Results 61 to 70 of about 502 (78)
GRB Progenitor Classification from Gamma-Ray Burst Prompt and Afterglow Observations
The Astrophysical JournalUsing 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
Galaxy and Mass Assembly (GAMA): Stellar-to-dynamical Mass Relation. II. Peculiar Velocities
The Astrophysical JournalEmpirical 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
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Estimating Galaxy Parameters with Self-organizing Maps and the Effect of Missing Data
The Astronomical JournalThe 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
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Deep Learning Improves Photometric Redshifts in All Regions of Color Space
The Astrophysical JournalPhotometric 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
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Data-space Validation of High-dimensional Models by Comparing Sample Quantiles
The Astrophysical Journal Supplement SeriesWe 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
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The Astrophysical Journal Supplement SeriesThe 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
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Gamma-Ray Burst Detection with Poisson-FOCuS and Other Trigger Algorithms
The Astrophysical JournalWe describe how a novel online change-point detection algorithm, called Poisson-FOCuS, can be used to optimally detect gamma-ray bursts within the computational constraints imposed by miniaturized satellites such as the upcoming HERMES-Pathfinder ...
Giuseppe Dilillo +7 more
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Inference for the physical sciences. [PDF]
Philos Trans A Math Phys Eng Sci, 2013 Jones NS, Maccarone TJ.
europepmc +1 more source
A Poisson Process AutoDecoder for X-Ray Sources
The Astrophysical JournalX-ray observing facilities, such as the Chandra X-ray Observatory and the eROSITA, have detected over a million astronomical sources associated with high-energy phenomena.
Yanke Song +3 more
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Straight to the Source: Detecting Aggregate Objects in Astronomical Images with Proper Error Control. [PDF]
J Am Stat Assoc, 2013 Friedenberg DA, Genovese CR.
europepmc +1 more source