Three Millisecond Pulsars in FERMI LAT Unassociated Bright Sources

Abstract

We searched for radio pulsars in 25 of the non-variable, unassociated sources in the Fermi LAT Bright Source List with the Green Bank Telescope at 820 MHz. We report the discovery of three radio and gamma-ray millisecond pulsars (MSPs) from a high Galactic latitude subset of these sources. All of the pulsars are in binary systems, which would have made them virtually impossible to detect in blind gamma-ray pulsation searches. They seem to be relatively normal, nearby (<=2 kpc) millisecond pulsars. These observations, in combination with the Fermi detection of gamma-rays from other known radio MSPs, imply that most, if not all, radio MSPs are efficient gamma-ray producers. The gamma-ray spectra of the pulsars are power-law in nature with exponential cutoffs at a few GeV, as has been found with most other pulsars. The MSPs have all been detected as X-ray point sources. Their soft X-ray luminosities of ~10^{30-31} erg/s are typical of the rare radio MSPs seen in X-rays.

Accepted for publication in ApJ Letters

References in corpus (20)

• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
• The Swift X-ray Telescope
• Fermi Large Area Telescope First Source Catalog
• TEMPO2, a new pulsar timing package. I: Overview
• The Parkes Multibeam Pulsar Survey: I. Observing and Data Analysis Systems, Discovery and Timing of 100 Pulsars
• Fermi Large Area Telescope Bright Gamma-ray Source List
• Fourier Techniques for Very Long Astrophysical Time Series Analysis
• A Hydrogen Atmosphere Spectral Model Applied to the Neutron Star X7 in the Globular Cluster 47 Tucanae
• Arecibo Pulsar Survey Using ALFA. I. Survey Strategy and First Discoveries
• Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars
• Chandra X-Ray Observations of Nineteen Millisecond Pulsars in the Globular Cluster 47 Tucanae
• High-Energy Emission From Millisecond Pulsars
• Population synthesis of radio and gamma-ray millisecond pulsars from the Galactic disk
• High-Redshift Cosmography
• Pulsar Timing for the Fermi Gamma-ray Space Telescope
• The Pulsar Contribution to the Gamma-Ray Background
• Gamma Ray Pulsars: Multiwavelength Observations
• Discovery of 10 pulsars in an Arecibo drift-scan survey
• The population of black widow pulsars

Cited by in corpus (134)

