Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28807
DC Field | Value | Language |
---|---|---|
dc.contributor.author | PAPITTO, ALESSANDRO | en_US |
dc.contributor.author | Rea, N. | en_US |
dc.contributor.author | Coti Zelati, F. | en_US |
dc.contributor.author | DE MARTINO, Domitilla | en_US |
dc.contributor.author | Scaringi, S. | en_US |
dc.contributor.author | CAMPANA, Sergio | en_US |
dc.contributor.author | de Ońa Wilhelmi, E. | en_US |
dc.contributor.author | Knigge, C. | en_US |
dc.contributor.author | Serenelli, A. | en_US |
dc.contributor.author | STELLA, Luigi | en_US |
dc.contributor.author | Torres, D. F. | en_US |
dc.contributor.author | D'AVANZO, Paolo | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.date.accessioned | 2020-12-11T16:30:30Z | - |
dc.date.available | 2020-12-11T16:30:30Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 2041-8205 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28807 | - |
dc.description.abstract | We report on the first continuous, 80-day optical monitoring of the transitional millisecond pulsar PSR J1023+0038 carried out in mid 2017 with Kepler in the K2 configuration, when an X-ray subluminous accretion disk was present in the binary. Flares lasting from minutes to 14 hr were observed for 15.6% of the time, which is a larger fraction than previously reported on the basis of X-ray and past optical observations, and more frequently when the companion was at superior conjunction of the orbit. A sinusoidal modulation at the binary orbital period was also present with an amplitude of ≃16%, which varied by a few percent over timescales of days, and with a maximum that took place 890 ± 85 s earlier than the superior conjunction of the donor. We interpret this phenomena in terms of reprocessing of the X-ray emission by an asymmetrically heated companion star surface and/or a non-axisymmetric outflow possibly launched close to the inner Lagrangian point. Furthermore, the non-flaring average emission varied by up to ≈40% over a timescale of days in the absence of correspondingly large variations of the irradiating X-ray flux. The latter suggests that the observed changes in the average optical luminosity might be due to variations of the geometry, size, and/or mass accretion rate in the outer regions of the accretion disk. | en_US |
dc.language.iso | eng | en_US |
dc.title | The First Continuous Optical Monitoring of the Transitional Millisecond Pulsar PSR J1023+0038 with Kepler | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8213/aabee9 | en_US |
dc.identifier.scopus | 2-s2.0-85047421987 | en_US |
dc.identifier.isi | 000431647400003 | en_US |
dc.identifier.url | https://doi.org/10.3847/2041-8213/aabee9 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 858 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | L12 | en_US |
dc.relation.numberofpages | 6 | en_US |
dc.relation.article | L12 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 13 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018ApJ...858L..12P | en_US |
dc.relation.fund | H2020 | en_US |
dc.relation.project | TMSP (Mass accretion and ejection in transitional millisecond pulsars) | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | 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.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.project.grantno | 660657 | - |
crisitem.journal.journalissn | 2041-8205 | - |
crisitem.journal.ance | E196528 | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0001-6289-7413 | - |
crisitem.author.orcid | 0000-0002-5069-4202 | - |
crisitem.author.orcid | 0000-0001-6278-1576 | - |
crisitem.author.orcid | 0000-0002-0018-1687 | - |
crisitem.author.orcid | 0000-0001-7164-1508 | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Papitto_2018_ApJL_858_L12.pdf | Pdf editoriale | 2.23 MB | Adobe PDF | View/Open |
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