The Local Group census: Searching for planetary nebulae in IC 1613, WLM and GR8

L. Magrini, R. L.M. Corradi, R. Greimel, P. Leisy, A. Mampaso, M. Perinotto, J. R. Walsh, N. A. Walton, A. A. Zijlstra, D. Minniti, M. Mora

Resultado de la investigación: Article

9 Citas (Scopus)

Resumen

In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec = -30° aimed at surveying the populations that have strong emission lines, we have searched for planetary nebulae (PNe) in the low-metallicity dwarf irregular galaxies IC 1613, WLM, GR 8. Two new candidate PNe have been found in IC 1613, one in WLM and none in GR 8. The observations presented in this paper, together with the previous results from the LGC, represent the first step in the study of the PN population in low-metallicity, dwarf irregular galaxies of the Local Group. These observations will be followed by deep spectroscopy to confirm the nature of these objects and to study their physical-chemical properties. We use the observed number of PNe in each LG galaxy to estimate a lower limit to the mass of the intermediate-age population, which is compared with the star formation rate (SFR) of LG dwarf galaxies. These results are in agreement with those from accurate star formation history (SFH) analyses for these small galaxy systems.

Idioma originalEnglish
Páginas (desde-hasta)517-524
Número de páginas8
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen361
N.º2
DOI
EstadoPublished - 1 ago 2005

Huella dactilar

census
planetary nebulae
dwarf galaxies
surveying
chemical property
irregular galaxies
spectroscopy
galaxies
metallicity
history
star formation rate
chemical properties
star formation
histories
estimates
rate

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Magrini, L., Corradi, R. L. M., Greimel, R., Leisy, P., Mampaso, A., Perinotto, M., ... Mora, M. (2005). The Local Group census: Searching for planetary nebulae in IC 1613, WLM and GR8. Monthly Notices of the Royal Astronomical Society, 361(2), 517-524. https://doi.org/10.1111/j.1365-2966.2005.09190.x
Magrini, L. ; Corradi, R. L.M. ; Greimel, R. ; Leisy, P. ; Mampaso, A. ; Perinotto, M. ; Walsh, J. R. ; Walton, N. A. ; Zijlstra, A. A. ; Minniti, D. ; Mora, M. / The Local Group census : Searching for planetary nebulae in IC 1613, WLM and GR8. En: Monthly Notices of the Royal Astronomical Society. 2005 ; Vol. 361, N.º 2. pp. 517-524.
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abstract = "In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec = -30° aimed at surveying the populations that have strong emission lines, we have searched for planetary nebulae (PNe) in the low-metallicity dwarf irregular galaxies IC 1613, WLM, GR 8. Two new candidate PNe have been found in IC 1613, one in WLM and none in GR 8. The observations presented in this paper, together with the previous results from the LGC, represent the first step in the study of the PN population in low-metallicity, dwarf irregular galaxies of the Local Group. These observations will be followed by deep spectroscopy to confirm the nature of these objects and to study their physical-chemical properties. We use the observed number of PNe in each LG galaxy to estimate a lower limit to the mass of the intermediate-age population, which is compared with the star formation rate (SFR) of LG dwarf galaxies. These results are in agreement with those from accurate star formation history (SFH) analyses for these small galaxy systems.",
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Magrini, L, Corradi, RLM, Greimel, R, Leisy, P, Mampaso, A, Perinotto, M, Walsh, JR, Walton, NA, Zijlstra, AA, Minniti, D & Mora, M 2005, 'The Local Group census: Searching for planetary nebulae in IC 1613, WLM and GR8', Monthly Notices of the Royal Astronomical Society, vol. 361, n.º 2, pp. 517-524. https://doi.org/10.1111/j.1365-2966.2005.09190.x

The Local Group census : Searching for planetary nebulae in IC 1613, WLM and GR8. / Magrini, L.; Corradi, R. L.M.; Greimel, R.; Leisy, P.; Mampaso, A.; Perinotto, M.; Walsh, J. R.; Walton, N. A.; Zijlstra, A. A.; Minniti, D.; Mora, M.

En: Monthly Notices of the Royal Astronomical Society, Vol. 361, N.º 2, 01.08.2005, p. 517-524.

Resultado de la investigación: Article

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T1 - The Local Group census

T2 - Searching for planetary nebulae in IC 1613, WLM and GR8

AU - Magrini, L.

AU - Corradi, R. L.M.

AU - Greimel, R.

AU - Leisy, P.

AU - Mampaso, A.

AU - Perinotto, M.

AU - Walsh, J. R.

AU - Walton, N. A.

AU - Zijlstra, A. A.

AU - Minniti, D.

AU - Mora, M.

PY - 2005/8/1

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N2 - In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec = -30° aimed at surveying the populations that have strong emission lines, we have searched for planetary nebulae (PNe) in the low-metallicity dwarf irregular galaxies IC 1613, WLM, GR 8. Two new candidate PNe have been found in IC 1613, one in WLM and none in GR 8. The observations presented in this paper, together with the previous results from the LGC, represent the first step in the study of the PN population in low-metallicity, dwarf irregular galaxies of the Local Group. These observations will be followed by deep spectroscopy to confirm the nature of these objects and to study their physical-chemical properties. We use the observed number of PNe in each LG galaxy to estimate a lower limit to the mass of the intermediate-age population, which is compared with the star formation rate (SFR) of LG dwarf galaxies. These results are in agreement with those from accurate star formation history (SFH) analyses for these small galaxy systems.

AB - In the framework of the Local Group Census (LGC), a survey of the Local Group (LG) galaxies above Dec = -30° aimed at surveying the populations that have strong emission lines, we have searched for planetary nebulae (PNe) in the low-metallicity dwarf irregular galaxies IC 1613, WLM, GR 8. Two new candidate PNe have been found in IC 1613, one in WLM and none in GR 8. The observations presented in this paper, together with the previous results from the LGC, represent the first step in the study of the PN population in low-metallicity, dwarf irregular galaxies of the Local Group. These observations will be followed by deep spectroscopy to confirm the nature of these objects and to study their physical-chemical properties. We use the observed number of PNe in each LG galaxy to estimate a lower limit to the mass of the intermediate-age population, which is compared with the star formation rate (SFR) of LG dwarf galaxies. These results are in agreement with those from accurate star formation history (SFH) analyses for these small galaxy systems.

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KW - Planetary nebulae: individual: WLM

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