Mid-infrared [Ne II] line emission from the nucleus of NGC 253

被引：29

作者：

Boker, T

Krabbe, A

Storey, JWV

机构：

[1] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[2] DLR, Inst Space Sensor Technol, Berlin, Germany

[3] Max Planck Inst Extraterr Phys, D-85740 Garching, Germany

来源：

ASTROPHYSICAL JOURNAL | 1998年 / 498卷 / 02期

关键词：

galaxies; individual; (NGC; 253); starburst; infrared; ISM; lines and bands;

D O I：

10.1086/311326

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on mid-infrared continuum and line emission mapping of the nucleus of NGC 253. The data, with a resolution of 1." 4, reveal a double-peaked arclike [Ne II] emission region. Comparison with published data shows that the [Ne Ir] are is centered on the nucleus of the galaxy. The brightest [Ne Ir] source coincides with the infrared continuum peak. The interpretation of these results is complicated by the edge-on orientation of NGC 253, but a self-consistent explanation is a star formation triggered by dynamical resonances in a barred potential.

引用

页码：L115 / +

页数：5

共 30 条

[1] A LARGE FAMILY OF COMPACT RADIO-SOURCES IN THE STARBURST NUCLEUS OF NGC-253 [J].