AAS 207th Meeting, 8-12 January 2006
Session 116 The Black Hole-Spheroid Relation and Mergers
Poster, Wednesday, 9:20am-6:30pm, January 11, 2006, Exhibit Hall

## [116.02] J170902+641728: The little engine that could

N.A. Miller (NRAO), K.S. Anderson (NMSU)

J170902+641728 is a highly unusual galaxy. In ground-based optical images, it is unresolved (<1\arcsec) and thus appears to be a fairly faint star. However, sensitive radio continuum observations of the galaxy cluster A2255 associated it with a radio source. Although this would suggest the object is a quasar, its redshift (z=0.0896) derived from its optical spectrum reveals it to lie at the high end of A2255's velocity distribution. Decomposition of the spectrum reveals the presence of a broad line region and an implied black hole mass of ~5 \times 105 M\odot. Similarly, higher resolution radio observations made with the VLA+PT indicate the source is unresolved down to a linear size scale of under 100 pc. The presence of a moderately strong AGN in a compact and low mass galaxy makes J170902+641728 an intriguing object. We present the available data and discuss their implications.

Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.