Exploiting Orbital Constraints from Optical Data to Detect Binary Gamma-ray Pulsars

Abstract

It is difficult to discover pulsars via their gamma-ray emission because current instruments typically detect fewer than one photon per million rotations. This creates a significant computing challenge for isolated pulsars, where the typical parameter search space spans wide ranges in four dimensions. It is even more demanding when the pulsar is in a binary system, where the orbital motion introduces several additional unknown parameters. Building on earlier work by Pletsch & Clark (arXiv:1408.6962), we present optimal methods for such searches. These can also incorporate external constraints on the parameter space to be searched, for example, from optical observations of a presumed binary companion. The solution has two parts. The first is the construction of optimal search grids in parameter space via a parameter-space metric, for initial semicoherent searches and subsequent fully coherent follow-ups. The second is a method to demodulate and detect the periodic pulsations. These methods have different sensitivity properties than traditional radio searches for binary pulsars and might unveil new populations of pulsars.

arXiv comment33 pages, 7 figures, published in ApJ

References in corpus (75)

• The NumPy array: a structure for efficient numerical computation
• Gaia Data Release 2. Summary of the contents and survey properties
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• The ATNF Pulsar Catalogue
• The USNO-B Catalog
• Relativistic Shapiro delay measurements of an extremely massive millisecond pulsar
• The ATNF Pulsar Catalogue
• Fermi Large Area Telescope Fourth Source Catalog
• TEMPO2, a new pulsar timing package. I: Overview
• Tempo2, a new pulsar timing package. II: The timing model and precision estimates
• Search templates for gravitational waves from inspiraling binaries: Choice of template spacing
• Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
• Precision Timing Measurements of PSR J1012+5307
• Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars
• Observations of 20 millisecond pulsars in 47 Tucanae at 20 cm
• Searching for periodic sources with LIGO. II: Hierarchical searches
• Gravitational waves from coalescing binaries: detection strategies and Monte Carlo estimation of parameters
• Formation of black widows and redbacks -- two distinct populations of eclipsing binary millisecond pulsars
• The Parkes Multibeam Pulsar Survey: V. Finding binary and millisecond pulsars
• Eight gamma-ray pulsars discovered in blind frequency searches of Fermi LAT data
• A stochastic template placement algorithm for gravitational wave data analysis
• PSR J1756-2251: a new relativistic double neutron star system
• Improving Sensitivity to Weak Pulsations with Photon Probability Weighting
• The Orbits of the Gamma-ray Binaries LS I +61 303 and LS 5039
• A New Search Technique for Short Orbital Period Binary Pulsars
• Classification and Ranking of Fermi LAT Gamma-ray Sources from the 3FGL Catalog using Machine Learning Techniques
• Optical spectroscopy and demographics of redback millisecond pulsar binaries
• Discovery of Nine Gamma-Ray Pulsars in Fermi-LAT Data Using a New Blind Search Method
• Recent searches for continuous gravitational waves
• Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations
• PSR J2021+4026 in the Gamma Cygni region: the first variable gamma-ray pulsar seen by the Fermi LAT
• A Fourier Domain "Jerk" Search for Binary Pulsars
• LOFAR discovery of the fastest-spinning millisecond pulsar in the Galactic field
• Gamma-ray Pulsar Revolution
• The Einstein@Home Gamma-ray Pulsar Survey. I. Search Methods, Sensitivity and Discovery of New Young Gamma-ray Pulsars
• Pulsed Gamma Rays from the Original Millisecond and Black Widow Pulsars: a case for Caustic Radio Emission?
• Multiwavelength monitoring and X-ray brightening of Be X-ray binary PSR J2032+4127/MT91 213 on its approach to periastron
• First all-sky search for continuous gravitational waves from unknown sources in binary systems
• A Binary Millisecond Pulsar in Globular Cluster NGC6544
• Timing Gamma-ray Pulsars with the Fermi Large Area Telescope: Timing Noise and Astrometry
• The Einstein@Home search for radio pulsars and PSR J2007+2722 discovery
• Search for Continuous Gravitational Waves: Optimal StackSlide method at fixed computing cost
• Building a stochastic template bank for detecting massive black hole binaries
• Gravitational waves from Sco X-1: A comparison of search methods and prospects for detection with advanced detectors
• Gamma-ray Timing of Redback PSR J2339-0533: Hints for Gravitational Quadrupole Moment Changes
• Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
• Pulsed Gamma-rays from the millisecond pulsar J0030+0451 with the Fermi Large Area Telescope
• An all-sky search algorithm for continuous gravitational waves from spinning neutron stars in binary systems
• 1FGL J0523.5-2529: A New Probable Gamma-ray Pulsar Binary
• 2FGL J1653.6-0159: A New Low in Evaporating Pulsar Binary Periods
• Detection and timing of gamma-ray pulsations from the $707$ Hz pulsar J0952$-$0607
• Radio Pulsars in Terzan 5
• Discovery of Pulsed Gamma Rays from the Young Radio Pulsar PSR J1028-5819 with the Fermi Large Area Telescope
• Einstein@Home Discovery of a PALFA Millisecond Pulsar in an Eccentric Binary Orbit
• Searching for continuous gravitational wave sources in binary systems
• Extending the Event-weighted Pulsation Search to Very Faint Gamma-ray Sources
• The Braking Index of a Radio-quiet Gamma-ray Pulsar
• A binary counterpart for 2FGL J2039.6-5620
• Discovery of a Redback Millisecond Pulsar Candidate: 3FGL J0212.1+5320
• A Likely Redback Millisecond Pulsar Counterpart of 3FGL J0838.8-2829
• Implementation of the frequency-modulated sideband search method for gravitational waves from low mass X-ray binaries
• Event Weighted Tests for Detecting Periodicity in Photon Arrival Times
• A fast search strategy for gravitational waves from low-mass X-ray binaries
• PSR J1906+0722: An Elusive Gamma-ray Pulsar
• Optimized Blind Gamma-ray Pulsar Searches at Fixed Computing Budget
• A multi-wavelength investigation of candidate milli-second pulsars in unassociated $\gamma$-ray sources
• Multi-wavelength observations of a new redback millisecond pulsar candidate: 3FGL J0954.8-3948
• A millisecond pulsar candidate in a 21-hr orbit: 3FGL J0212.1+5320
• Discovery of an ultracompact gamma-ray millisecond pulsar binary candidate
• The Tail of PSR J0002+6216 and the Supernova Remnant CTB 1
• A New Likely Redback Millisecond Pulsar Binary with a Massive Neutron Star: 4FGL J2333.1--5527
• Spherical ansatz for parameter-space metrics
• Searches for millisecond pulsar candidates among the unidentified Fermi objects
• Efficient blind search: Optimal power of detection under computational cost constraints
• Efficient generation and optimization of stochastic template banks by a neighboring cell algorithm

