The Precise Solar Shape and Its Variability-Reference-Cited by-同舟云学术

The Precise Solar Shape and Its Variability

Published:2012-09-28 Issue:6102 Volume:337 Page:1638-1640
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Kuhn J. R.¹,Bush R.²,Emilio M.³,Scholl I. F.¹

Affiliation:

1. Institute for Astronomy, University of Hawaii, 34 Ohia Ku Street, Pukalani, Maui, HI 96790, USA.

2. Stanford University, Stanford, CA 94305, USA.

3. Observatorio Astronomico–Departamento de Geociencias, Universidade Estadual de Ponta Grossa, Paraná, Brazil.

Abstract

Our Constant Sun The exact shape of the Sun provides information on its internal structure. Based on data obtained by the Helioseismic and Magnetic Imager aboard NASA's Solar Dynamics Observatory, Kuhn et al. (p. 1638 , published online 16 August; see the Perspective by

Gough

) measured the solar shape during a 2-year period in which the Sun evolved from a minimum to a maximum of sunspot activity. Against expectations, the Sun's oblate shape was found to be constant and not to vary with the 11-year solar cycle.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference16 articles.

1. The Sun's Rotation and Relativity

2. The intrinsic visual oblateness of the sun

3. Is the solar oblateness variable? Measurements of 1985

4. High-Precision Measurements of the Solar Diameter and Oblateness by the Solar Disk Sextant (SDS) Experiment

5. A new estimate of the quadrupole moment of the sun

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