Search: onr:"swepub:oai:DiVA.org:su-177462" >
Multimessenger aste...
Multimessenger asteroseismology of core-collapse supernovae
-
- Westernacher-Schneider, John Ryan (author)
- Univ Arizona, Dept Astron Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA.;Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada.;Perimeter Inst Theoret Phys, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada.;Univ Copenhagen, Niels Bohr Inst, DARK, Lyngbyvej 2, DK-2100 Copenhagen, Denmark.
-
- O'Connor, Evan (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm Univ, Dept Astron, AlbaNova, S-10961 Stockholm, Sweden.;Stockholm Univ, Oskar Klein Ctr, AlbaNova, S-10961 Stockholm, Sweden.
-
- O'Sullivan, Erin (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm Univ, Oskar Klein Ctr, AlbaNova, S-10961 Stockholm, Sweden.;Stockholm Univ, Dept Phys, AlbaNova, S-10961 Stockholm, Sweden.
-
show more...
-
- Tamborra, Irene (author)
- Univ Copenhagen, Niels Bohr Inst, DARK, Lyngbyvej 2, DK-2100 Copenhagen, Denmark.;Univ Copenhagen, Niels Bohr Inst, Niels Bohr Int Acad, DK-2100 Copenhagen, Denmark.
-
- Wu, Meng-Ru (author)
- Univ Copenhagen, Niels Bohr Inst, Niels Bohr Int Acad, DK-2100 Copenhagen, Denmark.;Acad Sinica, Inst Phys, Taipei 11529, Taiwan.;Acad Sinica, Inst Astron & Astrophys, Taipei 10617, Taiwan.
-
- Couch, Sean M. (author)
- Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.;Michigan State Univ, Dept Computat Math Sci & Engn, E Lansing, MI 48824 USA.;Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.;Michigan State Univ, Ctr Evolut Elements, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA.
-
- Malmenbeck, Felix (author)
- KTH,Fysik
-
show less...
-
Univ Arizona, Dept Astron Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA;Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada.;Perimeter Inst Theoret Phys, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada.;Univ Copenhagen, Niels Bohr Inst, DARK, Lyngbyvej 2, DK-2100 Copenhagen, Denmark. Institutionen för astronomi (creator_code:org_t)
- American Physical Society, 2019
- 2019
- English.
-
In: Physical Review D. - : American Physical Society. - 2470-0010 .- 2470-0029. ; 100:12
- Related links:
-
https://arxiv.org/ab...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- We investigate correlated gravitational wave and neutrino signals from rotating core-collapse supernovae with simulations. Using an improved mode identification procedure based on mode function matching, we show that a linear quadrupolar mode of the core produces a dual imprint on gravitational waves and neutrinos in the early post-bounce phase of the supernova. The angular harmonics of the neutrino emission are consistent with the mode energy around the neutrinospheres, which points to a mechanism for the imprint on neutrinos. Thus, neutrinos carry information about the mode amplitude in the outer region of the core, whereas gravitational waves probe deeper in. We also find that the best-fit mode function has a frequency bounded above by similar to 420 Hz, and yet the mode's frequency in our simulations is similar to 15% higher, due to the use of Newtonian hydrodynamics and a widely used pseudo-Newtonian gravity approximation. This overestimation is particularly important for the analysis of gravitational wave detectability and asteroseismology, pointing to limitations of pseudo-Newtonian approaches for these purposes, possibly even resulting in excitation of incorrect modes. In addition, mode frequency matching (as opposed to mode function matching) could be resulting in mode misidentification in recent work. Lastly, we evaluate the prospects of a multimessenger detection of the mode using current technology. The detection of the imprint on neutrinos is most challenging, with a maximum detection distance of similar to 1 kpc using the IceCube Neutrino Observatory. The maximum distance for detecting the complementary gravitational wave imprint is similar to 5 kpc using Advanced LIGO at design sensitivity.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Gravitational wave sources
- Gravitational waves
- Novae & supernovae
- Transient & explosive astronomical phenomena
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database