A search for Doppler imaging targets using the ANU 2.3m telescope

Burton, Donna M. and Carter, Brad D. and De Silva, Gayandhi and Marsden, Stephen C. and Waite, Ian A. (2011) A search for Doppler imaging targets using the ANU 2.3m telescope. In: 2011 Astronomical Society of Australia Annual Science Meeting (ASA 2011) , 4-8 Jul 2011, Adelaide, South Australia.

Abstract

Observations and theory both indicate that magnetic fields play an important role in the early evolution of solar-type stars, but our knowledge of the physical processes involved is hampered by a lack of empirical information. As part of ongoing efforts to use Doppler Imaging (DI) to detail the early magnetic histories of the Sun and solar-type stars, we present the results of a high-resolution spectroscopic survey of young sun-like stars looking for potential DI targets. Our observational survey of some 250 stars was carried out on the 2.3m ANU telescope and its echelle spectrograph at Siding Spring between August 2008 and April 2011, and has identified several potential new targets for DI, with HIP2729 and HIP108422 the most outstanding. Thus, it should be possible to use the 2.3m telescope to Doppler Image young Suns, to clarify the early evolutionary history of dynamos in the Sun and similar stars.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Poster)
Refereed: No
Item Status: Live Archive
Additional Information: Poster 67. Permanent restricted access to published version due to publisher copyright policy.
Depositing User: Ms Donna Burton
Faculty / Department / School: Historic - Faculty of Sciences - No Department
Date Deposited: 01 Jun 2012 02:54
Last Modified: 03 Jul 2013 00:43
Uncontrolled Keywords: stars; doppler imaging; AB Dor; HIP43720
Fields of Research (FOR2008): 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 > 020109 Space and Solar Physics
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
URI: http://eprints.usq.edu.au/id/eprint/19412

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