Bibcode
DOI
Khalikov, S.; Ehgamberdiev, S.; Marquette, W. ; Goode, P. ; Wang, G.-P. ; Ai, G. ; Rabello-Soares, M. C. ; Jiménez, A.; Tang, H.-T. ; Yeh, S.-J. ; Chen, H.-R.; Chang, H.-K. ; Sun, M.-T. ; TON Team; Chou, D.-Y.; González Hernández, I.; Patrón, J.
Referencia bibliográfica
The Astrophysical Journal, Volume 506, Issue 1, pp. 450-455.
Fecha de publicación:
10
1998
Revista
Número de citas
5
Número de citas referidas
4
Descripción
A ring-diagram analysis technique has been applied to a region of the
Sun of about 15 deg^2 area close to the disk center at dates chosen for
several solar rotations in 1996: April 5, May 1, May 28, June 27, July
23, August 20, August 21, and September 18. The horizontal velocity
flows inferred directly beneath the solar surface have thus been
obtained for the same region of the Sun at the given dates. The data
have been obtained at the Observatorio del Teide and the Tashkent
stations with the Taiwan Oscillation Network (TON), consisting of 1080 x
1080 pixel Ca II K-line intensity images. The stability of the results,
the stability of the method, and the possible temporal evolution of the
subsurface flows have been studied from the results. A rotation curve
for the differential radial solar rotation down to the first 27 Mm of
depth at the equator is also suggested and qualitatively compared to
results obtained by other authors.