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High precision ground-based CCD photometry from the Next Generation Transit Survey

Bayliss, Daniel and O'Brien, Sean M. and Bryant, Edward and Wheatley, Peter J and West, Richard and McCormac, James and Chote, Paul and Gill, Samuel and Anderson, David R. and Wise, Adam and Juvan-Beaulieu, Ines and Coates, Colin and Gillen, Edward and Smith, Alexis M. S. and Jenkins, James S. and Moyano, Maximiliano and Alves, Douglas R. and Burleigh, Matthew R. and Goad, Michael R. and Casewell, Sarah L. and Acton, Jack S and Tilbrook, Rosanna L. and Henderson, Beth A. and Kendall, Alicia (2022) High precision ground-based CCD photometry from the Next Generation Transit Survey. In: Proceedings of SPIE - The International Society for Optical Engineering, 12191, 121911A. X-Ray, Optical, and Infrared Detectors for Astronomy X, Montréal, Québec, Canada. doi: 10.1117/12.2628966. ISSN 0277-786X.

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Official URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12191/2628966/High-precision-ground-based-CCD-photometry-from-the-Next-Generation/10.1117/12.2628966.full

Abstract

The Next Generation Transit Survey (NGTS) has now been operating for six years, discovering and characterizing transiting exoplanets around bright stars. We outline the NGTS project, including the Andor CCD cameras used to perform high-precision time-series photometry. We quantify the photometric precision for a sample of over 20,000 bright star observations. We find for single NGTS telescope observations we achieve a 30-minute photometric precision of 400 ppm at low airmass. This is in good agreement with the photometric noise predicted using a four-component noise model. We find that the photometric noise for bright stars (G < 12) is dominated by atmospheric scintillation. We also present details of the NGTS multi-telescope observing mode, whereby 12 telescopes can be used simultaneously on a single target star to achieve a 30-minute photometric precision of 100 ppm. Finally, we describe a new generation scientific CMOS camera that we will be testing on-sky at the NGTS facility to determine if it can compete with state-of-the-art CCD cameras used for high precision bright star photometry.

Item URL in elib:https://elib.dlr.de/189093/
Document Type:Conference or Workshop Item (Speech)
Title:High precision ground-based CCD photometry from the Next Generation Transit Survey
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bayliss, DanielUniversity of Warwick, Department of Physics, Gibbet Hill Road, Coventry, CV4 7AL, UKUNSPECIFIED
O'Brien, Sean M.Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, UKUNSPECIFIED
Bryant, EdwardUniversity College LondonUNSPECIFIED
Wheatley, Peter JDept. of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
West, RichardUniversity of Warwick, Department of PhysicsUNSPECIFIED
McCormac, JamesDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Chote, PaulDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Gill, SamuelCentre for Exoplanets and Habitability, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UK Dept. of Physics, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Anderson, David R.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Wise, AdamAndor Technology Ltd.UNSPECIFIED
Juvan-Beaulieu, InesAndor Technology Ltd.UNSPECIFIED
Coates, ColinAndor Technology Ltd.UNSPECIFIED
Gillen, EdwardAstronomy Unit, Queen Mary University of London, Mile End Road, London E1 4NS, UKUNSPECIFIED
Smith, Alexis M. S.UNSPECIFIEDhttps://orcid.org/0000-0002-2386-4341
Jenkins, James S.Departamento de Astronomia, Universidad de Chile, Casilla 36-D, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, Santiago, ChileUNSPECIFIED
Moyano, MaximilianoInstituto de Astronomía, Universidad Católica del Norte , Angamos 0610, 1270709 Antofagasta, ChileUNSPECIFIED
Alves, Douglas R.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, ChileUNSPECIFIED
Burleigh, Matthew R.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Goad, Michael R.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Casewell, Sarah L.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Acton, Jack SSchool of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UKUNSPECIFIED
Tilbrook, Rosanna L.School of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UKUNSPECIFIED
Henderson, Beth A.School of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UKUNSPECIFIED
Kendall, AliciaSchool of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UKUNSPECIFIED
Date:2022
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:12191
DOI:10.1117/12.2628966
Page Range:121911A
ISSN:0277-786X
Status:Published
Keywords:exoplanets ccd photometry
Event Title:X-Ray, Optical, and Infrared Detectors for Astronomy X
Event Location:Montréal, Québec, Canada
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project PLATO - PMC and Science
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Smith, Dr Alexis M S
Deposited On:31 Oct 2022 14:39
Last Modified:31 Oct 2022 14:39

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