Discovery of optical outflows and inflows in the black hole candidate GRS 1716−249

Simple item page
dc.contributor.authorCúneo, V. A.
dc.contributor.authorMuñoz-Darias, T.
dc.contributor.authorSánchez-Sierras, J.
dc.contributor.authorJiménez-Ibarra, F.
dc.contributor.authorArmas Padilla, M.
dc.contributor.authorBuckle, D. A. H.
dc.contributor.authorCasares, J.
dc.contributor.authorCharles, P.
dc.contributor.authorCorral-Santana, J. M.
dc.contributor.authorFender, R.
dc.contributor.authorFernández-Ontiveros, J. A.
dc.contributor.authorMata Sánchez, D.
dc.contributor.authorPanizo-Espinar, G.
dc.contributor.authorPonti, G.
dc.contributor.authorTorr, M. A. P.
dc.date.accessioned2022-05-24T14:48:09Z
dc.date.available2022-05-24T14:48:09Z
dc.date.issued2020
dc.description.abstractWe present optical spectroscopy obtained with the GTC, VLT, and SALT telescopes during the decline of the 2016–2017 outburst of the black hole candidate GRS 1716−249 (Nova Oph 1993). Our 18-epoch data set spans 6 months and reveals that the observational properties of the main emission lines are very variable, even on time-scales of a few hours. Several epochs are characterized by P-Cyg (as well as flat-top and asymmetric) profiles in the  Hα,  Hβ, and He  ii (λ4686) emission lines, implying the presence of an accretion disc wind, which is likely hot and dense. The wind's terminal velocity (∼2000 km s−1) is similar to that observed in other black hole X-ray transients. These lines also show transient and sharp red-shifted absorptions, taking the form of inverted P-Cyg profiles. We argue that these profiles can be explained by the presence of infalling material at ∼1300 km s−1. We propose a failed wind scenario to explain this inflow and discuss other alternatives, such as obscuration produced by an accretion-related structure (e.g. the gas stream) in a high inclination system.
dc.fuente.origenOUP
dc.identifier.doi10.1093/mnras/staa2241
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/staa2241
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9269530
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/64272
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final32
dc.pagina.inicio25
dc.revistaMonthly Notices of the Royal Astronomical Society
dc.rightsacceso restringido
dc.subjectAccretion
dc.subjectAccretion discs
dc.subjectBlack hole physics
dc.subjectStars: individual: GRS 1716−249
dc.subjectStars: winds
dc.subjectOutflows
dc.subjectX-rays: binaries
dc.titleDiscovery of optical outflows and inflows in the black hole candidate GRS 1716−249es_ES
dc.typeartículo
dc.volumen498
Files
Collections
Artículos de revistas