Discovery of the Galactic High-Mass Gamma-ray Binary 4FGL J1405.1-6119

Abstract

We report the identification from multi-wavelength observations of the Fermi Large Area Telescope (LAT) source 4FGL J1405.1-6119 (= 3FGL J1405.4-6119) as a high-mass gamma-ray binary. Observations with the LAT show that gamma-ray emission from the system is modulated at a period of 13.7135 +/- 0.0019 days, with the presence of two maxima per orbit with different spectral properties. X-ray observations using the Neil Gehrels Swift Observatory X-ray Telescope (XRT) show that X-ray emission is also modulated at this period, but with a single maximum that is closer to the secondary lower-energy gamma-ray maximum. A radio source, coincident with the X-ray source, is also found from Australia Telescope Compact Array (ATCA) observations, and the radio emission is modulated on the gamma-ray period with similar phasing to the X-ray emission. A large degree of interstellar obscuration severely hampers optical observations, but a near-infrared counterpart is found. Near-infrared spectroscopy indicates an O6 III spectral classification. This is the third gamma-ray binary to be discovered with the Fermi LAT from periodic modulation of the gamma-ray emission, the other two sources also have early O star, rather than Be star, counterparts. We consider at what distances we can detect such modulated gamma-ray emission with the LAT, and examine constraints on the gamma-ray binary population of the Milky Way.

arXiv commentAccepted for publication in the Astrophysical Journal

References in corpus (53)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• On the Absorption of X-rays in the Interstellar Medium
• The Swift X-ray Telescope
• Atomic Data for Astrophysics. II. New Analytic Fits for Photoionization Cross Sections of Atoms and Ions
• Fermi Large Area Telescope Second Source Catalog
• Fermi Large Area Telescope First Source Catalog
• Understanding the Lomb-Scargle Periodogram
• VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
• An online repository of Swift/XRT light curves of GRBs
• The Relation Between Optical Extinction and Hydrogen Column Density in the Galaxy
• Assessing statistical significance of periodogram peaks
• 3FHL: The Third Catalog of Hard Fermi-LAT Sources
• Magnetic Fields of Accreting X-Ray Pulsars with the Rossi X-Ray Timing Explorer
• The Australia Telescope Compact Array Broadband Backend (CABB)
• Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
• UBVJHK synthetic photometry of Galactic O stars
• A Medium Resolution Near-Infrared Spectral Atlas of O and Early B Stars
• Improving Sensitivity to Weak Pulsations with Photon Probability Weighting
• Classification and Ranking of Fermi LAT Gamma-ray Sources from the 3FGL Catalog using Machine Learning Techniques
• Study of the Spectral and Temporal Characteristics of X-Ray Emission of the Gamma-Ray Binary LS 5039 with Suzaku
• Periodic Emission from the Gamma-ray Binary 1FGL J1018.6-5856
• Application of the Gaussian mixture model in pulsar astronomy -- pulsar classification and candidates ranking for {\it Fermi} 2FGL catalog
• A giant radio flare from Cygnus X-3 with associated Gamma-ray emission
• Long-term monitoring of the high-energy gamma-ray emission from LS I +61° 303 and LS 5039
• The Einstein@Home Gamma-ray Pulsar Survey. I. Search Methods, Sensitivity and Discovery of New Young Gamma-ray Pulsars
• Very Long-term Optical Variability of High Mass X-ray Binaries in the SMC
• Detection of gamma rays of likely jet origin in Cygnus X-1
• Modelling the high-energy emission from gamma-ray binaries using numerical relativistic hydrodynamics
• Periastron Observations of TeV Gamma-Ray Emission from a Binary System with a 50-year Period
• A Luminous Gamma-ray Binary in the Large Magellanic Cloud
• Superorbital Periodic Modulation in Wind-Accretion High-Mass X-ray Binaries from Swift BAT Observations
• High-energy gamma-rays from Cyg X-1
• Gamma-ray observations of the microquasars Cygnus X-1, Cygnus X-3, GRS 1915+105, and GX 339-4 with the Fermi Large Area Telescope
• A comprehensive study of high-energy gamma-ray and radio emission from Cyg X-3
• Exploring the connection between the stellar wind and the non-thermal emission in LS 5039
• A spectroscopic investigation of the O-type star population in four Cygnus OB associations. II. Determination of the fundamental parameters
• Radio Follow-up on all Unassociated Gamma-ray Sources from the Third Fermi Large Area Telescope Source Catalog
• A Luminous and Highly-variable Gamma-ray Flare Following the 2017 Periastron of PSR B1259-63/LS 2883
• Sizing up the population of gamma-ray binaries
• Deep Chandra observations of TeV binaries II: LS 5039
• DEM L241, a Supernova Remnant containing a High-Mass X-ray Binary
• The Einstein@Home Gamma-Ray Pulsar Survey II. Source Selection, Spectral Analysis and Multi-wavelength Follow-up
• Light curve and SED modeling of the gamma-ray binary 1FGL J1018.6$-$5856: constraints on the orbital geometry and relativistic flow
• GeV detection of HESS J0632+057
• A Detailed Observation of a LMC Supernova Remnant DEM L241 with XMM-Newton
• Investigating the X-ray counterparts to unidentified sources in the 1000-orbit INTEGRAL/IBIS catalogue
• Swift observations of 1FGL J1018.6-5856
• Diverse Long-Term Variability of Five Candidate High-Mass X-ray Binaries from Swift Burst Alert Telescope Observations
• Refining the origins of the gamma-ray binary 1FGL J1018.6-5856
• Very high energy Fermi/LAT detection of HESS J0632+057
• Superorbital modulation at GeV energies in the gamma-ray binary LS I +61 303
• Simultaneous long-term monitoring of LS I +61°303 by OVRO and Fermi-LAT

