Emission line galaxies behind the planetary nebula IC 5148: Potential for a serendipity survey with archival data [IMA]

http://arxiv.org/abs/1710.03351


During the start of a survey program using FORS2 long slit spectroscopy on planetary nebulae (PN) and their haloes, we serendipitously discovered six background emission line galaxies (ELG) with redshifts of z = 0.2057, 0.3137, 0.37281, 0.4939, 0.7424 and 0.8668. Thus they clearly do not belong to a common cluster structure. We derived the major physical properties of the targets. Since the used long slit covers a sky area of only 570 arcsec^2, we discuss further potential of serendipitous discoveries in archival data, beside the deep systematic work of the ongoing and upcoming big surveys. We conclude that archival data provide a decent potential for extending the overall data on ELGs without any selection bias.

Read this paper on arXiv…

S. Kimeswenger, D. Barria, W. Kausch, et. al.
Wed, 11 Oct 17
54/65

Comments: 9 pages, 10 figures, accepted for publication in Revista Mexicana de Astronom\’ia y Astrof\’isica