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arxiv: 2606.27435 · v1 · pith:IGSRQZOSnew · submitted 2026-06-25 · 🌌 astro-ph.HE

Parsec-scale polarimetry and kinematics of a spine-sheath jet in the neutrino-blazar TXS 0506+056

F. Eppel , P. Benke , C. Degli Agosti , J. L. G\'omez , D. C. Homan , M. Kadler , Y. Y. Kovalev , M. L. Lister
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V. A. Makeev A. V. Plavin A. B. Pushkarev E. Ros T. Savolainen
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Pith reviewed 2026-06-29 01:22 UTC · model grok-4.3

classification 🌌 astro-ph.HE
keywords TXS 0506+056spine-sheath jetVLBI polarimetryneutrino associationEVPA variabilityjet kinematicsblazar jet structure
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The pith

VLBI observations reveal a spine-sheath structure in the jet of the neutrino blazar TXS 0506+056.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper analyzes 15 GHz full-polarization VLBI data spanning 2009 to 2025 to study the parsec-scale jet of TXS 0506+056, the blazar linked to a 2017 neutrino detection. Kinematic analysis shows moderate superluminal speeds of 1-2c, two quasi-stationary components, and a new component ejected around the neutrino event. The key finding is that the stacked polarization map matches a stratified jet with an inner spine having EVPA parallel to the jet and a sheath layer with perpendicular EVPA. This configuration aligns with models attributing the neutrino emission to interactions in such a layered jet. Readers would care because it provides direct radio evidence for the jet structure thought to produce high-energy neutrinos in blazars.

Core claim

The stacked polarization map is consistent with a stratified spine-sheath jet structure: an inner spine with EVPA aligned with the jet, surrounded by a sheath layer with perpendicular EVPA. Variability in total intensity and polarization indicates interaction between these layers, and the multi-layered jet is consistent with models explaining the neutrino emission.

What carries the argument

The spine-sheath jet structure identified through the stacked polarization map, where the inner spine shows EVPA aligned with the jet direction and the outer sheath shows perpendicular EVPA, which accounts for the observed polarization patterns and flares.

If this is right

  • The interaction between spine and sheath produces linear polarization flares associated with EVPA rotations in quasi-stationary components.
  • A new jet component was ejected contemporaneously with the 2017 neutrino event.
  • The configuration explains the neutrino emission via the spine-sheath structure.
  • TXS 0506+056 represents an archetypal case where similar polarization signatures may appear in other neutrino-emitting sources.
  • This may offer a solution to the Doppler-crisis phenomenon in TeV-emitting blazars.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • If the spine-sheath model holds, targeted polarization monitoring of other IceCube-associated blazars could identify candidates with similar layered jets.
  • The quasi-stationary components likely mark sites of layer interaction where particle acceleration for neutrinos occurs.
  • Higher-resolution or multi-frequency observations could map the radial extent of the sheath layer to test the stratification depth.

Load-bearing premise

The EVPA orientations and variability are caused by the spine-sheath geometry instead of projection effects, Faraday rotation, or other propagation effects.

What would settle it

If higher-frequency VLBI observations show EVPA patterns that do not match the expected perpendicular sheath or if Faraday rotation measures vary strongly across the jet in a way inconsistent with the layers.

Figures

Figures reproduced from arXiv: 2606.27435 by A. B. Pushkarev, A. V. Plavin, C. Degli Agosti, D. C. Homan, E. Ros, F. Eppel, J. L. G\'omez, M. Kadler, M. L. Lister, P. Benke, T. Savolainen, V. A. Makeev, Y. Y. Kovalev.

