A planet in a circular orbit with a 6 year period

Carter, Brad D. ORCID: https://orcid.org/0000-0003-0035-8769 and Butler, R. Paul and Tinney, C. G. and Jones, Hugh R. A. and Marcy, Geoffrey W. and McCarthy, Chris and Fischer, Debra A. and Penny, Alan J. (2003) A planet in a circular orbit with a 6 year period. The Astrophysical Journal Letters, 593 (1). L43-L46. ISSN 2041-8205

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Abstract

Precision Doppler velocity measurements from the 3.9 m Anglo-Australian Telescope reveal a planet with a 6 yr period orbiting the G5 dwarf HD 70642. The a = 3.3 AU orbit has a low eccentricity (e = 0.1), and the minimum (M sin i) mass of the planet is 2.0MJUP. The host star is metal-rich relative to the Sun, similar to most stars with known planets. The distant and approximately circular orbit of this planet makes it a member of the rarest group to emerge from precision Doppler surveys.

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Item Type:	Article (Commonwealth Reporting Category C)
Refereed:	Yes
Item Status:	Live Archive
Additional Information:	Published version made accessible, in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre:	Historic - Faculty of Sciences - Department of Biological and Physical Sciences (Up to 30 Jun 2013)
Faculty/School / Institute/Centre:	Historic - Faculty of Sciences - Department of Biological and Physical Sciences (Up to 30 Jun 2013)
Date Deposited:	11 Oct 2007 01:17
Last Modified:	12 May 2017 06:00
Uncontrolled Keywords:	planetary systems; HD 70642
Fields of Research (2008):	02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020102 Astronomical and Space Instrumentation 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020108 Planetary Science (excl. Extraterrestrial Geology)
Fields of Research (2020):	51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems 51 PHYSICAL SCIENCES > 5199 Other physical sciences > 519999 Other physical sciences not elsewhere classified 51 PHYSICAL SCIENCES > 5199 Other physical sciences > 519999 Other physical sciences not elsewhere classified
Socio-Economic Objectives (2008):	E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI:	https://doi.org/10.1086/378185
URI:	http://eprints.usq.edu.au/id/eprint/2957

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