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Local alignments of parsec-scale AGN radiojets. / Mandarakas, N.; Blinov, D.; Casadio, C.; Pelgrims, V.; Kiehlmann, S.; Pavlidou, V.; Tassis, K.

в: Astronomy and Astrophysics, Том 653, A123, 21.09.2021.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Mandarakas, N, Blinov, D, Casadio, C, Pelgrims, V, Kiehlmann, S, Pavlidou, V & Tassis, K 2021, 'Local alignments of parsec-scale AGN radiojets', Astronomy and Astrophysics, Том. 653, A123. https://doi.org/10.1051/0004-6361/202140764

APA

Mandarakas, N., Blinov, D., Casadio, C., Pelgrims, V., Kiehlmann, S., Pavlidou, V., & Tassis, K. (2021). Local alignments of parsec-scale AGN radiojets. Astronomy and Astrophysics, 653, [A123]. https://doi.org/10.1051/0004-6361/202140764

Vancouver

Mandarakas N, Blinov D, Casadio C, Pelgrims V, Kiehlmann S, Pavlidou V и пр. Local alignments of parsec-scale AGN radiojets. Astronomy and Astrophysics. 2021 Сент. 21;653. A123. https://doi.org/10.1051/0004-6361/202140764

Author

Mandarakas, N. ; Blinov, D. ; Casadio, C. ; Pelgrims, V. ; Kiehlmann, S. ; Pavlidou, V. ; Tassis, K. / Local alignments of parsec-scale AGN radiojets. в: Astronomy and Astrophysics. 2021 ; Том 653.

BibTeX

@article{d0e72b6680c64a30a6dc8f1bde6610f6,
title = "Local alignments of parsec-scale AGN radiojets",
abstract = "Context. Coherence in the characteristics of neighboring sources in the 2D and 3D space may suggest the existence of large-scale cosmic structures that are useful for cosmological studies. Numerous works have been conducted to detect such features in global scales as well as in confined areas of the sky. However, their results are often contradictory and their interpretation remains controversial. Aims. We investigate the potential alignment of parsec-scale radio jets in localized regions of the coordinate-redshift space. Methods. We used data from the Astrogeo VLBI FITS image database to deduce jet directions of radio sources. We performed the search for statistical alignments between nearby sources and explore the impact of instrumental biases. Results. We unveil four regions for which the alignment between jet directions deviates from randomness at a significance level of more than 5σ. We find that this effect is unlikely to be due to instrumental systematics. Intriguingly, their locations coincide with other known large-scale cosmic structures or regions of alignment. Conclusions. If the alignments found here are the result of physical processes, the discovered regions may designate some of the largest structures known to date. ",
keywords = "Galaxies: active, Large-scale structure of Universe, Techniques: interferometric, EXISTENCE, galaxies, interferometric, techniques, large-scale structure of Universe, active, GALAXIES, COHERENT ORIENTATIONS, POLARIZATION",
author = "N. Mandarakas and D. Blinov and C. Casadio and V. Pelgrims and S. Kiehlmann and V. Pavlidou and K. Tassis",
note = "Publisher Copyright: {\textcopyright} ESO 2021.",
year = "2021",
month = sep,
day = "21",
doi = "10.1051/0004-6361/202140764",
language = "English",
volume = "653",
journal = "ASTRONOMY & ASTROPHYSICS",
issn = "0004-6361",
publisher = "EDP Sciences",

}

RIS

TY - JOUR

T1 - Local alignments of parsec-scale AGN radiojets

AU - Mandarakas, N.

AU - Blinov, D.

AU - Casadio, C.

AU - Pelgrims, V.

AU - Kiehlmann, S.

AU - Pavlidou, V.

AU - Tassis, K.

N1 - Publisher Copyright: © ESO 2021.

PY - 2021/9/21

Y1 - 2021/9/21

N2 - Context. Coherence in the characteristics of neighboring sources in the 2D and 3D space may suggest the existence of large-scale cosmic structures that are useful for cosmological studies. Numerous works have been conducted to detect such features in global scales as well as in confined areas of the sky. However, their results are often contradictory and their interpretation remains controversial. Aims. We investigate the potential alignment of parsec-scale radio jets in localized regions of the coordinate-redshift space. Methods. We used data from the Astrogeo VLBI FITS image database to deduce jet directions of radio sources. We performed the search for statistical alignments between nearby sources and explore the impact of instrumental biases. Results. We unveil four regions for which the alignment between jet directions deviates from randomness at a significance level of more than 5σ. We find that this effect is unlikely to be due to instrumental systematics. Intriguingly, their locations coincide with other known large-scale cosmic structures or regions of alignment. Conclusions. If the alignments found here are the result of physical processes, the discovered regions may designate some of the largest structures known to date.

AB - Context. Coherence in the characteristics of neighboring sources in the 2D and 3D space may suggest the existence of large-scale cosmic structures that are useful for cosmological studies. Numerous works have been conducted to detect such features in global scales as well as in confined areas of the sky. However, their results are often contradictory and their interpretation remains controversial. Aims. We investigate the potential alignment of parsec-scale radio jets in localized regions of the coordinate-redshift space. Methods. We used data from the Astrogeo VLBI FITS image database to deduce jet directions of radio sources. We performed the search for statistical alignments between nearby sources and explore the impact of instrumental biases. Results. We unveil four regions for which the alignment between jet directions deviates from randomness at a significance level of more than 5σ. We find that this effect is unlikely to be due to instrumental systematics. Intriguingly, their locations coincide with other known large-scale cosmic structures or regions of alignment. Conclusions. If the alignments found here are the result of physical processes, the discovered regions may designate some of the largest structures known to date.

KW - Galaxies: active

KW - Large-scale structure of Universe

KW - Techniques: interferometric

KW - EXISTENCE

KW - galaxies

KW - interferometric

KW - techniques

KW - large-scale structure of Universe

KW - active

KW - GALAXIES

KW - COHERENT ORIENTATIONS

KW - POLARIZATION

UR - http://www.scopus.com/inward/record.url?scp=85115761648&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/202140764

DO - 10.1051/0004-6361/202140764

M3 - Article

AN - SCOPUS:85115761648

VL - 653

JO - ASTRONOMY & ASTROPHYSICS

JF - ASTRONOMY & ASTROPHYSICS

SN - 0004-6361

M1 - A123

ER -

ID: 87677297