Figure 1
Figure 1. Figure 1: Left: Stacked total-intensity map of TXS 0506+056, compiled from all 43 analyzed 15 GHz VLBI images between January 2009 and November 2025. Before stacking, all images were aligned on the core component and restored with the median elliptical beam (1.35 mas × 0.57 mas, PA −5.6 ◦ ), displayed in the bottom left of the image. The contours start at 0.22 mJy/beam, corresponding to five times the noise level of… view at source ↗
Figure 2
Figure 2. Figure 2: Left: Core separation vs. time for all modelfit components found in TXS 0506+056. Components 2 and 3 are stationary while components 1 and 4 move at slightly superluminal speeds of 1−2 c. Component 4 appears ∼ 2 years after the neutrino alert IC170922A (grey dashed line). Its ejection time is consistent with the neutrino event. Right: Component light curves with exponential flare fits as described in Eq. (… view at source ↗
Figure 3
Figure 3. Figure 3: Light curves of linear-polarized intensity of the integrated image (top panel) and individual components (bottom five panels). [PITH_FULL_IMAGE:figures/full_fig_p006_3.png] view at source ↗
Figure 4
Figure 4. Figure 4: Stacked 15 GHz polarization image compiled from all 43 VLBI observations from January 2009 to November 2025 (top [PITH_FULL_IMAGE:figures/full_fig_p007_4.png] view at source ↗
Figure 5
Figure 5. Figure 5: Exemplary slice fit in total intensity (left), Stokes Q and U (center), as well as linear polarized intensity (right), taken from [PITH_FULL_IMAGE:figures/full_fig_p008_5.png] view at source ↗
Figure 6
Figure 6. Figure 6: Top panel: Stacked total intensity contours of TXS 0506+056 with median components from Tab. 1 overplot￾ted and rotated by 95 ◦ (counterclockwise) for better visual￾ization. Bottom panels: Light curves of individual components (bottom five panels) and integrated total intensity light curve. The RATAN 11 GHz fit and flare decomposition is taken from Allakhverdyan et al. (2024). The peak time of the first fl… view at source ↗
Figure 7
Figure 7. Figure 7: Single-dish light curve fits for TXS 0506 [PITH_FULL_IMAGE:figures/full_fig_p010_7.png] view at source ↗
read the original abstract

In 2017, the blazar TXS 0506+056 showed a remarkable gamma-ray outburst simultaneously with a high-energy neutrino detection by IceCube from the same sky region. The significance of this association was found to be on the order of 3 sigma thus providing a strong link between the neutrino emission and the blazar flare. The high-energy flare in TXS 0506+056 was followed by a delayed radio flare, peaking in $\sim2020$ in the aftermath of the neutrino event. We investigate the parsec-scale jet structure and dynamics of TXS 0506+056 using 15 GHz full-polarization VLBI observations obtained between 2009 and 2025 with the Very Long Baseline Array. Our kinematic analysis reveals moderate superluminal jet speeds of $\sim(1-2)$c and two quasi-stationary components. A new jet component with comparable speed was ejected contemporaneously with the 2017 IceCube neutrino event. The stacked polarization map is consistent with a stratified spine-sheath jet structure: an inner spine with EVPA aligned with the jet, surrounded by a sheath layer with perpendicular EVPA. Variability in total intensity and polarization further indicates interaction between these layers, particularly evident in characteristic linear polarization flares, associated with EVPA rotations of the quasi-stationary components. The multi-layered jet configuration is consistent with previous studies that were able to explain the neutrino emission in this TXS 0506+056 through a spine-sheath jet structure. We suggest that TXS 0506+056 represents an archetypal case and that similar polarization signatures and geometric light curve flares may be present in other neutrino-emitting sources, potentially offering a solution to the Doppler-crisis phenomenon observed in TeV-emitting blazars.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 2 minor

Summary. The paper analyzes 15 GHz VLBA full-polarization observations of TXS 0506+056 from 2009–2025. Kinematic modeling identifies moderate superluminal speeds (∼1–2 c), two quasi-stationary components, and a new component ejected near the 2017 neutrino event. The stacked polarization map is presented as evidence for a stratified spine-sheath structure (inner spine with EVPA parallel to the jet axis, outer sheath with perpendicular EVPA). Variability in total intensity and polarization is interpreted as indicating interactions between the layers, consistent with prior spine-sheath models invoked to explain the neutrino emission; the source is proposed as archetypal for similar signatures in other neutrino blazars.

