Zobrazeno 1 - 10
of 23
pro vyhledávání: '"M. Cristina Rabello-Soares"'
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 143 (2024)
The gradient of rotation in the near-surface shear layer (NSSL) of the Sun provides valuable insights into the dynamics associated with the solar activity cycle and the dynamo. Results obtained with global oscillation mode splittings lack resolution
Externí odkaz:
https://doaj.org/article/b5c64d4896c94c6aa442d72c504097c1
Publikováno v:
The Astronomical Journal. 164:223
We estimated blackbody temperature for 209 flares observed at 69 F-K stars, significantly increasing the number of flare temperature determinations. We used the Blue and Red channels obtained by the 27 cm telescope of the CoRoT satellite at high cade
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4b576629338de5087a0ba28146f1c49
https://doi.org/10.3847/1538-3881/ac90cb
https://doi.org/10.3847/1538-3881/ac90cb
Several attempts have been made to observe whether solar flares excite acoustic modes since Charles Wolff suggested this possibility almost fifty years ago. We look for the impact of flares on the amplitude of solar acoustic modes and other effects t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07190ed6635f41c707c191c1f3e3aabc
Autor:
Eduardo Janot-Pacheco, L. Andrade, Marcelo Emilio, M. Cristina Rabello-Soares, Alan W Pereira, Jéssica M Eidam, James D. Armstrong
We report in this paper spectroscopic and photometric analysis of eight massive stars observed during Campaign 8 of the Kepler/K2 mission from January to March 2016. Spectroscopic data were obtained on these stars at OPD/LNA, Brazil, and their stella
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5399ee84b82bcb70ffeac682a89a8810
http://arxiv.org/abs/1909.12417
http://arxiv.org/abs/1909.12417
Autor:
M. Cristina Rabello Soares
Acoustic mode frequencies obtained by applying spherical harmonic decomposition to HMI, MDI and GONG observations were analysed throughout the solar cycle. Evidence of a deviation from a linear relation with solar radio flux was found indicating a sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44440aed98c2921ef6aa47947536dfe4
We analyze the effect of a sunspot in its quiet surroundings applying a helioseismic technique on almost three years of Helioseismic and Magnetic Imager (HMI) observations obtained during solar cycle 24 to further study the sunspot structure below th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d9591c66f22051295999093b93e7b12
In order to quantify the influence of magnetic fields on acoustic mode parameters and flows in and around active regions, we analyse the differences in the parameters in magnetically quiet regions nearby an active region (which we call `nearby region
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c5f45656e33afbfbdd726656e41da19
Autor:
John Leibacher, Ian W. Roxburgh, Michael Thompson, Hans Kjeldsen, Suzanne Talon, Raphael A. García, M. Cristina Rabello-Soares, Jørgen Christensen-Dalsgaard, A. Crouch, Frank Hill, Allan Sacha Brun, Reza Samadi, Laurent Gizon, Peter De Cat, Timothy R. Bedding, Stéphane Mathis, Jean Pierre Maillard, Jean Pierre Rozelot, Matthias Rempel
Publikováno v:
Proceedings of the International Astronomical Union. 2:491-516
The seismology and physics of localized structures beneath the surface of the Sun takes on a special significance with the completion in 2006 of a solar cycle of observations by the ground-based Global Oscillation Network Group (GONG) and by the inst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5179b4c13573dacb31884713e60ee9bd
https://doi.org/10.1017/s1743921307011635
https://doi.org/10.1017/s1743921307011635
Publikováno v:
Proceedings of the International Astronomical Union. 2:303-306
Stanford's Solar Center, Electrical Engineering Department, and local educators have developed inexpensive Space Weather Monitors that students around the world can use to track solar- and lightning-induced changes to the Earth's ionosphere. Through
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f07600b90868c174a780ec5ef52d5c2
https://doi.org/10.1017/s1743921307007193
https://doi.org/10.1017/s1743921307007193
Publikováno v:
The Astrophysical Journal. 506:450-455
A ring-diagram analysis technique has been applied to a region of the Sun of about 15 deg2 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 Septembe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2172f86f283e1afc785106131eb6af94
https://doi.org/10.1086/306230
https://doi.org/10.1086/306230