Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/32686
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chugai, N. N. | en_US |
dc.contributor.author | Danziger, I. J. | en_US |
dc.contributor.author | DELLA VALLE, Massimo | en_US |
dc.date.accessioned | 2022-10-04T14:35:01Z | - |
dc.date.available | 2022-10-04T14:35:01Z | - |
dc.date.issued | 1995 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32686 | - |
dc.description.abstract | An optical spectrum of SN 1978K (NGC 1313) in the range of 4000-7200 A was obtained on 1992 October 22, i.e. 14.4 yr after the outburst. The spectrum is still dominated by the narrow (FWHM<=560 km s^-1) Hα line having a luminosity 2.2x10^38 erg s^-1 (D=3.7 Mpc, A_V=0.64 mag), 1.5-2 times lower than the values derived from published data for 1989 December and 1990 October. There is no evidence for a broad Hα component (HWZI~3000-10000 km s^-1) with an upper limit of luminosity ~3x10^36 erg s^-1. We suggest that the optical emission of SN 1978K originates from radiative shock waves propagating in the dense (~4x10^6 cm^-3) clouds of a circumstellar wind. The cloud shock waves are driven by the expanding low-mass (<e1>M<=</e1>2M_solar) supernova ejecta with the present radius ~(2-3)x10^17 cm. The mass of circumstellar material involved in the dynamical interaction is ~=1M_solar and the corresponding mass-loss rate of pre-SN wind is ~2x10^-4 M_solar yr^-1. The observed X-ray emission is attributed to the shock waves in the boundary layer of the same population of clouds. Alternatively, however, the X-ray emission might emanate from the shock waves in a different cloud population with a lower density. | en_US |
dc.language.iso | eng | en_US |
dc.title | Optical spectrum of SN 1978K: emission from shocked clouds in the circumstellar wind | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/276.2.530 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/276/2/530/998888 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 276 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 530 | en_US |
dc.relation.lastpage | 536 | en_US |
dc.type.referee | REF_1 | 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 | 1995MNRAS.276..530C | 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.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0003-3142-5020 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
document.pdf | Pdf editoriale | 803.25 kB | Adobe PDF | View/Open |
Page view(s)
51
checked on Jul 19, 2024
Download(s)
11
checked on Jul 19, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.