Significance. If the polarization interpretation survives scrutiny of propagation effects, the multi-epoch dataset supplies direct observational constraints on jet stratification in a neutrino-associated blazar, reinforcing the spine-sheath scenario previously used to address the Doppler crisis in TeV sources. The timing coincidence between component ejection and the IceCube event adds a temporal dimension to the structural claim.

major comments (2)
  1. [stacked polarization map and its interpretation] The central claim that the stacked polarization map demonstrates a spine-sheath geometry rests on mapping the observed EVPA orientations directly to the underlying B-field (parallel in spine, toroidal in sheath). At a single frequency of 15 GHz, differential Faraday rotation (RM gradients of 10^3–10^4 rad m^{-2} typical in blazar cores) can rotate the observed EVPA by tens of degrees without any change in the intrinsic field geometry, potentially producing the reported 90° flip. No multi-frequency observations, RM synthesis, or explicit test against plausible RM values are reported to exclude this alternative.
  2. [kinematic analysis] The kinematic analysis reports moderate superluminal speeds and a new component ejected contemporaneously with the 2017 neutrino event, but the paper does not quantify the uncertainty in component identification criteria or proper-motion fitting that would be required to establish the ejection timing as statistically robust rather than coincidental.
minor comments (2)
  1. [variability discussion] The abstract refers to 'characteristic linear polarization flares' associated with EVPA rotations; the main text should define the quantitative criteria used to identify these flares and report their measured amplitudes and timescales.
  2. [polarization results] Notation for EVPA and jet position angle should be stated explicitly once in the methods or results section to avoid ambiguity when comparing spine and sheath regions.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive and detailed report. We address each major comment below and indicate the revisions we will make to the manuscript.

read point-by-point responses

  1. Referee: [stacked polarization map and its interpretation] The central claim that the stacked polarization map demonstrates a spine-sheath geometry rests on mapping the observed EVPA orientations directly to the underlying B-field (parallel in spine, toroidal in sheath). At a single frequency of 15 GHz, differential Faraday rotation (RM gradients of 10^3–10^4 rad m^{-2} typical in blazar cores) can rotate the observed EVPA by tens of degrees without any change in the intrinsic field geometry, potentially producing the reported 90° flip. No multi-frequency observations, RM synthesis, or explicit test against plausible RM values are reported to exclude this alternative.

    Authors: We acknowledge that single-frequency 15 GHz data alone cannot exclude differential Faraday rotation as a contributor to the observed EVPA pattern. The stacked map is formed from multiple epochs spanning 2009–2025 and shows a spatially consistent orientation, which we interpret as favoring an intrinsic spine-sheath geometry over transient propagation effects. Nevertheless, we agree that this alternative cannot be ruled out without additional data. We will revise the manuscript to add an explicit discussion of possible RM effects, cite typical RM values in blazar cores, and state that multi-frequency observations would be required to confirm the magnetic-field interpretation. revision: yes

  2. Referee: [kinematic analysis] The kinematic analysis reports moderate superluminal speeds and a new component ejected contemporaneously with the 2017 neutrino event, but the paper does not quantify the uncertainty in component identification criteria or proper-motion fitting that would be required to establish the ejection timing as statistically robust rather than coincidental.

    Authors: We agree that a quantitative assessment of uncertainties is necessary to support the claimed ejection timing. In the revised version we will expand the kinematic section to describe the component identification criteria in detail, report the formal uncertainties from the model fits, and include a statistical evaluation of the ejection epoch relative to the 2017 neutrino event. revision: yes

Circularity Check

0 steps flagged

No circularity: purely observational VLBI analysis with no derivations or self-referential fits

full rationale

The paper reports direct results from 15 GHz VLBI observations (kinematic component tracking, stacked polarization maps, light-curve variability) without any equations, parameter fitting that is then re-used as a prediction, or mathematical derivations. All claims are empirical comparisons of images and time series to the data themselves and to external prior literature. No self-citation is load-bearing for a central premise, no ansatz is introduced, and no quantity is defined in terms of itself. The analysis is therefore self-contained as an observational report.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 0 invented entities

Observational paper; no free parameters, no invented entities, and only standard domain assumptions from radio interferometry.

axioms (1)
  • domain assumption Standard VLBI calibration, imaging, and polarization analysis techniques are reliable and unbiased for this source
    Invoked implicitly when interpreting EVPA maps and component motions from VLBA data.

pith-pipeline@v0.9.1-grok · 5939 in / 1186 out tokens · 30659 ms · 2026-06-29T01:22:58.801453+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

298 extracted references · 252 canonical work pages · 102 internal anchors

  1. [1]

    Structured jets in BL Lac objects: efficient PeV neutrino factories?

