SEARCH FOR RADIO EMISSIONS FROM EXTRASOLAR PLANETS
Similar to what has been observed from Jupiter, strong stellar winds
and impulsive events on stars are believed to cause non-thermal radio
emissions from their planets in the 10 to 1000 MHz range. A study
is proposed to estimate the radio emission characteristics of a
suitable sub-set of known
extrasolar planets, and develop a strategy to carry out observations
with the goal to detect one of them. The strategy will be
implemented with an observation run(s) mid-2004 at a yet to be
determined low frequency array (funded separately, via other
sources). The workshop is to be held at ISSI, with one meeting (1
week) in March of 2004, and a follow-up meeting (1 week) after the
observations in the late 2004 or spring of 2005.
The major goals of meeting 1 is to:
Meeting 2 will discuss the results of the observations, after some
analysis of the data has been accomplished. The proposed workshop
will be attended by experts in radio astronomy, solar wind/planet
interactions, and extrasolar planet searches. Depending on the
overall return from this effort, a publication such as an ISSI series
book detailing the results and observational method, is
envisioned. A publication is particularly important in view of
the planned LOFAR array, which is to come on line in the 2006-7 time
- Discuss the underlying physics of planetary radio emissions
(Proximity to primary; Star/stellar wind type; Planetary magnetic
field, etc.), and decide on methods to estimate signal emission
strength and frequency.
- Develop an observation strategy – Pick a suitable set of targets
from a list of extrasolar planets
- Determine which radio array(s) are most suitable for the
observations, and how to access them.
The team is comprised of researcher active in the fields of radio
and visual astronomy, planetary formation, and solar wind/planet
* Daniel Winterhalter (Lead), Jet Propulsion Laboratory, Caltech, USA, (firstname.lastname@example.org).
* Geoffrey Bryden, Jet Propulsion Laboratory, Caltech, USA, (email@example.com).
* C. H. Ishwara Chandra, National Centre for Radio Astrophysics, India (firstname.lastname@example.org).
William Farrell, NASA/Goddart Space Flight Center, USA (email@example.com).
* Walter Gonzalez, Instituto Nacional de Pesquisas Espaciais, Brazil (firstname.lastname@example.org).
Samuel Gulkis, Jet Propulsion Laboratory, Caltech, USA (email@example.com).
Marc Kuchner, Princeton University, USA (firstname.lastname@example.org).
Thomas Kuiper, Jet Propulsion Laboratory, Caltech, USA (Thomas.Kuiper@jpl.nasa.gov).
Joseph Lazio, Naval Research Laboratory, USA (Joseph.Lazio@nrl.navy.mil).
Alain Lecacheux, Observatoire de Paris, Nancay France (Alain.Lecacheux@obspm.fr).
Boris Ryabov, Institute of Radio Astronomy, Ukraine (email@example.com).
* Rudolf Treumann, Max-Planck Institute for Extraterrestrial
Physics, Germany, (firstname.lastname@example.org).
Stephane Udry, Observatoire de Genève, Switzerland (email@example.com).
Russel White, California Institute of Technology, USA (firstname.lastname@example.org).
Harold Yorke, Jet Propulsion Laboratory, Caltech, USA (email@example.com).
* Philippe Zarka, Observatoire de Paris, Meudon, France (firstname.lastname@example.org).
(* Denotes attendee of meeting 1.)
Report of Meeting 1