Fourier plane modeling of the jet in the galaxy M81

被引：0

作者：

Ramessur, Arvind ^{[1
,2
]}

Bietenholz, Michael F. ^{[1
,3
]}

Leeuw, Lerothodi L. ^{[2
]}

Bartel, Norbert ^{[3
]}

机构：

[1] Hartebeesthoek Radio Astron Observ, POB 443, ZA-1740 Krugersdorp, South Africa

[2] Univ South Africa, Coll Grad Studies, ZA-0003 Pretoria, South Africa

[3] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada

来源：

EXTRAGALACTIC JETS FROM EVERY ANGLE | 2015年 / 10卷 / 313期

关键词：

galaxies: active; galaxies: individual (M81); galaxies: jets; instrumentation: high angular resolution; techniques: interferometric; CORE;

D O I：

10.1017/S1743921315002562

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The nearby spiral galaxy M81 has a low-luminosity Active Galactic Nucleus in its center with a core and a one-sided curved jet, dubbed M81*, that is barely resolved with VLBI. To derive basic parameters such as the length of the jet, its orientation and curvature, the usual method of model-fitting with point sources and elliptical Gaussians may not always be the most appropriate one. We are developing Fourier-plane models for such sources, in particular an asymmetric triangle model to fit the extensive set of VLBI data of M81* in the u-v plane. This method may have an advantage over conventional ones in extracting information close to the resolution limit to provide us with a more comprehensive picture of the structure and evolution of the jet. We report on preliminary results.

引用

页码：388 / 389

页数：2