Matches in SemOpenAlex for { <https://semopenalex.org/work/W4300385412> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W4300385412 abstract "In Astronomy, the brightness of a source is typically expressed in terms of magnitude. Conventionally, the magnitude is defined by the logarithm of the received flux. This relationship is known as the Pogson formula. For received flux with a small signal to noise ratio (S/N), however, the formula gives a large magnitude error. We investigate whether the use of Inverse Hyperbolic Sine function (after this referred to as the Asinh magnitude) in the modified formulae could allow for an alternative calculation of magnitudes for small S/N flux, and whether the new approach is better for representing the brightness of that region. We study the possibility of increasing the detection level of gravitational microlensing using 40 selected microlensing light curves from 2013 and 2014 season and by using the Asinh magnitude. The photometric data of the selected events is obtained from the Observational Gravitational Lensing Experiment (OGLE). We found that the utilization of the Asinh magnitude makes the events brighter compared to using the logarithmic magnitude, with an average of about $3.42 times10^{-2}$ magnitude and the average of the difference of error between the logarithmic and the Asinh magnitude is about $2.21 times10^{-2}$ magnitude. The microlensing events, OB 140847 and OB 140885 are found to have the largest difference values among the selected events. Using a Gaussian fit to find the peak for OB140847 and OB140885, we conclude statistically that the Asinh magnitude gives better mean squared values of the regression and narrower residual histograms than the Pogson magnitude. Based on these results, we also attempt to propose a limit of magnitude value from which the use of the Asinh magnitude is optimal for small S/N data." @default.
- W4300385412 created "2022-10-03" @default.
- W4300385412 creator A5008911799 @default.
- W4300385412 creator A5020082881 @default.
- W4300385412 creator A5052019352 @default.
- W4300385412 creator A5056027924 @default.
- W4300385412 creator A5062055463 @default.
- W4300385412 creator A5069071305 @default.
- W4300385412 date "2015-12-21" @default.
- W4300385412 modified "2023-09-29" @default.
- W4300385412 title "Statistical Improvement in Detection Level of Gravitational Microlensing Events from their Light Curves" @default.
- W4300385412 doi "https://doi.org/10.48550/arxiv.1512.07206" @default.
- W4300385412 hasPublicationYear "2015" @default.
- W4300385412 type Work @default.
- W4300385412 citedByCount "0" @default.
- W4300385412 crossrefType "posted-content" @default.
- W4300385412 hasAuthorship W4300385412A5008911799 @default.
- W4300385412 hasAuthorship W4300385412A5020082881 @default.
- W4300385412 hasAuthorship W4300385412A5052019352 @default.
- W4300385412 hasAuthorship W4300385412A5056027924 @default.
- W4300385412 hasAuthorship W4300385412A5062055463 @default.
- W4300385412 hasAuthorship W4300385412A5069071305 @default.
- W4300385412 hasBestOaLocation W43003854121 @default.
- W4300385412 hasConcept C105795698 @default.
- W4300385412 hasConcept C121332964 @default.
- W4300385412 hasConcept C125125069 @default.
- W4300385412 hasConcept C125245961 @default.
- W4300385412 hasConcept C126691448 @default.
- W4300385412 hasConcept C1276947 @default.
- W4300385412 hasConcept C130726490 @default.
- W4300385412 hasConcept C134306372 @default.
- W4300385412 hasConcept C135448202 @default.
- W4300385412 hasConcept C150846664 @default.
- W4300385412 hasConcept C188984411 @default.
- W4300385412 hasConcept C191897082 @default.
- W4300385412 hasConcept C192562407 @default.
- W4300385412 hasConcept C2524010 @default.
- W4300385412 hasConcept C26537357 @default.
- W4300385412 hasConcept C33024259 @default.
- W4300385412 hasConcept C33923547 @default.
- W4300385412 hasConcept C39927690 @default.
- W4300385412 hasConcept C44870925 @default.
- W4300385412 hasConcept C50693072 @default.
- W4300385412 hasConcept C68498078 @default.
- W4300385412 hasConcept C68709404 @default.
- W4300385412 hasConcept C98444146 @default.
- W4300385412 hasConcept C99844830 @default.
- W4300385412 hasConceptScore W4300385412C105795698 @default.
- W4300385412 hasConceptScore W4300385412C121332964 @default.
- W4300385412 hasConceptScore W4300385412C125125069 @default.
- W4300385412 hasConceptScore W4300385412C125245961 @default.
- W4300385412 hasConceptScore W4300385412C126691448 @default.
- W4300385412 hasConceptScore W4300385412C1276947 @default.
- W4300385412 hasConceptScore W4300385412C130726490 @default.
- W4300385412 hasConceptScore W4300385412C134306372 @default.
- W4300385412 hasConceptScore W4300385412C135448202 @default.
- W4300385412 hasConceptScore W4300385412C150846664 @default.
- W4300385412 hasConceptScore W4300385412C188984411 @default.
- W4300385412 hasConceptScore W4300385412C191897082 @default.
- W4300385412 hasConceptScore W4300385412C192562407 @default.
- W4300385412 hasConceptScore W4300385412C2524010 @default.
- W4300385412 hasConceptScore W4300385412C26537357 @default.
- W4300385412 hasConceptScore W4300385412C33024259 @default.
- W4300385412 hasConceptScore W4300385412C33923547 @default.
- W4300385412 hasConceptScore W4300385412C39927690 @default.
- W4300385412 hasConceptScore W4300385412C44870925 @default.
- W4300385412 hasConceptScore W4300385412C50693072 @default.
- W4300385412 hasConceptScore W4300385412C68498078 @default.
- W4300385412 hasConceptScore W4300385412C68709404 @default.
- W4300385412 hasConceptScore W4300385412C98444146 @default.
- W4300385412 hasConceptScore W4300385412C99844830 @default.
- W4300385412 hasLocation W43003854121 @default.
- W4300385412 hasOpenAccess W4300385412 @default.
- W4300385412 hasPrimaryLocation W43003854121 @default.
- W4300385412 hasRelatedWork W2007509296 @default.
- W4300385412 hasRelatedWork W2112980025 @default.
- W4300385412 hasRelatedWork W2257646557 @default.
- W4300385412 hasRelatedWork W2782084784 @default.
- W4300385412 hasRelatedWork W2916452214 @default.
- W4300385412 hasRelatedWork W2952236397 @default.
- W4300385412 hasRelatedWork W2963401365 @default.
- W4300385412 hasRelatedWork W2963859850 @default.
- W4300385412 hasRelatedWork W378299971 @default.
- W4300385412 hasRelatedWork W4250115094 @default.
- W4300385412 isParatext "false" @default.
- W4300385412 isRetracted "false" @default.
- W4300385412 workType "article" @default.