A procedure for the inversion of f-mode travel times for solar flows

被引：11

作者：

Jackiewicz, J. ^{[1
]}

Gizon, L.

Birch, A. C.

Thompson, M. J.

机构：

[1] Max Planck Inst Sonnensystemforsch, D-37191 Katlenburg Lindau, Germany

[2] NWRA, CoRA Div, Boulder, CO 80301 USA

[3] Univ Sheffield, Dept Appl Math, Sheffield S3 7RH, S Yorkshire, England

来源：

ASTRONOMISCHE NACHRICHTEN | 2007年 / 328卷 / 3-4期

关键词：

Sun : helioseismolog; Sun : convection;

D O I：

10.1002/asna.200610725

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a two-dimensional inversion of f-mode travel times to determine near-surface solar flows. The inversion is based on optimally localized averaging of travel times. We use finite-wavelength travel-time sensitivity functions and a realistic model of the data errors. We find that it is possible to obtain a spatial resolution of 2 Mm. The error in the resulting flow estimate ultimately depends on the observation time and the number of travel distances used in the inversion. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：234 / 239

页数：6

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