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• W2019492793 abstract "With the aim of building a data-set of spectral properties of well studied early-type galaxies showing emission lines, we present intermediate resolution spectra of 50 galaxies in the nearby Universe. The sample, which covers several of the E and S0 morphological sub-classes, is biased toward objects that might be expected to have ongoing and recent star formation, at least in small amounts, because of the presence of the emission lines. The emission is expected to come from the combination of active galactic nuclei and star formation regions within the galaxies. Sample galaxies are located in environments corresponding to a broad range of local galaxy densities, although predominantly in low density environments.
Our long-slit spectra cover the 3700–7250 A wavelength range with a spectral resolution of ≈ 7.6 A at 5550 A. The specific aim of this paper, and our first step in the investigation, is to map the underlying galaxy stellar population by measuring, along the slit positioned along the galaxy major axis, line-strength indices at several, homogeneous galacto-centric distances. 
For each object we extracted 7 luminosity-weighted apertures (with radii 1.5´´, 2.5´´, 10´´, r e /10, r e /8, r e /4 and r e /2) corrected for the galaxy ellipticity and 4 gradients ($0 leq r leq r_{rm e}$/16, $r_{rm e}/16 leq r leq r_{rm e}$/8, $r_{rm e}/8 leq r leq r_{rm e}$/4 and $r_{rm e}/4 leq r leq r_{rm e}$/2). For each aperture and gradient we measured 25 line-strength indices: 21 of the set defined by the Lick-IDS “standard” system (Trager et al. [CITE], ApJS, 116, 1) and 4 introduced by Worthey & Ottaviani ([CITE], ApJS, 111, 377). Line-strength indices have been transformed to the Lick-IDS system. Indices derived then include H β , Mg 1 , Mg 2 , Mgb, MgFe, Fe5270, Fe5335 commonly used in classic index-index diagrams. 
The paper introduces the sample, presents the observations, describes the data reduction procedures, the extraction of apertures and gradients, the determination and correction of the line-strength indices, the procedure adopted to transform them into the Lick-IDS System and the procedures adopted for the emission correction. We finally discuss the comparisons between our dataset and line-strength indices available in the literature. 
A significant fraction, about 60%, of galaxies in the present sample has one previous measurement in the Lick-IDS system but basically restricted within the r e /8 region. Line-strength measures obtained both from apertures and gradients outside this area and within the r e /8 region, with the present radial mapping, are completely new." @default.
• W2019492793 created "2016-06-24" @default.
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• W2019492793 date "2005-04-01" @default.
• W2019492793 modified "2023-10-03" @default.
• W2019492793 title "Nearby early-type galaxies with ionized gas: I. Line-strength indices of the underlying stellar population" @default.
• W2019492793 cites W1530452976 @default.
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• W2019492793 cites W1972214831 @default.
• W2019492793 cites W1978850795 @default.
• W2019492793 cites W1982098128 @default.
• W2019492793 cites W1982461780 @default.
• W2019492793 cites W1984449799 @default.
• W2019492793 cites W1989074257 @default.
• W2019492793 cites W1989424471 @default.
• W2019492793 cites W1997275633 @default.
• W2019492793 cites W1997384998 @default.
• W2019492793 cites W1997674692 @default.
• W2019492793 cites W1999930583 @default.
• W2019492793 cites W1999955588 @default.
• W2019492793 cites W2000980490 @default.
• W2019492793 cites W2006639759 @default.
• W2019492793 cites W2009003724 @default.
• W2019492793 cites W2009508024 @default.
• W2019492793 cites W2010362241 @default.
• W2019492793 cites W2017524870 @default.
• W2019492793 cites W2018879879 @default.
• W2019492793 cites W2023084350 @default.
• W2019492793 cites W2025249076 @default.
• W2019492793 cites W2026714179 @default.
• W2019492793 cites W2031335171 @default.
• W2019492793 cites W2031820744 @default.
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• W2019492793 cites W2037466941 @default.
• W2019492793 cites W2040204985 @default.
• W2019492793 cites W2042905846 @default.
• W2019492793 cites W2050313257 @default.
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• W2019492793 cites W2053195487 @default.
• W2019492793 cites W2055314001 @default.
• W2019492793 cites W2055649715 @default.
• W2019492793 cites W2060265136 @default.
• W2019492793 cites W2060559484 @default.
• W2019492793 cites W2060911139 @default.
• W2019492793 cites W2071103028 @default.
• W2019492793 cites W2072712929 @default.
• W2019492793 cites W2072795524 @default.
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