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Abstract:

Aims.The exciting debate about the existence of signs of enhanced formation of Galactic open clusters (OCs) is revisited here on the basis of a revised age distribution. Methods.The data were taken from the recently updated 2009 version of the Dias et al.'s 1787 OC catalogue. Results.We found that the present OC's age distribution presents two primary excesses at t ∼ 10-15 Myr and 1.5 Gyr, which are signs of enhanced formation episodes similar to those that occurred in other galaxies (e.g., M51, NGC 1705). When restricting the OC sample to those located in the solar neighbourhood, with the aim of avoiding incompleteness effects, we also find that these clusters are engraved with clear signs of enhanced formation at both ages. © 2010 ESO.

Registro:

Documento: Artículo
Título:Evidence of enhanced formation episodes in the Galactic open cluster system
Autor:Piatti, A.E.
Filiación:Instituto de Astronomía y Física Del Espacio, CC 67, Suc. 28, 1428 Buenos Aires, Argentina
Palabras clave:Galaxies: star clusters: general; Open clusters and associations: general; Cluster computing; Age distribution; Galaxies: star clusters; Open cluster systems; Open clusters; Open clusters and associations: general; Solar neighbourhood; Galaxies
Año:2010
Volumen:513
Número:11
DOI: http://dx.doi.org/10.1051/0004-6361/201014216
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v513_n11_p_Piatti

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Citas:

---------- APA ----------
(2010) . Evidence of enhanced formation episodes in the Galactic open cluster system. Astronomy and Astrophysics, 513(11).
http://dx.doi.org/10.1051/0004-6361/201014216
---------- CHICAGO ----------
Piatti, A.E. "Evidence of enhanced formation episodes in the Galactic open cluster system" . Astronomy and Astrophysics 513, no. 11 (2010).
http://dx.doi.org/10.1051/0004-6361/201014216
---------- MLA ----------
Piatti, A.E. "Evidence of enhanced formation episodes in the Galactic open cluster system" . Astronomy and Astrophysics, vol. 513, no. 11, 2010.
http://dx.doi.org/10.1051/0004-6361/201014216
---------- VANCOUVER ----------
Piatti, A.E. Evidence of enhanced formation episodes in the Galactic open cluster system. Astron. Astrophys. 2010;513(11).
http://dx.doi.org/10.1051/0004-6361/201014216