Results 41 to 50 of about 78 (56)

Singular Spectrum Analysis of Exoplanetary Transits

open access: yesThe Astronomical Journal
Transit photometry is currently the most efficient and sensitive method for detecting extrasolar planets (exoplanets) and a large majority of confirmed exoplanets have been detected with this method.
Hossein Fatheddin, Sedighe Sajadian
doaj   +1 more source

GRB Progenitor Classification from Gamma-Ray Burst Prompt and Afterglow Observations

open access: yesThe Astrophysical Journal
Using an established classification technique, we leverage standard observations and analyses to predict the progenitors of gamma-ray bursts (GRBs). This technique, utilizing support vector machine statistics, provides a more nuanced prediction than the ...
P. Nuessle, J. L. Racusin, N. E. White
doaj   +1 more source

Estimating Galaxy Parameters with Self-organizing Maps and the Effect of Missing Data

open access: yesThe Astronomical Journal
The current and upcoming large data volume galaxy surveys require the use of machine-learning techniques to maximize their scientific return. This study explores the use of Self-Organizing Maps (SOMs) to estimate galaxy parameters with a focus on ...
Valentina La Torre   +6 more
doaj   +1 more source

Deep Learning Improves Photometric Redshifts in All Regions of Color Space

open access: yesThe Astrophysical Journal
Photometric redshifts (photo- z ’s) are crucial for the cosmology, galaxy evolution, and transient science drivers of next-generation imaging facilities like the Euclid Mission, the Vera C.
Emma R. Moran   +3 more
doaj   +1 more source

Galaxy and Mass Assembly (GAMA): Stellar-to-dynamical Mass Relation. II. Peculiar Velocities

open access: yesThe Astrophysical Journal
Empirical correlations connecting starlight to galaxy dynamics (e.g., the fundamental plane (FP) of elliptical/quiescent (Q) galaxies and the Tully–Fisher relation of spiral/star-forming (SF) galaxies) provide cosmology-independent distance estimation ...
M. Burak Dogruel   +9 more
doaj   +1 more source

Inference for the physical sciences. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2013
Jones NS, Maccarone TJ.
europepmc   +1 more source

Data-space Validation of High-dimensional Models by Comparing Sample Quantiles

open access: yesThe Astrophysical Journal Supplement Series
We present a simple method for assessing the predictive performance of high-dimensional models directly in data space when only samples are available.
Stephen Thorp   +5 more
doaj   +1 more source

The CatSouth Quasar Candidate Catalog for the Southern Sky and a Unified All-sky Catalog Based on Gaia DR3

open access: yesThe Astrophysical Journal Supplement Series
The Gaia DR3 has provided a large sample of more than 6.6 million quasar candidates with high completeness but low purity. Previous work on the CatNorth quasar candidate catalog has shown that including external multiband data and applying machine ...
Yuming Fu   +14 more
doaj   +1 more source

PLANETARY CANDIDATES OBSERVED BY Kepler. VIII. A FULLY AUTOMATED CATALOG WITH MEASURED COMPLETENESS AND RELIABILITY BASED ON DATA RELEASE 25. [PDF]

open access: yesAstrophys J Suppl Ser, 2018
Thompson SE   +61 more
europepmc   +1 more source

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