H II region metallicity constraints near the site of the strongly lensed supernova “SN Refsdal” at redshift 1.49
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Yuan, Tiantian; Kobayashi, Chiaki; Kewley, Lisa
Description
We present the local H II region metallicity near the site of the recently discovered multiply lensed supernova (SN; "SN Refsdal") at redshift 1.49. "SN Refsdal" is located at the outer spiral arm (∼7 kpc) of the lensed host galaxy, which we previously reported to exhibit a steep negative galactocentric metallicity gradient. Based on our updated near-infrared integral field spectroscopic data, the gas-phase metallicity averaged in an intrinsic radius of ∼550 pc surrounding an H ii region ∼200...[Show more]
dc.contributor.author | Yuan, Tiantian | |
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dc.contributor.author | Kobayashi, Chiaki | |
dc.contributor.author | Kewley, Lisa | |
dc.date.accessioned | 2015-09-09T05:46:47Z | |
dc.date.available | 2015-09-09T05:46:47Z | |
dc.identifier.issn | 2041-8213 | |
dc.identifier.uri | http://hdl.handle.net/1885/15286 | |
dc.description.abstract | We present the local H II region metallicity near the site of the recently discovered multiply lensed supernova (SN; "SN Refsdal") at redshift 1.49. "SN Refsdal" is located at the outer spiral arm (∼7 kpc) of the lensed host galaxy, which we previously reported to exhibit a steep negative galactocentric metallicity gradient. Based on our updated near-infrared integral field spectroscopic data, the gas-phase metallicity averaged in an intrinsic radius of ∼550 pc surrounding an H ii region ∼200 pc away from the SN site is 12 + log(O/H)PP04N2 ≤ 8.67. The metallicity averaged over nine H II regions at similar galactocentric distances (∼5-7 kpc) as "SN Refsdal" is constrained to be 12 + log(O/H)PP04N2 ≤ 8.11. Given the fortuitous discovery of "SN Refsdal" in an advantageously lensed face-on spiral, this is the first observational constraint on the local metallicity environment of an SN site at redshift z > 1. | |
dc.description.sponsorship | L.K. acknowledges the support of an ARC Future Fellowship and ARC Discovery Project DP130103925. | |
dc.publisher | American Astronomical Society | |
dc.rights | © 2015. The American Astronomical Society. http://www.sherpa.ac.uk/romeo/issn/2041-8205/..."Publisher's version/PDF may be used. On any website or open access repository" from SHERPA/RoMEO site (as at 9/09/15). | |
dc.source | The Astrophysical Journal | |
dc.subject | galaxies: abundances | |
dc.subject | gravitational lensing: strong | |
dc.subject | supernovae: general | |
dc.title | H II region metallicity constraints near the site of the strongly lensed supernova “SN Refsdal” at redshift 1.49 | |
dc.type | Journal article | |
local.identifier.citationvolume | 804 | |
dc.date.issued | 2015-05-01 | |
local.identifier.ariespublication | a383154xPUB2097 | |
local.publisher.url | http://aas.org/ | |
local.type.status | Published Version | |
local.contributor.affiliation | Yuan, T., Research School of Astronomy and Astrophysics, The Australian National University | |
local.contributor.affiliation | Kobayashi, C., Research School of Astronomy and Astrophysics, The Australian National University | |
local.contributor.affiliation | Kewley, L. S., Research School of Astronomy and Astrophysics, The Australian National University | |
dc.relation | http://purl.org/au-research/grants/arc/DP130103925 | |
local.bibliographicCitation.issue | 1 | |
local.bibliographicCitation.startpage | L14 | |
local.identifier.doi | 10.1088/2041-8205/804/1/L14 | |
Collections | ANU Research Publications |
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