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FSR 1716: A new Milky Way Globular Cluster confirmed using VVV RR Lyrae stars
(2017-03-24)
We use deep multi-epoch near-IR images of the VISTA Variables in the V\'ia L\'actea (VVV) Survey to search for RR Lyrae stars towards the Southern Galactic plane. Here we report the discovery of a group of RR Lyrae stars ...
A population of eruptive variable protostars in VVV
(2017-03-01)
We present the discovery of 816 high amplitude infrared variable stars (Delta Ks >1 mag) in 119 deg^2 of the Galactic midplane covered by the Vista Variables in the Via Lactea (VVV) survey. Almost all are new discoveries ...
Infrared spectroscopy of eruptive variable protostars from VVV
(2017-03-01)
In a companion work (Paper I) we detected a large population of highly variable Young Stellar Objects (YSOs) in the Vista Variables in the Via Lactea (VVV) survey, typically with class I or flat spectrum spectral energy ...
Production Uncertainties of p-Nuclei in the γ-Process in Massive Stars Using a Monte Carlo Approach
(2017-02-28)
Proton-rich nuclei, the so-called p-nuclei, are made in photodisintegration processes in outer shells of massive stars in the course of the final supernova explosion. Nuclear uncertainties in the production of these nuclei ...
Impacts of nuclear-physics uncertainty in stellar temperatures on the s-process nucleosynthesis
(The Physical Society of Japan, 2017-02-28)
We evaluated the uncertainty relevant to s-process nucleosynthesis using a Monte-Carlo centred approach. We are based on a realistic and general prescription of temperature dependent uncertainty for the reactions. We ...
VVV High proper motion stars I. The catalogue of bright Ks stars
(2017-01-01)
Knowledge of the stellar content near the Sun is important for a broad range of topics ranging from the search for planets to the study of Milky Way structure. The most powerful method for identifying potentially nearby ...
Uncertainties in the production of p nuclei in massive stars obtained from Monte Carlo variations
(2016-12-21)
Nuclear uncertainties in the production of $p$ nuclei in massive stars have been quantified in a Monte Carlo procedure. Bespoke temperature-dependent uncertainties were assigned to different types of reactions involving ...
Highly variable young massive stars in ATLASGAL clumps
(2016-12-05)
High-amplitude variability in Young Stellar Objects (YSOs) is usually associated with episodic accretion events. It has not been observed so far in massive YSOs. Here, the high-amplitude variable star sample of ContrerasPena ...
MagAO Imaging of Long-period Objects (MILO). II. A Puzzling White Dwarf around the Sun-like Star HD 11112
(2016-11-10)
HD 11112 is an old, Sun-like star that has a long-term radial velocity (RV) trend indicative of a massive companion on a wide orbit. Here we present direct images of the source responsible for the trend using the Magellan ...
The Herschel-ATLAS Data Release 1 Paper II : Multi-wavelength counterparts to submillimetre sources
(2016-10-21)
This paper is the second in a pair of articles presenting data release 1 (DR1) of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS), the largest single open-time key project carried out with the Herschel ...