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helioseismology and asteroseismology in Antarctica
Entry ID: helioseismol-asteroseismol

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Summary
Abstract: At the University of Rome we have prepared two MOFs (Magneto-Optical Filters),
one working with Potassium vapors (779 nm spectral line) and the other working
with Sodium (589 nm). The two spectral lines bring information about two
different levels of the solar atmosphere. Doppler images taken simultaneously
for few days at the South Pole in collaboration with Dr Stuart Jefferies have
enabled us to determine for the first time the physical conditions, pixel by
pixel, of the solar atmosphere through the propagation time of high frequency
pressure waves . This result was possible also thanks to the financial support
of the National Science Foundation . At Terra Nova Bay, the Rome group has
operated a Potassium MOF during the Antarctic Campaign of 1999. Thanks to the
published results, we could initiate the South Pole collaboration. The 1999
data are available from our Group in Rome. The South Pole data are available on
the web.

Related URL
Link: GET DATA
Description: Stanford Helioseismology Archive


Geographic Coverage
 N: -74.69 S: -74.69  E: 164.1  W: 164.1
 Min Altitude: 0M  Max Altitude: 0M

Data Set Citation
Online Resource: http://sha.stanford.edu/


Temporal Coverage
Start Date: 2003-12-01
Stop Date: 2004-02-29

Start Date: 1999-02-01
Stop Date: 1999-02-20


Location Keywords
OCEAN > SOUTHERN OCEAN > TERRA NOVA BAY
GEOGRAPHIC REGION > POLAR
GEOGRAPHIC REGION > SOUTHERN HEMISPHERE


Science Keywords
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >SOLAR IMAGERY    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >SOLAR OSCILLATIONS    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER


Quality
The raw data have been preprocessed (registered and summed/differentiated) to
get intensity and doppler images for successive Fourier analysis.


Use Constraints
Reference the origin


Keywords
(PACS) Oscillations and waves; helioseismology
(PACS) Stars
Solar Doppler fields versus time


Data Set Progress
COMPLETE


Data Center
Dipartimento di Fisica, Universita degli Studi di Roma 'La Sapienza', Rome, Italy    [Information]
Data Center URL: http://www.phys.uniroma1.it/

Data Center Personnel
Name: ALESSANDRO CACCIANI
Phone: +39 06 49914462
Fax: +39 06 4957697
Email: Alessandro.Cacciani at roma1.infn.it
Contact Address:
Dipartimento di Fisica
Universita degli Studi di Roma "La Sapienza"
Piazzale Aldo Moro 2
City: Rome
Postal Code: I-00185
Country: ITALY



Distribution
Distribution_Format: FITS
Fees: Freely available on the internet



Creation and Review Dates
DIF Creation Date: 2005-12-14
Last DIF Revision Date: 2016-01-27



Link to Web Site