    Structured Jets in BL Lac Objects: Efficient PeV Neutrino Factories?. , keywords =. doi:10.1088/2041-8205/793/1/L18 , archivePrefix =. 1407.0907 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/2041-8205/793/1/l18 2041

  2. [2]

    , keywords =

    Probing the Galactic Neutrino Flux at Neutrino Energies above 200 TeV with the Baikal Gigaton Volume Detector. , keywords =. doi:10.3847/1538-4357/adb630 , archivePrefix =. 2411.05608 , primaryClass =

    work page doi:10.3847/1538-4357/adb630

  3. [3]

    , keywords =

    Galactic Contribution to the High-energy Neutrino Flux Found in Track-like IceCube Events. , keywords =. doi:10.3847/2041-8213/aca1ae , archivePrefix =. 2208.08423 , primaryClass =

    work page doi:10.3847/2041-8213/aca1ae 2041

  4. [4]

    On-sky scattering and dynamics

    Studies of stationary features in jets: 3C 279 quasar: I. On-sky scattering and dynamics. , keywords =. doi:10.1051/0004-6361/202555927 , archivePrefix =. 2506.12457 , primaryClass =

    work page doi:10.1051/0004-6361/202555927

  5. [5]

    Trajectory reversals and superluminal speeds on sub-parsec scales

    Studies of stationary features in jets: BL Lacertae: II. Trajectory reversals and superluminal speeds on sub-parsec scales. , keywords =. doi:10.1051/0004-6361/202451406 , archivePrefix =. 2404.18330 , primaryClass =

    work page doi:10.1051/0004-6361/202451406

  6. [6]

    Studies of stationary features in jets: BL Lacertae. I. The dynamics and brightness asymmetry on sub-parsec scales. , keywords =. doi:10.1051/0004-6361/202037968 , archivePrefix =. 2003.08181 , primaryClass =

    work page doi:10.1051/0004-6361/202037968 2003

  7. [7]

    , keywords =

    Looking into the jet cone of the neutrino-associated very high-energy blazar PKS 1424+240. , keywords =. doi:10.1051/0004-6361/202555400 , archivePrefix =. 2504.09287 , primaryClass =

    work page doi:10.1051/0004-6361/202555400

  8. [8]

    Living Reviews in Relativity , keywords =

    Fundamental physics opportunities with the next-generation Event Horizon Telescope. Living Reviews in Relativity , keywords =. doi:10.1007/s41114-025-00057-0 , archivePrefix =. 2312.02130 , primaryClass =

    work page doi:10.1007/s41114-025-00057-0

  9. [9]

    Proceedings of the 16th EVN Symposium , year = 2024, editor =

    The Global Millimetre VLBI Array: Current Capabilities and Future Enhancements. Proceedings of the 16th EVN Symposium , year = 2024, editor =

    2024

  10. [10]

    The Jets of TeV Blazars at Higher Resolution: 43 GHz and Polarimetric VLBA Observations from 2005-2009

    The Jets of TeV Blazars at Higher Resolution: 43 GHz and Polarimetric VLBA Observations from 2005 to 2009. , keywords =. doi:10.1088/0004-637X/723/2/1150 , archivePrefix =. 1009.2269 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/723/2/1150 2005

  11. [11]

    , keywords =

    Dual-high-frequency VLBI study of blazar-jet brightness-temperature gradients and collimation profiles. , keywords =. doi:10.1051/0004-6361/202142363 , archivePrefix =. 2112.04403 , primaryClass =

    work page doi:10.1051/0004-6361/202142363

  12. [12]

    Rapid jet ejection from PKS 0215+015 coincident with a high-energy neutrino event

    Rapid jet ejection from PKS 0215+015 coincident with a high-energy neutrino event. , keywords =. doi:10.1051/0004-6361/202558593 , archivePrefix =. 2603.02325 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202558593

  13. [13]

    , keywords =

    The dynamics of the parsec-scale jet in the neutrino blazar PKS 0735+178. , keywords =. doi:10.1051/0004-6361/202452111 , archivePrefix =. 2505.13876 , primaryClass =

    work page doi:10.1051/0004-6361/202452111

  14. [14]

    , year = 1984, month = jan, volume =

    The Origin of Ultra-High-Energy Cosmic Rays. , year = 1984, month = jan, volume =. doi:10.1146/annurev.aa.22.090184.002233 , adsurl =

    work page doi:10.1146/annurev.aa.22.090184.002233 1984

  15. [15]

    Jet opening angles and gamma-ray brightness of AGN

    Jet opening angles and gamma-ray brightness of AGN. , keywords =. doi:10.1051/0004-6361/200913422 , archivePrefix =. 0910.1813 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/200913422

