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A search for radio emission from double-neutron star merger GW190425 using Apertif
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- Boersma, O. M. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Universiteit Van Amsterdam,University of Amsterdam
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- van Leeuwen, J. (author)
- Universiteit Van Amsterdam,University of Amsterdam,Netherlands Institute for Radio Astronomy (ASTRON)
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- Adams, E. A.K. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen
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- Adebahr, B. (author)
- Ruhr-Universität Bochum
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- Kutkin, A. M. (author)
- Russian Academy of Sciences,Netherlands Institute for Radio Astronomy (ASTRON)
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- Oosterloo, T. (author)
- Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)
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- de Blok, W.J.G. (author)
- University of Cape Town,Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen
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- Van Den Brink, R. H. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Coolen, A. H.W.M. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Connor, L. (author)
- California Institute of Technology (Caltech),Universiteit Van Amsterdam,University of Amsterdam
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- Damstra, Sieds (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Dénes, H. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Hess, K. M. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen
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- van der Hulst, J. M. (author)
- Rijksuniversiteit Groningen,University of Groningen
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- Hut, B. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Ivashina, Marianna, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Loose, G. M. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Lucero, D. M. (author)
- Virginia Polytechnic Institute and State University (Virginia Tech)
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- Maan, Y. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Mika, (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Moss, V. A. (author)
- Netherlands Institute for Radio Astronomy (ASTRON),The University of Sydney,Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Mulder, H. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Oostrum, L. C. (author)
- Universiteit Van Amsterdam,University of Amsterdam,Netherlands Institute for Radio Astronomy (ASTRON)
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- Ruiter, Mark (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Van Der Schuur, D. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Smits, R. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Vermaas, N. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Vohl, D. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
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- Ziemke, J. (author)
- Rijksuniversiteit Groningen,University of Groningen,Netherlands Institute for Radio Astronomy (ASTRON)
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(creator_code:org_t)
- 2021-06-18
- 2021
- English.
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In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 650
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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 counterpart to the gravitational-wave (GW) source GW190425, a BNS merger, using Apertif on the Westerbork Synthesis Radio Telescope (WSRT). Methods We observed a field of high probability in the associated localisation region for three epochs at ΔTâ€., =â€., 68, 90, 109 d post merger. We identified all sources that exhibit flux variations consistent with the expected afterglow emission of GW190425. We also looked for possible transients. These are sources that are only present in one epoch. In addition, we quantified our ability to search for radio afterglows in the fourth and future observing runs of the GW detector network using Monte Carlo simulations. Results We found 25 afterglow candidates based on their variability. None of these could be associated with a possible host galaxy at the luminosity distance of GW190425. We also found 55 transient afterglow candidates that were only detected in one epoch. All of these candidates turned out to be image artefacts. In the fourth observing run, we predict that up to three afterglows will be detectable by Apertif. Conclusions While we did not find a source related to the afterglow emission of GW190425, the search validates our methods for future searches of radio afterglows.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Stars: neutron
- Gravitational waves
- Radio continuum: stars
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Boersma, O. M.
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van Leeuwen, J.
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Adams, E. A.K.
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Adebahr, B.
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Kutkin, A. M.
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Oosterloo, T.
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show more...
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de Blok, W.J.G.
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Van Den Brink, R ...
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Coolen, A. H.W.M ...
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Connor, L.
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Damstra, Sieds
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Dénes, H.
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Hess, K. M.
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van der Hulst, J ...
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Hut, B.
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Ivashina, Marian ...
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Loose, G. M.
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Lucero, D. M.
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Maan, Y.
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Mika,
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Moss, V. A.
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Mulder, H.
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Oostrum, L. C.
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Ruiter, Mark
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Van Der Schuur, ...
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Smits, R.
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Vermaas, N.
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Vohl, D.
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Ziemke, J.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Meteorology and ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astronomy and As ...
- By the university
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Chalmers University of Technology