AGN versus Star-formation: A MUSE Analysis of NGC 1365

Simple item page
dc.contributor.authorMullaney, Kyla
dc.contributor.authorWhalen, Kelly E.
dc.contributor.authorCann, Jenna
dc.contributor.authorWeaver, Kimberly
dc.contributor.authorMcKaig, Jeffrey
dc.contributor.authorDoan, Sara
dc.date.accessioned2026-03-26T14:26:50Z
dc.date.issued2026-02-06
dc.description.abstractActive galactic nuclei (AGN) and star formation feedback may heat and remove gas from galaxies in a process that quenches ongoing star formation and shapes the evolution of galaxies. Potential impacts from these processes can be seen in the complex and interconnected signatures of AGN and star formation activity throughout a galaxy. Here, we analyze archival integral field unit (IFU) data for the nearby Seyfert galaxy, NGC 1365, as observed with the Multi Unit Spectroscopic Explorer (MUSE) instrument on the Very Large Telescope (VLT). Our analysis probes the ionization and kinematic properties of NGC 1365 at high spatial resolution over unprecedentedly large physical scales (approximately 40 kpc), allowing us to trace the effects of feedback throughout nearly an entire galaxy. We use these optical IFU data in conjunction with observations from the James Webb Space Telescope (JWST) and Chandra X-ray Observatory to analyze and compare maps of emission line flux, ionization state, star formation, and gas kinematics. In doing so, we identify a region of BPT-identified unexpectedly high ionization relative to surrounding areas in the star forming arms, and work to identify its source, finding that shock heating may play a significant role. Results from this analysis allow us to place constraints on the relative impact of AGN and star formation processes on the star forming gas in NGC 1365, as well as begin to inform our understanding on the global impacts of feedback in galaxy populations as a whole.
dc.description.sponsorshipThe material is based upon work supported by NASA under award number 80GSFC24M0006. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Center for Climate Simulation (NCCS) at Goddard Space Flight Center. This research made use of Photutils, an Astropy package for detection and photometry of astronomical sources (L. Bradley et al. 2025) This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation
dc.description.urihttp://arxiv.org/abs/2602.07124
dc.format.extent16 pages
dc.genrejournal articles
dc.genrepreprints
dc.identifierdoi:10.13016/m2gbbv-gonh
dc.identifier.urihttps://doi.org/10.48550/arXiv.2602.07124
dc.identifier.urihttp://hdl.handle.net/11603/42278
dc.language.isoen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain
dc.rights.urihttps://creativecommons.org/publicdomain/mark/1.0/
dc.subjectAstrophysics - Astrophysics of Galaxies
dc.titleAGN versus Star-formation: A MUSE Analysis of NGC 1365
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0003-1051-6564

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
2602.07124v1.pdf
Size:
13.42 MB
Format:
Adobe Portable Document Format
Download

Collections

UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection