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5 results on '"Clariá, J. J."'

1. Determinación espectroscópica de parámetros fundamentales de 18 cúmulos abiertos de pequeño diámetro angular

Author

Alejandro Benítez-Llambay, Piatti, A. E., Clariá, J. J., Palma, T., Ahumada, A. V., Benitez-Llambay, A, Piatti, A, Clariá, J, Palma, T, and Ahumada, A

Subjects
galactic open cluster
Abstract

Following specific criteria, we have carefully selected objects catalogued as galactic open cluster candidates. Out of a total of 58 small angular diameter selected objects without previous studies, we obtained integrated spectra of 18 of them at CASLEO (San Juan, Argentina). Using a computational tool specially developed for the analysis of integrated spectra, reddenings and ages of the observed clusters were determined for the first time. FULL TEXT IN SPANISH

Published
2010

2. Propiedades espectrales integradas de 27 cúmulos estelares concentrados pertenecientes a la Nube Mayor de Magallanes

Author

Minniti, J, Ahumada, A, Clariá, J, Benitez-Llambay, A, Minniti, J. H., Ahumada, A. V., Clariá, J. J., Benitez-Llambay, Alejandro., Minniti, J, Ahumada, A, Clariá, J, Benitez-Llambay, A, Minniti, J. H., Ahumada, A. V., Clariá, J. J., and Benitez-Llambay, Alejandro.

Abstract

We present integrated spectra in the optical range () for 27 concentrated star clusters (SCs) of the Large Magellanic Cloud (LMC). colour excesses and ages of these SCs are determined from two different methods: (1) Measurement of equivalent widths in selected spectral windows. (2) Comparison of the integrated spectra with template spectra. The current sample of integrated spectra complements previous ones in an effort to gather a spectral library with several clusters per age bin. FULL TEXT IN SPANISH

Published
2013

3. Determinación de edades y enrojecimientos de cúmulos estelares pertenecientes a la Nube Mayor de Magallanes

Author

Minniti, J, Ahumada, A, Clariá, J, Benitez-Llambay, A, Oddone, M, Bica, E, Santos, J, Minniti, J. H, Ahumada, A. V., Clariá, J. J., Benitez-Llambay, Alejandro, Oddone, M. A., Bica, E., Santos, J. F. C., Minniti, J, Ahumada, A, Clariá, J, Benitez-Llambay, A, Oddone, M, Bica, E, Santos, J, Minniti, J. H, Ahumada, A. V., Clariá, J. J., Benitez-Llambay, Alejandro, Oddone, M. A., Bica, E., and Santos, J. F. C.

Abstract

We present flux-calibrated integrated spectra in the optical range obtained with the REOSC spectrograph (CASLEO, Argentina) for 9 concentrated stellar clusters belonging to the Large Magellanic Cloud, one of which was not previously studied. We estimate simultaneously age and foreground reddening by using the algorithm FISA. For the studied sample, we derive ages between 2 Myr and 350 Myr and foreground reddening E(B-V) values in the range 0.00--0.23 mag. These values are mostly in agreement with the ones found by other authors. FULL TEXT IN SPANISH

Published
2012

4. Espectros integrados EFOSC2/NTT de 10 cúmulos estelares pertenecientes a las Nubes de Magallanes

Author

Ahumada, A, Benitez-Llambay, A, Santos, J, Clariá, J, Bica, E, Piatti, A, Ahumada, A. V., Benitez-Llambay, Alejandro., Santos, J. F. C., Clariá, J. J., Bica, E., Piatti, A. E., Ahumada, A, Benitez-Llambay, A, Santos, J, Clariá, J, Bica, E, Piatti, A, Ahumada, A. V., Benitez-Llambay, Alejandro., Santos, J. F. C., Clariá, J. J., Bica, E., and Piatti, A. E.

Abstract

We present integrated spectra in the optical range for 10 concentrated Mag- ellanic Clouds' (MCs) stellar clusters, six of them belonging to the Large Magellanic Cloud, and the other four to the Small Magellanic Cloud. The spectra were obtained with the EFOSC2 spectrograph (NTT-ESO, La Silla, Chile). We estimate simultaneously age and foreground reddening by com- paring the continuum distribution and line strengths of the cluster spectra with those of template spectra. The present cluster sample complements previous ones, in an effort to create a spectral library for the MCs with sev- eral clusters per age bin. FULL TEXT IN SPANISH

Published
2011

5. Determinación espectroscópica de parámetros fundamentales de 18 cúmulos abiertos de pequeño diámetro angular

Author

Benitez-Llambay, A, Piatti, A, Clariá, J, Palma, T, Ahumada, A, Benitez-Llambay, Alejandro., Piatti, A. E., Clariá, J. J., Palma, T., Ahumada, A. V., Benitez-Llambay, A, Piatti, A, Clariá, J, Palma, T, Ahumada, A, Benitez-Llambay, Alejandro., Piatti, A. E., Clariá, J. J., Palma, T., and Ahumada, A. V.

Abstract

Following specific criteria, we have carefully selected objects catalogued as galactic open cluster candidates. Out of a total of 58 small angular diameter selected objects without previous studies, we obtained integrated spectra of 18 of them at CASLEO (San Juan, Argentina). Using a computational tool specially developed for the analysis of integrated spectra, reddenings and ages of the observed clusters were determined for the first time. FULL TEXT IN SPANISH

Published
2010

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