We present our analysis of the Type II supernova DLT16am (SN 2016ija). The object was discovered during the ongoing D < 40 Mpc (DLT40) one-day cadence supernova search at r similar to 20.1 mag in the "edge-on" nearby (D = 20.0 +/- 4.0 Mpc) galaxy NGC 1532. The subsequent prompt and high-cadenced spectroscopic and photometric follow-up revealed a highly extinguished transient, with E(B - V) = 1.95 +/- 0.15 mag, consistent with a standard extinction law with R-V = 3.1 and a bright (M-V = -18.48 +/- 0.77 mag) absolute peak magnitude. A comparison of the photometric features with those of large samples of SNe II reveals a fast rise for the derived luminosity and a relatively short plateau phase, with a slope of S-50V = 0.84 +/- 0.04 mag/50 days, consistent with the photometric properties typical of those of fast-declining SNe II. Despite the large uncertainties on the distance and the extinction in the direction of DLT16am, the measured photospheric expansion velocity and the derived absolute V-band magnitude at similar to 50 days after the explosion match the existing luminosity-velocity relation for SNe II.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/626535 |
| Date | 23 January 2018 |
| Creators | Tartaglia, L., Sand, D. J., Valenti, S., Wyatt, S., Anderson, J. P., Arcavi, I., Ashall, C., Botticella, M. T., Cartier, R., Chen, T.-W., Cikota, A., Coulter, D., Valle, M. Della, Foley, R. J., Gal-Yam, A., Galbany, L., Gall, C., Haislip, J. B., Harmanen, J., Hosseinzadeh, G., Howell, D. A., Hsiao, E. Y., Inserra, C., Jha, S. W., Kankare, E., Kilpatrick, C. D., Kouprianov, V. V., Kuncarayakti, H., Maccarone, T. J., Maguire, K., Mattila, S., Mazzali, P. A., McCully, C., Melandri, A., Morrell, N., Phillips, M. M., Pignata, G., Piro, A. L., Prentice, S., Reichart, D. E., Rojas-Bravo, C., Smartt, S. J., Smith, K. W., Sollerman, J., Stritzinger, M. D., Sullivan, M., Taddia, F., Young, D. R. |
| Contributors | Univ Arizona, Dept Astron, Univ Arizona, Steward Observ |
| Publisher | IOP PUBLISHING LTD |
| Source Sets | University of Arizona |
| Language | English |
| Detected Language | English |
| Type | Article |
| Rights | © 2018. The American Astronomical Society. All rights reserved. |
| Relation | http://stacks.iop.org/0004-637X/853/i=1/a=62?key=crossref.ac25350106cfb4c7d554714759f1994b |
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