Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy

Sagi Ben-Ami; Avishay Gal-Yam; Alexei V. Filippenko; Paolo A. Mazzali; Maryam Modjaz; Ofer Yaron; Iair Arcavi; S. Bradley Cenko; Assaf Horesh; D. Andrew Howell; Melissa L. Graham; J. Chuck Horst; Myunshin Im; Yiseul Jeon; Shrinivas R. Kulkarni; Douglas C. Leonard; Daniel Perley; Elena Pian; David J. Sand; Mark Sullivan; Juliette C. Becker; David Bersier; Joshua S. Bloom; Michael Bottom; Peter J. Brown; Kelsey I. Clubb; Ben Dilday; Richard C. Dixon; Aryeh L. Fortinsky; Derek B. Fox; Luis A. Gonzalez; Avet Harutyunyan; Mansi M. Kasliwal; Weidong Li; Matthew A. Malkan; Ilan Manulis; Thomas Matheson; Nicholas A. Moskovitz; Philip S. Muirhead; Peter E. Nugent; Eran O. Ofek; Robert M. Quimby; Joseph W. Richards; Nathaniel R. Ross; Kinchen J. Searcy; Jeffrey M. Silverman; Nathan Smith; Andrew Vanderburg; Emma S. Walker

doi:10.1088/2041-8205/760/2/L33

Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy

Sagi Ben-Ami, Avishay Gal-Yam, Alexei V. Filippenko, Paolo A. Mazzali, Maryam Modjaz, Ofer Yaron, Iair Arcavi, S. Bradley Cenko, Assaf Horesh, D. Andrew Howell, Melissa L. Graham, J. Chuck Horst, Myunshin Im, Yiseul Jeon, Shrinivas R. Kulkarni, Douglas C. Leonard, Daniel Perley, Elena Pian, David J. Sand, Mark SullivanJuliette C. Becker, David Bersier, Joshua S. Bloom, Michael Bottom, Peter J. Brown, Kelsey I. Clubb, Ben Dilday, Richard C. Dixon, Aryeh L. Fortinsky, Derek B. Fox, Luis A. Gonzalez, Avet Harutyunyan, Mansi M. Kasliwal, Weidong Li, Matthew A. Malkan, Ilan Manulis, Thomas Matheson, Nicholas A. Moskovitz, Philip S. Muirhead, Peter E. Nugent, Eran O. Ofek, Robert M. Quimby, Joseph W. Richards, Nathaniel R. Ross, Kinchen J. Searcy, Jeffrey M. Silverman, Nathan Smith, Andrew Vanderburg, Emma S. Walker

Astronomy

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

We present the discovery and extensive early-time observations of the Type Ic supernova (SN) PTF12gzk. Our light curves show a rise of 0.8mag within 2.5hr. Power-law fits (f(t) (t - t ₀)ⁿ) to these data constrain the explosion date to within one day. We cannot rule out a quadratic fireball model, but higher values of n are possible as well for larger areas in the fit parameter space. Our bolometric light curve and a dense spectral sequence are used to estimate the physical parameters of the exploding star and of the explosion. We show that the photometric evolution of PTF12gzk is slower than that of most SNe Ic. The high ejecta expansion velocities we measure (∼30, 000kms^-1 derived from line minima fourdays after explosion) are similar to the observed velocities of broad-lined SNe Ic associated with gamma-ray bursts (GRBs) rather than to normal SN Ic velocities. Yet, this SN does not show the persistent broad lines that are typical of broad-lined SNe Ic. The host-galaxy characteristics are also consistent with GRB-SN hosts, and not with normal SN Ic hosts. By comparison with the spectroscopically similar SN 2004aw, we suggest that the observed properties of PTF12gzk indicate an initial progenitor mass of 25-35M _⊙ and a large ((5-10) × 10 ⁵¹erg) kinetic energy, the later being close to the regime of GRB-SN properties.