  16. [16]

    AIP Conference Proceedings , volume=

    Nested Sampling , author=. AIP Conference Proceedings , volume=. 2004 , doi=

    2004

  17. [17]

    Speagle, J. S. , journal=. 2020 , doi=

    2020

  18. [18]

    Monitoring Of Jets in Active Galactic Nuclei with VLBA Experiments. XVIII. Kinematics and Inner Jet Evolution of Bright Radio-loud Active Galaxies. , keywords =. doi:10.3847/1538-4357/ac230f , archivePrefix =. 2108.13358 , primaryClass =

    work page doi:10.3847/1538-4357/ac230f

  19. [19]

    , keywords =

    A transition from parabolic to conical shape as a common effect in nearby AGN jets. , keywords =. doi:10.1093/mnras/staa1121 , archivePrefix =. 1907.01485 , primaryClass =

    work page doi:10.1093/mnras/staa1121 1907

  20. [20]

    , keywords =

    Linear Polarization Imaging with Very Long Baseline Interferometry at High Frequencies. , keywords =. doi:10.1086/117706 , adsurl =

    work page doi:10.1086/117706

  21. [21]

    Ultra-relativistic wave propagation in the neutrino-associated blazar TXS 0506+056. in prep. , keywords =

  22. [22]

    , keywords =

    High-energy neutrino-induced cascade from the direction of the flaring radio blazar TXS 0506 + 056 observed by Baikal-GVD in 2021. , keywords =. doi:10.1093/mnras/stad3653 , archivePrefix =. 2210.01650 , primaryClass =

    work page doi:10.1093/mnras/stad3653 2021

  23. [23]

    G., Marscher A

    Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz within the VLBA-BU-BLAZAR Program. , keywords =. doi:10.3847/1538-4357/aa8407 , archivePrefix =. 1711.03983 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/aa8407

  24. [24]

    Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array

    Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array. , keywords =. doi:10.1086/444593 , archivePrefix =. astro-ph/0502501 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/444593

  25. [25]

    , keywords =

    The Parsec-scale Jet of the Neutrino-emitting Blazar TXS 0506+056. , keywords =. doi:10.3847/1538-4357/ab8f9f , archivePrefix =. 2005.00300 , primaryClass =

    work page doi:10.3847/1538-4357/ab8f9f 2005

  26. [26]

    Sub-Milliarcsecond Imaging of Quasars and Active Galactic Nuclei. IV. Fine-Scale Structure. , keywords =. doi:10.1086/497430 , archivePrefix =. astro-ph/0505536 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/497430

  27. [27]

    Relativistic Outflow Drives Gamma-Ray Emission in 3C345

    Relativistic outflow drives -ray emission in 3C 345. , keywords =. doi:10.1051/0004-6361/201117705 , archivePrefix =. 1111.2045 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201117705 2045

  28. [28]

    , keywords =

    The nuclear jet and core of TXS 0506+056 could be gravitationally lensed. , keywords =. doi:10.1051/0004-6361/202452530 , adsurl =

    work page doi:10.1051/0004-6361/202452530

  29. [29]

    MOJAVE: Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. I. First-Epoch 15 GHz Linear Polarization Images. , keywords =. doi:10.1086/432969 , archivePrefix =. astro-ph/0503152 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/432969

  30. [30]

    and Roberts, David H

    Attridge, Joanne M. and Roberts, David H. and Wardle, John F. C. , title =. The Astrophysical Journal , abstract =. 1999 , month =. doi:10.1086/312078 , url =

    work page doi:10.1086/312078 1999

  31. [31]

    Blazars in the Fermi Era: The OVRO 40-m Telescope Monitoring Program

    Blazars in the Fermi Era: The OVRO 40 m Telescope Monitoring Program. , keywords =. doi:10.1088/0067-0049/194/2/29 , archivePrefix =. 1011.3111 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0067-0049/194/2/29

  32. [32]

    Opacity, variability and kinematics of AGN jets

    Opacity, variability, and kinematics of AGN jets. , keywords =. doi:10.1093/mnras/stz885 , archivePrefix =. 1809.05536 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stz885

  33. [33]

    2004, MNRAS, 349, 476, doi:10.1111/j.1365-2966.2004.07508.x Light Cone Strong Lensing 17

