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The VISTA ZYJHKs Photometric System: Calibration from 2MASS
Carlos González-Fernández, Simon T. Hodgkin, Michael J. Irwin +7
In this paper we describe the routine photometric calibration of data taken with the VIRCAM instrument on the ESO VISTA telescope. The broadband ZYJHKs data are directly calibrated…
The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars
N. R. Tanvir, A. J. Levan, C. Gonzalez-Fernandez +51
We report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced LIGO/V…
A parametric description of the 3D structure of the Galactic Bar/Bulge using the VVV survey
Iulia T. Simion, Vasily Belokurov, Mike Irwin +5
We study the structure of the inner Milky Way using the latest data release of the Vista Variables in Via Lactea (VVV) survey. The VVV is a deep near-infrared, multi-colour photome…
A GMOS-N IFU study of the central H II region in the blue compact dwarf galaxy NGC 4449: Kinematics, Nebular Metallicity and Star-Formation
Nimisha Kumari, Bethan L. James, Mike J. Irwin
We use integral field spectroscopic (IFS) observations from the Gemini North Multi-Object Spectrograph (GMOS-N) to study the central H II region in a nearby blue compact dwarf (BCD…
The Peculiar Globular Cluster Palomar 1 and Persistence in the SDSS-APOGEE Database
Farbod Jahandar, Kim A. Venn, Matthew D. Shetrone +6
The SDSS-III APOGEE DR12 is a unique resource to search for stars beyond the tidal radii of star clusters. We have examined the APOGEE DR12 database for new candidates of the young…