Results 51 to 60 of about 1,451 (127)

GRB 021004: Tomography of a gamma-ray burst progenitor and its host galaxy [PDF]

, 2010
We analyse the distribution of matter around the progenitor star of gamma-ray burst GRB 021004 as well as the properties of its host galaxy with high-resolution echelle as well as near-infrared spectroscopy. Observations were taken by the 8.2m Very Large
A. de Ugarte Postigo, A. J. Castro-Tirado, A. S. Fruchter, Barraud, Berger, Bersier, Björnsson, Bloom, Boroson, C. Kouveliotou, Castor, Castro, Castro-Tirado, Chen, Christensen, D'Elia, D. A. Kann, D. Barrado, de Koter, de Ugarte Postigo, de Ugarte Postigo, Dessauges-Zavadsky, E. P. J. van den Heuvel, E. Palazzi, E. Pian, E. Pérez, E. Rol, E. Solano, Fiore, Fox, Fox, Fynbo, G. García-Segura, García-Segura, Gehrels, Gorosabel, Gruendl, H. Pedersen, Hjorth, Holland, Humphreys, J. Gorosabel, J. Greiner, J. Hjorth, J. M. Castro Cerón, J. P. U. Fynbo, Jakobsson, Jensen, Kann, Kann, Kennicutt, Klose, Langer, Langer, Lazzati, Lazzati, M. I. Andersen, Maeder, Matheson, Metzger, Mirabal, Møller, Møller, Møller, N. Masetti, N. R. Tanvir, P. M. Vreeswijk, P. Møller, Pandey, Prochaska, Prochaska, R. A. M. J. Wijers, S. Klose, Salvaterra, Sargent, Schaefer, Smith, Srianand, Stanek, Starling, Tanvir, Tanvir, Tejos, Tejos, Tenorio-Tagle, Thöne, Uemura, Vergani, Vreeswijk, Woosley, Woosley   +90 more
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The planetary system host HR\,8799: On its $\lambda$ Bootis nature [PDF]

, 2010
HR\,8799 is a $\lambda$ Bootis, $\gamma$ Doradus star hosting a planetary system and a debris disk with two rings. This makes this system a very interesting target for asteroseismic studies.
A. García Hernández, A. Moya, Aerts, Alexander, B. Montesinos, Balona, Bate, Bayo, Bruntt, Casas, Casas, Chen, Chlebowski, Christensen-Dalsgaard, Claret, Crawford, Crawford, Cuypers, D. Barrado, Decressin, Dupret, Dziembowski, F. Aceituno, Fabrycky, Garrido, Gizon, Gray, Gray, Grevesse, Grigahcène, Guzik, Handler, Hauck, Iglesias, Kamp, Kaye, Kaye, Kurucz, Lebreton, Lee, M. Aberasturi, Marois, Mathis, Mathis, Miglio, Morel, Morgan, Moya, Moya, Moya, Moya, Moya, Moya, P. J. Amado, Paunzen, Paunzen, Paunzen, Philip, Reidemeister, Rodríguez, Rodríguez, Rodríguez, Rogers, Sadakane, Sbordone, Schuster, Smeyers, Soufi, Su, Suárez, Suárez, Tassoul, Townsend, Turcotte, Van Leeuwen, Venn, Watson, Zahn, Zerbi   +78 more
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Capacidad de vuelo de organismos alados en densidad atmosférica y aceleración de la gravedad variables

Revista de Investigación de Física
El presente trabajo usa las fuerzas de sustentación, de arrastre y la alometría del vuelo para organismos alados voladores en condiciones donde la densidad atmosférica y la aceleración de la gravedad son diferentes a la terrestre. En las fórmulas, estos
Ivan Meza-Velez
doaj   +1 more source

La Tierra vista como exoplaneta

Revista Mexicana de Ciencias Geológicas, 2014
La Tierra, como único ejemplo de planeta habitable, nos da los primeros elementos para caracterizar el espectro de planetas de tipo terrestre alrededor de otras estrellas que podrían ser detectados en el transcurso de la próxima década gracias a misiones
Antígona Segura
doaj  

Caracterização de habitabilidade exoplanetária: cálculo de distâncias de zonas habitáveis e análise espectral [PDF]