    Spine-sheath polarization structures in four active galactic nuclei jets. , keywords =. doi:10.1111/j.1365-2966.2004.08535.x , adsurl =

    work page doi:10.1111/j.1365-2966.2004.08535.x 2004

  34. [34]

    MOJAVE: Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. V. Multi-Epoch VLBA Images. , keywords =. doi:10.1088/0004-6256/137/3/3718 , archivePrefix =. 0812.3947 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-6256/137/3/3718

  35. [35]

    MOJAVE: Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. VIII. Faraday Rotation in Parsec-scale AGN Jets. , keywords =. doi:10.1088/0004-6256/144/4/105 , archivePrefix =. 1205.6746 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-6256/144/4/105

  36. [36]

    , keywords =

    Symmetry breaking in repeating fast radio bursts. , keywords =. doi:10.1093/mnras/stac3078 , archivePrefix =. 2209.01700 , primaryClass =

    work page doi:10.1093/mnras/stac3078

  37. [37]

    The Northern High Time Resolution Universe Pulsar Survey I: Setup and initial discoveries

    The Northern High Time Resolution Universe pulsar survey - I. Setup and initial discoveries. , keywords =. doi:10.1093/mnras/stt1440 , archivePrefix =. 1308.0378 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stt1440

  38. [38]

    , keywords =

    FETCH: A deep-learning based classifier for fast transient classification. , keywords =. doi:10.1093/mnras/staa1856 , archivePrefix =. 1902.06343 , primaryClass =

    work page doi:10.1093/mnras/staa1856 1902

  39. [39]

    doi:10.5281/zenodo.3905437 , url =

    Devansh Agarwal and Kshitij Aggarwal , title =. doi:10.5281/zenodo.3905437 , url =

    work page doi:10.5281/zenodo.3905437

  40. [40]

    PRESTO: PulsaR Exploration and Search TOolkit

  41. [41]

    2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS) , year = 2023, month = aug, eid =

    The Effelsberg Direct Digitisation System. 2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS) , year = 2023, month = aug, eid =

    2023

  42. [42]

    , keywords =

    Identifying the Origin of Fast Radio Burst Associated X-Ray Bursts with X-Ray Polarization. , keywords =. doi:10.3847/1538-4357/ad83ba , archivePrefix =. 2410.03167 , primaryClass =

    work page doi:10.3847/1538-4357/ad83ba

  43. [43]

    Astronomical Data Analysis Software and Systems (ADASS) XIII , year = 2004, editor =

    The XMM-Newton SAS - Distributed Development and Maintenance of a Large Science Analysis System: A Critical Analysis. Astronomical Data Analysis Software and Systems (ADASS) XIII , year = 2004, editor =

    2004

  44. [44]

    Description and access to the data

    The eROSITA upper limits. Description and access to the data. , keywords =. doi:10.1051/0004-6361/202346773 , archivePrefix =. 2401.17305 , primaryClass =

    work page doi:10.1051/0004-6361/202346773

  45. [45]

    The Astronomer's Telegram , keywords =

    First Swift Observations of the Repeating FRB20240114A. The Astronomer's Telegram , keywords =

  46. [46]

    Planck 2018 results. VI. Cosmological parameters. , keywords =. doi:10.1051/0004-6361/201833910 , archivePrefix =. 1807.06209 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201833910 2018

  47. [47]

    Nature Astronomy , keywords =

    A link between repeating and non-repeating fast radio bursts through their energy distributions. Nature Astronomy , keywords =. doi:10.1038/s41550-023-02153-z , archivePrefix =. 2306.15505 , primaryClass =

    work page doi:10.1038/s41550-023-02153-z

  48. [48]

    , keywords =

    One-off and Repeating Fast Radio Bursts: A Statistical Analysis. , keywords =. doi:10.3847/1538-4357/ac958a , archivePrefix =. 2209.13943 , primaryClass =

    work page doi:10.3847/1538-4357/ac958a

  49. [49]

    , keywords =

    A bright millisecond-duration radio burst from a Galactic magnetar. , keywords =. doi:10.1038/s41586-020-2863-y , archivePrefix =. 2005.10324 , primaryClass =

    work page doi:10.1038/s41586-020-2863-y 2005

  50. [50]

