dc.date.accessioned | 2020-05-13T19:55:09Z | |
dc.date.available | 2020-05-13T19:55:09Z | |
dc.date.created | 2020-01-16T14:13:50Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Lopez, S. Tejos, N. Barrientos, L. F. Ledoux, C. Sharon, Keren Katsianis, A. Florian, M. K. Rivera-Thorsen, Thøger Emil Juul Bayliss, Matthew B. Dahle, Håkon Fernandez-Figueroa, A. Gladders, Michael D. Gronke, Max Balthasar Hamel, M. Pessa, I. Rigby, Jane R. . Slicing the cool circumgalactic medium along the major axis of a star-forming galaxy at z = 0.7. Monthly notices of the Royal Astronomical Society. 2019, 491(3), 4442-4461 | |
dc.identifier.uri | http://hdl.handle.net/10852/75573 | |
dc.description.abstract | We present spatially resolved Echelle spectroscopy of an intervening Mg II–Fe II–Mg I absorption-line system detected at zabs = 0.73379 towards the giant gravitational arc PSZ1 G311.65–18.48. The absorbing gas is associated with an inclined disc-like star-forming galaxy, whose major axis is aligned with the two arc-segments reported here. We probe in absorption the galaxy’s extended disc continuously, at ≈3 kpc sampling, from its inner region out to 15× the optical radius. We detect strong (W27960>0.3Å) coherent absorption along 13 independent positions at impact parameters D = 0–29 kpc on one side of the galaxy, and no absorption at D = 28–57 kpc on the opposite side (all de-lensed distances at zabs). We show that (1) the gas distribution is anisotropic; (2) W27960, W26000, W28520, and the ratio W26000/W27960, all anticorrelate with D; (3) the W27960–D relation is not cuspy and exhibits significantly less scatter than the quasar-absorber statistics; (4) the absorbing gas is co-rotating with the galaxy out to D ≲ 20 kpc, resembling a ‘flat’ rotation curve, but at D ≳ 20 kpc velocities decline below the expectations from a 3D disc-model extrapolated from the nebular [O II] emission. These signatures constitute unambiguous evidence for rotating extra-planar diffuse gas, possibly also undergoing enriched accretion at its edge. Arguably, we are witnessing some of the long-sought processes of the baryon cycle in a single distant galaxy expected to be representative of such phenomena. | en_US |
dc.language | EN | |
dc.title | Slicing the cool circumgalactic medium along the major axis of a star-forming galaxy at z = 0.7 | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Lopez, S. | |
dc.creator.author | Tejos, N. | |
dc.creator.author | Barrientos, L. F. | |
dc.creator.author | Ledoux, C. | |
dc.creator.author | Sharon, Keren | |
dc.creator.author | Katsianis, A. | |
dc.creator.author | Florian, M. K. | |
dc.creator.author | Rivera-Thorsen, Thøger Emil Juul | |
dc.creator.author | Bayliss, Matthew B. | |
dc.creator.author | Dahle, Håkon | |
dc.creator.author | Fernandez-Figueroa, A. | |
dc.creator.author | Gladders, Michael D. | |
dc.creator.author | Gronke, Max Balthasar | |
dc.creator.author | Hamel, M. | |
dc.creator.author | Pessa, I. | |
dc.creator.author | Rigby, Jane R. | |
cristin.unitcode | 185,15,3,0 | |
cristin.unitname | Institutt for teoretisk astrofysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1774955 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Monthly notices of the Royal Astronomical Society&rft.volume=491&rft.spage=4442&rft.date=2019 | |
dc.identifier.jtitle | Monthly notices of the Royal Astronomical Society | |
dc.identifier.volume | 491 | |
dc.identifier.issue | 3 | |
dc.identifier.startpage | 4442 | |
dc.identifier.endpage | 4461 | |
dc.identifier.doi | https://doi.org/10.1093/mnras/stz3183 | |
dc.identifier.urn | URN:NBN:no-78682 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0035-8711 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/75573/1/stz3183.pdf | |
dc.type.version | PublishedVersion | |