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Table · dataset · 2023

Spectroscopic follow-up of Type Ib SN 2017iro

Listed in IVOA Registry (Virtual Observatory)

We report results of optical imaging and low-resolution spectroscopic monitoring of supernova (SN) 2017iro that occurred in the nearby (~31Mpc) galaxy NGC 5480.

Description

The HeI{lambda}5876 feature present in the earliest spectrum (-7d) classified it as a Type Ib SN. The follow-up observations span from -7 to +266d with respect to the B-band maximum.

With a peak absolute magnitude in V band M_V_=-17.76+/-0.15mag and bolometric luminosity log_10_L=42.39+/-0.09erg/s, SN 2017iro is a moderately luminous Type Ib SN. The overall light-curve evolution of SN 2017iro is similar to that of SN 2012au and SN 2009jf during the early (up to ~100d) and late phases (>150d), respectively. The line velocities of both FeII{lambda}5169 and HeI{lambda}5876 are ~9000km/s near the peak.

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The analysis of the nebular phase spectrum (~+209d) indicates an oxygen mass of ~0.35M_{sun}_. The smaller [OI]/[CaII] flux ratio of ~1 favors a progenitor with a zero-age main-sequence mass in the range ~13-15M_{sun}_, most likely in a binary system, similar to the case of iPTF13bvn. The explosion parameters are estimated by applying different analytical models to the quasi-bolometric light curve of SN 2017iro. ^56^Ni mass synthesized in the explosion has a range of ~0.05-0.10M_{sun}_, ejecta mass ~1.4-4.3M_{sun}_, and kinetic energy ~(0.8-1.9)x10^51^erg.

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Catalogue records · 2

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Stated by source
Optical
Inferred from text
Astronomical sciences 72% · Imaging 75%
Provenance · 1 source records, 10 field assertions
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IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/apj/927/6114 d agoJSON v1
FieldAssertionExtractorEvidence
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concepts[field].anzsrc:group:5101enrichment · IVOA Registrytaxonomy-embedding@1.1.0title+keywords+description (72%)
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].local:modality:imagingenrichment · IVOA Registrykeyword-concept-rules@1.0.0title+description (75%)
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0