Microlensing by single black-holes in the Galaxy
The longest microlensing events provide enough information to estimate the mass and distance of the lens. Among hundreds of millions of stars which were monitored for many years by the OGLE project we...
View ArticleFirst year of the Gaia Science Alerts
Since mid 2014 Gaia mission delivers daily millions of observations of the whole sky. Among them we search for transient events, e.g., supernovae, microlensing events, cataclysmic variables, etc. In my...
View ArticleThe NIKA2 instrument, a dual-band kilopixel KID array for millimetric astronomy
NIKA2 (New IRAM KID Array 2) is a camera dedicated to millimeter wave astronomy based upon kilopixel arrays of Kinetic Inductance Detectors (KID). The pathfinder instrument, NIKA, has already shown...
View ArticleProper image subtraction – optimal transient detection, photometry and...
Transient detection and flux measurement via image subtraction stand at the base of time domain astronomy. Due to the varying seeing conditions, the image subtraction process is non-trivial, and...
View ArticleAstroImageJ: Image Processing and Photometric Extraction for Ultra-Precise...
ImageJ is a graphical user interface (GUI) driven, public domain, Java-based, software package for general image processing traditionally used mainly in life sciences fields. The image processing...
View ArticleApodized pupil Lyot coronagraphs for arbitrary apertures. V. Hybrid Shaped...
We introduce a new class of solutions for Apodized Pupil Lyot Coronagraphs (APLC) with segmented aperture telescopes to remove broadband diffracted light from a star with a contrast level of $10^{10}$....
View ArticleCrossing muons in Icecube at highest energy: Cornerstone to neutrino...
Highest energy neutrino events (contained) in cubic km ICECUBE detector resulted in last three years to be as many as $37-2=35$ signals (two of those having been recently discharged); these...
View ArticleFlavor revolution at ICECUBE horizons? [Replacement]
Recently (May-November 2013) highest energy neutrino events have been presented by ICECUBE. Most (21) of all these (28) events are cascades shower whose flux exhibits a sharp hardening respect other...
View ArticleConstraining cosmology and ionization history with combined 21 cm power...
Improvements in current instruments and the advent of next-generation instruments will soon push observational 21 cm cosmology into a new era, with high significance measurements of both the power...
View ArticleThe impact of correlated noise on galaxy shape estimation for weak lensing...
The robust estimation of the tiny distortions (shears) of galaxy shapes caused by weak gravitational lensing in the presence of much larger shape distortions due to the point-spread function (PSF) has...
View ArticleWhy not any tau double bang in Icecube, yet? [Replacement]
High Energy Neutrino Astronomy has been revealed by a sudden change in the flavor composition around maximal energies since three years of recording in ice km detector. However these discover didn' t...
View ArticleUpdate of the China-VO AstroCloud
As the cyber-infrastructure for Astronomical research from Chinese Virtual Observatory (China-VO) project, AstroCloud has been archived solid progresses during the last one year. Proposal management...
View ArticleImplementation and performance of FDPS: A Framework Developing Parallel...
We have developed FDPS (Framework for Developing Particle Simulator), which enables researchers and programmers to develop high-performance parallel particle simulation codes easily. The basic idea of...
View ArticleCHIMERA: a wide-field, multi-color, high-speed photometer at the prime focus...
The Caltech HIgh-speed Multi-color camERA (CHIMERA) is a new instrument that has been developed for use at the prime focus of the Hale 200-inch telescope. Simultaneous optical imaging in two bands is...
View ArticleDensity duct formation in the wake of a travelling ionospheric disturbance:...
Geomagnetically-aligned density structures with a range of sizes exist in the near-Earth plasma environment, including 10-100 km-wide VLF/HF wave-ducting structures. Their small diameters and modest...
View ArticleAugmenting WFIRST Microlensing with a Ground-based Optical Telescope Network
Augmenting the WFIRST microlensing campaigns with intensive observations from a ground-based network of wide-field survey telescopes would have several major advantages. First, it would enable...
View ArticleFirst year of the Gaia Science Alerts [Replacement]
Since mid 2014 Gaia mission delivers daily millions of observations of the whole sky. Among them we search for transient events, e.g., supernovae, microlensing events, cataclysmic variables, etc. In my...
View ArticleThe Ultimate Display
Astronomical images and datasets are increasingly high-resolution and multi-dimensional. The vast majority of astronomers perform all of their visualisation and analysis tasks on low-resolution,...
View ArticleContinuum sources from the THOR survey between 1 and 2 GHz
We carried out a large program with the Karl G. Jansky Very Large Array (VLA): "THOR: The HI, OH, Recombination line survey of the Milky Way". We observed a significant portion of the Galactic plane in...
View ArticleA Method for Selecting M dwarfs with an Increased Likelihood of Unresolved...
Locating ultra-cool companions to M dwarfs is important for constraining low-mass formation models, the measurement of sub-stellar dynamical masses and radii, and for testing ultra-cool evolutionary...
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