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29 papers · 2 filters
SOFIA/FORCAST resolves 30 - 40 um extended dust emission in nearby active galactic nuclei
Lindsay Fuller, Enrique Lopez-Rodriguez, Chris Packham +7
We present arcsecond-scale observations of the active galactic nuclei (AGNs) of seven nearby Seyfert galaxies observed from the Stratospheric Observatory For Infrared Astronomy (SO…
The course of the Orphan Stream in the Northern Galactic Hemisphere traced with Gaia DR2
Mark A. Fardal, Roeland P. van der Marel, Sangmo Tony Sohn +1
The Orphan Stream is one of the most prominent tidal streams in the Galactic halo. Using data on red giants, RR Lyrae, and horizontal branch stars from Gaia and other surveys, we d…
The FMOS-COSMOS survey of star-forming galaxies at VI: Redshift and emission-line catalog and basic properties of star-forming galaxies
Daichi Kashino, John D. Silverman, David Sanders +12
We present a new data release from the Fiber Multi-Object Spectrograph (FMOS)-COSMOS survey, which contains the measurements of spectroscopic redshift and flux of rest-frame optica…
APOGEE [C/N] Abundances Across the Galaxy: Migration and Infall from Red Giant Ages
Sten Hasselquist, Jon A. Holtzman, Matthew Shetrone +14
We present [C/N]-[Fe/H] abundance trends from the SDSS-IV Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey, Data Release 14 (DR14), for red giant branch stars…
Anomalously low metallicity regions in MaNGA star-forming galaxies: Accretion Caught in Action?
Hsiang-Chih Hwang, Jorge K. Barrera-Ballesteros, Timothy M. Heckman +14
We use data from 1222 late-type star-forming galaxies in the SDSS IV MaNGA survey to identify regions in which the gas-phase metallicity is anomalously-low compared to expectations…
Chemical and kinematic analysis of CN-strong Metal-poor Field Stars in LAMOST DR3
Baitian Tang, Chao Liu, J. G. Fernandez-Trincado +5
The large amount of chemical and kinematic information available in large spectroscopic surveys have inspired the search for chemically peculiar stars in the field. Though these me…