• Masses, Radii, and Equation of State of Neutron Stars
• Fermi Large Area Telescope Second Source Catalog
• The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
• High-precision timing of 42 millisecond pulsars with the European Pulsar Timing Array
• The North American Nanohertz Observatory for Gravitational Waves
• The NANOGrav 15-year Data Set: Observations and Timing of 68 Millisecond Pulsars
• Limits on the Stochastic Gravitational Wave Background from the North American Nanohertz Observatory for Gravitational Waves
• The International Pulsar Timing Array: Second data release
• Fifty Years of Pulsar Candidate Selection: From simple filters to a new principled real-time classification approach
• The First Fermi-LAT Catalog of Sources Above 10 GeV
• Observing pulsars and fast transients with LOFAR
• The Green Bank Northern Celestial Cap Pulsar Survey - I: Survey Description, Data Analysis, and Initial Results
• Constraining the Neutron Star Mass-Radius Relation and Dense Matter Equation of State with NICER. I. The Millisecond Pulsar X-ray Data Set
• Formation of black widows and redbacks -- two distinct populations of eclipsing binary millisecond pulsars
• The Third Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
• The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars
• Discovery of the Optical Counterparts to Four Energetic Fermi Millisecond Pulsars
• Disrupted Globular Clusters Can Explain the Galactic Center Gamma Ray Excess
• The Correlation between Dispersion Measure and X-ray Column Density from Radio Pulsars
• Gamma-Ray and Parsec-Scale Jet Properties of a Complete Sample of Blazars From the MOJAVE Program
• Surrounded by Spiders! New Black Widows and Redbacks in the Galactic Field
• The Green Bank Telescope 350 MHz Drift-scan Survey I: Survey Observations and the Discovery of 13 Pulsars
• Classification and Ranking of Fermi LAT Gamma-ray Sources from the 3FGL Catalog using Machine Learning Techniques
• Discovery of Nine Gamma-Ray Pulsars in Fermi-LAT Data Using a New Blind Search Method
• A LOFAR census of millisecond pulsars
• Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations
• X-ray follow-ups of XSSJ12270-4859: a low-mass X-ray binary with gamma ray FERMI-LAT association
• High-Precision Timing of 5 Millisecond Pulsars: Space Velocities, Binary Evolution and Equivalence Principles
• Constraints on the Emission Geometries and Spin Evolution of Gamma-ray Millisecond Pulsars
• The Green Bank North Celestial Cap Pulsar Survey III: 45 New Pulsar Timing Solutions
• Understanding the evolution of close binary systems with radio pulsars
• Radio Searches of Fermi LAT Sources and Blind Search Pulsars: The Fermi Pulsar Search Consortium
• Parkes radio searches of Fermi gamma-ray sources and millisecond pulsar discoveries
• A NICER View of PSR J1231$-$1411: A Complex Case
• Gamma-ray Pulsar Revolution
• A Metal-Rich Low-Gravity Companion to a Massive Millisecond Pulsar
• The High Time Resolution Universe Survey VI: An Artificial Neural Network and Timing of 75 Pulsars
• Pulsed Gamma Rays from the Original Millisecond and Black Widow Pulsars: a case for Caustic Radio Emission?
• Discovery of two millisecond pulsars in Fermi sources with the Nancay Radio Telescope
• The MeerTime Pulsar Timing Array -- A Census of Emission Properties and Timing Potential
• Discovery of a Gamma-ray Black Widow Pulsar by GPU-accelerated Einstein@Home
• NICER X-ray Observations of Seven Nearby Rotation-Powered Millisecond Pulsars
• The Extended Pulsar Magnetosphere
• Timing Gamma-ray Pulsars with the Fermi Large Area Telescope: Timing Noise and Astrometry
• Five New Millisecond Pulsars From a Radio Survey of 14 Unidentified Fermi-LAT Gamma-ray Sources
• Pulsar searches of Fermi unassociated sources with the Effelsberg telescope
• Evidence for gravitational quadrupole moment variations in the companion of PSR J2051-0827
• Six millisecond pulsars detected by the Fermi Large Area Telescope and the radio/gamma-ray connection of millisecond pulsars
• Gamma-ray Timing of Redback PSR J2339-0533: Hints for Gravitational Quadrupole Moment Changes
• The gamma-ray millisecond pulsar deathline, revisited - New velocity and distance measurements
• Discovery of an unidentified Fermi object as a black widow-like millisecond pulsar
• Unveiling the redback nature of the low-mass X-ray binary XSSJ1227.0-4859 through optical observations
• A NICER view of the 1.4 solar-mass edge-on pulsar PSR J0614-3329
• The High Time Resolution Universe Pulsar Survey IV: Discovery and polarimetry of millisecond pulsars
• Radio Detection of the Fermi LAT Blind Search Millisecond Pulsar J1311-3430
• Discovery of the millisecond pulsar PSR J2043+1711 in a Fermi source with the Nancay Radio Telescope
• PSR J1838-0537: Discovery of a young, energetic gamma-ray pulsar
• Optical Counterparts of Two Fermi Millisecond Pulsars: PSR J1301+0833 and PSR J1628-3205
• Discovery of the Optical/Ultraviolet/Gamma-ray Counterpart to the Eclipsing Millisecond Pulsar J1816+4510
• Observations and Modeling of the Companions of Short Period Binary Millisecond Pulsars: Evidence for High-Mass Neutron Stars
• Six New Millisecond Pulsars from Arecibo Searches of Fermi Gamma-Ray Sources
• The Green Bank North Celestial Cap Pulsar Survey. V. Pulsar Census and Survey Sensitivity
• Radio timing and optical photometry of the black widow system PSR J1518+0204C in the globular cluster M5
• New Black Widows and Redbacks in the Galactic Field
• The TRAPUM L-band survey for pulsars in Fermi-LAT gamma-ray sources
• Multiband Diagnostics of Unidentified 1FGL Sources with Suzaku and Swift X-ray Observations
• Detection and timing of gamma-ray pulsations from the $707$ Hz pulsar J0952$-$0607
• A New Flaring Black Widow Candidate and Demographics of Black Widow Millisecond Pulsars in the Galactic Field
