117 citations · 424 across the 13 of their papers we have counts for
19 papers · 1 filter
SDSS-IV MaNGA: Exploring the local scaling relations for N/O
Adam L. Schaefer, Christy Tremonti, Guinevere Kauffmann +10
We present, for the first time, the relationship between local stellar mass surface density, , and N/O derived from SDSS-IV MaNGA data, using a sample of h…
Understanding the Nature of an Unusual Post-Starburst Quasar with Exceptionally Strong Ne V Emission
Cameren Swiggum, Christy Tremonti, Serena Perrotta +7
We present a quasar, SDSS J004846.45-004611.9, discovered in the SDSS-III BOSS survey. A visual analysis of this spectrum reveals highly broadened and blueshifted narrow…
SDSS-IV/MaNGA: Can impulsive gaseous inflows explain steep oxygen abundance profiles \& anomalously-low-metallicity regions?
Zachary J. Pace, Christy Tremonti, Adam L. Schaefer +5
Gaseous inflows are necessary suppliers of galaxies' star-forming fuel, but are difficult to characterize at the survey scale. We use integral-field spectroscopic measurements of g…
SDSS-IV MaNGA: galaxy gas-phase metallicity gradients vary across the mass-size plane
Nicholas F. Boardman, Gail Zasowski, Jeffrey A. Newman +5
Gas-phase abundances and abundance gradients provide much information on past stellar generations, and are powerful probes of how galaxies evolve. Gas abundance gradients in galaxi…
SDSS IV MaNGA -- Metallicity and ionisation parameter in local star-forming galaxies from Bayesian fitting to photoionisation models
M. Mingozzi, F. Belfiore, G. Cresci +15
We measured gas-phase metallicity, ionisation parameter and dust extinction for 1795 representative local star-forming galaxies using integral field spectroscopy from the SDSS-IV M…
SDSS-IV MaNGA: Variations in the N/O -- O/H relation bias metallicity gradient measurements
Adam L. Schaefer, Christy Tremonti, Francesco Belfiore +4
In this paper we use strong line calibrations of N/O and O/H in MaNGA spaxel data to explore the systematics introduced by variations in N/O on various strong-line metallicity diag…