output
19932026
most citedFirst M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

4.3k citations

Showing 2013Show all

123 papers · 1 filter

astro-ph.SR2013★ 34 cited

Deriving Metallicities from Calcium Triplet Spectroscopy in combination with Near Infrared Photometry

F. Mauro, C. Moni Bidin, D. Geisler +7

Context. [...] One of the most efficient methods is the measurement of the equivalent width (EW) of the Calcium II Triplet (CaT), corrected for the luminosity and temperature effec…

astro-ph.EP2013★ 9 cited

New Method to Measure Proper Motions of Microlensed Sources: Application to Candidate Free-Floating-Planet Event MOA-2011-BLG-262

Jan Skowron, Andrzej Udalski, Michał K Szymański +9

We develop a new method to measure source proper motions in microlensing events, which can partially overcome problems due to blending. It takes advantage of the fact that the sour…

astro-ph.GA2013★ 47 cited

The Gaia-ESO Survey: Abundance ratios in the inner-disk open clusters Trumpler 20, NGC 4815, NGC 6705

L. Magrini, S. Randich, D. Romano +50

Open clusters are key tools to study the spatial distribution of abundances in the disk and their evolution with time. Using the first release of stellar parameters and abundances…

astro-ph.SR2013★ 49 cited

The Gaia-ESO Survey: Reevaluation of the parameters of the open cluster Trumpler 20 using photometry and spectroscopy

P. Donati, T. Cantat-Gaudin, A. Bragaglia +34

Trumpler 20 is an old open cluster (OC) located toward the Galactic centre, at about 3 kpc from the Sun and 7 kpc from the Galactic centre. Its position makes this cluster pa…

astro-ph.EP2013★ 22 cited

MOA-2008-BLG-379Lb: A Massive Planet from a High Magnification Event with a Faint Source

D. Suzuki, A. Udalski, T. Sumi +31

We report analysis of high microlensing event MOA-2008-BLG-379, which has a strong microlensing anomaly at its peak, due to a massive planet with a mass ratio of q = 6.9 x 10^{-3}.…

astro-ph.HE2013★ 34 cited

The unusual multiwavelength properties of the gamma-ray source PMNJ1603-4904

Cornelia Müller, M. Kadler, R. Ojha +27

We investigate the nature and classification of PMNJ1603-4904, a bright radio source close to the Galactic plane, which is associated with one of the brightest hard-spectrum gamma-…