The Data Big Bang and the Expanding Digital Universe: High‐Dimensional, Complex and Massive Data Sets in an Inflationary Epoch [PDF]
Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010 Recent and forthcoming advances in instrumentation, and giant new surveys, are creating astronomical data sets that are not amenable to the methods of analysis familiar to astronomers. Traditional methods are often inadequate not merely because of the size in bytes of the data sets, but also because of the complexity of modern data sets.
Meyer Z. Pesenson +3 more
wiley +6 more sources
Some statistical and computational challenges, and opportunities in astronomy [PDF]
, 2004 The data complexity and volume of astronomical findings have increased in recent decades due to major technological improvements in instrumentation and data collection methods.
Babu, G. Jogesh, Djorgovski, S. George
core +1 more source
Orbital parameters, masses and distance to Beta Centauri determined with the Sydney University Stellar Interferometer and high resolution spectroscopy [PDF]
, 2004 The bright southern binary star beta Centauri (HR 5267) has been observed with the Sydney University Stellar Interferometer (SUSI) and spectroscopically with the ESO CAT and Swiss Euler telescopes at La Silla.
A. J. Booth +43 more
core +9 more sources
Using R-based VOStat as a low resolution spectrum analysis tool [PDF]
, 2007 We describe here an online software suite VOStat written mainly for the Virtual Observatory, a novel structure in which astronomers share terabyte scale data. Written mostly in the public-domain statistical computing language and environment R, it can do
Babu, Jogesh G., Mahabal, Ashish A.
core +2 more sources
Systematic search for gamma-ray periodicity in active galactic nuclei detected by the Fermi Large Area Telescope [PDF]
, 2020 We use nine years of gamma-ray data provided by the Fermi Large Area Telescope (LAT) to systematically study the light curves of more than two thousand active galactic nuclei (AGN) included in recent Fermi-LAT catalogs. Ten different techniques are used,
Ajello, M. +10 more
core +3 more sources
Genetic Algorithm Modeling with GPU Parallel Computing Technology [PDF]
, 2012 We present a multi-purpose genetic algorithm, designed and implemented with GPGPU / CUDA parallel computing technology. The model was derived from a multi-core CPU serial implementation, named GAME, already scientifically successfully tested and ...
Brescia, Massimo +5 more
core +2 more sources
The Astronomical Journal, 2023 Classification of galaxy morphology is a challenging but meaningful task for the enormous amount of data produced by the next-generation telescope.
GuanWen Fang +10 more
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 By applying our previously developed two-step scheme for galaxy morphology classification, we present a catalog of galaxy morphology for H -band-selected massive galaxies in the COSMOS-DASH field, which includes 17,292 galaxies with stellar mass M _ ...
Yao Dai +8 more
doaj +1 more source
Fast Algorithms and Efficient Statistics: N-point Correlation Functions [PDF]
, 2000 We present here a new algorithm for the fast computation of N-point correlation functions in large astronomical data sets. The algorithm is based on kdtrees which are decorated with cached sufficient statistics thus allowing for orders of magnitude speed-
Alex Gray +11 more
core +4 more sources
The Accelerations of Stars Orbiting the Milky Way's Central Black Hole [PDF]
, 2000 Recent measurements, of the velocities of stars near the center of the Milky Way have provided the strongest evidence for the presence of a supermassive black hole in a galaxy, but the observational uncertainties poorly constrain many of the properties ...
A Eckart +22 more
core +3 more sources