Nial's Home Page

Some of my Recent(ish) Research

The Hubble constant from HST observations of M96

I have recently published a paper on the distance to M96 in the Leo I group (ground-based photograph of centre of group). You can view a ground-based CCD image of the whole galaxy taken with the 2.5m Isaac Newton Telescope on La Palma, and a portion (about 25%) of the HST image showing resolved stars in a spiral arm.

If you want to see how the 3 pictures fit together I have created a montage.

You can even read the paper (in compressed postscript).

Calibration of the Cepheid PL Relation

I have done some work on the calibration of the Cepheid PL relation, particularly using the Cepheids in the Large Magellanic Cloud. Here's an example of the PL relation one finds. See http://xxx.lanl.gov/abs/astro-ph/9812356 for further details.

Observations of the Crab nebula

These observations are of the central region of the nebula around the pulsar and show the evolution of the synchrotron wisps. A paper describing them recently appeared in the New Astronomy journal and is available electronically (including a movie).


Some more pretty pics

And finally, here are some more pretty pictures (click to get larger versions)!

This picture is of the nearby barred spiral galaxy M95 or NGC3351. It was taken with the LDSS-2 instrument in imaging mode, on the 4.2m William Herschel Telescope on La Palma. Images taken in three filters (red, green and blue) were combined to create this "true colour" picture.

The Leo triplet of galaxies, M105, NGC3384 and NGC3389. CCD images obtained on the 2.5m Isaac Newton Telescope.

Some CCD images of fields in the Large Magellanic Cloud (taken at the 1.54m Danish telescope at La Silla).


Last Modified: 18th December, 1999

Published by: Nial Tanvir, nrt@ast.cam.ac.uk