Proposal code

w415

Proposal title

Multi-frequency VSOP observations of NGC 6251

The

Investigators and their

Affiliations

P.I. Hiroshi Sudou Astronomical Institute, Tohoku University, Japan
Yoshiaki Taniguchi Astronomical Institute, Tohoku University, Japan
Osamu Kaburaki Astronomical Institute, Tohoku University, Japan
Seiji Kameno National Astronomical Observatory, Japan
Satoko Sawada-Satoh National Astronomical Observatory, Japan
Makoto Inoue National Astronomical Observatory, Japan

Proposal Abstract

We propose VSOP observation of the nearby powerful radio galaxy NGC 6251 at 15 and 22 GHz. In our previous VLBA (15 GHz) and VSOP (5 GHz) observations of NGC 6251, we discovered a new knot at 2 mas from the brightest peak and heavy absorption at the core region. Since our results strongly suggest the presence of a sub-pc-scale, free-free accretion disk, our main purpose in the present proposal is to investigate detailed absorption by the sub-pc-scale disk.

The full Cover Sheets (compressed post-script, typically 50kbytes) can be retrieved. Note that some proposals were reduced in extent by the Scientific Review Committee (e.g. by reducing the number of experiments), however the Cover Sheets contain the full proposal as submitted. Also note that AO4 proposals were submitted in October 2000, and information such as affiliations and contact details has changed for some proposers since that time.