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The VMC Survey. XVIII. Radial dependence of the low-mass, 0.55--0.82 stellar mass function in the Galactic globular cluster 47 Tucanae
Chaoli Zhang, Chengyuan Li, Richard de Grijs +12
We use near-infrared observations obtained as part of the {\sl Visible and Infrared Survey Telescope for Astronomy} (VISTA) Survey of the Magellanic Clouds (VMC), as well as two co…
The VMC survey - XVII. The proper motion of the Small Magellanic Cloud and of the Milky Way globular cluster 47 Tucanae
Maria-Rosa L. Cioni, Kenji Bekki, Leo Girardi +8
In this study we use multi-epoch near-infrared observations from the VISTA survey of the Magellanic Cloud system (VMC) to measure the proper motion of different stellar populations…
New quasars behind the Magellanic Clouds. Spectroscopic confirmation of near-infrared selected candidates
Valentin D. Ivanov, Maria-Rosa L. Cioni, Kenji Bekki +7
Quasi--stellar objects (quasars) located behind nearby galaxies provide an excellent absolute reference system for astrometric studies, but they are difficult to identify because o…
Meridional variation in tropospheric methane on Titan observed with AO spectroscopy at Keck and VLT
Máté Ádámkovics, Jonathan L. Mitchell, Alexander G. Hayes +10
The spatial distribution of the tropospheric methane on Titan was measured using near-infrared spectroscopy. Ground-based observations at 1.5 (H-band) were performed duri…
The VMC survey - XVI. Spatial variation of the cluster-formation activity in the innermost regions of the Large Magellanic Cloud
Andrés E. Piatti, Richard de Grijs, Vincenzo Ripepi +6
We present results based on photometry of star clusters in the Large Magellanic Cloud (LMC), distributed throughout the central part of the galaxy's bar and the 30 Do…
The structure and dynamics of the AC114 galaxy cluster revisited
Dominique Proust, Irina Yegorova, Ivo Saviane +4
We present a dynamical analysis of the galaxy cluster AC114 based on a catalogue of 524 velocities. Of these, 169 (32%) are newly obtained at ESO (Chile) with the VLT and the VIMOS…