• Low-radio-frequency eclipses of the redback pulsar J2215+5135 observed in the image plane with LOFAR
• Discovery of γ-ray pulsation and X-ray emission from the black widow pulsar PSR J2051-0827
• Orbital Phase Dependent Gamma-ray emissions from the Black Widow Pulsar
• The High Time Resolution Universe Pulsar Survey -- XVI. Discovery and timing of 40 pulsars from the southern Galactic plane
• The High Time Resolution Universe Survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companions
• A multi-wavelength view of the neutron star binary 1FGL J1417.7--4402: A progenitor to canonical millisecond pulsars
• Constraining the Galactic millisecond pulsar population using Fermi Large Area Telescope
• Discovery of a Redback Millisecond Pulsar Candidate: 3FGL J0212.1+5320
• An Observationally-Derived Kick Distribution for Neutron Stars in Binary Systems
• The surface of rapidly-rotating neutron stars: implications to neutron star parameter estimation
• The NANOGrav 11-Year Data Set: Arecibo Observatory Polarimetry And Pulse Microcomponents
• The Einstein@Home Gamma-Ray Pulsar Survey II. Source Selection, Spectral Analysis and Multi-wavelength Follow-up
• The High Time Resolution Universe Pulsar Survey - VII: discovery of five millisecond pulsars and the different luminosity properties of binary and isolated recycled pulsars
• PSR J2030+3641: radio discovery and gamma-ray study of a middle-aged pulsar in the now identified Fermi-LAT source 1FGL J2030.0+3641
• On the non-detection of gamma-rays from energetic millisecond pulsars -- dependence on viewing geometry
• Toward Identifying the Unassociated Gamma-ray Source 1FGL J1311.7-3429 with X-ray and Optical Observations
• Cool white dwarf companions to four millisecond pulsars
• Optimized Blind Gamma-ray Pulsar Searches at Fixed Computing Budget
• Classification of New X-ray Counterparts for Fermi Unassociated Gamma Ray Sources Using the Swift X-Ray Telescope
• Timing of Eight Binary Millisecond Pulsars Found with Arecibo in Fermi-LAT Unidentified Sources
• Radio Timing and Optical Photometry of the Black Widow System PSR J1953+1846A in the Globular Cluster M71
• Suzaku X-ray Follow-up Observations of Seven Unassociated Fermi-LAT Gamma-ray Sources at High Galactic Latitudes
• The Green Bank North Celestial Cap Survey. VII. 12 New Pulsar Timing Solutions
• 2FGL J0846.0+2820: A new neutron star binary with a giant secondary and variable $\gamma$-ray emission
• Study of 72 pulsars discovered in the PALFA survey: Timing analysis, glitch activity, emission variability, and a pulsar in an eccentric binary
• Discovery of Soft X-ray Pulsations from PSR J1231-1411 using NICER
• Timing of Five PALFA-Discovered Millisecond Pulsars
• Multi-scale time- and frequency-domain likelihood analysis with photon weights
• Four Highly Dispersed Millisecond Pulsars Discovered in the Arecibo PALFA Galactic Plane Survey
• Pulsar Candidates Toward Fermi Unassociated Sources
• Ordinary X-rays from Three Extraordinary Millisecond Pulsars: XMM-Newton Observations of PSRs J0337+1715, J0636+5129, and J0645+5158
• PulsarX: a new pulsar searching package -I. A high performance folding program for pulsar surveys
• Spectral characterization of the non-thermal X-ray emission of gamma-ray pulsars
• Unraveling the Nature of Unidentified High Galactic Latitude Fermi/LAT Gamma-ray Sources with Suzaku
• X-ray bounds on the r-mode amplitude in millisecond pulsars
• Discovery, Timing, and Multiwavelength Observations of the Black Widow Millisecond Pulsar PSR J1555-2908
• The Discovery of Six Recycled Pulsars from the Arecibo 327-MHz Drift-Scan Pulsar Survey
• Population study for gamma-ray pulsars: (III) Radiation characteristics and viewing geometry
• High-energy pulsations and phase-resolved spectroscopy of PSR J1741-2054
• Timing stability of black widow pulsars
• Strengthening the bounds on the r-mode amplitude with X-ray observations of millisecond pulsars
• High energy gamma-ray emission from compact galactic sources in the context of observations with the next generation Cherenkov Telescope Arrays
• A search for radio pulsations from neutron star companions of four subdwarf B stars
• Prospects for the detection of high-energy (E>25 GeV) Fermi pulsars with the Cherenkov Telescope Array
• Gemini optical observations of binary millisecond-pulsars
• Inverse Mapping of Polarised Optical Emission from Pulsars : Basic Formulation and Determination of Emission Altitude
• A 350-MHz Green Bank Telescope Survey of Unassociated Fermi LAT Sources: Discovery and Timing of Ten Millisecond Pulsars
• Phase-Averaged Gamma-Ray Spectra from MSPs
• Search for gamma-ray emission from four accreting millisecond pulsars with Fermi/LAT
• Extracting the unresolved pulsar contribution to the gamma-ray background
• Radio Millisecond pulsars
• Population study for gamma-ray pulsars; II Millisecond pulsars
• Searching for X-ray Pulsations from Neutron Stars Using NICER
• Fermi-LAT searches for gamma-ray pulsars
• Pulsar Polarization Array Limits on Ultralight Axion-like Dark Matter
• Accretion, Ablation and Propeller Evolution in Close Millisecond Pulsar Binary Systems
• A census of galactic spider binary millisecond pulsars with the Nançay Radio Telescope
• Targeted millisecond pulsar surveys of Fermi gamma-ray sources with LOFAR
• Suzaku Observation of Abell 1555 and Abell 1558: Searching for Non-thermal Emission from Large Scale Structure Formation
• Shapiro Delay Measurements from Fifteen Years of PSR J1231$-$1411 Radio Observations
• Pulsars are cool. Seriously
• Classifying Unidentified Gamma-ray Sources
• The Gamma-ray Sky with Fermi
• Ultra-wide Bandwidth Observations of 19 pulsars with Parkes telescope
• Radio counterparts of gamma-ray pulsars