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Published November 26, 2020 | Version 1.1.0
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maserlib/ExPRES: Version 1.1.0

Authors/Creators

  • 1. DIAS, Dublin, Ireland
  • 2. ONERA
  • 3. LESIA, Observatoire de Paris-PSL, CNRS, SU, UP
  • 4. DIO, Observatoire de Paris-PSL

Description

ExPRES (Exoplanetary and Planetary Radio Emission Simulator) reproduces the occurrence of CMI-generated radio emissions from planetary magnetospheres, exoplanets or star-planet interacting systems in time-frequency plane, with special attention given to computation of the radio emission beaming at and near its source. Physical information drawn from such radio observations may include the location and dynamics of the radio sources, the type of current system leading to electron acceleration and their energy and, for exoplanetary systems, the magnetic field strength, the orbital period of the emitting body and the rotation period, tilt and offset of the planetary magnetic field. Most of these parameters can be remotely measured only via radio observations. ExPRES code provides the proper framework of analysis and interpretation for past (Cassini, Voyager, Galileo), current (Juno, ground-based radio telescopes) and future (BepiColombo, Juice) observations of planetary radio emissions, as well as for future detection of radio emissions from exoplanetary systems.

Notes

Change Log for version 1.1.0

  • Documentation:
  • Configuration:
    • SIMU.NAME and SIMU.OUT are not required anymore. SIMU.NAME is curently not used. The SIMU.OUT entry is given by the user in the config.ini file.
    • Adding user-provided frequency list option
    • New configuration option for output CDF: SRCPOS (position of the sources, in cartesian)
    • New configuration option for output CDF: SRCVIS (for each hemisphere, sum of the visible sources)
  • Ephemeris:
    • Adding support for use-provided WebGeoCalc ephemeris files in csv format
    • Updated MIRIADE and WebGeoCalc ephemerides parsing methods (following undocumented webservice API changes)
    • Modification on the User-defined ephemeris: the ephemerides given by the user can be defined to an accuracy of one second
  • Output CDF:
    • Changing the polarization output in cdf file: Polarization variable indicates LH or RH polarization, VisibleSources provides the sum of visible sources for LH and RH polarization.
    • Added Hemisphere_ID_Label variable in output CDF
    • Modified the calculation of CDF output SrcFreqMaxCMI
    • Modification of the CDF outputs if multiple sources
    • Correction of an error on the CDF output time table
  • Other:
    • Modify CDF file output version to: ...._v11.cdf
    • All CDF global attributes are now with type CDF_CHAR
    • Modifying call to MFL (lsh vs. msh, depending on the planet)
    • Added support for M-shell with JRM09 magnetic field model

Files

maserlib/ExPRES-1.1.0.zip

Files (241.6 kB)

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Additional details

Identifiers

URL
http://ascl.net/1902.009

Related works

Is described by
Journal article: 10.1051/0004-6361/201935161 (DOI)
Is new version of
Software: 10.5281/zenodo.4291913 (DOI)

Funding

European Commission
EPN2020-RI - EUROPLANET 2020 Research Infrastructure 654208
European Commission
EPN-2024-RI - Europlanet 2024 Research Infrastructure 871149

Software

Repository URL
https://github.com/maserlib/ExPRES
Programming language
IDL