Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Timing Pulsars in Globular Cluster NGC6441
Authors:
Frey, Lucille H.; Ransom, S.
Affiliation:
AA(Case Western Reserve University), AB(National Radio Astronomy Observatory)
Publication:
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #159.06; Bulletin of the American Astronomical Society, Vol. 38, p.1118
Publication Date:
12/2006
Origin:
AAS
Bibliographic Code:
2006AAS...20915906F

Abstract

We present timing solutions for two binary and two isolated millisecond pulsars in globular cluster NGC6441. Pulsar NGC6441A was discovered during a 1.4 GHz search with the Parkes radio telescope and NGC6441B-D were discovered during a 2 GHz search with the Green Bank Telescope. The spin down rate of NGC6441C was used to constrain the mass to light ratio of the cluster and show that the core mass-to-light ratio is typical for a globular cluster. Pulsar NGC6441A is a highly eccentric binary, allowing us to constrain the pulsar masses using relativistic effects. These constraints suggest a system of a 1.6 Msun pulsar and a 0.8 Msun companion with the possibility of a double neutron star within the errors. This project was supported by NRAO and the NSF REU progr
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints