A Binary Millisecond Pulsar in Globular Cluster NGC6544

Abstract

We report the detection of a new 3.06 ms binary pulsar in the globular cluster NGC6544 using a Fourier-domain ``acceleration'' search. With an implied companion mass of ~0.01 solar masses and an orbital period of only P_b~1.7 hours, it displays very similar orbital properties to many pulsars which are eclipsed by their companion winds. The orbital period is the second shortest of known binary pulsars after 47 Tuc R. The measured flux density of 1.3 +/- 0.4 mJy at 1332 MHz indicates that the pulsar is almost certainly the known steep-spectrum point source near the core of NGC6544.

Accepted by ApJ Letters on 11 October 2000, 5 pages

References in corpus (5)

• Observations of 20 millisecond pulsars in 47 Tucanae at 20 cm
• Formation of Short-Period Binary Pulsars in Globular Clusters
• The Parkes Multibeam Pulsar Survey: PSR J1811-1736 - a pulsar in a highly eccentric binary system
• Deep Radio Imaging of Globular Clusters and the Cluster Pulsar Population
• Binary Eclipsing Millisecond Pulsars: A Decade of Timing

Cited by in corpus (32)

• Binary and Millisecond Pulsars
• Fourier Techniques for Very Long Astrophysical Time Series Analysis
• The Timing of Nine Globular Cluster Pulsars
• Relativistic Binaries in Globular Clusters
• Binary and Millisecond Pulsars
• A Brown Dwarf Companion for the Accreting Millisecond Pulsar SAX J1808.4-3658
• Discovery of short-period binary millisecond pulsars in four globular clusters
• A New Search Technique for Short Orbital Period Binary Pulsars
• On the disruption of pulsar and X-ray binaries in globular clusters
• A Fourier Domain "Jerk" Search for Binary Pulsars
• Binary and Millisecond Pulsars at the New Millennium
• Luminosities of recycled radio pulsars in globular clusters
• Discovery of Two New Pulsars in 47 Tucanae (NGC 104)
• Six New Millisecond Pulsars from Arecibo Searches of Fermi Gamma-Ray Sources
• A Deep Search for Pulsations from the Nearby Isolated Neutron Star RX J1856.5-3754
• Radio pulse search and X-Ray monitoring of SAX J1808.4-3658: What Causes its Orbital Evolution?
• A Highly Eccentric 3.9-Millisecond Binary Pulsar in the Globular Cluster NGC 6652
• The FAST discovery of an Eclipsing Binary Millisecond Pulsar in the Globular Cluster M92 (NGC 6341)
• A Census of X-ray Millisecond Pulsars in Globular Clusters
• Inferring the composition of super-Jupiter mass companions of pulsars with radio line spectroscopy
• Exploiting Orbital Constraints from Optical Data to Detect Binary Gamma-ray Pulsars
• A GPU implementation of the Correlation Technique for Real-time Fourier Domain Pulsar Acceleration Searches
• How to detect the shortest-period binary pulsars in the era of LISA
• The impact of surface temperature inhomogeneities on quiescent neutron star radius measurements
• Close-in Exoplanets as Candidates of Strange Quark Matter Objects
• Relativistic Binaries in Globular Clusters
• Radio pulsar populations
• Searching for Millisecond Pulsars: Surveys, Techniques and Prospects
• A Search for Pulsars in Steep Spectrum Radio Sources
• Search for Intermittent X-ray Pulsations from Neutron Stars in Low Mass X-ray Binaries
• Repeating X-ray bursts: Interaction between a neutron star and clumps partially disrupted from a planet
• Searching for pulsars with phase characteristics