    Hyperflares of SGRs as an engine for millisecond extragalactic radio bursts

    Hyperflares of SGRs as an engine for millisecond extragalactic radio bursts. Evolution of Cosmic Objects through their Physical Activity , year = 2010, editor =. doi:10.48550/arXiv.0710.2006 , archivePrefix =. 0710.2006 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.0710.2006 2010

  51. [51]

    , keywords =

    A unified picture of Galactic and cosmological fast radio bursts. , keywords =. doi:10.1093/mnras/staa2450 , archivePrefix =. 2005.06736 , primaryClass =

    work page doi:10.1093/mnras/staa2450 2005

  52. [52]

    , keywords =

    Implications of a Fast Radio Burst from a Galactic Magnetar. , keywords =. doi:10.3847/2041-8213/abac57 , archivePrefix =. 2005.05283 , primaryClass =

    work page doi:10.3847/2041-8213/abac57 2041

  53. [53]

    Total Flux Density Variations in Extragalactic Radio Sources. III. Doppler Boosting Factors, Lorentz Factors, and Viewing Angles for Active Galactic Nuclei. , keywords =. doi:10.1086/307587 , adsurl =

    work page doi:10.1086/307587

  54. [54]

    Resolution limits in astronomical images

    arXiv e-prints , keywords =. doi:10.48550/arXiv.astro-ph/0503225 , archivePrefix =. astro-ph/0503225 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.astro-ph/0503225

  55. [55]

    , keywords =

    The relativistic parsec-scale jets of the blazars TXS 0506+056 and PKS 0502+049 and their possible association with gamma-ray flares and neutrino production. , keywords =. doi:10.1093/mnras/stab3022 , archivePrefix =. 2112.08858 , primaryClass =

    work page doi:10.1093/mnras/stab3022

  56. [56]

    Intrinsic Brightness Temperatures of AGN Jets

    Intrinsic Brightness Temperatures of AGN Jets. , keywords =. doi:10.1086/504715 , archivePrefix =. astro-ph/0603837 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/504715

  57. [57]

    Wavelet-based decomposition and analysis of structural patterns in astronomical images

    Wavelet-based decomposition and analysis of structural patterns in astronomical images. , keywords =. doi:10.1051/0004-6361/201424566 , archivePrefix =. 1410.3732 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201424566

  58. [58]

    Science with an ngVLA: The ngVLA Science Case and Associated Science Requirements

    The ngVLA Science Case and Associated Science Requirements. Science with a Next Generation Very Large Array , year = 2018, editor =. doi:10.48550/arXiv.1810.07524 , archivePrefix =. 1810.07524 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.1810.07524 2018

  59. [59]

    Advancing Astrophysics with the Square Kilometre Array (AASKA14) , year = 2015, month = apr, eid =

    Advancing Astrophysics with the Square Kilometre Array. Advancing Astrophysics with the Square Kilometre Array (AASKA14) , year = 2015, month = apr, eid =. doi:10.22323/1.215.0174 , adsurl =

    work page doi:10.22323/1.215.0174 2015

  60. [60]

    , keywords =

    Extreme Jet Beaming Observed in Neutrino-associated Blazars. , keywords =. doi:10.3847/1538-4357/adf54f , archivePrefix =. 2503.08667 , primaryClass =

    work page doi:10.3847/1538-4357/adf54f

  61. [61]

    , keywords =

    A distance measurement for blazar TXS 0506+056 using its radio variability and very long baseline interferometry images. , keywords =. doi:10.1051/0004-6361/202554088 , archivePrefix =. 2512.04327 , primaryClass =

    work page doi:10.1051/0004-6361/202554088

  62. [62]

    Decomposing blazar spectra into lepto-hadronic emission components

    Decomposing blazar spectra into lepto-hadronic emission components. Astronomische Nachrichten , keywords =. doi:10.1002/asna.201813500 , archivePrefix =. 1808.05540 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1002/asna.201813500

  63. [63]

    Are Spine--Sheath Polarization Structures in the Jets of Active Galactic Nuclei Associated with Helical Magnetic Fields?

