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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005890naa a2200637 4500
001oai:lup.lub.lu.se:3dd6cbda-295a-4cbe-8f9a-e0493f5a3321
003SwePub
008201222s2020 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/3dd6cbda-295a-4cbe-8f9a-e0493f5a33212 URI
0247 a https://doi.org/10.1093/mnras/staa22852 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Tempel, E.u University of Tartu4 aut
2451 0a An optimized tiling pattern for multiobject spectroscopic surveys : Application to the 4MOST survey
264 c 2020-08-05
264 1b Oxford University Press (OUP),c 2020
300 a 18 s.
520 a Large multiobject spectroscopic surveys require automated algorithms to optimize their observing strategy. One of the most ambitious upcoming spectroscopic surveys is the 4MOST survey. The 4MOST survey facility is a fibre-fed spectroscopic instrument on the VISTA telescope with a large enough field of view to survey a large fraction of the southern sky within a few years. Several Galactic and extragalactic surveys will be carried out simultaneously, so the combined target density will strongly vary. In this paper, we describe a new tiling algorithm that can naturally deal with the large target density variations on the sky and which automatically handles the different exposure times of targets. The tiling pattern is modelled as a marked point process, which is characterized by a probability density that integrates the requirements imposed by the 4MOST survey. The optimal tilling pattern with respect to the defined model is estimated by the tiles configuration that maximizes the proposed probability density. In order to achieve this maximization a simulated annealing algorithm is implemented. The algorithm automatically finds an optimal tiling pattern and assigns a tentative sky brightness condition and exposure time for each tile, while minimizing the total execution time that is needed to observe the list of targets in the combined input catalogue of all surveys. Hence, the algorithm maximizes the long-term observing efficiency and provides an optimal tiling solution for the survey. While designed for the 4MOST survey, the algorithm is flexible and can with simple modifications be applied to any other multiobject spectroscopic survey.
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a methods: miscellaneous
653 a surveys
653 a techniques: miscellaneous
7001 a Tuvikene, T.u University of Tartu4 aut
7001 a Muru, M. M.u University of Tartu4 aut
7001 a Stoica, R. S.u University of Lorraine4 aut
7001 a Bensby, T.u Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science4 aut0 (Swepub:lu)astr-tbe
7001 a Chiappini, C.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a Christlieb, N.u Heidelberg University4 aut
7001 a Cioni, M. R.L.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a Comparat, J.u Max Planck Institute for Extraterrestrial Physics4 aut
7001 a Feltzing, S.u Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science4 aut0 (Swepub:lu)astr-sfe
7001 a Hook, I.u Lancaster University4 aut
7001 a Koch, A.u Heidelberg University4 aut
7001 a Kordopatis, G.u University of Côte d'Azur,Côte d'Azur Observatory4 aut
7001 a Krumpe, M.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a Loveday, J.u University of Sussex4 aut
7001 a Minchev, I.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a Norberg, P.u Durham University4 aut
7001 a Roukema, B. F.u Claude Bernard University Lyon 1,Nicolaus Copernicus University4 aut
7001 a Sorce, J. G.u Claude Bernard University Lyon 1,Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a Storm, J.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a Swann, E.u University of Portsmouth4 aut
7001 a Taylor, E. N.u Swinburne University of Technology4 aut
7001 a Traven, G.u Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science4 aut0 (Swepub:lu)gr0220tr
7001 a Walcher, C. J.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7001 a De Jong, R. S.u Leibniz Institute for Astrophysics Potsdam (AIP)4 aut
7102 a University of Tartub University of Lorraine4 org
7730 t Monthly Notices of the Royal Astronomical Societyd : Oxford University Press (OUP)g 497:4, s. 4626-4643q 497:4<4626-4643x 0035-8711x 1365-2966
8564 u http://dx.doi.org/10.1093/mnras/staa2285y FULLTEXT
8564 u http://dro.dur.ac.uk/31959/1/31959.pdf
8564 8u https://lup.lub.lu.se/record/3dd6cbda-295a-4cbe-8f9a-e0493f5a3321
8564 8u https://doi.org/10.1093/mnras/staa2285

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