Cited by in corpus (23)

• Incremental Fermi Large Area Telescope Fourth Source Catalog
• A catalogue of high-mass X-ray binaries in the Galaxy: from the INTEGRAL to the Gaia era
• Advances in Understanding High-Mass X-ray Binaries with INTEGRAL and Future Directions
• A new radio census of neutron star X-ray binaries
• Relativistic fluid modelling of gamma-ray binaries. I. The model
• Overview of non-transient gamma-ray binaries and prospects for the Cherenkov Telescope Array
• Modelling the interaction between relativistic and non-relativistic winds in binary pulsar systems: strong magnetization of the pulsar wind
• A dynamical and radiation semi-analytical model of pulsar-star colliding winds along the orbit: Application to LS 5039
• Gamma-ray Eclipses and Orbital Modulation Transitions in the Candidate Redback 4FGL J1702.7-5655
• Multi-wavelength observations of PSRJ 2032+4127 during the 2017 periastron passage
• An update on Fermi-LAT transients in the Galactic plane, including strong activity of Cygnus X-3 in mid-2020
• X-ray and gamma-ray orbital variability from the gamma-ray binary HESS J1832-093
• Search for new cosmic-ray acceleration sites within the 4FGL catalog Galactic plane sources
• Modelling the correlated keV/TeV light curves of Be/gamma-ray binaries
• Searches for Pulsar-like Candidates from Unidentified Objects in the Third Catalog of Hard Fermi-LAT (3FHL) sources with Machine Learning Techniques
• The Galactic high mass X-ray binary population with Fermi -LAT
• NuSTAR and XMM-Newton observations of the binary 4FGL J1405.1-6119. A $\gamma$-ray emitting microquasar?
• A blazar as the likely counterpart to 4FGL J0647.7-4418 instead of a gamma-ray binary
• Probing the Properties of the Pulsar Wind in the Gamma-Ray Binary HESS J0632+057 with NuSTAR and VERITAS Observations
• A multi-wavelength study of the gamma-ray binary candidate HESS J1832-093
• Possible TeV $\gamma$-ray binary origin of HESS J1828-099
• Polarization study of gamma-ray binary
• Orbital Phase-resolved Analysis of X-ray and Gamma-ray Observations of the High-Mass Gamma-ray Binary 4FGL J1405.1-6119