    Are spine-sheath polarization structures in the jets of active galactic nuclei associated with helical magnetic fields?. , keywords =. doi:10.1093/mnras/stu1381 , archivePrefix =. 1410.6653 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stu1381

  64. [64]

    , keywords =

    Ray-tracing in relativistic jet simulations: A polarimetric study of magnetic field morphology and electron scaling relations. , keywords =. doi:10.1051/0004-6361/202141454 , archivePrefix =. 2109.03514 , primaryClass =

    work page doi:10.1051/0004-6361/202141454

  65. [65]

    High-energy cosmic neutrinos from spine-sheath BL Lac jets

    High-energy cosmic neutrinos from spine-sheath BL Lac jets. , keywords =. doi:10.1093/mnras/stv1023 , archivePrefix =. 1411.2783 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stv1023

  66. [66]

    MOJAVE. XVII. Jet Kinematics and Parent Population Properties of Relativistically Beamed Radio-loud Blazars. , keywords =. doi:10.3847/1538-4357/ab08ee , archivePrefix =. 1902.09591 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/ab08ee 1902

  67. [67]

    Science , keywords =

    Multimessenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A. Science , keywords =. doi:10.1126/science.aat1378 , archivePrefix =. 1807.08816 , primaryClass =

    work page doi:10.1126/science.aat1378

  68. [68]

    TELAMON: Effelsberg monitoring of AGN jets with very-high-energy astroparticle emission. I. Program description and sample characterization. , keywords =. doi:10.1051/0004-6361/202348262 , archivePrefix =. 2401.06296 , primaryClass =

    work page doi:10.1051/0004-6361/202348262

  69. [69]

    , keywords =

    Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz during 10 yr of the VLBA-BU-BLAZAR Program. , keywords =. doi:10.3847/1538-4365/ac589c , archivePrefix =. 2202.12290 , primaryClass =

    work page doi:10.3847/1538-4365/ac589c

  70. [70]

    MOJAVE. XV. VLBA 15 GHz Total Intensity and Polarization Maps of 437 Parsec-scale AGN Jets from 1996 to 2017. , keywords =. doi:10.3847/1538-4365/aa9c44 , archivePrefix =. 1711.07802 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4365/aa9c44 1996

  71. [71]

    Astronomical Data Analysis Software and Systems XV , year = 2006, editor =

    ParselTongue: AIPS Talking Python. Astronomical Data Analysis Software and Systems XV , year = 2006, editor =

    2006

  72. [72]

    Acquisition, Processing and Archiving of Astronomical Images , year = 1990, editor =

    The Astronomical Image Processing System. Acquisition, Processing and Archiving of Astronomical Images , year = 1990, editor =

    1990

  73. [73]

    2022 , month =

    CASA, the Common Astronomy Software Applications for Radio Astronomy. , keywords =. doi:10.1088/1538-3873/ac9642 , archivePrefix =. 2210.02276 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/1538-3873/ac9642

  74. [74]

    , keywords =

    Polarization calibration techniques for the new-generation VLBI. , keywords =. doi:10.1051/0004-6361/202039527 , archivePrefix =. 2012.05581 , primaryClass =

    work page doi:10.1051/0004-6361/202039527 2012

  75. [75]

    , keywords =

    Residual Entropy as a Diagnostic and Stopping Metric for CLEAN. , keywords =. doi:10.3847/1538-3881/ad0beb , archivePrefix =. 2311.05427 , primaryClass =

    work page doi:10.3847/1538-3881/ad0beb

  76. [76]

    Astronomical Data Analysis Software and Systems VI , year = 1997, editor =

    Difmap: an Interactive Program for Synthesis Imaging. Astronomical Data Analysis Software and Systems VI , year = 1997, editor =

    1997

  77. [77]

    Calibration and imaging of 7 mm VLBA observations of the AGN jet in M 87

    rPICARD: A CASA-based calibration pipeline for VLBI data. Calibration and imaging of 7 mm VLBA observations of the AGN jet in M 87. , keywords =. doi:10.1051/0004-6361/201935181 , archivePrefix =. 1905.01905 , primaryClass =

    work page doi:10.1051/0004-6361/201935181 1905

  78. [78]

    Legacy , year = 1993, month = may, volume =

    PIMMS and Viewing: proposal preparation tools. Legacy , year = 1993, month = may, volume =

    1993

  79. [79]

    HI4PI: A full-sky HI survey based on EBHIS and GASS

    HI4PI: A full-sky H I survey based on EBHIS and GASS. , keywords =. doi:10.1051/0004-6361/201629178 , archivePrefix =. 1610.06175 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201629178

  80. [80]

    pwkit: Astronomical utilities in Python

Showing first 80 references.