EC 22536-5304: SALT identifies a new lead-rich intermediate helium subdwarf
dc.contributor | Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK; School of Physics, Trinity College Dublin, College Green, Dublin 2, Ireland; Institute of Astronomy, University of Cambridge, Cambridge CB3 0HA, UK | |
dc.contributor | South African Astronomical Observatory, PO Box 9, Observatory 7935, South Africa; Southern African Large Telescope Foundation, PO Box 9, Observatory 7935, South Africa | |
dc.contributor.author | Jeffery, C. S. | |
dc.contributor.author | Miszalski, B. | |
dc.date.accessioned | 2024-02-21T11:03:34Z | |
dc.date.available | 2024-02-21T11:03:34Z | |
dc.date.issued | 2019-10-01T00:00:00Z | |
dc.identifier.doi | 10.1093/mnras/stz2231 | |
dc.identifier.doi | 10.48550/arXiv.1908.02500 | |
dc.identifier.other | 2019arXiv190802500J | |
dc.identifier.other | 2019MNRAS.tmp.2154J | |
dc.identifier.other | astro-ph.SR | |
dc.identifier.other | 2019MNRAS.tmp.2154J | |
dc.identifier.other | 10.1093/mnras/stz2231 | |
dc.identifier.other | 2019MNRAS.489.1481J | |
dc.identifier.other | 10.48550/arXiv.1908.02500 | |
dc.identifier.other | 2019arXiv190802500J | |
dc.identifier.other | arXiv:1908.02500 | |
dc.identifier.other | 0000-0003-1759-0302 | |
dc.identifier.other | - | |
dc.identifier.uri | http://hdl.handle.net/20.500.14302/1879 | |
dc.description.abstract | SALT spectra of the helium-rich hot subdwarf EC 22536-5304 show strong absorption lines of triply ionized lead. Analysis of the HRS spectrum and a follow-up SALT/RSS spectrum show EC 22536-5304 to have surface properties (temperature, gravity, helium/hydrogen ratio) similar to other heavy-metal subdwarfs. With a lead overabundance of 4.8 dex relative to solar, EC 22536-5304 is the most lead-rich intermediate helium subdwarf discovered so far. | |
dc.publisher | Monthly Notices of the Royal Astronomical Society | |
dc.title | EC 22536-5304: SALT identifies a new lead-rich intermediate helium subdwarf | |
dc.type | article | |
dc.source.journal | MNRAS | |
dc.source.journal | MNRAS.489 | |
dc.source.volume | 489 | |
refterms.dateFOA | 2024-02-21T11:03:34Z | |
dc.identifier.bibcode | 2019MNRAS.489.1481J |