kth.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Measuring the Hubble constant with a sample of kilonovae
Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.;CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA..ORCID-id: 0000-0002-8262-2924
APC, UMR 7164, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris, France..
Univ Potsdam, Inst Phys & Astron, Haus 28,Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany.;Nikhef, Sci Pk 105, NL-1098 XG Amsterdam, Netherlands..
Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA..
Visa övriga samt affilieringar
2020 (Engelska)Ingår i: Nature Communications, E-ISSN 2041-1723, Vol. 11, nr 1, artikel-id 4129Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Kilonovae produced by the coalescence of compact binaries with at least one neutron star are promising standard sirens for an independent measurement of the Hubble constant (H-0). Through their detection via follow-up of gravitational-wave (GW), short gamma-ray bursts (sGRBs) or optical surveys, a large sample of kilonovae (even without GW data) can be used for H-0 contraints. Here, we show measurement of H-0 using light curves associated with four sGRBs, assuming these are attributable to kilonovae, combined with GW170817. Including a systematic uncertainty on the models that is as large as the statistical ones, we find H0=73.8-5.8+6.3</mml:msubsup><mml:mspace width="0.33em"></mml:mspace>km<mml:mspace width="0.33em"></mml:mspace>s-1<mml:mspace width="0.33em"></mml:mspace>Mpc-1 and <mml:msub>H0=71.2-3.1+3.2<mml:mspace width="0.33em"></mml:mspace>km<mml:mspace width="0.33em"></mml:mspace>s-1<mml:mspace width="0.33em"></mml:mspace>Mpc-1 for two different kilonova models that are consistent with the local and inverse-distance ladder measurements. For a given model, this measurement is about a factor of 2-3 more precise than the standard-siren measurement for GW170817 using only GWs. Kilonovae observations can be used to out constraints on the Hubble constant (H0). Here, the authors show H0 measurements by combining light curves of four short gamma-ray burts with GW170817 are about a factor of 2-3 more precise than the standard-siren measurements using only gravitational-waves.

Ort, förlag, år, upplaga, sidor
Nature Publishing Group, 2020. Vol. 11, nr 1, artikel-id 4129
Nationell ämneskategori
Astronomi, astrofysik och kosmologi
Identifikatorer
URN: urn:nbn:se:kth:diva-281521DOI: 10.1038/s41467-020-17998-5ISI: 000563565300020PubMedID: 32807780Scopus ID: 2-s2.0-85089500189OAI: oai:DiVA.org:kth-281521DiVA, id: diva2:1502966
Anmärkning

QC 20201123

Tillgänglig från: 2020-11-23 Skapad: 2020-11-23 Senast uppdaterad: 2023-03-28Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextPubMedScopus

Person

Bulla, Mattia

Sök vidare i DiVA

Av författaren/redaktören
Coughlin, Michael W.Bulla, Mattia
Av organisationen
Nordic Institute for Theoretical Physics NORDITA
I samma tidskrift
Nature Communications
Astronomi, astrofysik och kosmologi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetricpoäng

doi
pubmed
urn-nbn
Totalt: 15 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf