Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/25204
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bode, M. F. | en_US |
dc.contributor.author | Darnley, M. J. | en_US |
dc.contributor.author | Beardmore, A. P. | en_US |
dc.contributor.author | Osborne, J. P. | en_US |
dc.contributor.author | Page, K. L. | en_US |
dc.contributor.author | Walter, F. M. | en_US |
dc.contributor.author | Krautter, J. | en_US |
dc.contributor.author | MELANDRI, Andrea | en_US |
dc.contributor.author | Ness, J. -U. | en_US |
dc.contributor.author | O'Brien, T. J. | en_US |
dc.contributor.author | Orio, M. | en_US |
dc.contributor.author | Schwarz, G. J. | en_US |
dc.contributor.author | Shara, M. M. | en_US |
dc.contributor.author | Starrfield, S. | en_US |
dc.date.accessioned | 2020-05-27T07:54:02Z | - |
dc.date.available | 2020-05-27T07:54:02Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25204 | - |
dc.description.abstract | Nova LMC 2009a is confirmed as a recurrent nova (RN) from positional coincidence with nova LMC 1971b. The observational data set is one of the most comprehensive for any Galactic or extragalactic RN: optical and near-IR photometry from outburst until over 6 years later; optical spectra for the first 6 months, and Swift satellite ultraviolet (UV) and X-ray observations from 9 days to almost 1 year post-outburst. We find M<SUB>V</SUB> = -8.4 ± 0.8<SUB>r</SUB> ± 0.7<SUB>s</SUB> and expansion velocities between 1000 and 4000 km s<SUP>-1</SUP>. Coronal line emission before day 9 indicates shocks in the ejecta. Strengthening of He IIλ4686 preceded the emergence of the super-soft source (SSS) in X-rays at ∼63-70 days, which was initially very variable. Periodic modulations, P = 1.2 days, most probably orbital in nature, were evident in the UV and optical from day 43. Subsequently, the SSS shows an oscillation with the same period but with a delay of 0.28P. The progenitor system has been identified; the secondary is most likely a sub-giant feeding a luminous accretion disk. Properties of the SSS infer a white dwarf (WD) mass 1.1 M<SUB>☉</SUB> ≲ M<SUB>WD</SUB> ≲ 1.3 M<SUB>☉</SUB>. If the accretion occurs at a constant rate, {\dot{M}}<SUB>{{acc</SUB>}}≃ {3.6}<SUB>-2.5</SUB><SUP>+4.7</SUP>× {10}<SUP>-7</SUP> {M}<SUB>☉ </SUB> yr<SUP>-1</SUP> is needed, consistent with nova models for an inter-eruption interval of 38 years, low outburst amplitude, progenitor position in the color-magnitude diagram, and spectral energy distribution at quiescence. We note striking similarities between LMC 2009a and the Galactic nova KT Eri, suggesting that KT Eri is a candidate RN. | en_US |
dc.language.iso | eng | en_US |
dc.title | Pan-chromatic Observations of the Recurrent Nova LMC 2009a (LMC 1971b) | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/818/2/145 | en_US |
dc.identifier.scopus | 2-s2.0-84960153257 | en_US |
dc.identifier.isi | 000372302800044 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/818/2/145 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 818 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 145 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 14 | 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 | 2016ApJ...818..145B | 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. Roma | - |
crisitem.author.orcid | 0000-0002-2810-2143 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1601.00474.pdf | postprint | 3.09 MB | Adobe PDF | View/Open |
Bode_2016_ApJ_818_145.pdf | pdf editoriale | 3.18 MB | Adobe PDF | View/Open |
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