Host star properties and transit exclusion for the HD 38529 planetary system

Gregory W. Henry, Stephen R. Kane, Sharon X. Wang, Jason Wright, Tabetha S. Boyajian, Kaspar Von Braun, David R. Ciardi, Diana Dragomir, Chris Farrington, Debra A. Fischer, Natalie R. Hinkel, Andrew W. Howard, Eric Jensen, Gregory Laughlin, Suvrath Mahadevan, Genady Pilyavsky

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The transit signature of exoplanets provides an avenue through which characterization of exoplanetary properties may be undertaken, such as studies of mean density, structure, and atmospheric composition. The Transit Ephemeris Refinement and Monitoring Survey is a program to expand the catalog of transiting planets around bright host stars by refining the orbits of known planets discovered with the radial velocity technique. Here we present results for the HD 38529 system. We determine fundamental properties of the host star through direct interferometric measurements of the radius and through spectroscopic analysis. We provide new radial velocity measurements that are used to improve the Keplerian solution for the two known planets, and we find no evidence for a previously postulated third planet. We also present 12 years of precision robotic photometry of HD 38529 that demonstrate the inner planet does not transit and the host star exhibits cyclic variations in seasonal mean brightness with a timescale of approximately six years.

Original languageEnglish (US)
Article number155
JournalAstrophysical Journal
Volume768
Issue number2
DOIs
StatePublished - May 10 2013

Fingerprint

planetary systems
transit
exclusion
planets
planet
stars
radial velocity
atmospheric composition
refining
spectroscopic analysis
extrasolar planets
robotics
velocity measurement
catalogs
photometry
brightness
signatures
timescale
orbits
radii

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Henry, G. W., Kane, S. R., Wang, S. X., Wright, J., Boyajian, T. S., Von Braun, K., ... Pilyavsky, G. (2013). Host star properties and transit exclusion for the HD 38529 planetary system. Astrophysical Journal, 768(2), [155]. https://doi.org/10.1088/0004-637X/768/2/155
Henry, Gregory W. ; Kane, Stephen R. ; Wang, Sharon X. ; Wright, Jason ; Boyajian, Tabetha S. ; Von Braun, Kaspar ; Ciardi, David R. ; Dragomir, Diana ; Farrington, Chris ; Fischer, Debra A. ; Hinkel, Natalie R. ; Howard, Andrew W. ; Jensen, Eric ; Laughlin, Gregory ; Mahadevan, Suvrath ; Pilyavsky, Genady. / Host star properties and transit exclusion for the HD 38529 planetary system. In: Astrophysical Journal. 2013 ; Vol. 768, No. 2.
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Henry, GW, Kane, SR, Wang, SX, Wright, J, Boyajian, TS, Von Braun, K, Ciardi, DR, Dragomir, D, Farrington, C, Fischer, DA, Hinkel, NR, Howard, AW, Jensen, E, Laughlin, G, Mahadevan, S & Pilyavsky, G 2013, 'Host star properties and transit exclusion for the HD 38529 planetary system', Astrophysical Journal, vol. 768, no. 2, 155. https://doi.org/10.1088/0004-637X/768/2/155

Host star properties and transit exclusion for the HD 38529 planetary system. / Henry, Gregory W.; Kane, Stephen R.; Wang, Sharon X.; Wright, Jason; Boyajian, Tabetha S.; Von Braun, Kaspar; Ciardi, David R.; Dragomir, Diana; Farrington, Chris; Fischer, Debra A.; Hinkel, Natalie R.; Howard, Andrew W.; Jensen, Eric; Laughlin, Gregory; Mahadevan, Suvrath; Pilyavsky, Genady.

In: Astrophysical Journal, Vol. 768, No. 2, 155, 10.05.2013.

Research output: Contribution to journalArticle

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