A detailed kinematic study of 3C 84 and its connection to Gamma-rays

Abstract

3C 84 (NGC 1275) is the bright radio core of the Perseus Cluster. Even in the absence of strong relativistic effects, the source has been detected at Gamma-rays up to TeV energies. Despite its intensive study, the physical processes responsible for the high-energy emission in the source remain unanswered. We present a detailed kinematics study of the source and its connection to Gamma-ray emission. The sub-parsec scale radio structure is dominated by slow-moving features in both the eastern and western lanes of the jet. The jet appears to have accelerated to its maximum speed within less than 125 000 gravitational radii. The fastest reliably detected speed in the jet was ~0.9 c. This leads to a minimum Lorentz factor of ~1.35. Our analysis suggests the presence of multiple high-energy sites in the source. If Gamma-rays are associated with kinematic changes in the jet, they are being produced in both eastern and western lanes in the jet. Three Gamma-ray flares are contemporaneous with epochs where the slowly moving emission region splits into two sub-regions. We estimate the significance of these events being associated as ~2-3 sigma. We tested our results against theoretical predictions for magnetic reconnection-induced mini-jets and turbulence and find them compatible.

arXiv comment15 pages, 21 figures, 13 tables, Accepted to ApJ

References in corpus (51)

• A Search for "Dwarf" Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies
• Relativistic Jets in Active Galactic Nuclei
• The Internal-Collision-Induced Magnetic Reconnection and Turbulence (ICMART) Model of Gamma-Ray Bursts
• Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array
• Variable VHE gamma-ray emission from Markarian 501
• Turbulent, Extreme Multi-Zone Model for Simulating Flux and Polarization Variability in Blazars
• Fast TeV variability in blazars: jets in a jet
• The 1% Concordance Hubble Constant
• Kinematics of Parsec-Scale Jets of Gamma-Ray Blazars at 43~GHz within the VLBA-BU-BLAZAR Program
• Kinematics of the jet in M87 on scales of 100 -- 1000 Schwarzschild radii
• Reconnection-driven plasmoids in blazars: fast flares on a slow envelope
• Cold molecular gas in the Perseus cluster core - Association with X-ray cavity, Halpha filaments and cooling flow -
• Magnetic reconnection and stochastic plasmoid chains in high-Lundquist-number plasmas
• Fermi Discovery of Gamma-Ray Emission from NGC 1275
• Detection of significant cm to sub-mm band radio and gamma-ray correlated variability in Fermi bright blazars
• VLBA Absorption Imaging of Ionized Gas Associated with the Accretion Disk in NGC 1275
• A wide and collimated radio jet in 3C 84 on the scale of a few hundred gravitational radii
• Limb-Brightened Jet of 3C 84 Revealed by the 43-GHz Very-Long-Baseline-Array Observation
• Particle Energies and Filling Fractions of Radio Bubbles in Cluster Cores
• Radiative Properties of Reconnection-Powered Minijets in Blazars
• Detection of very-high energy γ-ray emission from NGC 1275 by the MAGIC telescopes
• Three-Dimensional Simulations of MHD Turbulence Behind Relativistic Shock Waves and Their Implications for GRBs
• Radially-Inflowing Molecular Gas in NGC 1275 Deposited by a X-ray Cooling Flow in the Perseus Cluster
• External Compton Radiation from Rapid Nonthermal Flares in Blazars
• VLBI Monitoring of 3C 84 (NGC 1275) in Early Phase of the 2005 Outburst
• Kinematics of the M87 jet in the collimation zone: gradual acceleration and velocity stratification
• Scenarios for ultrafast gamma-ray variability in AGN
• Magnetic Field Amplification and Saturation in Turbulence Behind a Relativistic Shock
• The ALMA Discovery of the Rotating Disk and Fast Outflow of Cold Molecular Gas in NGC 1275
• On the spine-layer scenario for the very high-energy emission of NGC 1275
• Discovery of a new subparsec counterjet in NGC 1275: the inclination angle and the environment
• Magnetic Field Amplification by Turbulence in A Relativistic Shock Propagating through An Inhomogeneous Medium
• Gamma-ray flaring activity of NGC 1275 in 2016-2017 measured by MAGIC
• Resolving Doppler-factor crisis in AGNs: non-steady magnetized outflows
• Detection of faint broad emission lines in type 2 AGN: II. On the measurement of the BH mass of type 2 AGN and the unified model
• Wavelet-based decomposition and analysis of structural patterns in astronomical images
• Spatially resolved origin of mm-wave linear polarization in the nuclear region of 3C 84
• KVN observations suggest multiple $\gamma$-ray emission regions in 3C 84
• Enhanced Polarized Emission from the One-Parsec-Scale Hotspot of 3C 84 as a Result of the Interaction with Clumpy Ambient Medium
• Rapid Gamma-ray variability of NGC 1275
• Exploring the connection between parsec-scale jet activity and broadband outbursts in 3C 279
• Evidence of jet-clump interaction: a flip of the radio jet head of 3C~84
• Revealing the Broad Line Region of NGC 1275: The Relationship to Jet Power
• Constraints on Circumnuclear Disk through Free-Free Absorption in the Nucleus of 3C 84 with KaVA and KVN at 43 and 86 GHz
• NGC 1275: an outlier of the black hole-host scaling relations
• VERA monitoring of the radio jet 3C 84 during 2007--2013: detection of non-linear motion
• Detection of multiple velocity components in partially overlapping emitting regions
• The young radio lobe of 3C 84: inferred gas properties in the central 10 parsec
• Using variability and VLBI to measure cosmological distances
• Fossil shell in 3C 84 as TeV $\gamma$-ray emitter and cosmic-ray accelerator
• Shock Dynamics In Relativistic Jets

Cited by in corpus (11)

• Ordered magnetic fields around the 3C 84 central black hole
• A multiband study and exploration of the radio wave - $\gamma$-ray connection in 3C 84
• Jet kinematics in the transversely stratified jet of 3C 84 A two-decade overview
• A persistent double nuclear structure in 3C 84
• The interaction between rising bubbles and cold fronts in cool core clusters
• Evidence for a toroidal magnetic field in the core of 3C 84
• Observational Evidence to Support a Dense Ambient Medium Shaping the Jet in 3C 84
• Probing the circumnuclear environment of NGC1275 with High-Resolution X-ray spectroscopy
• Evolution, speed, and precession of the parsec-scale jet in the 3C 84 radio galaxy
• Where within the 3C 84 jet are $\gamma$-rays produced?
• Detection of Compton scattering in the jet of 3C 84