Discovery of Another Possible Voorwerp
ATel #4185; R. Steinberg (Drexel University)
on 19 Jun 2012; 03:09 UT
Credential Certification: Richard Steinberg (steinberg@drexel.edu)
Subjects: Optical, AGN, Quasar
Discovery of a large object close to the spiral galaxy IC 2497 in Leo
Minor was reported by C. Lintott et al. http://arxiv.org/abs/0906.5304
using data from the Sloan Digital Sky Survey. The object, now known as
Hanny's Voorwerp, is not definitively understood, but has been
hypothesized to be a result of interaction of radiation from a transient
bright quasar event in the nearby galaxy with circumgalactic material.
We report here the discovery of a somewhat similar galaxy-sized green
object near the z=.0583 Sc galaxy PGC86888. Like Hanny's Voorwerp, the
object appears bright in the SDSS g band, which may be an indication of
the presence of unusually strong OIII 4959-5007 emission lines.
An RGB image (3 hours for each of the three filters) was obtained with a
0.3 m reflector at the Blue Mountain Vista Observatory (PA). The image
is available at the link below.
Coordinates (J2000) of the brightest component of the object are
(RA,Dec) = (136.26911,32.62030).
Follow up spectral observations are requested.
New Voorwerp
