NICMOS and VLBA observations of the gravitational lens system B1933+503

Details NICMOS and VLBA observations of the gravitational lens system B1933+503 NICMOS and VLBA observations of the gravitational lens system B1933+503

1998-10-28

arxiv.org/abs/astro-ph/9810452v1

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures, submitted to MNRAS

Scientific paper

10.1046/j.1365-8711.1999.02285.x

NICMOS observations of the complex gravitational lens system B1933+503 reveal infrared counterparts to two of the inverted spectrum radio images. The infrared images have arc-like structures. The corresponding radio images are also detected in a VLBA map made at 1.7 GHz with a resolution of 6 mas. We fail to detect two of the four inverted radio spectrum components with the VLBA even though they are clearly visible in a MERLIN map at the same frequency at a different epoch. The absence of these two components could be due to rapid variability on a time-scale less than the time delay, or to broadening of the images during propagation of the radio waves through the ISM of the lensing galaxy to an extent that they fall below the surface brightness detectability threshold of the VLBA observations. The failure to detect the same two images with NICMOS is probably due to extinction in the ISM of the lensing galaxy.

Affiliated with

Also associated with

No associations

Rating

NICMOS and VLBA observations of the gravitational lens system B1933+503 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with NICMOS and VLBA observations of the gravitational lens system B1933+503, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NICMOS and VLBA observations of the gravitational lens system B1933+503 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-542832