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5 papers · 2 filters
Substructure in bulk velocities of Milky Way disk stars
Jeffrey L. Carlin, James DeLaunay, Heidi Jo Newberg +11
We find that Galactic disk stars near the anticenter exhibit velocity asymmetries in both the Galactocentric radial and vertical components across the mid-plane as well as azimutha…
Update on the Cetus Polar Stream and its Progenitor
William Yam, Jeffrey L. Carlin, Heidi Jo Newberg +4
We trace the Cetus Polar Stream (CPS) with blue horizontal branch (BHB) and red giant stars (RGBs) from Data Release 8 of the Sloan Digital Sky Survey (SDSS DR8). Using a larger da…
A Spatial Characterization of the Sagittarius Dwarf Galaxy Tidal Tails
Matthew Newby, Nathan Cole, Heidi Jo Newberg +6
We measure the spatial density of F turnoff stars in the Sagittarius dwarf tidal stream, from Sloan Digital Sky Survey (SDSS) data, using statistical photometric parallax. We find…
Kinematic Discovery of a Stellar Stream located in Pisces
Charles Martin, Jeffrey L. Carlin, Heidi Jo Newberg +1
We report the kinematic discovery of the Pisces Stellar Stream (PSS), at Galactic longitude of roughly l=135 degrees and longitude between -39 < b < -36 deg. We originally identifi…
Chemical and Physical Conditions in Molecular Cloud Core DC 000.4-19.5 (SL42) in Corona Australis
E. E. Hardegree-Ullman, J. Harju, M. Juvela +3
Chemical reactions in starless molecular clouds are heavily dependent on interactions between gas phase material and solid phase dust and ices. We have observed the abundance and d…