Journal article
The DUVET Survey: Direct T e-based Metallicity Mapping of Metal-enriched Outflows and Metal-poor Inflows in Markarian 1486
AJ Cameron, DB Fisher, D McPherson, GG Kacprzak, DA Berg, A Bolatto, J Chisholm, R Herrera-Camus, NM Nielsen, B Reichardt Chu, RJ Rickards Vaught, K Sandstrom, M Trenti
Astrophysical Journal Letters | Published : 2021
Abstract
We present electron temperature (T e) maps for the edge-on system Mrk 1486, affording "direct-method"gas-phase metallicity measurements across 5.″8 (4.1 kpc) along the minor axis and 9.″9 (6.9 kpc) along the major axis. These maps, enabled by strong detections of the [O iii] λ4363 auroral emission line across a large spatial extent of Mrk 1486, reveal a clear negative minor-axis T e gradient in which temperature decreases with increasing distance from the disk plane. We find that the lowest metallicity spaxels lie near the extremes of the major axis, while the highest metallicity spaxels lie at large spatial offsets along the minor axis. This is consistent with a picture in which low-metalli..
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Grants
Awarded by National Science Foundation
Funding Acknowledgements
This research was supported by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. A.J.C. acknowledges support from an Australian Government Research Training Program (RTP) Scholarship and from an Albert Shimmins Postgraduate Writing Up Award through the University of Melbourne. A.J.C. has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 Advanced Grant 789056 "First Galaxies". D.B.F. acknowledges support from Australian Research Council (ARC) Future Fellowship FT170100376. N.M.N. and G.G.K. acknowledge the support of the Australian Research Council through Discovery Project grant DP170103470. K.S. and R.J.R.V. acknowledge funding support from NSF Grant 1816462.