LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method

Details LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method

1995-11-28

arxiv.org/abs/astro-ph/9511137v1

Astronomy and Astrophysics

Astrophysics

27 pages, uuencoded, gzip compressed postscript

Scientific paper

10.1086/177401

We present a new algorithm for inverting poorly resolved gravitational lens systems using the maximum entropy method (MEM). We test the method with simulations and then apply it to an 8 GHz VLA map of the radio ring lens MG1654+134. We model the lens as a singular isothermal sphere embedded in an external shear field and find the critical radius of the lens is $b=0\parcs9820$, the dimensionless shear is $\gamma=0.0771$, and the position angle of the shear is $\theta=100\pdeg8$. These results are consistent with the results obtained by Kochanek (1995) using a complementary inversion algorithm based on Clean.

Affiliated with

Also associated with

No associations

Rating

LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method 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 LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LensMEM: A Gravitational Lens Inversion Algorithm Using the Maximum Entropy Method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-628149