Deep 10 micron imaging of M87

被引：82

作者：

Perlman, ES

Sparks, WB

Radomski, J

Packham, C

Fisher, RS

Piña, R

Biretta, JA

机构：

[1] Univ Maryland Baltimore Cty, Dept Phys, Joint Ctr Astrophys, Baltimore, MD 21250 USA

[2] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

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

[4] Univ Florida, Dept Astron, Gainesville, FL 32611 USA

[5] Gemini Observ, Hilo, HI 96720 USA

来源：

ASTROPHYSICAL JOURNAL | 2001年 / 561卷 / 01期

基金：

澳大利亚研究理事会; 美国国家航空航天局; 美国国家科学基金会;

关键词：

galaxies : active; galaxies : elliptical and lenticular; cD galaxies : jets; galaxies : nuclei; infrared : galaxies;

D O I：

10.1086/324515

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze a 10.8 mum image of M87, obtained with the Gemini 8 m telescope + OSCIR. The image has better than 0."5 resolution and represents 7 hr of observing time, making it the deepest high-resolution mid-IR image ever. The core is marginally resolved, and we also detect five optically bright knots in the jet. The spectral energy distributions of these features are entirely consistent with synchrotron radiation; we find little evidence of thermal emission from a dusty torus. Four faint jet regions are below the noise level of these observations. We also find evidence for diffuse galactic emission.

引用

页码：L51 / L54

页数：4

共 44 条

[1] The nonstellar infrared continuum of Seyfert galaxies [J].