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The globular cluster NGC7492 and the Sagittarius tidal stream: together but unmixed
Julio A. Carballo-Bello, Jesús M. Corral-Santana, Márcio Catelan +7
We have derived from VIMOS spectroscopy the radial velocities for a sample of 71 stars selected from CFHT/Megacam photometry around the Galactic globular cluster NGC7492. In the re…
Unmixing the Galactic Halo with RR Lyrae tagging
V. Belokurov, A. J. Deason, S. E. Koposov +4
We show that tagging RR Lyrae stars according to their location in the period-amplitude diagram can be used to shed light on the genesis of the Galactic stellar halo. The mixture o…
Discovery of a thin stellar stream in the SLAMS survey
P. Jethwa, G. Torrealba, C. Navarrete +8
We report the discovery of a thin stellar stream - which we name the Jet stream - crossing the constellations of Hydra and Pyxis. The discovery was made in data from the SLAMS surv…
Tails and streams around the Galactic globular clusters NGC1851, NGC1904, NGC2298 and NGC2808
Julio A. Carballo-Bello, David Martínez-Delgado, Camila Navarrete +4
We present DECam imaging for the peculiar Galactic globular clusters NGC1851, NGC1904 (M79), NGC2298 and NGC2808. Our deep photometry reveals that all the clusters have an importan…
Extinction ratios in the inner Galaxy as revealed by the VVV survey
Javier Alonso-García, Dante Minniti, Márcio Catelan +7
Interstellar extinction towards the Galactic Center is large and significantly differential. Its reddening and dimming effects in red clump stars in the Galactic Bulge can be explo…
FSR 1716: A new Milky Way Globular Cluster confirmed using VVV RR Lyrae stars
Dante Minniti, Tali Palma, Istvan Dékány +35
We use deep multi-epoch near-IR images of the VISTA Variables in the Vía Láctea (VVV) Survey to search for RR Lyrae stars towards the Southern Galactic plane. Here we report the di…
Characterization of the VVV Survey RR Lyrae Population across the Southern Galactic Plane
Dante Minniti, Istvan Dékány, Daniel Majaess +14
Deep near-IR images from the VISTA Variables in the Vía Láctea (VVV) Survey were used to search for RR Lyrae stars in the Southern Galactic plane. A sizable sample of 404 RR Lyrae…