy. Nature Astronomy, 3(2), 178-182. https://doi.org/10.1038/s41550-018-0627-5

The exact nature of the arms of spiral galaxies is still an open question1. It has been widely assumed that spiral arms in galaxies with two distinct symmetrical arms are the products of density waves that propagate around the disk, with the spiral a... Read More about A direct test of density wave theory in a grand-design spiral galaxy.