Towards optimization of pulsed sodium laser guide stars
Pulsed sodium laser guide stars (LGS) are useful because they allow for Rayleigh blanking and fratricide avoidance in multiple-LGS systems. Bloch-equation simulations of sodium-light interactions show...
View ArticleSensitivity bias in the mass-radius distribution from Transit Timing...
Motivated by recent discussions, both in private and in the literature, we use a Monte Carlo simulation of planetary systems to investigate sources of bias in determining the mass-radius distribution...
View ArticleMeasurement of Muon Annual Modulation and Muon-Induced Phosphorescence in...
We report the measurement of muons and muon-induced phosphorescence in DM-Ice17, a NaI(Tl) direct detection dark matter experiment at the South Pole. Muons are identified by the observed pulse shape...
View ArticleReconstruction of Chirp Mass in the Search of Compact Binaries [Replacement]
Excess energy method is used in searches of gravitational waves (GWs) produced from sources with poorly modeled characteristics. It identifies GW events by searching for a coincidence appearance of...
View ArticleLow radioactivity argon dark matter search results from the DarkSide-50...
The DarkSide-50 dark matter search reports the first results obtained using a target of low-radioactivity argon extracted from underground sources. The experiment is located at the Laboratori Nazionali...
View ArticleA Sparse Gaussian Process Framework for Photometric Redshift Estimation...
Accurate photometric redshifts are a lynchpin for many future experiments to pin down the cosmological model and for studies of galaxy evolution. In this study, a novel sparse regression framework for...
View ArticleSpectro-photometric distances to stars: a general-purpose Bayesian approach...
We developed a code that estimates distances to stars using measured spectroscopic and photometric quantities. We employ a Bayesian approach to build the probability distribution function over stellar...
View ArticlePSR B0329+54: Scattering Structures on Two Scales Observed with RadioAstron...
We studied the scattering properties of pulsar PSR B0329+54 with the RadioAstron ground-space radio interferometer. The instrument included the 10-m Space Radio Telescope, the 110-m Green Bank...
View ArticleHow to Calculate Molecular Column Density [Replacement]
The calculation of the molecular column density from molecular spectral (rotational or ro-vibrational) transition measurements is one of the most basic quantities derived from molecular spectroscopy....
View ArticleAttaining Doppler Precision of 10 cm/s with a Lock-In Amplified Spectrometer
We explore the radial velocity performance benefits of coupling starlight to a fast-scanning interferometer and a fast-readout spectrometer with zero readout noise. By rapidly scanning an...
View ArticleGhost in the time series: no planet for Alpha Cen B
We re-analyse the publicly available radial velocity (RV) measurements for Alpha Cen B, a star hosting an Earth-mass planet candidate, Alpha Cen Bb, with 3.24 day orbital period. We demonstrate that...
View ArticleAn integrative approach based on probabilistic modelling and statistical...
This paper describes several applications in astronomy and cosmology that are addressed using probabilistic modelling and statistical inference.
View ArticleAn Investigation of Collisions between Fiber Positioning Units in LAMOST
The arrangement of the fiber positioning units in LAMOST focal plane may lead to the collisions during the fiber allocation. To avoid these collisions, the soft protection system has to abandon some...
View ArticleA Note on the Overall Magnification of a Gravitational...
The total magnification due to a point lens has been of particular interest as the theorem that gravitational lensing results in light amplification for all observers appears to contradict the...
View ArticleTechnique of Polarimetric Observations of Faint Objects at the 6-m BTA Telescope
We describe the technique of spectropolarimetric observations allowing for the measurements of the Stokes parameters in one of the observational modes of the SCORPIO focal reducer of the 6-m BTA...
View ArticleIceCube-Gen2 – The Next Generation Neutrino Observatory at the South Pole:...
Papers submitted to the 34th International Cosmic Ray Conference (ICRC 2015, The Hague) by the IceCube-Gen2 Collaboration.
View ArticlePeriodic transit and variability search with simultaneous systematics...
By using subsets of the HATNet and K2 (Kepler two-wheel) Campaign 1 databases, we examine the effectiveness of filtering out systematics from photometric time series while simultaneously searching for...
View ArticleModeling Astrophysical Explosions with Sustained Exascale Computing
Our understanding of stars and their fates is based on coupling observations to theoretical models. Unlike laboratory physicists, we cannot perform experiments on stars, but rather must patiently take...
View ArticleLow radioactivity argon dark matter search results from the DarkSide-50...
The DarkSide-50 dark matter search reports the first results obtained using a target of low-radioactivity argon extracted from underground sources. The experiment is located at the Laboratori Nazionali...
View ArticleHDFITS: porting the FITS data model to HDF5 [Replacement]
The FITS (Flexible Image Transport System) data format has been the de facto data format for astronomy-related data products since its inception in the late 1970s. While the FITS file format is widely...
View Article