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HATSouth: A global network of fully automated identical wide-field telescopes

Bakos, Gaspar; Csubry, Z.; Penev, K.; Bayliss, Daniel; Jordan, A.; Afonso, C.; Hartman, J.; Henning, T.; Kovacs, G.; Noyes, R. W.; Beky, B.; Suc, V.; Csak, B.; Conroy, Peter; Zhou, Guyin (George); Sackett, Penny; Schmidt, Brian; Mancini, L.

Description

HATSouth is the world's first network of automated and homogeneous telescopes that is capable of year-round 24 hr monitoring of positions over an entire hemisphere of the sky. The primary scientific goal of the network is to discover and characterize a large number of transiting extrasolar planets, reaching out to long periods and down to small planetary radii. HATSouth achieves this by monitoring extended areas on the sky, deriving high precision light curves for a large number of stars,...[Show more]

dc.contributor.authorBakos, Gaspar
dc.contributor.authorCsubry, Z.
dc.contributor.authorPenev, K.
dc.contributor.authorBayliss, Daniel
dc.contributor.authorJordan, A.
dc.contributor.authorAfonso, C.
dc.contributor.authorHartman, J.
dc.contributor.authorHenning, T.
dc.contributor.authorKovacs, G.
dc.contributor.authorNoyes, R. W.
dc.contributor.authorBeky, B.
dc.contributor.authorSuc, V.
dc.contributor.authorCsak, B.
dc.contributor.authorConroy, Peter
dc.contributor.authorZhou, Guyin (George)
dc.contributor.authorSackett, Penny
dc.contributor.authorSchmidt, Brian
dc.contributor.authorMancini, L.
dc.date.accessioned2015-12-13T22:16:37Z
dc.identifier.issn0004-6280
dc.identifier.urihttp://hdl.handle.net/1885/70952
dc.description.abstractHATSouth is the world's first network of automated and homogeneous telescopes that is capable of year-round 24 hr monitoring of positions over an entire hemisphere of the sky. The primary scientific goal of the network is to discover and characterize a large number of transiting extrasolar planets, reaching out to long periods and down to small planetary radii. HATSouth achieves this by monitoring extended areas on the sky, deriving high precision light curves for a large number of stars, searching for the signature of planetary transits, and confirming planetary candidates with larger telescopes. HATSouth employs six telescope units spread over three prime locations with large longitude separation in the southern hemisphere (Las Campanas Observatory, Chile; HESS site, Namibia; Siding Spring Observatory, Australia). Each of the HATSouth units holds four 0.18 m diameter f=2:8 focal ratio telescope tubes on a common mount producing an 8:2° × 8:2° field of view on the sky, imaged using four 4 K×4 K CCD cameras and Sloan r filters, to give a pixel scale of 3:7″ pixel-1. The HATSouth network is capable of continuously monitoring 128 square arc degrees at celestial positions moderately close to the anti-solar direction. We present the technical details of the network, summarize operations, and present detailed weather statistics for the three sites. Robust operations have meant that on average each of the six HATSouth units has conducted observations on ~500 nights over a 2 years time period, yielding a total of more than 1 million science frames at a 4 minute integration time and observing ~10:65 hr day-1 on average. We describe the scheme of our data transfer and reduction from raw pixel images to trend-filtered light curves and transiting planet candidates. Photometric precision reaches ~6 mmag at 4 minute cadence for the brightest non-saturated stars at r ≈ 10:5. We present detailed transit recovery simulations to determine the expected yield of transiting planets from HATSouth. We highlight the advantages of networked operations, namely, a threefold increase in the expected number of detected planets, as compared to all telescopes operating from the same site.
dc.publisherUniversity of Chicago Press
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0004-6280/ Author can archive pre-print (ie pre-refereeing). Pre-print on author's personal website, repository, scientific social network, arXiv or non-commercial website (Sherpa/Romeo as of 26/9/2018)
dc.sourcePublications of the Astronomical Society of the Pacific
dc.subjectKeywords: Color figures
dc.titleHATSouth: A global network of fully automated identical wide-field telescopes
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume125
dc.date.issued2013
local.identifier.absfor020102 - Astronomical and Space Instrumentation
local.identifier.ariespublicationf5625xPUB2484
local.type.statusSubmitted Version
local.contributor.affiliationBakos, Gaspar, Harvard Smithsonian Center for Astrophysics
local.contributor.affiliationCsubry, Z, Princeton University
local.contributor.affiliationPenev , K, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationBayliss, Daniel, College of Physical and Mathematical Sciences, The Australian National University
local.contributor.affiliationJordan, A, Pontificia Universidad Catolica de Chile
local.contributor.affiliationAfonso, C, Max Planck Institute for Astronomy
local.contributor.affiliationHartman, J, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationHenning, T, Max-Planck-Institut für Astronomie
local.contributor.affiliationKovacs, G, Hungarian Academy of Sciences
local.contributor.affiliationNoyes, R W, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationBeky, B, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationSuc, V, Pontificia Universidad Catolica de Chile
local.contributor.affiliationCsak, B, Max Planck Institute for Astronomy
local.contributor.affiliationConroy, Peter, College of Physical and Mathematical Sciences, The Australian National University
local.contributor.affiliationZhou, Guyin (George), College of Physical and Mathematical Sciences, The Australian National University
local.contributor.affiliationSackett, Penny, College of Physical and Mathematical Sciences, The Australian National University
local.contributor.affiliationSchmidt, Brian, College of Physical and Mathematical Sciences, The Australian National University
local.contributor.affiliationMancini, L, Max Planck Institute for Astronomy
local.identifier.essn1538-3873
local.bibliographicCitation.issue924
local.bibliographicCitation.startpage154
local.bibliographicCitation.lastpage182
local.identifier.doi10.1086/669529
dc.date.updated2016-02-24T08:59:15Z
local.identifier.scopusID2-s2.0-84874231765
local.identifier.thomsonID000315273800004
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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