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• Discovery and timing of three millisecond pulsars in radio and gamma-rays with the GMRT and Fermi-LAT
• Discovery, Timing, and Multiwavelength Observations of the Black Widow Millisecond Pulsar PSR J1555-2908
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• 4FGL J1120.0-2204: A Unique Gamma-ray Bright Neutron Star Binary with an Extremely Low Mass Proto-White Dwarf
• Is the black-widow pulsar PSR J1555-2908 in a hierarchical triple system?
• Luminous Optical and X-ray Flaring of the Putative Redback Millisecond Pulsar 1FGL J0523.5$-$2529
• The optimal lattice quantizer in nine dimensions
• 1RXH J082623.6-505741: a new long-period cataclysmic variable with an evolved donor and a low mass transfer rate
• Improved all-sky search method for continuous gravitational waves from unknown neutron stars in binary systems
• Template banks based on ${\mathbb{Z}}^n$ and $A_n^{\ast }$ lattices
• Radio and gamma-ray timing of TRAPUM L-band Fermi pulsar survey discoveries
• Einstein@Home Searches for Gamma-ray Pulsars in the Inner Galaxy
• An updated constraint for the Gravitational Wave Background from the Gamma-ray Pulsar Timing Array
• Search of nearby resolved neutron stars among optical sources