SIMBAD references

2003A&A...407...51M - Astronomy and Astrophysics, volume 407, 51-59 (2003/8-3)

The Local Group Census: Planetary nebulae in IC 10, Leo A and Sextans A.

MAGRINI L., CORRADI R.L.M., GREIMEL R., LEISY P., LENNON D.J., MAMPASO A., PERINOTTO M., POLLACCO D.L., WALSH J.R., WALTON N.A. and ZIJLSTRA A.A.

Abstract (from CDS):

In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular galaxies IC 10, Leo A and Sextans A. Using the standard on-band/off-band technique, sixteen new candidate PNe have been discovered in the closest starburst galaxy, IC 10. The optical size of this galaxy is estimated to be much larger than previously thought, considering the location of the new PNe in an area of 3.6kpcx2.7kpc. We also confirm the results of previous studies for the other two dwarf irregular galaxies, with the detection of one candidate PN in Leo A and another one in Sextans A. We review the number of planetary nebulae discovered in the Local Group to date and their behaviour with metallicity. We suggest a possible fall in the observed number of PNe when [Fe/H]≪-1.0, which might indicate that below this point the formation rate of PNe is much lower than for stellar populations of near Solar abundances. We also find non-negligible metallicity effects on the [O III] luminosity of the brightest PN of a galaxy.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - galaxies: individual: Leo A, Sextans A, IC 10

Nomenclature: Table 1: [MCG2003] IC 10 PN NN (Nos 1-16), [MCG2003] Leo A PN N (No. 1), [MCG2003] Sex A PN N (No. 1).

Simbad objects: 35

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2003A&A...407...51M and select 'bookmark this link' or equivalent in the popup menu


2020.08.15-16:05:22

© Université de Strasbourg/CNRS

    • Contact