The Local Group Census: Planetary nebulae in Sextans B

Bibcode
2002A&A...386..869M
DOI
10.1051/0004-6361:20020296
Magrini, L.; Corradi, R. L. M.; Walton, N. A.; Zijlstra, A. A.; Pollacco, D. L.; Walsh, J. R.; Perinotto, M.; Lennon, D. J.; Greimel, R.
Referencia bibliográfica

Astronomy and Astrophysics, v.386, p.869-873 (2002)

Fecha de publicación:
5
2002
Revista
Astronomy and Astrophysics
Número de autores
9
Número de autores del IAC
0
Número de citas
18
Número de citas referidas
11
Descripción
Five planetary nebulae (PNe) have been discovered in the nearby dwarf irregular galaxy. Emission line images were obtained using the Wide Field Camera of the 2.5 m Isaac Newton Telescope (INT) at La Palma (Spain). The candidate PNe were identified by their point-like appearance and relatively strong [O III] emission-line fluxes. They are located within a galactocentric distance of 2.8 arcmin, corresponding to 1.1 kpc at the distance of Sextans B. Luminosities are in the range 1800-5600 L_sun. Sextans B is one of the smallest dwarf irregular galaxies with a PN population. The number of PNe detected suggest an enhanced star formation rate between 1 and 5 Gyr ago. Based on observations obtained at the 2.5 m INT telescope operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de Los Muchachos of the Instituto de Astrofisica de Canarias.
Tipo
Con árbitro
Nebulosas planetarias
Galaxias

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