MASCARA-2 b: A hot Jupiter transiting the mv=7.6 A-star HD 185603

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  • G. J. J. Talens, Leiden Univ, Leiden University, Leiden Observ
  • ,
  • A. B. Justesen
  • S. Albrecht
  • J. McCormac, Univ Warwick, University of Warwick, Dept Phys
  • ,
  • V. Van Eylen, Leiden Univ, Leiden University, Leiden Observ
  • ,
  • G. P. P. L. Otten, Leiden Univ, Leiden University, Leiden Observ
  • ,
  • F. Murgas, Univ La Laguna, Universidad de la Laguna, Dept Astrofis
  • ,
  • E. Palle, Univ La Laguna, Universidad de la Laguna, Dept Astrofis
  • ,
  • D. Pollacco, Univ Warwick, University of Warwick, Dept Phys
  • ,
  • R. Stuik, Leiden Univ, Leiden University, Leiden Observ
  • ,
  • J. F. P. Spronck, Leiden Univ, Leiden University, Leiden Observ
  • ,
  • A-L Lesage, Leiden Univ, Leiden University, Leiden Observ
  • ,
  • F. Grundahl
  • M. Fredslund Andersen
  • Victoria Antoci
  • I. A. G. Snellen, Leiden Univ, Leiden University, Leiden Observ

In this paper we present MASCARA-2 b, a hot Jupiter transiting the m(v) = 7.6 A2 star HD 185603. Since early 2015, MASCARA has taken more than 1.6 million flux measurements of the star, corresponding to a total of almost 3000 h of observations, revealing a periodic dimming in the flux with a depth of 1.3%. Photometric follow-up observations were performed with the NITES and IAC80 telescopes and spectroscopic measurements were obtained with the Hertzsprung SONG telescope. We find MASCARA-2 b orbits HD 185603 with a period of 3.474119(-0.000006)(+0.000005) days at a distance of 0.057 +/- 0.006 au, has a radius of 1.83 +/- 0.07 R-J and place a 99% upper limit on the mass of

Original languageEnglish
Article number57
JournalAstronomy & Astrophysics
Volume612
Number of pages8
ISSN1432-0746
DOIs
Publication statusPublished - 20 Apr 2018

    Research areas

  • planetary systems, stars: individual: MASCARA-2 (HD 185603, HIP 96618), PLANET-DETECTION, GIANT PLANETS, MISSION, SEARCH, MODEL, LINE, TOMOGRAPHY, EXOPLANETS, TELESCOPE, PRECISION

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