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- W2149082495 abstract "We present photometric and spectroscopic observations at optical and near-infrared wavelengths of the nearby type Ic supernova 2007gr. These represent the most extensive data-set to date of any supernova of this sub-type, with frequent coverage from shortly after discovery to more than one year post-explosion. We deduce a rise time to <i>B<i/>-band maximum of d. We find a peak <i>B<i/>-band magnitude of , and light curves which are remarkably similar to the so-called “hypernova” SN 2002ap. In contrast, the spectra of SNe 2007gr and 2002ap show marked differences, not least in their respective expansion velocities. We attribute these differences primarily to the density profiles of their progenitor stars at the time of explosion i.e. a more compact star for SN 2007gr compared to SN 2002ap. From the quasi-bolometric light curve of SN 2007gr, we estimate that of <sup>56<sup/>Ni was produced in the explosion. Our near-infrared (IR) spectra clearly show the onset and disappearance of the first overtone of carbon monoxide (CO) between ~70 to 175 d relative to <i>B<i/>-band maximum. The detection of the CO molecule implies that ionised He was not microscopically mixed within the carbon/oxygen layers. From the optical spectra, near-IR light curves, and colour evolution, we find no evidence for dust condensation in the ejecta out to about +400 d. Given the combination of unprecedented temporal coverage, and high signal-to-noise data, we suggest that SN 2007gr could be used as a template object for supernovae of this sub-class." @default.
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- W2149082495 date "2009-09-24" @default.
- W2149082495 modified "2023-10-18" @default.
- W2149082495 title "Extensive optical and near-infrared observations of the nearby, narrow-lined type Ic SN 2007gr: days 5 to 415" @default.
- W2149082495 cites W1672507132 @default.
- W2149082495 cites W1913860194 @default.
- W2149082495 cites W1930280347 @default.
- W2149082495 cites W1964595748 @default.
- W2149082495 cites W1966018688 @default.
- W2149082495 cites W1967934331 @default.
- W2149082495 cites W1970511825 @default.
- W2149082495 cites W1978368813 @default.
- W2149082495 cites W1979411769 @default.
- W2149082495 cites W1985555711 @default.
- W2149082495 cites W1989528354 @default.
- W2149082495 cites W1992526765 @default.
- W2149082495 cites W1993264156 @default.
- W2149082495 cites W1997987368 @default.
- W2149082495 cites W2005044669 @default.
- W2149082495 cites W2008698617 @default.
- W2149082495 cites W2011116802 @default.
- W2149082495 cites W2012202305 @default.
- W2149082495 cites W2013131400 @default.
- W2149082495 cites W2016761921 @default.
- W2149082495 cites W2016929317 @default.
- W2149082495 cites W2019841704 @default.
- W2149082495 cites W2019945759 @default.
- W2149082495 cites W2025530278 @default.
- W2149082495 cites W2029990369 @default.
- W2149082495 cites W2031028407 @default.
- W2149082495 cites W2031411303 @default.
- W2149082495 cites W2031460956 @default.
- W2149082495 cites W2031670937 @default.
- W2149082495 cites W2034830473 @default.
- W2149082495 cites W2036034556 @default.
- W2149082495 cites W2038080753 @default.
- W2149082495 cites W2039816044 @default.
- W2149082495 cites W2040637164 @default.
- W2149082495 cites W2041221272 @default.
- W2149082495 cites W2042972729 @default.
- W2149082495 cites W2044294779 @default.
- W2149082495 cites W2046394093 @default.
- W2149082495 cites W2047862113 @default.
- W2149082495 cites W2050470132 @default.
- W2149082495 cites W2051304339 @default.
- W2149082495 cites W2051587271 @default.
- W2149082495 cites W2051956204 @default.
- W2149082495 cites W2052792282 @default.
- W2149082495 cites W2053287308 @default.
- W2149082495 cites W2057331691 @default.
- W2149082495 cites W2057398522 @default.
- W2149082495 cites W2061736919 @default.
- W2149082495 cites W2066117187 @default.
- W2149082495 cites W2067073045 @default.
- W2149082495 cites W2067460639 @default.
- W2149082495 cites W2068426571 @default.
- W2149082495 cites W2074282760 @default.
- W2149082495 cites W2074544012 @default.
- W2149082495 cites W2077329220 @default.
- W2149082495 cites W2078647871 @default.
- W2149082495 cites W2079293916 @default.
- W2149082495 cites W2090406063 @default.
- W2149082495 cites W2093869873 @default.
- W2149082495 cites W2095066943 @default.
- W2149082495 cites W2105797458 @default.
- W2149082495 cites W2109613529 @default.
- W2149082495 cites W2110177531 @default.
- W2149082495 cites W2111817932 @default.