Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24188
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kopač, D. | en_US |
dc.contributor.author | Mundell, C. G. | en_US |
dc.contributor.author | Kobayashi, S. | en_US |
dc.contributor.author | Virgili, F. J. | en_US |
dc.contributor.author | Harrison, R. | en_US |
dc.contributor.author | Japelj, J. | en_US |
dc.contributor.author | Guidorzi, C. | en_US |
dc.contributor.author | MELANDRI, Andrea | en_US |
dc.contributor.author | Gomboc, A. | en_US |
dc.date.accessioned | 2020-04-23T09:39:28Z | - |
dc.date.available | 2020-04-23T09:39:28Z | - |
dc.date.issued | 2015 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24188 | - |
dc.description.abstract | We present predictions of centimeter and millimeter radio emission from reverse shocks (RSs) in the early afterglows of gamma-ray bursts (GRBs) with the goal of determining their detectability with current and future radio facilities. Using a range of GRB properties, such as peak optical brightness and time, isotropic equivalent gamma-ray energy, and redshift, we simulate radio light curves in a framework generalized for any circumburst medium structure and including a parameterization of the shell thickness regime that is more realistic than the simple assumption of thick- or thin-shell approximations. Building on earlier work by Mundell et al. and Melandri et al. in which the typical frequency of the RS was suggested to lie at radio rather than optical wavelengths at early times, we show that the brightest and most distinct RS radio signatures are detectable up to 0.1-1 day after the burst, emphasizing the need for rapid radio follow-up. Detection is easier for bursts with later optical peaks, high isotropic energies, lower circumburst medium densities, and at observing frequencies that are less prone to synchrotron self-absorption effects—typically above a few GHz. Given recent detections of polarized prompt gamma-ray and optical RS emission, we suggest that detection of polarized radio/millimeter emission will unambiguously confirm the presence of low-frequency RSs at early time. | en_US |
dc.language.iso | eng | en_US |
dc.title | Radio Flares from Gamma-ray Bursts | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1088/0004-637X/806/2/179 | en_US |
dc.identifier.scopus | 2-s2.0-84933510988 | en_US |
dc.identifier.isi | 000357129500034 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.1088/0004-637X/806/2/179 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 806 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 179 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 9 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2015ApJ...806..179K | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-2810-2143 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1503.08428.pdf | postprint | 4.43 MB | Adobe PDF | View/Open |
Kopač_2015_ApJ_806_179.pdf | pdf editoriale | 13.73 MB | Adobe PDF | View/Open |
Page view(s)
93
checked on Sep 20, 2024
Download(s)
35
checked on Sep 20, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.