153 citations · 259 across the 8 of their papers we have counts for
8 papers
The VVV Infrared Variability Catalog (VIVA-I)
C. E. Ferreira Lopes, N. J. G. Cross, M. Catelan +17
Thanks to the VISTA Variables in the Via Lactea (VVV) ESO Public Survey it is now possible to explore a large number of objects in those regions. This paper addresses the variabili…
EPIC 201498078b: A low density Super Neptune on an eccentric orbit
Rafael Brahm, Nestor Espinoza, Markus Rabus +15
We report the discovery of EPIC 201498078b, which was first identified as a planetary candidate from Kepler K2 photometry of Campaign 14, and whose planetary nature and orbital par…
Near-Field cosmology with RR Lyrae variable stars: A first view of substructure in the southern sky
S. Duffau, A. K. Vivas, C. Navarrete +7
We present an update of a spectroscopic follow-up survey at low-resolution of a large number of RR Lyrae halo overdensity candidates found in the southern sky. The substructure can…
Tachoastrometry: astrometry with radial velocities
L. Pasquini, C. Cortés, M. Lombardi +3
Spectra of composite systems (e.g., spectroscopic binaries) contain spatial information that can be retrieved by measuring the radial velocities (i.e., Doppler shifts) of the compo…
Kinematics of a globular cluster with an extended profile: NGC5694
M. Bellazzini, A. Mucciarelli, A. Sollima +6
We present a study of the kinematics of the remote globular cluster NGC5694 based on GIRAFFE@VLT medium resolution spectra. A sample of 165 individual stars selected to lie on the…
Helium enhanced stars and multiple populations along the horizontal branch of NGC2808: direct spectroscopic measurements
A. F. Marino, A. P. Milone, N. Przybilla +15
We present an abundance analysis of 96 horizontal branch (HB) stars in NGC2808, a globular cluster exhibiting a complex multiple stellar population pattern. These stars are distrib…