Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Costero, R."'
Autor:
Echevarría, J., Santisteban, J. V. Hernández, Montero, O. Segura, Ramírez, S. H., Ruelas-Mayorga, A., Sánchez, L. J., Michel, R., Costero, R., González-Buitrago, D. H., Olivares, J.
Spectroscopic observations of AH Herculis during a deep quiescent state are put forward. We found the object in a rare long minima, allowing us to derive accurately the semi-amplitudes: $K_1 =121 \pm \, 4$ \kms\ and $K_2 =152 \pm 2$ \kms\ and its mas
Externí odkaz:
http://arxiv.org/abs/2011.08310
Autor:
Costero, R.
Preliminary results on the ongoing spectroscopic study of the six brightest Orion Trapezium stars is presented here. The main purpose of this work is to better understand the multiplicity and stability of each of these subsystems and the dynamical fu
Externí odkaz:
http://arxiv.org/abs/1906.11956
Autor:
Gómez Patiño, J.A., Fontanilla Echeveste, M.T., Alfageme Zubillaga, M., Méndez Alonso, S., Royuela Vicente, A., González Costero, R., García Suárez, A.
Publikováno v:
In Radiologia September 2023
Autor:
Santisteban, J. V. Hernández, Echevarría, J., Zharikov, S., Neustroev, V., Tovmassian, G., Chavushyan, V., Napiwotzki, R., Costero, R., Michel, R., Sánchez, L. J., Ruelas-Mayorga, A., Olguín, L., García-Díaz, Ma. T., González-Buitrago, D., de Miguel, E., de la Fuente, E., de Anda, R., Suleimanov, V.
We analyse new optical spectroscopic, direct-image and X-ray observations of the recently discovered a high proper motion cataclysmic variable V1838 Aql. The data were obtained during its 2013 superoutburst and its subsequent quiescent state. An exte
Externí odkaz:
http://arxiv.org/abs/1811.02349
Autor:
Echevarría, J., de Miguel, E., Santisteban, J. V. Hernández, Michel, R., Costero, R., Sánchez, L. J., Ruelas-Mayorga, A., Olivares, J., González-Buitrago, D., Jones, J. L., Oskanen, A., Goff, W., Ulowetz, J., Bolt, G., Sabo, R., Hambsch, F. -J, Slauson, D., Stein, W.
We present an in-depth photometric study of the 2013 superoutburst of the recently discovered cataclysmic variable V1838 Aql and subsequent photometry near its quiescent state. A careful examination of the development of the superhumps is presented.
Externí odkaz:
http://arxiv.org/abs/1810.09864
Autor:
Rebassa-Mansergas, A., Ren, J. J., Irawati, P., Garcia-Berro, E., Parsons, S. G., Schreiber, M. R., Gaensicke, B. T., Rodriguez-Gil, P., Liu, X., Manser, C., Palomo-Nevado, S., Jimenez-Ibarra, F., Costero, R., Echevarria, J., Michel, R., Zorotovic, M., Hollands, M., Han, Z., Luo, A., Villaver, E., Kong, X.
We present the second paper of a series of publications aiming at obtaining a better understanding regarding the nature of type Ia supernovae (SNIa) progenitors by studying a large sample of detached F, G and K main sequence stars in close orbits wit
Externí odkaz:
http://arxiv.org/abs/1708.09480
We discuss recent observational data on the transverse and radial velocities, as well as on the masses of the main components of the Orion Trapezium. Based on the most reliable values of these quantities we study the dynamical evolution of ensembles
Externí odkaz:
http://arxiv.org/abs/1701.03440
We have obtained simultaneous photometric and spectroscopic observations of the cataclysmic variable 1RXS J064434.5+334451. We have calibrated the spectra for slit losses using the simultaneous photometry allowing to construct reliable Doppler images
Externí odkaz:
http://arxiv.org/abs/1609.03154
Publikováno v:
The Astronomical Journal, Volume 146, Issue 5, article id. 106, 8 pp. (2013)
Using the novel Diffracto-Astrometry technique, we analyze 44 Hubble Space Telescope Wide Field Planetary Camera 2 images of the Orion Trapezium (OT) taken over a span of 12 yr (1995-2007). We measure the relative positions of the six brighter OT com
Externí odkaz:
http://arxiv.org/abs/1310.0769
Autor:
Briquet, M., Neiner, C., Aerts, C., Morel, T., Mathis, S., Reese, D. R., Lehmann, H., Costero, R., Echevarria, J., Handler, G., Kambe, E., Hirata, R., Masuda, S., Wright, D., Yang, S., Pintado, O., Mkrtichian, D., Lee, B. -C., Han, I., Bruch, A., De Cat, P., Uytterhoeven, K., Lefever, K., Vanautgaerden, J., de Batz, B., Frémat, Y., Henrichs, H., Geers, V. C., Martayan, C., Hubert, A. M., Thizy, O., Tijani, A.
We used extensive ground-based multisite and archival spectroscopy to derive observational constraints for a seismic modelling of the magnetic beta Cep star V2052 Ophiuchi. The line-profile variability is dominated by a radial mode (f_1=7.14846 d^{-1
Externí odkaz:
http://arxiv.org/abs/1208.4250