Zobrazeno 1 - 10
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pro vyhledávání: '"Penna J"'
Akademický článek
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Autor:
Smart, R. L., Bucciarelli, B., Jones, H. R. A., Marocco, F., Andrei, A. H., Goldman, B., Mendez, R. A., d'Avila, V. A., Burningham, B., Camargo, J. I. B., Crosta, M. T., Daprà, M., Jenkins, J. S., Lachaume, R., Lattanzi, M. G., Penna, J. L., Pinfield, D. J., Neto, D. N. da Silva, Sozzetti, A., Vecchiato, A.
Publikováno v:
2018MNRAS.481.3548S
We present new results from the Parallaxes of Southern Extremely Cool dwarfs program to measure parallaxes, proper motions and multi-epoch photometry of L and early T dwarfs. The observations were made on 108 nights over the course of 8 years using t
Externí odkaz:
http://arxiv.org/abs/1811.00672
Autor:
Jarboe, T. R., Benedett, T. E., Everson, C. J., Hansen, C. J., Hossack, A. C., Morgan, K. D., Nelson, B. A., Penna, J. M., Sutherland, D. A.
Self-organization properties of sustained magnetized plasma are applied to selected solar data to understand solar magnetic fields. Torsional oscillations are speed-up and slow-down bands of the azimuthal flow that correlate with the solar cycle, and
Externí odkaz:
http://arxiv.org/abs/1807.09593
Autor:
Jarboe, T. R., Benedett, T. E., Everson, C. J., Hansen, C. J., Hossack, A. C., Morgan, K. D., Nelson, B. A., Penna, J. M., Sutherland, D. A.
The solar dynamo and the solar Global internal Magnetic Structure (GMS) appear to be a thin ($\sim$2 Mm thick) structure near ($\sim$1 Mm below) the solar surface. Evidence for these properties are found from the amplitude of the torsional oscillatio
Externí odkaz:
http://arxiv.org/abs/1712.01247
Autor:
Marocco, F., Andrei, A. H., Smart, R. L., Jones, H. R. A., Pinfield, D. J., Day-Jones, A. C., Clarke, J. R. A., Sozzetti, A., Lucas, P. W., Bucciarelli, B., Penna, J. L.
We present near-infrared spectroscopy for 52 ultracool dwarfs, including two newly discovered late-M dwarfs, one new late-M subdwarf candidate, three new L and four new T dwarfs. We also present parallaxes and proper motions for 21 of them. Four of t
Externí odkaz:
http://arxiv.org/abs/1309.6525
Autor:
Smart, R. L., Tinney, C. G., Bucciarelli, B., Marocco, F., Abbas, U., Andrei, A., Bernardi, G., Burningham, B., Cardoso, C., Costa, E., Crosta, M. T., Dapra, M., Day-Jones, A., Goldman, B., Jones, H. R. A., Lattanzi, M. G., Leggett, S. K., Lucas, P., Mendez, R., Penna, J. L., Pinfield, D., Smith, L., Sozzetti, A., Vecchiato, A.
The discovery and subsequent detailed study of T dwarfs has provided many surprises and pushed the physics and modeling of cool atmospheres in unpredicted directions. Distance is a critical parameter for studies of these objects to determine intrinsi
Externí odkaz:
http://arxiv.org/abs/1306.4527
Autor:
Andrei, A. H., Souchay, J., Zacharias, N., Smart, R. L., Martins, R. Vieira, Neto, D. N. da Silva, Camargo, J. I. B., Assafin, M., Barache, C., Bouquillon, S., Penna, J. L., Taris, F.
The large number and all-sky distribution of quasars from different surveys, along with their presence in large, deep astrometric catalogs,enables the building of an optical materialization of the ICRS following its defining principles. Namely: that
Externí odkaz:
http://arxiv.org/abs/0907.2403
Autor:
Pefaur Penna, J., Toro, L., Ardiles, L., Badilla, X., Rosatti, P., Tapia, B., Rocca, X., Mur, P., Fernandez, A., Castillo, A., Diaz, C., Elgueta, L., Garcia, F., Müller, H., Mansilla, R.
Publikováno v:
In Kidney International Reports February 2022 7(2) Supplement:S396-S397
Akademický článek
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Autor:
Pefaur Penna, J., Toro, L., Rosati, P., Badilla, X., Ardiles, L., Rocca, X., Valenzuela, M., Mur, P., Boltansky, A., Diaz, C., Tapia, B., Fernandez, A., Ortiz, M., Elgueta, L., Sanchez, J.E.
Publikováno v:
In Kidney International Reports April 2021 6(4) Supplement:S331-S331