Original language	English (US)
Article number	L33
Journal	Astrophysical Journal Letters
Volume	760
Issue number	2
DOIs	https://doi.org/10.1088/2041-8205/760/2/L33
State	Published - Dec 1 2012

Keywords

supernovae: general
supernovae: individual (PTF12gzk)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/2041-8205/760/2/L33

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Ben-Ami, S., Gal-Yam, A., Filippenko, A. V., Mazzali, P. A., Modjaz, M., Yaron, O., Arcavi, I., Cenko, S. B., Horesh, A., Howell, D. A., Graham, M. L., Horst, J. C., Im, M., Jeon, Y., Kulkarni, S. R., Leonard, D. C., Perley, D., Pian, E., Sand, D. J., ... Walker, E. S. (2012). Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy. Astrophysical Journal Letters, 760(2), Article L33. https://doi.org/10.1088/2041-8205/760/2/L33

Ben-Ami, S, Gal-Yam, A, Filippenko, AV, Mazzali, PA, Modjaz, M, Yaron, O, Arcavi, I, Cenko, SB, Horesh, A, Howell, DA, Graham, ML, Horst, JC, Im, M, Jeon, Y, Kulkarni, SR, Leonard, DC, Perley, D, Pian, E, Sand, DJ, Sullivan, M, Becker, JC, Bersier, D, Bloom, JS, Bottom, M, Brown, PJ, Clubb, KI, Dilday, B, Dixon, RC, Fortinsky, AL, Fox, DB, Gonzalez, LA, Harutyunyan, A, Kasliwal, MM, Li, W, Malkan, MA, Manulis, I, Matheson, T, Moskovitz, NA, Muirhead, PS, Nugent, PE, Ofek, EO, Quimby, RM, Richards, JW, Ross, NR, Searcy, KJ, Silverman, JM, Smith, N, Vanderburg, A & Walker, ES 2012, 'Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy', Astrophysical Journal Letters, vol. 760, no. 2, L33. https://doi.org/10.1088/2041-8205/760/2/L33

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title = "Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy",

abstract = "We present the discovery and extensive early-time observations of the Type Ic supernova (SN) PTF12gzk. Our light curves show a rise of 0.8mag within 2.5hr. Power-law fits (f(t) (t - t 0)n) to these data constrain the explosion date to within one day. We cannot rule out a quadratic fireball model, but higher values of n are possible as well for larger areas in the fit parameter space. Our bolometric light curve and a dense spectral sequence are used to estimate the physical parameters of the exploding star and of the explosion. We show that the photometric evolution of PTF12gzk is slower than that of most SNe Ic. The high ejecta expansion velocities we measure (∼30, 000kms-1 derived from line minima fourdays after explosion) are similar to the observed velocities of broad-lined SNe Ic associated with gamma-ray bursts (GRBs) rather than to normal SN Ic velocities. Yet, this SN does not show the persistent broad lines that are typical of broad-lined SNe Ic. The host-galaxy characteristics are also consistent with GRB-SN hosts, and not with normal SN Ic hosts. By comparison with the spectroscopically similar SN 2004aw, we suggest that the observed properties of PTF12gzk indicate an initial progenitor mass of 25-35M ⊙ and a large ((5-10) × 10 51erg) kinetic energy, the later being close to the regime of GRB-SN properties.",

keywords = "supernovae: general, supernovae: individual (PTF12gzk)",

author = "Sagi Ben-Ami and Avishay Gal-Yam and Filippenko, {Alexei V.} and Mazzali, {Paolo A.} and Maryam Modjaz and Ofer Yaron and Iair Arcavi and Cenko, {S. Bradley} and Assaf Horesh and Howell, {D. Andrew} and Graham, {Melissa L.} and Horst, {J. Chuck} and Myunshin Im and Yiseul Jeon and Kulkarni, {Shrinivas R.} and Leonard, {Douglas C.} and Daniel Perley and Elena Pian and Sand, {David J.} and Mark Sullivan and Becker, {Juliette C.} and David Bersier and Bloom, {Joshua S.} and Michael Bottom and Brown, {Peter J.} and Clubb, {Kelsey I.} and Ben Dilday and Dixon, {Richard C.} and Fortinsky, {Aryeh L.} and Fox, {Derek B.} and Gonzalez, {Luis A.} and Avet Harutyunyan and Kasliwal, {Mansi M.} and Weidong Li and Malkan, {Matthew A.} and Ilan Manulis and Thomas Matheson and Moskovitz, {Nicholas A.} and Muirhead, {Philip S.} and Nugent, {Peter E.} and Ofek, {Eran O.} and Quimby, {Robert M.} and Richards, {Joseph W.} and Ross, {Nathaniel R.} and Searcy, {Kinchen J.} and Silverman, {Jeffrey M.} and Nathan Smith and Andrew Vanderburg and Walker, {Emma S.}",

