UVOT measurements of dust and star formation in the SMC and M33

Lea M.Z. Hagen, Michael Siegel, Caryl Gronwall, Erik Hoversten, Angelica Vargas, Stefan Immler

Research output: Contribution to journalConference article

Abstract

When measuring star formation rates using ultraviolet light, correcting for dust extinction is a critical step. However, with the variety of dust extinction curves to choose from, the extinction correction is quite uncertain. Here, we use Swift/UVOT to measure the extinction curve for starforming regions in the SMC and M33. We find that both the slope of the curve and the strength of the 2175 Å bump vary across both galaxies. In addition, as part of our modeling, we derive a detailed recent star formation history for each galaxy.

Original languageEnglish (US)
Article number140
JournalProceedings of Science
StatePublished - Jan 1 2014
Event10th Conference on Swift, SWIFT 2014 - Rome, Italy
Duration: Dec 2 2014Dec 5 2014

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star formation
extinction
dust
curves
galaxies
star formation rate
ultraviolet radiation
histories
slopes

All Science Journal Classification (ASJC) codes

  • General

Cite this

Hagen, L. M. Z., Siegel, M., Gronwall, C., Hoversten, E., Vargas, A., & Immler, S. (2014). UVOT measurements of dust and star formation in the SMC and M33. Proceedings of Science, [140].
Hagen, Lea M.Z. ; Siegel, Michael ; Gronwall, Caryl ; Hoversten, Erik ; Vargas, Angelica ; Immler, Stefan. / UVOT measurements of dust and star formation in the SMC and M33. In: Proceedings of Science. 2014.
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UVOT measurements of dust and star formation in the SMC and M33. / Hagen, Lea M.Z.; Siegel, Michael; Gronwall, Caryl; Hoversten, Erik; Vargas, Angelica; Immler, Stefan.

In: Proceedings of Science, 01.01.2014.

Research output: Contribution to journalConference article

TY - JOUR

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AU - Hagen, Lea M.Z.

AU - Siegel, Michael

AU - Gronwall, Caryl

AU - Hoversten, Erik

AU - Vargas, Angelica

AU - Immler, Stefan

PY - 2014/1/1

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N2 - When measuring star formation rates using ultraviolet light, correcting for dust extinction is a critical step. However, with the variety of dust extinction curves to choose from, the extinction correction is quite uncertain. Here, we use Swift/UVOT to measure the extinction curve for starforming regions in the SMC and M33. We find that both the slope of the curve and the strength of the 2175 Å bump vary across both galaxies. In addition, as part of our modeling, we derive a detailed recent star formation history for each galaxy.

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