Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Parrao, L."'
Photometric $(ubvy-\beta$) and spectroscopic observations of the $\delta$ Scuti variables \astrobj{7 Aql} and \astrobj{8 Aql} are described. The Str\"omgren standard indices and physical parameters of both stars are derived. Spectral types of F0V and
Externí odkaz:
http://arxiv.org/abs/0912.2808
Publikováno v:
AIP Conf. Proc.1170:423,2009
The preliminary results of new photometric observations of the $\delta$ Scuti stars 7 Aql and 8 Aql are reported. 51 hr of $uvby-\beta$ photoelectric photometric data were obtained over the period June and July 2007 at the San Pedro M\'artir Observat
Externí odkaz:
http://arxiv.org/abs/0911.4569
Autor:
Machado, L. Fox, Michel, E., Chevreton, M., Alvarez, M., Li, Z. P., Belmonte, J. A., Fernandez, A., Parrao, L., Rabus, M., Lochard, J, Hernandez, F. Perez, Pena, J. H., Pau, S.
The preliminary results of STEPHI 2006 campaign are reported.
Comment: To be published in Communications in Asteroseismolgy: Special Issue
Comment: To be published in Communications in Asteroseismolgy: Special Issue
Externí odkaz:
http://arxiv.org/abs/0809.4780
Autor:
Alvarez, M., Sareyan, J. P., Parrao, L., Pena, J. H., Machado, L. Fox, Poretti, E., Martin-Ruiz, S., Amado, P., Garrido, R., Aerts, C., Csurby, Z., Paparo, M.
We present the analysis of the variability of HD 170699, a COROT star showing the characteristics of a non evolutionary Delta Scuti star with high rotational velocity. There is a clear period of 10.45 c/d with 5.29 mmag amplitude in the y filter. Fro
Externí odkaz:
http://arxiv.org/abs/0809.4013
As a continuation of the study of the Delta Scuti stars 7 Aql and 8 Aql; new CCD photometric data were acquired in 2007. We present a period analysis on these data that confirm the dominant modes detected in each star in the framework of the STEPHI X
Externí odkaz:
http://arxiv.org/abs/0802.3205
Autor:
Costa, J. E. S., Michel, E., Pena, J., Creevey, O., Li, Z. P., Chevreton, M., Belmonte, J. A., Alvarez, M., Machado, L. Fox, Parrao, L., Hernendez, F. Perez, Fernandez, A., Fremy, J. R., Pau, S., Alonso, R.
Publikováno v:
Astron.Astrophys.468:637-642,2007
The eclipsing delta-Scuti star HD 172189 is a probable member of the open cluster IC 4756 and a promising candidate target for the CoRoT mission. The detection of pulsation modes is the first step in the asteroseismological study of the star. Further
Externí odkaz:
http://arxiv.org/abs/0706.4083
Autor:
Machado, L. Fox, Michel, E., Hernandez, F. Perez, Pena, J. H., Li, Z. P., Chevreton, M., Belmonte, J. A., Alvarez, M., Parrao, L., Dupret, M. -A., Pau, S., Fernandez, A., Michel, J. P., Michel, R., Pani, A.
Publikováno v:
Astron.J.134:860-866,2007
We present an analysis of the pulsation behaviour of the Delta Scuti stars 7 Aql (HD 174532) and 8 Aql (HD 174589) -- a new variable star -- observed in the framework of STEPHI XII campaign during 2003 June--July. 183 hours of high precision photomet
Externí odkaz:
http://arxiv.org/abs/0706.0576
Autor:
Handler, G., Jerzykiewicz, M., Rodriguez, E., Uytterhoeven, K., Amado, P. J., Dorokhova, T. N., Dorokhov, N. I., Poretti, E., Sareyan, J. -P., Parrao, L., Lorenz, D., Zsuffa, D., Drummond, R., Daszynska-Daszkiewicz, J., Verhoelst, T., De Ridder, J., Acke, B., Bourge, P. -O., Movchan, A. I., Garrido, R., Paparo, M., Sahin, T., Antoci, V., Udovichenko, S. N., Csorba, K., Crowe, R., Berkey, B., Stewart, S., Terry, D., Mkrtichian, D. E., Aerts, C.
Publikováno v:
Mon.Not.Roy.Astron.Soc.365:327-338,2006
We report a multisite photometric campaign for the Beta Cephei star 12 Lacertae. 750 hours of high-quality differential photoelectric Stromgren, Johnson and Geneva time-series photometry were obtained with 9 telescopes during 190 nights. Our frequenc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510326
New uvby-\beta data are provided for 442 high-velocity and metal-poor stars; 90 of these stars have been observed previously by us, and 352 are new. When combined with our previous two photometric catalogues, the data base is now made up of 1533 high
Externí odkaz:
http://arxiv.org/abs/astro-ph/0510313
Autor:
Lampens, P., Frémat, Y., Garrido, R., Peña, J. H., Parrao, L., Van Cauteren, P., Cuypers, J., De Cat, P., Uytterhoeven, K., Arentoft, T., Hobart, M.
Multi-site and multi-year differential photometry of the triple star DG Leo reveals a complex frequency spectrum that can be modelled as the combination of at least three Delta Scuti type frequencies in the range 11.5-13 c/d (with semi-amplitudes of
Externí odkaz:
http://arxiv.org/abs/astro-ph/0505022