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Optical spectroscopy of nearby type1-LINERs

Published online by Cambridge University Press:  29 January 2021

Sara Cazzoli ,
Isabel Márquez ,
Josefa Masegosa ,
Ascensión del Olmo ,
Mirjana Pović ,
Omaira González-Martín ,
Barbara Balmaverde ,
Lorena Hernández-García  and
Santiago García-Burillo
Sara Cazzoli
Affiliation:
IAA - Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080, Granada, Spain email: sara@iaa.es
Isabel Márquez
Affiliation:
IAA - Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080, Granada, Spain email: sara@iaa.es
Josefa Masegosa
Affiliation:
IAA - Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080, Granada, Spain email: sara@iaa.es
Ascensión del Olmo
Affiliation:
IAA - Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080, Granada, Spain email: sara@iaa.es
Mirjana Pović
Affiliation:
IAA - Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080, Granada, Spain email: sara@iaa.es ESSTI/EORC - Ethiopian Space Science and Technology Institute, Entoto Observatory and Research Center, P.O. Box 33679, Addis Ababa, Ethiopia
Omaira González-Martín
Affiliation:
IRyA - Instituto de Radioastronomía y Astrofísica, 3-72 Xangari, 8701, Morelia, Mexico
Barbara Balmaverde
Affiliation:
INAF - Osservatorio Astronomico di Brera, via Brera 28, I-20121 Milano, Italy
Lorena Hernández-García
Affiliation:
Universidad de Valparaíso, Gran Bretana 1111, Playa Ancha, Valparaíso, Chile
Santiago García-Burillo
Affiliation:
OAN - Observatorio Astronómico Nacional, Alfonso XII, 3, 28014, Madrid, Spain
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Abstract

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We present the highlights from our recent study of 22 local (z < 0.025) type-1 LINERs from the Palomar Survey, on the basis of optical long-slit spectroscopic observations taken with TWIN/CAHA, ALFOSC/NOT and HST/STIS. Our goals were threefold: (a) explore the AGN-nature of these LINERs by studying the broad (BLR-originated) Hαλ 6563 component; (b) derive a reliable interpretation for the multiple narrow components of emission lines by studying their kinematics and ionisation mechanism (via standard BPTs); (c) probe the neutral gas in the nuclei of these LINERs for the first time. Hence, kinematics and fluxes of a set of emission lines, from Hβ λ4861 to [SII]λλ 716,6731, and the NaDλλ5890,5896 doublet in absorption have been modelled and measured, after the subtraction of the underlying light from the stellar component.

Keywords

galaxies: activegalaxies: kinematics and dynamicstechniques: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S356: Nuclear Activity in Galaxies Across Cosmic Time , October 2019 , pp. 87 - 92
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

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