Zobrazeno 1 - 10
of 15
pro vyhledávání: '"S. M. Jefferies"'
Autor:
M. T. Leist, C. Packham, D. J. V. Rosario, D. A. Hope, A. Alonso-Herrero, E. K. S. Hicks, S. Hönig, L. Zhang, R. Davies, T. Díaz-Santos, O. González-Martín, E. Bellocchi, P. G. Boorman, F. Combes, I. García-Bernete, S. García-Burillo, B. García-Lorenzo, H. Haidar, K. Ichikawa, M. Imanishi, S. M. Jefferies, Á. Labiano, N. A. Levenson, R. Nikutta, M. Pereira-Santaella, C. Ramos Almeida, C. Ricci, D. Rigopoulou, W. Schaefer, M. Stalevski, M. J. Ward, L. Fuller, T. Izumi, D. Rouan, T. Shimizu
Publikováno v:
The Astronomical Journal, Vol 167, Iss 3, p 96 (2024)
The superb image quality, stability, and sensitivity of JWST permit deconvolution techniques to be pursued with a fidelity unavailable to ground-based observations. We present an assessment of several deconvolution approaches to improve image quality
Externí odkaz:
https://doaj.org/article/b67ef29a56634779b1014dac2c621a2c
Publikováno v:
The Astrophysical Journal. 518:L127-L130
Recent calculations by Toutain, Berthomieu, & Provost predict that low-degree p- and g-modes should produce large continuum intensity perturbations close to the solar limb. Analysis of 72 hr of spatially resolved, full-disk, continuum intensity image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bb446cf9e64dfe3e2f2c36bf10f8c93
https://doi.org/10.1086/312076
https://doi.org/10.1086/312076
Autor:
T. Roca Cortés, Pere L. Palle, S. M. Jefferies, G. R. Isaak, R. New, C. P. McLeod, C. Régulo, Yvonne Elsworth
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 242:135-140
Une estimation des largeurs de raies spectrales de faible degre (l=0 et l=1) du mode p de l'oscillation 5 mn solaire est realisee. L'augmentation des largeurs de raie est analysee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4be9c7455e699f1404e3f63bff9e026d
https://doi.org/10.1093/mnras/242.2.135
https://doi.org/10.1093/mnras/242.2.135
Autor:
C. G. Toner, S. M. Jefferies
Publikováno v:
New Eyes to See Inside the Sun and Stars ISBN: 9780792350767
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cab6db41be97454de01feb0b555cf87a
https://doi.org/10.1007/978-94-011-4982-2_13
https://doi.org/10.1007/978-94-011-4982-2_13
Publikováno v:
AIP Conference Proceedings.
This paper describes the design and performance of a solar tracking platform specifically built to capitalize on the outstanding observing conditions available at the geographic South Pole.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5f3ec0f9d216fd91d02dfb48d730819
https://doi.org/10.1063/1.39014
https://doi.org/10.1063/1.39014
Autor:
C. G. Toner, S. M. Jefferies
Publikováno v:
The Astrophysical Journal. 415:852
We present a new method for accurately determining the geometry for full-disk solar intensity images that is insensitive to changes in the observational point spread function. The method exploits the zero-crossing properties of the Fourier transform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c7e69d309169f0b031b818476b7aca0
https://doi.org/10.1086/173207
https://doi.org/10.1086/173207
Autor:
T. Roca Cortés, C. P. McLeod, R. New, S. M. Jefferies, Yvonne Elsworth, H. B. van der Raay, G. R. Isaak, Clara Régulo, Pere L. Palle
Publikováno v:
Advances in Helio-and Asteroseismology ISBN: 9789027726155
Details are given about the operation of a two station network and of a new semi-automatic station which has recently been added. Comparison is made with predicted duty cycles. A possible way of quantifying the sky quality is also given.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8762b7ef0617790818df0af56865c91c
https://doi.org/10.1007/978-94-009-4009-3_103
https://doi.org/10.1007/978-94-009-4009-3_103
Publikováno v:
Advances in Helio-and Asteroseismology ISBN: 9789027726155
An analysis of full disc line of sight velocity data yield line splitting values of the low l-value non-radial modes. Possible variations of the line splitting with the solar cycle are investigated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96ac5a70e5c2a6b90318a7c4ea9df220
https://doi.org/10.1007/978-94-009-4009-3_3
https://doi.org/10.1007/978-94-009-4009-3_3
Publikováno v:
Nuclear Data for Science and Technology ISBN: 9789400971011
The paper describes the measurement and evaluation of thermal and epithermal neutron activation data for fission reactors, including the 2200 ms¯1 activation cross sections, the resonance activation integrals and decay data for the neutron capture p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cf55e1d740a71921bf3f8cdb03b1270
https://doi.org/10.1007/978-94-009-7099-1_149
https://doi.org/10.1007/978-94-009-7099-1_149
Autor:
T. Roca Cortés, H. B. van der Raay, R. New, C. P. McLeod, Pere L. Palle, S. M. Jefferies, C. Régulo, G. R. Isaak
Publikováno v:
Advances in Helio-and Asteroseismology ISBN: 9789027726155
Data obtained at Izana (Tenerife) and Haleakala (Maui), using optical resonant scattering with a potassium vapour cell over the years 1980–84, are used to determine the frequencies of the low l p modes. Possible variation in these frequencies with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66b0aec66ad81600eb4efa29989a9605
https://doi.org/10.1007/978-94-009-4009-3_45
https://doi.org/10.1007/978-94-009-4009-3_45