Zobrazeno 1 - 10
of 2 044
pro vyhledávání: '"G B. Taylor"'
Autor:
A. C. S Readhead, V. Ravi, R. D. Blandford, A. G. Sullivan, J. Somalwar, M. C. Begelman, M. Birkinshaw, I. Liodakis, M. L. Lister, T. J. Pearson, G. B. Taylor, P. N. Wilkinson, N. Globus, S. Kiehlmann, C. R. Lawrence, D. Murphy, S. O’Neill, V. Pavlidou, E. Sheldahl, A. Siemiginowska, K. Tassis
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 242 (2024)
We use a sample of 54 compact symmetric objects (CSOs) to confirm that there are two unrelated CSO classes: an edge-dimmed, low-luminosity class (CSO 1), and an edge-brightened, high-luminosity class (CSO 2). Using blind tests, we show that CSO 2s co
Externí odkaz:
https://doaj.org/article/02064a117a3345868f790e61f53e83cf
Autor:
S. Kiehlmann, M. L. Lister, A. C. S Readhead, I. Liodakis, Sandra O’Neill, T. J. Pearson, Evan Sheldahl, Aneta Siemiginowska, K. Tassis, G. B. Taylor, P. N. Wilkinson
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 240 (2024)
Compact symmetric objects (CSOs) are jetted active galactic nuclei (AGN) with overall projected size 700 mJy is between (6.8 ± 1.6)% and (8.5 ± 1.8)%.
Externí odkaz:
https://doaj.org/article/4673032416ce4c5d80e7eec6bd30f210
Autor:
S. Kiehlmann, A. C. S. Readhead, S. O’Neill, P. N. Wilkinson, M. L. Lister, I. Liodakis, S. Bruzewski, V. Pavlidou, T. J. Pearson, E. Sheldahl, A. Siemiginowska, K. Tassis, G. B. Taylor
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 241 (2024)
Compact symmetric objects (CSOs) are compact (99%) of CSO 2s do not evolve into larger-scale radio sources. These CSO 2s belong to a distinct population of jetted AGN, which should be characterized as “short-lived,” as opposed to “young,” com
Externí odkaz:
https://doaj.org/article/9ec3739c56de4661abd0569f7e47dcff
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 163 (2023)
We report the results of careful astrometric measurements of the cannonball pulsar J0002+6216 carried out over 3 yr using the High Sensitivity Array. We significantly refine the proper motion to μ = 35.3 ± 0.6 mas yr ^−1 and place new constraints
Externí odkaz:
https://doaj.org/article/c8e8391e96694c29b26befc05313c88a
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 1, p 51 (2023)
Approximately one-third of existing γ -ray sources identified by the Fermi Gamma-Ray Space Telescope are considered to be unassociated, with no known counterpart at other frequencies/wavelengths. These sources have been the subject of intense scruti
Externí odkaz:
https://doaj.org/article/62d9ff41636e42cda98631ab1d7690d8
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 2, p 129 (2023)
We present X-ray and radio observations of the recently discovered bow-shock pulsar wind nebula (PWN) associated with PSR J0002+6216, characterizing the PWN morphology, which was unresolved in previous studies. The multifrequency, multiepoch Very Lar
Externí odkaz:
https://doaj.org/article/5f8ddbe4a63a4a1d8366dc95ee845b57
Autor:
J. F. Helmboldt, G. B. Taylor
Publikováno v:
Earth and Space Science, Vol 7, Iss 4, Pp n/a-n/a (2020)
Abstract This paper presents the results of an analysis of a unique observing campaign that tracks groups of irregularities associated with sporadic E ( Es) via their coherent backscattering of a very high frequency transmitter of opportunity (an ana
Externí odkaz:
https://doaj.org/article/5968799546aa44d58386d2a0f342154a
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 511:3937-3950
Efforts are underway to use high-precision timing of pulsars in order to detect low-frequency gravitational waves. A limit to this technique is the timing noise generated by dispersion in the plasma along the line of sight to the pulsar, including th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f7bc9dfcde32d7263c92ffad3a1dbc7
https://doi.org/10.1093/mnras/stac316
https://doi.org/10.1093/mnras/stac316
Publikováno v:
Western journal of medicine and surgery [West J Med Surg] 1842 Sep; Vol. 6 (3), pp. 181-185.
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 495:2125-2134
With the Expanded Long Wavelength Array and pulsar binning techniques, we searched for off-pulse emission from PSR B0950 + 08 at 76 MHz. Previous studies suggest that off-pulse emission can be due to pulsar wind nebulae (PWNe) in younger pulsars. Oth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5774f285bbbabcac2a41015808126df8
https://doi.org/10.1093/mnras/staa1305
https://doi.org/10.1093/mnras/staa1305