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zadetkov: 82
1.
  • Parabolic jet shape on pars... Parabolic jet shape on parsec scales in high redshift AGN
    Nokhrina, E E; Pashchenko, I N; Kutkin, A M Monthly notices of the Royal Astronomical Society, 01/2022, Letnik: 509, Številka: 2
    Journal Article
    Recenzirano

    ABSTRACT Geometry of relativistic jets in active galaxies provides important information about mechanisms of launching, collimation, and acceleration of plasma flow. We propose a new method to probe ...
Celotno besedilo
Dostopno za: NUK, UL, UM, UPUK

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2.
  • A search for radio emission... A search for radio emission from double-neutron star merger GW190425 using Apertif
    Boersma, O. M.; van Leeuwen, J.; Adams, E. A. K. ... Astronomy & astrophysics, 06/2021, Letnik: 650
    Journal Article
    Recenzirano
    Odprti dostop

    Context. Detection of the electromagnetic emission from coalescing binary neutron stars (BNS) is important for understanding the merger and afterglow. Aims. We present a search for a radio ...
Celotno besedilo
Dostopno za: FMFMET, NUK, UL, UM, UPUK

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3.
  • The core shift effect in th... The core shift effect in the blazar 3C 454.3
    Kutkin, A. M.; Sokolovsky, K. V.; Lisakov, M. M. ... Monthly notices of the Royal Astronomical Society, 02/2014, Letnik: 437, Številka: 4
    Journal Article
    Recenzirano
    Odprti dostop

    Opacity-driven shifts of the apparent very long baseline interferometry (VLBI) core position with frequency (the 'core shift' effect) probe physical conditions in the innermost parts of jets in ...
Celotno besedilo
Dostopno za: NUK, UL, UM, UPUK

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4.
  • A bias in VLBI measurements... A bias in VLBI measurements of the core shift effect in AGN jets
    Pashchenko, I N; Plavin, A V; Kutkin, A M ... Monthly notices of the Royal Astronomical Society, 12/2020, Letnik: 499, Številka: 3
    Journal Article
    Recenzirano

    ABSTRACT The Blandford and Königl model of active galactic nuclei (AGN) jets predicts that the position of the apparent opaque jet base – the core – changes with frequency. This effect is observed ...
Celotno besedilo
Dostopno za: NUK, UL, UM, UPUK

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5.
  • Apertif view of the OH mega... Apertif view of the OH megamaser IRAS 10597+5926: OH 18 cm satellite lines in wide-area H I surveys
    Hess, K. M.; Roberts, H.; Dénes, H. ... Astronomy and astrophysics (Berlin), 03/2021, Letnik: 647
    Journal Article
    Recenzirano
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    We present the serendipitous detection of the two main OH maser lines at 1667 and 1665 MHz associated with IRAS 10597+5926 at z ⊙  = 0.19612 in the untargeted Apertif Wide-area Extragalactic imaging ...
Celotno besedilo
Dostopno za: FMFMET, NUK, UL, UM, UPUK

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6.
  • The best of both worlds: Co... The best of both worlds: Combining LOFAR and Apertif to derive resolved radio spectral index images
    Morganti, R.; Oosterloo, T. A.; Brienza, M. ... Astronomy and astrophysics (Berlin), 04/2021, Letnik: 648
    Journal Article
    Recenzirano
    Odprti dostop

    Super massive black holes at the centres of galaxies can cycle through periods of activity and quiescence. Characterising the duty cycle of active galactic nuclei (AGN) is crucial for understanding ...
Celotno besedilo
Dostopno za: FMFMET, NUK, UL, UM, UPUK

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7.
  • The high brightness tempera... The high brightness temperature of B0529+483 revealed by RadioAstron and implications for interstellar scattering
    Pilipenko, S V; Kovalev, Y Y; Andrianov, A S ... Monthly Notices of the Royal Astronomical Society, 03/2018, Letnik: 474, Številka: 3
    Journal Article
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    Abstract The high brightness temperatures, Tb ≳ 1013 K, detected in several active galactic nuclei by RadioAstron space VLBI observations challenge theoretical limits. Refractive scattering by the ...
Celotno besedilo
Dostopno za: NUK, UL, UM, UPUK

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8.
  • The extreme blazar AO 0235+... The extreme blazar AO 0235+164 as seen by extensive ground and space radio observations
    Kutkin, A M; Pashchenko, I N; Lisakov, M M ... Monthly Notices of the Royal Astronomical Society, 04/2018, Letnik: 475, Številka: 4
    Journal Article
    Recenzirano
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    Abstract Clues to the physical conditions in radio cores of blazars come from measurements of brightness temperatures as well as effects produced by intrinsic opacity. We study the properties of the ...
Celotno besedilo
Dostopno za: NUK, UL, UM, UPUK

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9.
  • Opacity, variability, and k... Opacity, variability, and kinematics of AGN jets
    Kutkin, A M; Pashchenko, I N; Sokolovsky, K V ... Monthly Notices of the Royal Astronomical Society, 06/2019, Letnik: 486, Številka: 1
    Journal Article
    Recenzirano
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    ABSTRACT Synchrotron self-absorption in active galactic nuclei (AGN) jets manifests itself as a time delay between flares observed at high and low radio frequencies. It is also responsible for the ...
Celotno besedilo
Dostopno za: NUK, UL, UM, UPUK

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10.
  • Seeing the forest and the t... Seeing the forest and the trees: A radio investigation of the ULIRG Mrk 273
    Kukreti, P.; Morganti, R.; Bondi, M. ... Astronomy & astrophysics, 08/2022, Letnik: 664
    Journal Article
    Recenzirano
    Odprti dostop

    Galaxy mergers have been observed to trigger nuclear activity by feeding gas to the central supermassive black hole. One such class of objects are Ultra Luminous InfraRed Galaxies (ULIRGs), which are ...
Celotno besedilo
Dostopno za: FMFMET, NUK, UL, UM, UPUK
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zadetkov: 82

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