, 2017
Anais do VI Encontro de Iniciação Científica e II Encontro Anual de Iniciação ao Desenvolvimento Tecnológico e Inovação – EICTI 2017 - 04 a 06 de outubro de 2017 - temática Coências Exatas e da TerraA ciência exoplanetária, ramo da Astrobiologia, é um ...
Capistrano, Abraão J. de Souza, Penagos Mendez, Joyce   +1 more
core  

Age determination of the HR8799 planetary system using asteroseismology

, 2010
Discovery of the first planetary system by direct imaging around HR8799 has made the age determination of the host star a very important task. This determination is the key to derive accurate masses of the planets and to study the dynamical stability of ...
A. García Hernández, A. Moya, B. Montesinos, Bayo, Casas, Casas, Chen, Claret, D. Barrado, Dupret, F. Aceituno, Gray, Grevesse, Grigahcène, Guzik, Kaye, Lebreton, M. Aberasturi, Marois, Miglio, Morel, Moya, Moya, Moya, Moya, Moya, Moya, Moór, P. J. Amado, Paunzen, Pont, Reidemeister, Rhee, Rodríguez, Rodríguez, Schuster, Smeyers, Soderblom, Song, Su, Suárez, Turcotte, Van Leeuwen, Zerbi, Zuckerman   +44 more
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Actividad estelar en estrellas con planetas a partir de espectros de CASLEO [PDF]

, 2013
Analizamos la actividad a largo plazo de un conjunto de 7 estrellas con planetas tipo J´upiter cercanos (0,40MJ < Mp < 11MJ y a < 1 UA) a partir del ´ındice de Mount Wilson (S).
Buccino, Andrea Paola, Flores, Matías, Gonzalez, Federico, Mauas, Pablo Jacobo David, Saffe, Carlos   +4 more
core   +1 more source

Sensitivity of the g-mode frequencies to pulsation codes and their parameters

, 2010
From the recent work of the Evolution and Seismic Tools Activity (ESTA, Lebreton et al. 2006; Monteiro et al. 2008), whose Task 2 is devoted to compare pulsational frequencies computed using most of the pulsational codes available in the asteroseismic ...
A. Jiménez, A. Moya, A. Moya, A. Moya, A. Moya, A. Zaatri, A.H. Gabriel, A.H. Gabriel, A.M. Serenelli, C. Frohlich, E. Rodríguez, E. Rodríguez, E.A. Spiegel, H. Hill, H. Shibahashi, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J.N. Bahcall, J.W. Harvey, K. Belkacem, M. Asplund, M. Asplund, M.J. Thompson, M.J.P.F.G. Monteiro, N. Grevesse, P. Morel, P.L. Pallé, R. A. García, R.A. García, R.A. García, R.A. García, R.A. García, R.A. García, S. Basu, S. Couvidat, S. Mathis, S. Mathis, S. Mathur, S. Mathur, S. Mathur, S. Turck-Chièze, S. Turck-Chièze, S. Turck-Chièze, T. Appourchaux, W. Unno, W.J. Chaplin, W.J. Chaplin, Y. Lebreton   +47 more
core   +1 more source

The low-mass diskless population of Corona Australis [PDF]

, 2010
We combine published optical and near-infrared photometry to identify new low-mass candidate members in an area of about 0.64 deg^2 in Corona Australis with the S-parameter method. Five new candidate members of the region are selected.
Barrado y Navascués, D., Bouy, H., Eislöffel, J., López Martí, B., Merín, B., Morales-Calderón, M., Spezzi, L.   +6 more
core   +2 more sources

Understanding sub-stellar populations using wide-field infrared surveys [PDF]

, 2011
This paper discusses benchmark brown dwarfs in various environments, and focuses on those in wide binary systems. We present a summary of the recently discovered T dwarf population from the UKIDSS Large Area Survey, and describe the constraints that it ...
Barrado, D., Beaumont, H., Burningham, B., Day-Jones, A. C., Deacon, N. R., Dupuy, Trent J., Hewett, P., Homeier, Derek, Huelamo, N., Ishi, M., Jones, H. R. A., Leggett, S. K., Liu, M. C., Lodieu, N., Lucas, P. W., Martin, E. L., McMahon, R. G., Morales-Calderon, M., Mortlock, D. J., Pinfield, D. J., Tamura, M., Tinney, C. G., Venemans, B. P., Warren, S. J., West, A. A., West, A. A., Zapatero-Osorio, M. R., Zhang, Z.   +27 more
core   +1 more source