Results 31 to 40 of about 16,732,055 (288)

Applications of multiple DBMSs and algorithms for time-domain astronomy

open access: yes, 2019
We present results of using multiple database management systems and algorithms in processing and analyzing time-domain astronomy data. Redis is adopted as our main in-memory spatial data storage for processing time-domain alerts. We also use Google's S2 geometry algorithm and its library to generate light curve products in out time-domain observation ...
Shin, Min-Su (4953388), Shin, Min-Su
openaire   +2 more sources

AMPEL: A framework for reproducible time-domain astronomy

open access: yes, 2022
Reproducibility, a core principle of science, is close to impossible to achieve in its strict sense in time-domain astronomy - we cannot redo an observation of a transient event once it is gone. Related features such as provenance and analysis reproducibility is further challenged by fractured software development, heterogeneous data sources and an ...
Nordin, Jakob
openaire   +2 more sources

Challenges and Opportunities for Machine Learning in Time-Domain Astronomy

open access: yesProceedings of the International Astronomical Union, 2017
AbstractThe recent spectacular progress in machine learning and artificial intelligence opens up exciting opportunities for time-domain and transient astronomy. This talk outlined the fundamental challenges that we will need to overcome in order to realise that potential, from discovering completely new classes to fully-automated follow-up campaigns.
B. Bassett
semanticscholar   +2 more sources

Tracking the Enigmatic Globular Cluster Ultracompact X-Ray Binary X1850–087: Extreme Radio Variability in the Hard State

open access: yesThe Astrophysical Journal, 2023
The conditions under which accreting neutron stars launch radio-emitting jets and/or outflows are still poorly understood. The ultracompact X-ray binary X1850–087, located in the globular cluster NGC 6712, is a persistent atoll-type X-ray source that has
Teresa Panurach   +8 more
doaj   +1 more source

Online Classification for Time-Domain Astronomy [PDF]

open access: yes2013 IEEE 13th International Conference on Data Mining Workshops, 2013
The advent of synoptic sky surveys has spurred the development of techniques for real-time classification of astronomical sources in order to ensure timely follow-up with appropriate instruments. Previous work has focused on algorithm selection or improved light curve representations, and naively convert light curves into structured feature sets ...
Kitty K. Lo   +3 more
openaire   +3 more sources

Is the M81 Fast Radio Burst Host Globular Cluster Special?

open access: yesThe Astrophysical Journal Letters, 2023
We use multiband archival Hubble Space Telescope (HST) observations to measure the photometric and structural parameters of the M81 globular cluster (GC) that hosts the fast radio burst FRB 20200120E. Our best-fitting King model has an effective radius r
Kristen C. Dage   +7 more
doaj   +1 more source

Gravitational Waves and Time-Domain Astronomy [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
AbstractThe gravitational-wave window onto the universe will open in roughly five years, when Advanced LIGO and Virgo achieve the first detections of high-frequency gravitational waves, most likely coming from compact binary mergers. Electromagnetic follow-up of these triggers, using radio, optical, and high energy telescopes, promises exciting ...
Centrella, Joan   +2 more
openaire   +2 more sources

Evidence for Multiple Shocks from the γ-Ray Emission of RS Ophiuchi

open access: yesThe Astrophysical Journal, 2023
In 2021 August, the Fermi Large Area Telescope, H.E.S.S., and MAGIC detected GeV and TeV γ -ray emission from an outburst of recurrent nova RS Ophiuchi. This detection represents the first very high-energy γ -rays observed from a nova, and it opens a new
Rebecca Diesing   +6 more
doaj   +1 more source

FALCO: Foundation Model of Astronomical Light Curves for Time Domain Astronomy. Implementation and Applications on Kepler Data [PDF]

open access: yesAstronomical Journal
Time-domain surveys have advanced astronomical research by revealing diverse variable phenomena, from stellar flares to transient events. The scale and complexity of survey data, along with the demand for rapid classification, present significant ...
Xiaoxiong Zuo   +16 more
semanticscholar   +1 more source

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