NuSTAR, Swift, and GROND observations of the flaring MeV blazar: PMN J0641$-$0320

Abstract

MeV blazars are a sub--population of the blazar family, exhibiting larger--than--average jet powers, accretion luminosities and black hole masses. Because of their extremely hard X--ray continua, these objects are best studied in the X-ray domain. Here, we report on the discovery by the $Fermi$ Large Area Telescope and subsequent follow-up observations with $NuSTAR$, $Swift$ and GROND of a new member of the MeV blazar family: PMN J0641$-$0320. Our optical spectroscopy provides confirmation that this is a flat--spectrum radio quasar located at a redshift of $z=1.196$. Its very hard $NuSTAR$ spectrum (power--law photon index of $\sim$1 up to $\sim$80 keV) indicates that the emission is produced via inverse Compton scattering off photons coming from outside the jet.The overall spectral energy distribution of PMN J0641$-$0320 is typical of powerful blazars and by reproducing it with a simple one-zone leptonic emission model we find the emission region to be located either inside the broad line region or within the dusty torus.

arXiv commentSubmitted to ApJ, comments welcome

References in corpus (49)

• The Wide-field Infrared Survey Explorer (WISE): Mission Description and Initial On-orbit Performance
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Unified Schemes for Radio-Loud Active Galactic Nuclei
• 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 Nuclear Spectroscopic Telescope Array (NuSTAR) Mission
• General Relativistic Magnetohydrodynamic Simulations of Magnetically Choked Accretion Flows around Black Holes
• The Second Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
• The 70 Month Swift-BAT All-Sky Hard X-Ray Survey
• The Third Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
• Canonical high power blazars
• The power of blazar jets
• The power of relativistic jets is larger than the luminosity of their accretion disks
• GROND - a 7-channel imager
• Constraining Emission Models of Luminous Blazar Sources
• Relativistic Jets Shine through Shocks or Magnetic Reconnection?
• Swift BAT Survey of AGN
• Calibration of the NuSTAR High Energy Focusing X-ray Telescope
• Spectroscopy of The Largest Ever Gamma-ray Selected BL Lac Sample
• The 2175 A dust feature in a Gamma Ray Burst afterglow at redshift 2.45
• On Pair Content and Variability of Sub-Parsec Jets in Quasars
• The Palermo Swift-BAT hard X-ray catalogue III. Results after 54 months of sky survey
• Identification of the infrared non-thermal emission in Blazars
• Fermi/LAT broad emission line blazars
• The spectrum of the Broad Line Region and the high-energy emission of powerful blazars
• The WISE Blazar-Like Radio-Loud Sources: An All-Sky Catalog Of Candidate Gamma-Ray Blazars
• Chasing the heaviest black holes of jetted Active Galactic Nuclei
• Signatures of synchrotron emission and of electron acceleration in the X-ray spectra of Mrk 421
• Infrared Colors of the gamma-ray detected blazars
• The 60-month all-sky BAT Survey of AGN and the Anisotropy of Nearby AGN
• Galaxy Clusters in the Swift/BAT era: Hard X-rays in the ICM
• On the Nature of MeV-blazars
• Blazars in the early Universe
• Compton rockets and the minimum power of relativistic jets
• Australia Telescope Compact Array observations of Fermi unassociated sources
• The role of relativistic jets in the heaviest and most active supermassive black holes at high redshift
• Blazar candidates beyond redshift 4 observed by Swift
• Unveiling the nature of the unidentified gamma-ray sources III: gamma-ray blazar-like counterparts at low radio frequencies
• The Fermi All-sky Variability Analysis: A list of flaring gamma-ray sources and the search for transients in our Galaxy
• The HST Survey of BL Lacertae Objects: Morphological Properties of Low redshift Host Galaxies
• Jet enhanced accretion growth of supermassive black holes
• SDSS J102623.61+254259.5: the second most distant blazar at z=5.3
• The Host Galaxies of Radio-Loud AGN: The Black Hole--Galaxy Connection
• BAT X-ray Survey - I: Methodology and X-ray Identification
• NuSTAR detection of the blazar B2 1023+25 at redshift 5.3
• Blazars spectral properties at 74 MHz
• SDSS J114657.79+403708.6: the third most distant blazar at z=5.0
• Accretion Discs in Blazars
• NuSTAR and multifrequency study of the two high-redshift blazars S5 0836+710 and PKS 2149-306
• Discovery of an Extreme MeV Blazar with the Swift Burst Alert Telescope

Cited by in corpus (17)

• The 105 month Swift-BAT all-sky hard X-ray survey
• Science with e-ASTROGAM (A space mission for MeV-GeV gamma-ray astrophysics)
• The Central Engines of Fermi Blazars
• General Physical Properties of CGRaBS Blazars
• Blazars at the Cosmic Dawn
• NuSTAR perspective on high-redshift MeV blazars
• Multiwavelength Study of High-Redshift Blazars
• X-ray absorption towards high-redshift sources: probing the intergalactic medium with blazars
• High-redshift blazars through nustar eyes
• BASS XXXIII: Swift-BAT blazars and their jets through cosmic time
• Detection of a gamma-ray flare from the high-redshift blazar DA 193
• Constraints on the location of $\gamma$-ray emitting region for a sample of blazars with radio core-shift measurements
• NuSTAR and XMM-Newton observations of the Arches cluster in 2015: fading hard X-ray emission from the molecular cloud
• Temporal and spectral study of PKS 0208-512 during the 2019-2020 flare
• Multiband Observations of the Quasar PKS 2326-502 during Active and Quiescent Gamma-Ray States in 2010-2012
• Evaluation of the performance of a CdZnTe-based soft $\gamma$-ray detector for CubeSat payloads
• Performance Evaluation of a silicon-based 6U Cubesat detector for soft $\gamma$-ray astronomy