Investigating Merger-Induced Star Formation with Resolved Spectroscopy

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dc.contributor.authorGalicia Lozano, Ana Paula
dc.date.accessioned2022-09-08T15:23:42Z
dc.date.available2022-09-08T15:23:42Z
dc.date.copyright2022en_US
dc.date.issued2022-09-08
dc.description.abstractGalaxy mergers are very chaotic events which have been proven, both with observational (Ellison et al. 2008, Thorp et al. 2019) and simulation (Barnes & Hernquist 1991, Hopkins et al. 2013) studies, to drastically alter the morphologies and star formation rates (SFRs) of galaxies. Correspondingly, secular starbursts also exist, showing extreme star formation rates but no sign of a recent merger event. The aim of the project was to determine whether merger starbursts are different from secular starbursts by comparing the average offset in star formation surface densities (ΔΣSFR) of both groups. Using data products from the SDSS Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) newest data release (DR17), we study the average radial profiles of 175 visually classified starburst post-mergers and compare them to the average radial distributions of a control group consisting of secular starburst galaxies. We find that galaxy mergers trigger star formation in their constituents and that post-merger starbursts have, on average, central ΔΣSFR enhancements of ∼0.2 dex and up to ∼0.6 dex in comparison to the average secular starburst behavior. We therefore conclude that starbursts created by interactions are unique in comparison to those created by other secular processes.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelUndergraduateen_US
dc.description.sponsorshipValerie Kuehne Undergraduate Research Awards (VKURA)en_US
dc.identifier.urihttp://hdl.handle.net/1828/14211
dc.language.isoenen_US
dc.subjectgalaxiesen_US
dc.subjectgalaxy mergersen_US
dc.subjectstar formationen_US
dc.subjectstarburstsen_US
dc.subjectstar formation rateen_US
dc.subjectresolved spectroscopyen_US
dc.titleInvestigating Merger-Induced Star Formation with Resolved Spectroscopyen_US
dc.typePosteren_US

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