Artículo
Forte, J.C.; Cellone, S.A.; Méndez, M.; Vega, E.I. "Dust within globular clusters: A large bubble in NGC 6624?" (1992) Astrophysical Journal. 388(2):383-391
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Abstract:
An analysis of dark patches, based on multicolor CCD frames, and polarimetry of stars in the field of the globular cluster NGC 6624 are presented. The apparent extinctions in a number of dark patches reveal a nongray behavior with wavelength. The fitting of a given extinction law indicates minimum intrinsic visual extinctions ranging from 0.20 to 0.30 mag. These results are consistent with photometric measurements made in annular segments and with differential reddening effects in the C-M diagram, suggesting the existence of a large-scale dust feature associated with the cluster. The overall appearance of the distribution of the dark patches is reminiscent of a bubble-like geometry not centered at the cluster nucleus and with a 50″ radius. The apparent center of this structure is located at some 9″ from the position of the X-ray burster 1820-30.
Registro:
| Documento: | Artículo |
| Título: | Dust within globular clusters: A large bubble in NGC 6624? |
| Autor: | Forte, J.C.; Cellone, S.A.; Méndez, M.; Vega, E.I. |
| Filiación: | Inst. Astronomia y Fis. del Espacio, C.C. 67, Succ. 28, 1428 Buenos Aires, Argentina Fac. de Cie. Astronomicas y Geofis., Universidad Nacional de La Plata, Paseo del Bosgue, 1900 La Plata, Argentina Complejo Astron. El Leoncito, Santa Fé 198 Oeste, 5400 San Juan, Argentina Cerro Tololo Inter-Amer. Observatory, AURA Complejo Astron. El Leoncito S. Juan, Argentina |
| Palabras clave: | Dust, extinction; Globular clusters: individual (NGC 6624); Polarization |
| Año: | 1992 |
| Volumen: | 388 |
| Número: | 2 |
| Página de inicio: | 383 |
| Página de fin: | 391 |
| DOI: | http://dx.doi.org/10.1086/171161 |
| Título revista: | Astrophysical Journal |
| Título revista abreviado: | Astrophys. J. |
| ISSN: | 0004637X |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v388_n2_p383_Forte |
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Citas:
---------- APA ----------
Forte, J.C., Cellone, S.A., Méndez, M. & Vega, E.I. (1992) . Dust within globular clusters: A large bubble in NGC 6624?. Astrophysical Journal, 388(2), 383-391.http://dx.doi.org/10.1086/171161
---------- CHICAGO ----------
Forte, J.C., Cellone, S.A., Méndez, M., Vega, E.I. "Dust within globular clusters: A large bubble in NGC 6624?" . Astrophysical Journal 388, no. 2 (1992) : 383-391.http://dx.doi.org/10.1086/171161
---------- MLA ----------
Forte, J.C., Cellone, S.A., Méndez, M., Vega, E.I. "Dust within globular clusters: A large bubble in NGC 6624?" . Astrophysical Journal, vol. 388, no. 2, 1992, pp. 383-391.http://dx.doi.org/10.1086/171161
---------- VANCOUVER ----------
Forte, J.C., Cellone, S.A., Méndez, M., Vega, E.I. Dust within globular clusters: A large bubble in NGC 6624?. Astrophys. J. 1992;388(2):383-391.http://dx.doi.org/10.1086/171161
