Two Millisecond Pulsars Discovered in Globular Cluster M28

Author:
Douglas, Andrew, Astronomy, University of Virginia
Advisor:
Ransom, Scott
Abstract:

We report the discovery of two new black widow millisecond pulsars in the globular cluster M28 with the MeerKAT telescope. J1824-2452M (M28M) is a 4.78 ms pulsar in a 4 hour orbit. J1824-2452N (M28N) is a 3.35-ms pulsar with a 4.45 hour orbit. Both pulsars are at a dispersion measure of 119.30 pc cm^-3 and appear to be black widow systems which do not show strong eclipses or orbital variation. We expect additional pulsars will be found in M28 with more sensitive observations.

Degree:
BS (Bachelor of Science)
Keywords:
MeerKAT, M28, pulsar
Language:
English
Issued Date:
2021/05/14