Fulltext

Transits against Fainter Stars: The Power of Image Deconvolution

Sackett, Penny D. ; Gillon, Michaël ; Bayliss, Daniel D. R. ; Weldrake, David T. F. ; Tingley, Brandon

In: Proceedings of the International Astronomical Union, 2008, vol. 4, no. S253, p. 55-61

Ajouter à la liste personnelle
    Titre
    • Transits against Fainter Stars: The Power of Image Deconvolution
    Auteur
    • Sackett, Penny D.. Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo, Australia email: Penny.Sackett@anu.edu.au
    • Gillon, Michaël. Observatoire de l'Université de Genève, Switzerland
    • Bayliss, Daniel D. R.. Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo, Australia email: Penny.Sackett@anu.edu.au
    • Weldrake, David T. F.. Harvard-Smithsonian Center for Astrophysics, USA
    • Tingley, Brandon. Instituto de Astrofisica de Canarias, Spain
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Proceedings of the International Astronomical Union, 2008, vol. 4, no. S253, p. 55-61. Cambridge University Press
    Autre version électronique
    Classification
    • Astronomie, Astrophysique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:292986
    Summary
    Compared to bright star searches, surveys for transiting planets against fainter (V = 12-18) stars have the advantage of much higher sky densities of dwarf star primaries, which afford easier detection of small transiting bodies. Furthermore, deep searches are capable of probing a wider range of stellar environments. On the other hand, for a given spatial resolution and transit depth, deep searches are more prone to confusion from blended eclipsing binaries. We present a powerful mitigation strategy for the blending problem that includes the use of image deconvolution and high-resolution imaging. The techniques are illustrated with Lupus-TR-3 and very recent IR imaging with PANIC on Magellan. The results are likely to have implications for the CoRoT and KEPLER missions designed to detect transiting planets of terrestrial size