The delay of shock breakout due to circumstellar material evident in most type II supernovae
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The delay of shock breakout due to circumstellar material evident in most type II supernovae. / Förster, F.; Moriya, T. J.; Maureira, J. C.; Anderson, J. P.; Blinnikov, S.; Bufano, F.; Cabrera-Vives, G.; Clocchiatti, A.; Jaeger, T.; Estévez, P. A.; Galbany, L.; González-Gaitán, S.; Gräfener, G.; Hamuy, M.; Hsiao, E. Y.; Huentelemu, P.; Huijse, P.; Kuncarayakti, H.; Martínez, J.; Medina, G.; Olivares E., F.; Pignata, G.; Razza, A.; Reyes, I.; Martín, J. San; Smith, R. C.; Vera, E.; Vivas, A. K.; de Ugarte Postigo, A.; Yoon, S. C.; Ashall, C.; Fraser, M.; Gal-Yam, A.; Kankare, E.; Guillou, L. Le; Mazzali, P. A.; Walton, N. A.; Young, D. R.
In: Nature Astronomy, Vol. 2, No. 10, 01.10.2018, p. 808-818.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The delay of shock breakout due to circumstellar material evident in most type II supernovae
AU - Förster, F.
AU - Moriya, T. J.
AU - Maureira, J. C.
AU - Anderson, J. P.
AU - Blinnikov, S.
AU - Bufano, F.
AU - Cabrera-Vives, G.
AU - Clocchiatti, A.
AU - Jaeger, T.
AU - Estévez, P. A.
AU - Galbany, L.
AU - González-Gaitán, S.
AU - Gräfener, G.
AU - Hamuy, M.
AU - Hsiao, E. Y.
AU - Huentelemu, P.
AU - Huijse, P.
AU - Kuncarayakti, H.
AU - Martínez, J.
AU - Medina, G.
AU - Olivares E., F.
AU - Pignata, G.
AU - Razza, A.
AU - Reyes, I.
AU - Martín, J. San
AU - Smith, R. C.
AU - Vera, E.
AU - Vivas, A. K.
AU - de Ugarte Postigo, A.
AU - Yoon, S. C.
AU - Ashall, C.
AU - Fraser, M.
AU - Gal-Yam, A.
AU - Kankare, E.
AU - Guillou, L. Le
AU - Mazzali, P. A.
AU - Walton, N. A.
AU - Young, D. R.
N1 - Correction: https://www.nature.com/articles/s41550-018-0641-7
PY - 2018/10/1
Y1 - 2018/10/1
N2 - Type II supernovae (SNe II) originate from the explosion of hydrogen-rich supergiant massive stars. Their first electromagnetic signature is the shock breakout (SBO), a short-lived phenomenon that can last for hours to days depending on the density at shock emergence. We present 26 rising optical light curves of SN II candidates discovered shortly after explosion by the High Cadence Transient Survey and derive physical parameters based on hydrodynamical models using a Bayesian approach. We observe a steep rise of a few days in 24 out of 26 SN II candidates, indicating the systematic detection of SBOs in a dense circumstellar matter consistent with a mass loss rate of Ṁ> 10−4M⊙ yr−1 or a dense atmosphere. This implies that the characteristic hour-timescale signature of stellar envelope SBOs may be rare in nature and could be delayed into longer-lived circumstellar material SBOs in most SNe II.
AB - Type II supernovae (SNe II) originate from the explosion of hydrogen-rich supergiant massive stars. Their first electromagnetic signature is the shock breakout (SBO), a short-lived phenomenon that can last for hours to days depending on the density at shock emergence. We present 26 rising optical light curves of SN II candidates discovered shortly after explosion by the High Cadence Transient Survey and derive physical parameters based on hydrodynamical models using a Bayesian approach. We observe a steep rise of a few days in 24 out of 26 SN II candidates, indicating the systematic detection of SBOs in a dense circumstellar matter consistent with a mass loss rate of Ṁ> 10−4M⊙ yr−1 or a dense atmosphere. This implies that the characteristic hour-timescale signature of stellar envelope SBOs may be rare in nature and could be delayed into longer-lived circumstellar material SBOs in most SNe II.
UR - http://www.scopus.com/inward/record.url?scp=85058706062&partnerID=8YFLogxK
U2 - 10.1038/s41550-018-0563-4
DO - 10.1038/s41550-018-0563-4
M3 - Journal article
AN - SCOPUS:85058706062
VL - 2
SP - 808
EP - 818
JO - Nature Astronomy
JF - Nature Astronomy
SN - 2397-3366
IS - 10
ER -
ID: 224647734