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84 papers · 1 filter
Evidence of Hubble flow-like motion of young stellar populations away from the Perseus arm
Carlos Román-Zúñiga, Alexandre Roman-Lopes, Mauricio Tapia +2
In this letter we present evidence of coherent outward motion of a sample of young stars (30 Myr) in the Perseus Arm, whose apparent origin is located in the vicinity of the W3…
Spectroscopic study of the extremely young O-type triple system Herschel 36 A in the Hourglass Nebula. I. Orbital properties
Abdo R. Campillay, Julia I. Arias, Rodolfo H. Barbá +3
We present a detailed spectroscopic study of Herschel 36 A (H36A), the main stellar component of the massive multiple system Herschel 36 in the Hourglass Nebula, based on high-reso…
A homogeneous analysis of globular clusters from the APOGEE survey with the BACCHUS code. I. The Northern clusters
T. Masseron, D. A. García-Hernández, Sz. Mészáros +12
We analyze a large sample of 885 GCs giants from the APOGEE survey. We used the Cannon results to separate the red giant branch and the asymptotic giant branch stars, not only allo…
Probing Neutrino Dirac Mass in Left-Right Symmetric Models at the LHC and Next Generation Colliders
Juan Carlos Helo, Haolin Li, Nicolas A. Neill +2
We assess the sensitivity of the LHC, its high energy upgrade, and a prospective 100 TeV hadronic collider to the Dirac Yukawa coupling of the heavy neutrinos in left-right symmetr…
A Sequoia in the Garden: FSR 1758 - Dwarf Galaxy or Giant Globular Cluster?
R. H. Barba, D. Minniti, D. Geisler +5
We present the physical characterization of FSR 1758, a new large, massive object very recently discovered in the Galactic Bulge. The combination of optical data from the 2nd Gaia…
The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA Derived Quantities, Data Visualization Tools and Stellar Library
D. S. Aguado, Romina Ahumada, Andres Almeida +230
Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years o…