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The N2K Consortium. I. A Hot Saturn Planet Orbiting HD 88133

Fischer, Debra A. and Laughlin, Greg and Butler, Paul and Marcy, Geoff and Johnson, John and Henry, Greg and Valenti, Jeff and Vogt, Steve and Ammons, Mark and Robinson, Sara and Spear, Greg and Strader, Jay and Driscoll, Peter and Fuller, Abby and Johnson, Teresa and Manrao, Elizabeth and McCarthy, Chris and Muñoz, Melesio and Tah, K. L. and Wright, Jason and Ida, Shigeru and Sato, Bun'ei and Toyota, Eri and Minniti, Dante (2005) The N2K Consortium. I. A Hot Saturn Planet Orbiting HD 88133. Astrophysical Journal, 620 (1). pp. 481-486. ISSN 0004-637X. doi:10.1086/426810.

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The N2K ("next 2000") consortium is carrying out a distributed observing campaign with the Keck, Magellan, and Subaru telescopes, as well as the automatic photometric telescopes of Fairborn Observatory, in order to search for short-period gas giant planets around metal-rich stars. We have established a reservoir of more than 14,000 main-sequence and subgiant stars closer than 110 pc, brighter than V = 10.5, and with 0.4 < B - V < 1.2. Because the fraction of stars with planets is a sensitive function of stellar metallicity, a broadband photometric calibration has been developed to identify a subset of 2000 stars with [Fe/H] > 0.1 dex for this survey. We outline the strategy and report the detection of a planet orbiting the metal-rich G5 IV star HD 88133 with a period of 3.41 days, semivelocity amplitude K = 35.7 m s^(-1), and M sin i = 0.29M_J. Photometric observations reveal that HD 88133 is constant on the 3.415 day radial velocity period to a limit of 0.0005 mag. Despite a transit probability of 19.5%, our photometry rules out the shallow transits predicted by the large stellar radius.

Item Type:Article
Related URLs:
URLURL TypeDescription
Fischer, Debra A.0000-0003-2221-0861
Laughlin, Greg0000-0002-3253-2621
Marcy, Geoff0000-0002-2909-0113
Johnson, John0000-0001-9808-7172
Strader, Jay0000-0002-1468-9668
Wright, Jason0000-0001-6160-5888
Minniti, Dante0000-0002-7064-099X
Additional Information:© 2005 American Astronomical Society. Received 2004 September 7; accepted 2004 October 12. Based on observations obtained at the W. M. Keck Observatory, which is operated by the University of California and the California Institute of Technology. Keck time has been granted by NOAO and NASA. We gratefully acknowledge the dedication and support of the Keck Observatory staff. We thank the NOAO and NASA telescope assignment committees for generous allocations of telescope time. We thank the Michaelson Science Center for travel support and support through the KDPA program. G.W. H. acknowledges support from NASA grant NCC5-511 and NSF grant HRD-9706268. We acknowledge support by NASA grant NAG5-75005 (to G. W. M.), NSF grant AST-9988358, NASA grant NAG5-4445 (to S. S. V.), and NASA grant NNG04GKi9G (to G. L.). D. M. is supported by FONDAP 15010003. We are grateful to Sun Microsystems for ongoing support. We thank the anonymous referee for helpful comments. This research has made use of the Simbad database, operated at CDS, Strasbourg, France. The authors extend thanks to those of native Hawaiian ancestry on whose sacred mountain of Mauna Kea we are privileged to be guests. Without their generous hospitality, the Keck observations presented herein would not have been possible.
Funding AgencyGrant Number
Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias (FONDAP)15010003
Sun MicrosystemsUNSPECIFIED
Issue or Number:1
Record Number:CaltechAUTHORS:20130108-141859820
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Official Citation:The N2K Consortium. I. A Hot Saturn Planet Orbiting HD 88133 Debra A. Fischer et al. 2005 ApJ 620 481
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36245
Deposited On:08 Jan 2013 22:43
Last Modified:09 Nov 2021 23:20

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