HR: 1340h
AN: SA53B-1181 [Abstracts]
TI: Search for Radio Emissions From Extrasolar Planets at 150 MHz
AU: * Winterhalter, D
EM: Daniel.Winterhalter@jpl.nasa.gov
AF: Jet Propulsion Laboratory, MS 169/506, 4800 Oak Grove Drive, Pasaden, CA 91109-8099
United States
AU: Majid, W A
EM: walid.a.majid@jpl.nasa.gov
AF: Jet Propulsion Laboratory, MS 169/506, 4800 Oak Grove Drive, Pasaden, CA 91109-8099
United States
AU: Kuiper, T B
EM: thomas.kuiper@jpl.nasa.gov
AF: Jet Propulsion Laboratory, MS 169/506, 4800 Oak Grove Drive, Pasaden, CA 91109-8099
United States
AU: Chandra, I
EM: ishwar@ncra.tifr.res.in
AF: National Center for Radio Astrophysics, Post Bag 3, Pune University Campus, Ganeshkhind, Pune, 411007
India
AU: Lazio, J
EM: Joseph.Lazio@nrl.navy.mil
AF: Naval Research Laboratory, 4555 Overlook Ave. SW, Washington, DC 20375-5351
United States
AU: Gupta, Y
EM: ygupta@ncra.tifr.res.in
AF: National Center for Radio Astrophysics, Post Bag 3, Pune University Campus, Ganeshkhind, Pune, 411007
India
AU: Naudet, C J
EM: charles.j.naudet@jpl.nasa.gov
AF: Jet Propulsion Laboratory, MS 169/506, 4800 Oak Grove Drive, Pasaden, CA 91109-8099
United States
AU: Zarka, P
EM: philippe.zarka@obspm.fr
AF: Observatoire de Paris, Lesisa, Meudon, 92195
France
AU: Bryden, G
EM: geoffrey.bryden@jpl.nasa.gov
AF: Jet Propulsion Laboratory, MS 169/506, 4800 Oak Grove Drive, Pasaden, CA 91109-8099
United States
AU: Gonzalez, W
EM: gonzalez@dge.inpe.br
AF: Instituto Nacional de Pesquisas Espaciais, INPE, Sao Jos‚ dos Campos, 000000
Brazil
AB:
Using the new 150 MHz receivers of the Giant Metrewave Radiotelescope (GMRT) in India, we have searched for radio emissions
from a sub-set of known "hot Jupiters": UpsAnd, Tauboo, 70 Vir, HD162020, and HD179949. We have selected these targets based
on the expected flux density and the level of background noise. Calibrations with GMRT at 150 MHz have confirmed the noise
floor to be a few mJy over a 5 MHz bandwidth. The noise floor is well below the expected flux levels from the targets. No
observation of these targets has been attempted previously at these frequencies with the sensitivity and aperture offered by
GMRT.
Radio maps of the targets were produced using the AIPS CLEANing and image making software, and will be presented. Dynamic
spectra from the target regions will also be presented.
In addition to the targets above, we have just (August 2005) completed new and deeper (longer integration times) radio
observations of UpsAnd, HD179949 (evidence of star-planet magenic connection), HD188753Ab (newly discovered in tripple star
system), HD209458b (transiting planet), and Gliese876 (red dwarf system containg "rocky" planet). Time permitting for
analyses, we will present very preliminary, first-look, results.
DE: 6296 Extra-solar planets
DE: 6297 Instruments and techniques
DE: 7534 Radio emissions
DE: 7594 Instruments and techniques
SC: SPA-Aeronomy [SA]
MN: Fall Meeting 2005