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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Difference imaging photometry of blended gravitational microlensing events with a numerical kernel
Monthly Notices of the Royal Astronomical Society, Volume 397, No. 4, Year 2009
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Description
The numerical kernel approach to difference imaging has been implemented and applied to gravitational microlensing events observed by the PLANET collaboration. The effect of an error in the source-star coordinates is explored and a new algorithm is presented for determining the precise coordinates of the microlens in blended events, essential for accurate photometry of difference images. It is shown how the photometric reference flux need not be measured directly from the reference image but can be obtained from measurements of the difference images combined with the knowledge of the statistical flux uncertainties. The improved performance of the new algorithm, relative to isis2, is demonstrated. © 2009 The Authors. Journal compilation © 2009 RAS.
Authors & Co-Authors
Albrow, Michael D.
New Zealand, Christchurch
University of Canterbury
Hörne, Keith D.
United Kingdom, St Andrews
University of st Andrews
Bramich, Daniel M.
Spain, Santa Cruz de la Palma
Isaac Newton Group
Fouqué, Pascal
France, Toulouse
Université Fédérale Toulouse Midi-pyrénées
Miller, V. R.
New Zealand, Christchurch
University of Canterbury
Beaulieu, Jean Philippe H.
France, Paris
Institut D’astrophysique de Paris
Coutures, Christian
France, Paris
Institut D’astrophysique de Paris
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Menzies, John W.
South Africa, Cape Town
South African Astronomical Observatory
Williams, Andrew J.
Australia, Bickley
Perth Observatory
Batista, Virginie
France, Paris
Institut D’astrophysique de Paris
Bennett, David P.
United States, Notre Dame
University of Notre Dame
Brillant, Stéphanie
Chile, Santiago
European Southern Observatory Santiago
Cassan, Arnaud
Germany, Heidelberg
Astronomisches Rechen-institut
Dieters, Stefan W.B.
France, Paris
Institut D’astrophysique de Paris
Prester, Dijana Dominis
Croatia, Rijeka
Faculty of Physics, University of Rijeka
Donatowicz, J.
Austria, Vienna
Technische Universität Wien
Greenhill, John G.
Australia, Hobart
University of Tasmania
Kains, Noé
United Kingdom, St Andrews
University of st Andrews
Kane, Stephen R.
United States, Washington, D.c.
National Aeronautics and Space Administration
Kubas, Daniel
Chile, Santiago
European Southern Observatory Santiago
Marquette, Jean Baptiste
France, Paris
Institut D’astrophysique de Paris
Pollard, Karen R.
New Zealand, Christchurch
University of Canterbury
Sahu, Kailash C.
United States, Baltimore
Space Telescope Science Institute
Tsapras, Yiannis
United States, Santa Barbara
Las Cumbres Observatory Global Telescope Network, Inc
United Kingdom, Liverpool
Liverpool John Moores University
Wambsganss, Joachim
Germany, Heidelberg
Astronomisches Rechen-institut
Zub, Marta
Germany, Heidelberg
Astronomisches Rechen-institut
Statistics
Citations: 149
Authors: 26
Affiliations: 18
Identifiers
Doi:
10.1111/j.1365-2966.2009.15098.x
ISSN:
00358711
e-ISSN:
13652966