1.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR102 papers
- Instituto de Astrofísica de CanariasES96 papers
- Osservatorio Astronomico di PadovaIT93 papers
- Universidad de La LagunaES87 papers
- Millennium Institute of AstrophysicsCL83 papers
- Max Planck Institute for AstronomyDE80 papers
- European Southern ObservatoryCL75 papers
- Space Telescope Science InstituteUS68 papers
- University of La SerenaCL65 papers
- Universidad de AntofagastaCL64 papers
- Pontificia Universidad Católica de ChileCL62 papers
- University of PaduaIT59 papers
48 papers · 1 filter
Radial trends in Galactic globular clusters and their possible origin
Valery V. Kravtsov
The relaxation time at the half-mass radius of Galactic globular clusters (GGCs) is typically within a few Gyr. Hence, the majority of GGCs are expected to be well relaxed systems,…
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…
SPHERE dynamical and spectroscopic characterization of HD142527B
R. Claudi, A. -L. Maire, D. Mesa +50
We detect the accreting low-mass companion HD142527B at a separation of 73 mas (11.4 au) from the star. No other companions with mass greater than 10 MJ are visible in the field of…
The Fornax 3D project: dust mix and gas properties in the center of early-type galaxy FCC 167
S. Viaene, M. Sarzi, N. Zabel +15
Galaxies continuously reprocess their interstellar material. One can therefore expect changing dust grain properties in galaxies which have followed different evolutionary pathways…
Spectral and orbital characterisation of the directly imaged giant planet HIP 65426 b
A. C. Cheetham, M. Samland, S. S. Brems +38
HIP 65426 b is a recently discovered exoplanet imaged during the course of the SPHERE-SHINE survey. Here we present new and observations of the planet from the NACO instr…
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…
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…
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…
Mapping of shadows cast on a protoplanetary disk by a close binary system
V. D'Orazi, R. Gratton, S. Desidera +47
For a comprehensive understanding of planetary formation and evolution, we need to investigate the environment in which planets form: circumstellar disks. Here we present high-cont…
Discovery of Tidal RR LYRAE stars in the Bulge Globular Cluster M 62
Dante Minniti, José G. Fernández-Trincado, Vincenzo Ripepi +3
The RR Lyrae (RRL) rich globular cluster M 62 (NGC 6266) is one of the most massive globular clusters in the Milky Way, located in the dense region of the Galactic bulge, where dyn…
A catalogue of nuclear stellar velocity dispersions of nearby galaxies from H STIS spectra to constrain supermassive black hole masses
I. Pagotto, E. M. Corsini, M. Sarzi +4
We present new measurements for the nuclear stellar velocity dispersion within sub-arcsecond apertures for 28 nearby galaxies. Our data consist of Space Telescope Imagin…
Spherically symmetric static vacuum solutions in hybrid metric-Palatini gravity
Bogdan Danila, Tiberiu Harko, Francisco S. N. Lobo +1
We consider vacuum static spherically symmetric solutions in the hybrid metric-Palatini gravity theory, which is a combination of the metric and Palatini formalisms unifying…
K2 Targets Observed with SPHERE/VLT: An M4-7 Dwarf Companion Resolved around EPIC 206011496
Roxanne Ligi, Olivier Demangeon, Susana Barros +6
The quest to discover exoplanets is one of the most important missions in astrophysics, and is widely performed using the transit method, which allows for the detection of exoplane…
Chemical Cartography with APOGEE: Multi-element abundance ratios
David H. Weinberg, Jon A. Holtzman, Sten Hasselquist +25
We map the trends of elemental abundance ratios across the Galactic disk, spanning R = 3-15 kpc and midplane distance |Z|= 0-2 kpc, for 15 elements in a sample of 20,485 stars meas…
Solving the nonlinear biharmonic equation by the Laplace-Adomian and Adomian Decomposition Methods
Man Kwong Mak, Chun Sing Leung, Tiberiu Harko
The biharmonic equation, as well as its nonlinear and inhomogeneous generalizations, plays an important role in engineering and physics. In particular the focusing biharmonic nonli…
Near Infrared spectroscopic indices for unresolved stellar populations. I. Template galaxy spectra
P. Francois, L. Morelli, A. Pizzella +5
A new generation of spectral synthesis models has been developed in the recent years, but there is no matching -- in terms of quality and resolution -- set of template galaxy spect…
A 3.9 km baseline intensity interferometry photon counting experiment
Giampiero Naletto, Luca Zampieri, Cesare Barbieri +6
In the last years we have operated two very similar ultrafast photon counting photometers (Iqueye and Aqueye+) on different telescopes. The absolute time accuracy in time tagging t…
The properties of the kinematically distinct components in NGC 448 and NGC 4365
B. Nedelchev, L. Coccato, E. M. Corsini +6
Aims. We study the kinematically distinct components in two early-type galaxies NGC 448 and NGC 4365 aided by integral-field observations with the Multi Unit Spectroscopic Explorer…
Timing analysis and pulse profile of the Vela pulsar in the optical band from Iqueye observations
A. Spolon, L. Zampieri, A. Burtovoi +5
The Vela pulsar is among a number of pulsars which show detectable optical pulsations. We performed optical observations of this pulsar in January and December 2009 with the Iqueye…
Fossil group origins IX. Probing the formation of fossil galaxy groups with stellar population gradients of their central galaxies
E. M. Corsini, L. Morelli, S. Zarattini +7
Fossil groups (FGs) are galaxy aggregates with an extended and luminous X-ray halo, which are dominated by a very massive early-type galaxy and lack of L* objects. FGs are indeed c…
High-Contrast study of the candidate planets and protoplanetary disk around HD~100546
E. Sissa, R. Gratton, A. Garufi +62
The nearby Herbig Be star HD100546 is known to be a laboratory for the study of protoplanets and their relation with the circumstellar disk that is carved by at least 2 gaps. We ob…
The origin of accreted stellar halo populations in the Milky Way using APOGEE, , and the EAGLE simulations
J. Ted Mackereth, Ricardo P. Schiavon, Joel Pfeffer +12
Recent work indicates that the nearby Galactic halo is dominated by the debris from a major accretion event. We confirm that result from an analysis of APOGEE-DR14 element abundanc…
Modeling Daily Seasonality of Mexico City Ozone using Nonseparable Covariance Models on Circles Cross Time
Philip A. White, Emilio Porcu
Mexico City tracks ground-level ozone levels to assess compliance with national ambient air quality standards and to prevent environmental health emergencies. Ozone levels show dis…
Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70
M. Keppler, M. Benisty, A. Müller +123
Young circumstellar disks are of prime interest to understand the physical and chemical conditions under which planet formation takes place. Only very few detections of planet cand…