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Cited by 362

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

QUANTIFYING QUASAR VARIABILITY AS PART OF A GENERAL APPROACH TO CLASSIFYING CONTINUOUSLY VARYING SOURCES

Open access
Kozłowski, Szymon, Kochanek, Christopher S., Udalski, A., Wyrzykowski, Ł., Soszyński, I., Szymański, M. K., Kubiak, M., Pietrzyński, G., Szewczyk, O., Ulaczyk, K., Poleski, R., The OGLE Collaboration·2010·The Astrophysical Journal

Abstract

Robust fast methods to classify variable light curves in large sky surveys are becoming increasingly important. While it is relatively straightforward to identify common periodic stars and particular transient events (supernovae, novae, microlensing events), there is no equivalent for non-periodic continuously varying sources (quasars, aperiodic stellar variability). In this paper, we present a fast method for modeling and classifying such sources. We demonstrate the method using ∼86, 000 variable sources from the OGLE-II survey of the LMC and ∼2700 mid-IR-selected quasar candidates from the OGLE-III survey of the LMC and SMC. We discuss the location of common variability classes in the parameter space of the model. In particular, we show that quasars occupy a distinct region of variability space, providing a simple quantitative approach to the variability selection of quasars.

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Metadata

Authors
Kozłowski, S., Kochanek, C. S., Udalski, A., Wyrzykowski, Ł., Soszyński, I., Szymański, M. K., Kubiak, M., Pietrzyński, G., Szewczyk, O., Ulaczyk, K., Poleski, R., & The OGLE Collaboration
Venue
The Astrophysical Journal
Published
2009-12-16
Volume
708
Issue
2
Pages
927-945
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2044770006
Cited by
362
References
3
FWCI
7.54
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: QUANTIFYING QUASAR VARIABILITY AS PART OF A GENERAL APPROACH TO CLASSIFYING CONTINUOUSLY VARYING SOURCES. https://app.cochat.ai/papers/10.1088/0004-637x/708/2/927
The paper
Kozłowski, S., Kochanek, C. S., Udalski, A., Wyrzykowski, Ł., Soszyński, I., Szymański, M. K., Kubiak, M., Pietrzyński, G., Szewczyk, O., Ulaczyk, K., Poleski, R., & The OGLE Collaboration. (2010). QUANTIFYING QUASAR VARIABILITY AS PART OF A GENERAL APPROACH TO CLASSIFYING CONTINUOUSLY VARYING SOURCES. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/708/2/927

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.