Dust Formation in a Galaxy with Primitive Abundances | Zendy

G. C. Sloan | Zendy; M. Matsuura | Zendy; A. A. Zijlstra | Zendy; E. Lagadec | Zendy; M. A. T. Groenewegen | Zendy; P. R. Wood | Zendy; C. Szyszka | Zendy; J. BernardSalas | Zendy; J. Th. van Loon | Zendy

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Dust Formation in a Galaxy with Primitive Abundances

Author(s) -

G. C. Sloan,

M. Matsuura,

A. A. Zijlstra,

E. Lagadec,

M. A. T. Groenewegen,

P. R. Wood,

C. Szyszka,

J. BernardSalas,

J. Th. van Loon

Publication year - 2009

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.1165626

Subject(s) - physics , astrophysics , galaxy , astronomy , cosmic dust , abundance (ecology) , stars , intergalactic dust , ejecta , interstellar medium , astrobiology , supernova , intergalactic medium , ecology , biology , redshift

Interstellar dust plays a crucial role in the evolution of galaxies. It governs the chemistry and physics of the interstellar medium. In the local universe, dust forms primarily in the ejecta from stars, but its composition and origin in galaxies at very early times remain controversial. We report observational evidence of dust forming around a carbon star in a nearby galaxy with a low abundance of heavy elements, 25 times lower than the solar abundance. The production of dust by a carbon star in a galaxy with such primitive abundances raises the possibility that carbon stars contributed carbonaceous dust in the early universe.

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