The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
The Structure and Dynamics of the Subparsec Jet in M87 Based on 50 VLBA Observations over 17 Years at 43 GHz
Open accessAbstract
The central radio source in M87 provides the best opportunity to study jet formation because it has a large angular size for the gravitational radius of the black hole and has a bright jet that is well resolved by very long baseline interferometry observations. We present intensive monitoring observations from 2007 and 2008, plus roughly annual observations that span 17 years, all made with the the Very Long Baseline Array at 43 GHz with a resolution of about 30 by 60 R S. Our high dynamic range images clearly show the wide opening angle structure and the counterjet. The jet and counterjet are nearly symmetric in the inner 1.5 mas (0.12 pc in projection), with both being edge brightened. Both show deviations from parabolic shape in the form of an initial rapid expansion and subsequent contraction followed by further rapid expansion and, beyond the visible counterjet, subsequent collimation. Proper motions and counterjet/jet intensity ratios both indicate acceleration from apparent speeds of ≲0.5 c to ≳2 c in the inner ∼2 mas and suggest a helical flow. The jet displays a sideways shift with an approximately 8–10 yr quasi-periodicity. The shift propagates outward nonballistically and significantly more slowly than the flow speed revealed by the fastest-moving components. Polarization data show a systematic structure with magnetic field vectors that suggest a toroidal field close to the core.
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Cites
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Hydromagnetic flows from accretion discs and the production of radio jets
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DiFX-2: A More Flexible, Efficient, Robust, and Powerful Software Correlator
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THE BLACK HOLE MASS IN M87 FROM GEMINI/NIFS ADAPTIVE OPTICS OBSERVATIONS
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Cited by
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
The Event Horizon Telescope Collaboration, Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A.-K., Ball, D., Baloković, M., Barrett, J., et al. (2019) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ab0ec7 · Cited by 4,205
First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
The Event Horizon Telescope Collaboration, Akiyama, K., Alberdi, A., Alef, W., Asada, K., Azulay, R., Baczko, A.-K., Ball, D., Baloković, M., Barrett, J., et al. (2019) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ab0f43 · Cited by 1,424
Polarimetric Properties of Event Horizon Telescope Targets from ALMA
Goddi, C., Martí-Vidal, I., Messias, H., Bower, G. C., Broderick, A. E., Dexter, J., Marrone, D. P., Moscibrodzka, M., Nagai, H., Algaba, J. C., et al. (2021) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/abee6a · Cited by 111
Ressler, S. M., White, C. J., & Quataert, E. (2023) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stad837 · Cited by 56
Broderick, A. E., Gold, R., Georgiev, B., Pesce, D. W., Tiede, P., Ni, C., Moriyama, K., Akiyama, K., Alberdi, A., Alef, W., et al. (2022) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ac6584 · Cited by 38
Metadata
- Authors
- Walker, R. C., Hardee, P. E., Davies, F. B., Ly, C., & Junor, W.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2018-03-10
- Volume
- 855
- Issue
- 2
- Pages
- 128
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2788733485
- Cited by
- 348
- References
- 29
- FWCI
- 18.99
- Type
- journal article
- Language
- en
- Open access
- green
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- Walker, R. C., Hardee, P. E., Davies, F. B., Ly, C., & Junor, W. (2018). The Structure and Dynamics of the Subparsec Jet in M87 Based on 50 VLBA Observations over 17 Years at 43 GHz. The Astrophysical Journal. https://doi.org/10.3847/1538-4357/aaafcc
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