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Host Star Properties and Transit Exclusion for the HD 38529 Planetary System

Henry, Gregory W. and Kane, Stephen R. and Wang, Sharon X. and Wright, Jason T. and Boyajian, Tabetha S. and von Braun, Kaspar and Ciardi, David R. and Dragomir, Diana and Farrington, Chris and Fischer, Debra A. and Hinkel, Natalie R. and Howard, Andrew W. and Jensen, Eric and Laughlin, Gregory and Mahadevan, Suvrath and Pilyavsky, Genady (2013) Host Star Properties and Transit Exclusion for the HD 38529 Planetary System. Astrophysical Journal, 768 (2). Art. No. 155. ISSN 0004-637X.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Henry, Gregory W.0000-0003-4155-8513
Kane, Stephen R.0000-0002-7084-0529
Wang, Sharon X.0000-0002-6937-9034
Wright, Jason T.0000-0001-6160-5888
Boyajian, Tabetha S.0000-0001-9879-9313
von Braun, Kaspar0000-0002-5823-4630
Ciardi, David R.0000-0002-5741-3047
Dragomir, Diana0000-0003-2313-467X
Farrington, Chris0000-0001-9939-2830
Fischer, Debra A.0000-0003-2221-0861
Hinkel, Natalie R.0000-0003-0595-5132
Howard, Andrew W.0000-0001-8638-0320
Jensen, Eric0000-0002-4625-7333
Laughlin, Gregory0000-0002-3253-2621
Mahadevan, Suvrath0000-0001-9596-7983
Additional Information:© 2013 American Astronomical Society. Received 2013 February 11; accepted 2013 March 18; published 2013 April 25. The Center for Exoplanets and Habitable Worlds is supported by the Pennsylvania State University, the Eberly College of Science, and the Pennsylvania Space Grant Consortium. S.R.K. and N.R.H. acknowledge financial support from the National Science Foundation through grant AST-1109662. G.W.H. acknowledges support from NASA, NSF, Tennessee State University, and the State of Tennessee through its Centers of Excellence program. The HET is a joint project of the University of Texas at Austin, the Pennsylvania State University, Stanford University, Ludwig-Maximilians-Universität München, and Georg-August-Universität Göttingen. The HET is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Tennessee State UniversityUNSPECIFIED
State of Tennessee Centers of Excellence programUNSPECIFIED
Subject Keywords:planetary systems; stars: individual (HD 38529); techniques: photometric; techniques: radial velocities
Issue or Number:2
Record Number:CaltechAUTHORS:20130531-102802166
Persistent URL:
Official Citation:Host Star Properties and Transit Exclusion for the HD 38529 Planetary System Gregory W. Henry et al. 2013 ApJ 768 155
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38726
Deposited By: Jason Perez
Deposited On:03 Jun 2013 14:49
Last Modified:13 Dec 2019 03:42

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