Spectroscopic atlas of the central 24" x 20" of the Seyfert 2 galaxy NGC 1068

被引：21

作者：

García-Lorenzo, B ^{[1
]}

Mediavilla, E ^{[1
]}

Arribas, S ^{[1
]}

机构：

[1] Inst Astrofis Canarias, E-38200 La Laguna, Tenerife, Spain

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 518卷 / 01期

关键词：

atlases; galaxies : individual (NGC 1068); galaxies : Seyfert; galaxies : structure;

D O I：

10.1086/307281

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two-dimensional spectroscopy of the central 24 " x 20 " of the Seyfert 2 galaxy NGC 1068 has been obtained using a fiber-optic system (2D-FIS). The homogeneity, spectral coverage (similar to 4170-5749 and 6250-9469 Angstrom), and spatial (similar to 0." 9) and spectral resolution (similar to 1.53 Angstrom pixel(-1) and 2.73 Angstrom pixel(-1)) of the data make them a useful database with which to study in detail the kinematics and physical properties of the circumnuclear region of this galaxy, as well as the active nucleus and host galaxy connection. The data are presented as an atlas containing 570 spectra, which include over 15 emission lines and several stellar features. We have carried out a preliminary analysis of the data, deriving continua at different wavelengths and emission-line intensity maps directly from the observed spectra. We have also derived the ionized velocity field from different emission lines, and the stellar velocity field. Velocity dispersions of the stellar component have also been estimated.

引用

页码：190 / 212

页数：23

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