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New Photometric Pipeline To Explore Temporal And Spatial Variability With Kmtnet Deep-South Observations

Chang, Seo-Won; Byun, Yongik; Shin, Min-Su; Yi, Hahn; Kim, Myung-Jin; Moon, Hong-Kyu; Choi, Young-Jun; Cha, Sang-Monk; Lee, Yongseok

Description

The DEEP-South (the Deep Ecliptic Patrol of the Southern Sky) photometric census of small Solar System bodies produces massive time-series data of variable, transient or moving objects as a by-product. To fully investigate unexplored variable phenomena, we present an application of multi-aperture photometry and FastBit indexing techniques for faster access to a portion of the DEEP-South year-one data. Our new pipeline is designed to perform automated point source detection, robust...[Show more]

dc.contributor.authorChang, Seo-Won
dc.contributor.authorByun, Yongik
dc.contributor.authorShin, Min-Su
dc.contributor.authorYi, Hahn
dc.contributor.authorKim, Myung-Jin
dc.contributor.authorMoon, Hong-Kyu
dc.contributor.authorChoi, Young-Jun
dc.contributor.authorCha, Sang-Monk
dc.contributor.authorLee, Yongseok
dc.date.accessioned2020-10-26T00:54:32Z
dc.identifier.issn1225-4614
dc.identifier.urihttp://hdl.handle.net/1885/213051
dc.description.abstractThe DEEP-South (the Deep Ecliptic Patrol of the Southern Sky) photometric census of small Solar System bodies produces massive time-series data of variable, transient or moving objects as a by-product. To fully investigate unexplored variable phenomena, we present an application of multi-aperture photometry and FastBit indexing techniques for faster access to a portion of the DEEP-South year-one data. Our new pipeline is designed to perform automated point source detection, robust high-precision photometry and calibration of non-crowded fields which have overlap with previously surveyed areas. In this paper, we show some examples of catalog-based variability searches to find new variable stars and to recover targeted asteroids. We discover 21 new periodic variables with period ranging between 0.1 and 31 days, including four eclipsing binary systems (detached, over-contact, and ellipsoidal variables), one white dwarf/M dwarf pair candidate, and rotating variable stars. We also recover astrometry (< +/- 1-2 arcsec level accuracy) and photometry of two targeted near-earth asteroids, 2006 DZ169 and 1996 SK, along with the small- (similar to 0.12 mag) and relatively large-amplitude (similar to 0.5 mag) variations of their dominant rotational signals in R-band.
dc.format.mimetypeapplication/pdf
dc.language.isoen_AU
dc.publisherAstronomical Society of Korea
dc.rights© 2018. The Korean Astronomical Society
dc.sourceJournal of the Korean Astronomical Society
dc.titleNew Photometric Pipeline To Explore Temporal And Spatial Variability With Kmtnet Deep-South Observations
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume51
dc.date.issued2018
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.absfor020199 - Astronomical and Space Sciences not elsewhere classified
local.identifier.absfor080306 - Open Software
local.identifier.ariespublicationu3102795xPUB2526
local.publisher.urlhttp://koreascience.or.kr/
local.type.statusPublished Version
local.contributor.affiliationChang, Seo-Won, College of Science, ANU
local.contributor.affiliationByun, Yongik, Yonsei University
local.contributor.affiliationShin, Min-Su, Korea Astronomy and Space Science Institute
local.contributor.affiliationYi, Hahn, Yonsei University
local.contributor.affiliationKim, Myung-Jin, Korea Astronomy and Space Science Institute
local.contributor.affiliationMoon, Hong-Kyu, Korea Astronomy and Space Science Institute
local.contributor.affiliationChoi, Young-Jun, Korea Astronomy and Space Science Institute
local.contributor.affiliationCha, Sang-Monk, Korea Astronomy and Space Science Institute
local.contributor.affiliationLee, Yongseok, Korea Astronomy and Space Science Institute
local.description.embargo2037-12-31
local.bibliographicCitation.issue5
local.bibliographicCitation.startpage129
local.bibliographicCitation.lastpage142
local.identifier.doi10.5303/JKAS.2018.51.5.129
local.identifier.absseo970108 - Expanding Knowledge in the Information and Computing Sciences
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2020-07-06T08:21:06Z
local.identifier.thomsonIDWOS:000455083800001
CollectionsANU Research Publications

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