The SuperWASP wide-field exoplanetary transit survey:: candidates from fields 23 h < RA < 03 h

被引:53
作者
Christian, D. J. [1 ]
Pollacco, D. L.
Skillen, I.
Street, R. A.
Keenan, F. P.
Clarkson, W. I.
Cameron, A. Collier
Kane, S. R.
Lister, T. A.
West, R. G.
Enoch, B.
Evans, A.
Fitzsimmons, A.
Haswell, C. A.
Hellier, C.
Hodgkin, S. T.
Horne, K.
Irwin, J.
Norton, A. J.
Osborne, J.
Ryans, R.
Wheatley, P. J.
Wilson, D. M.
机构
[1] Queens Univ Belfast, Dept Phys & Astron, Astrophys & Planetary Sci Res Div, Belfast BT7 1NN, Antrim, North Ireland
[2] Isaac Newton Grp Telescope, Tenerife, Spain
[3] Open Univ, Dept Phys & Astron, Milton Keynes MK7 6AA, Bucks, England
[4] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland
[5] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England
[6] Univ Keele, Sch Chem & Phys, Astrophys Grp, Keele ST5 5BG, Staffs, England
[7] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
[8] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
基金
英国科学技术设施理事会;
关键词
methods : data analysis; planetary systems formation; stars : variables : other;
D O I
10.1111/j.1365-2966.2006.10913.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Photometric transit surveys promise to complement the currently known sample of extra-solar planets (ESPs) by providing additional information on the planets and especially their radii. Here, we present ESP candidates from one such survey called, the Wide Angle Search for Planets (WASP) obtained with the SuperWASP wide-field imaging system. Observations were taken with SuperWASP North located in La Palma during the 2004 April to October observing season. The data cover fields between 23 and 03 h in RA at declinations above +12. This amounts to over approximate to 400 000 stars with V magnitudes 8-13.5. For the stars brighter than 12.5, we achieve better than 1 per cent photometric precision. Here, we present 41 sources with low-amplitude variability between approximate to 1 and 10 mmag, from which we select 12 with periods between 1.2 and 4.4 d as the most promising ESP candidates. We discuss the properties of these ESP candidates, the expected fraction of transits recovered for our sample and implications for the frequency and detection of hot-Jupiters.
引用
收藏
页码:1117 / 1128
页数:12
相关论文
共 54 条
  • [1] Bayesian detection of planetary transits - A modified version of the Gregory-Loredo method for Bayesian periodic signal detection
    Aigrain, S
    Favata, F
    [J]. ASTRONOMY & ASTROPHYSICS, 2002, 395 (02) : 625 - 636
  • [2] TrES-1: The transiting planet of a bright K0V star
    Alonso, R
    Brown, TM
    Torres, G
    Latham, DW
    Sozzetti, A
    Mandushev, G
    Belmonte, JA
    Charbonneau, D
    Deeg, HJ
    Dunham, EW
    O'Donovan, FT
    Stefanik, RP
    [J]. ASTROPHYSICAL JOURNAL, 2004, 613 (02) : L153 - L156
  • [3] The N2K Consortium. IV. New temperatures and metallicities for more than 100,000 FGK dwarfs
    Ammons, SM
    Robinson, SE
    Strader, J
    Laughlin, G
    Fischer, D
    Wolf, A
    [J]. ASTROPHYSICAL JOURNAL, 2006, 638 (02) : 1004 - 1017
  • [4] ELODIE metallicity-biased search for transiting Hot Jupiters II.: A very hot Jupiter transiting the bright K star HD189733
    Bouchy, F
    Udry, S
    Mayor, M
    Moutou, C
    Pont, F
    Iribarne, NI
    Da Silva, R
    Ilovaisky, S
    Queloz, D
    Santos, NC
    Ségransan, D
    Zucker, S
    [J]. ASTRONOMY & ASTROPHYSICS, 2005, 444 (01) : L15 - L19
  • [5] Doppler follow-up of OGLE transiting companions in the Galactic bulge
    Bouchy, F
    Pont, F
    Melo, C
    Santos, NC
    Mayor, M
    Queloz, D
    Udry, S
    [J]. ASTRONOMY & ASTROPHYSICS, 2005, 431 (03) : 1105 - 1121
  • [6] Two new "very hot Jupiters" among the OGLE transiting candidates
    Bouchy, F
    Pont, F
    Santos, NC
    Melo, C
    Mayor, M
    Queloz, D
    Udry, S
    [J]. ASTRONOMY & ASTROPHYSICS, 2004, 421 (01) : L13 - L16
  • [7] Expected detection and false alarm rates for transiting Jovian planets
    Brown, TM
    [J]. ASTROPHYSICAL JOURNAL, 2003, 593 (02) : L125 - L128
  • [8] BURKE CJ, 2006, UNPUB AJ
  • [9] Catalog of nearby exoplanets
    Butler, R. P.
    Wright, J. T.
    Marcy, G. W.
    Fischer, D. A.
    Vogt, S. S.
    Tinney, C. G.
    Jones, H. R. A.
    Carter, B. D.
    Johnson, J. A.
    McCarthy, C.
    Penny, A. J.
    [J]. ASTROPHYSICAL JOURNAL, 2006, 646 (01) : 505 - 522
  • [10] CAMERON AC, 2006, IN PRESS MNRAS