Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30727
DC Field | Value | Language |
---|---|---|
dc.contributor.author | van Putten, Maurice H. P. M. | en_US |
dc.contributor.author | DELLA VALLE, Massimo | en_US |
dc.date.accessioned | 2021-04-09T17:00:38Z | - |
dc.date.available | 2021-04-09T17:00:38Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30727 | - |
dc.description.abstract | The recent LIGO event GW170817 is the merger of a double neutron star system with an associated short GRB170817A with 2.9 ± 0.3 s soft emission over 8-70 keV. This association has a Gaussian equivalent level of confidence of 5.1σ. The merger produced a hypermassive neutron star or stellar mass black hole with prompt or continuous energy output powering GRB170817A. Here, we report on a possible detection of extended emission (EE) in gravitational radiation during GRB170817A: a descending chirp with characteristic time-scale τ_s=3.01± 0.2 s in a (H1,L1)-spectrogram up to 700 Hz with Gaussian equivalent level of confidence greater than 3.3σ based on causality alone following edge detection applied to (H1,L1)-spectrograms merged by frequency coincidences. Additional confidence derives from the strength of this EE. The observed frequencies below 1 kHz indicate a hypermassive magnetar rather than a black hole, spinning down by magnetic winds and interactions with dynamical mass ejecta. | en_US |
dc.language.iso | eng | en_US |
dc.title | Observational evidence for extended emission to GW170817 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnrasl/sly166 | en_US |
dc.identifier.scopus | 2-s2.0-85057142122 | en_US |
dc.identifier.url | https://academic.oup.com/mnrasl/article/482/1/L46/5090425 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 482 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L46 | en_US |
dc.relation.lastpage | L49 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019MNRAS.482L..46V | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0003-3142-5020 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Observational evidence for extended emission to GW170817 - sly166.pdf | PDF editoriale | 1.21 MB | Adobe PDF | View/Open |
Page view(s)
38
checked on Apr 19, 2024
Download(s)
18
checked on Apr 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.