Impact of Low-Frequency p Modes on the Inversions of the Internal Rotation of the Sun

Bibcode
2009ASPC..416..253S
Salabert, D.; Eff-Darwich, A.; Howe, R.; Korzennik, S. G.
Bibliographical reference

Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21 ASP Conference Series, Vol. 416, proceedings of a conference held 11-15 August 2008 at the High Altitude Observatory, Boulder, Colorado, USA. Edited by Mausumi Dikpati, Torben Arentoft, Irene González Hernández, Charles Lindsey, and Frank Hill. San Francisco: Astronomical Society of the Pacific, 2009., p.253

Advertised on:
12
2009
Number of authors
4
IAC number of authors
0
Citations
1
Refereed citations
0
Description
We used the m-averaged spectrum technique ("collapsogram") to extract the low-frequency solar p-mode parameters of low- and intermediate-angular degrees (l ≤ 35) in long time series of Global Oscillation Network Group (GONG) and Michelson Doppler Imager (MDI) observations. Rotational splittings and central frequencies have been measured down to ≍850 μHz, including predicted modes which have not been measured previously. Both GONG and MDI frequency splitting data sets were numerically inverted to extract the internal solar rotation rate. The impact of the very low-frequency observables and the differences between GONG and MDI data sets on the inversion results are also analyzed.
Type
Non-refereed

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