year = "2012",

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doi = "10.1088/2041-8205/760/2/L33",

language = "English (US)",

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journal = "Astrophysical Journal Letters",

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T1 - Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk

T2 - A massive-star explosion in a dwarf host galaxy

AU - Ben-Ami, Sagi

AU - Gal-Yam, Avishay

AU - Filippenko, Alexei V.

AU - Mazzali, Paolo A.

AU - Modjaz, Maryam

AU - Yaron, Ofer

AU - Arcavi, Iair

AU - Cenko, S. Bradley

AU - Horesh, Assaf

AU - Howell, D. Andrew

AU - Graham, Melissa L.

AU - Horst, J. Chuck

AU - Im, Myunshin

AU - Jeon, Yiseul

AU - Kulkarni, Shrinivas R.

AU - Leonard, Douglas C.

AU - Perley, Daniel

AU - Pian, Elena

AU - Sand, David J.

AU - Sullivan, Mark

AU - Becker, Juliette C.

AU - Bersier, David

AU - Bloom, Joshua S.

AU - Bottom, Michael

AU - Brown, Peter J.

AU - Clubb, Kelsey I.

AU - Dilday, Ben

AU - Dixon, Richard C.

AU - Fortinsky, Aryeh L.

AU - Fox, Derek B.

AU - Gonzalez, Luis A.

AU - Harutyunyan, Avet

AU - Kasliwal, Mansi M.

AU - Li, Weidong

AU - Malkan, Matthew A.

AU - Manulis, Ilan

AU - Matheson, Thomas

AU - Moskovitz, Nicholas A.

AU - Muirhead, Philip S.

AU - Nugent, Peter E.

AU - Ofek, Eran O.

AU - Quimby, Robert M.

AU - Richards, Joseph W.

AU - Ross, Nathaniel R.

AU - Searcy, Kinchen J.

AU - Silverman, Jeffrey M.

AU - Smith, Nathan

AU - Vanderburg, Andrew

AU - Walker, Emma S.

PY - 2012/12/1

Y1 - 2012/12/1

N2 - We present the discovery and extensive early-time observations of the Type Ic supernova (SN) PTF12gzk. Our light curves show a rise of 0.8mag within 2.5hr. Power-law fits (f(t) (t - t 0)n) to these data constrain the explosion date to within one day. We cannot rule out a quadratic fireball model, but higher values of n are possible as well for larger areas in the fit parameter space. Our bolometric light curve and a dense spectral sequence are used to estimate the physical parameters of the exploding star and of the explosion. We show that the photometric evolution of PTF12gzk is slower than that of most SNe Ic. The high ejecta expansion velocities we measure (∼30, 000kms-1 derived from line minima fourdays after explosion) are similar to the observed velocities of broad-lined SNe Ic associated with gamma-ray bursts (GRBs) rather than to normal SN Ic velocities. Yet, this SN does not show the persistent broad lines that are typical of broad-lined SNe Ic. The host-galaxy characteristics are also consistent with GRB-SN hosts, and not with normal SN Ic hosts. By comparison with the spectroscopically similar SN 2004aw, we suggest that the observed properties of PTF12gzk indicate an initial progenitor mass of 25-35M ⊙ and a large ((5-10) × 10 51erg) kinetic energy, the later being close to the regime of GRB-SN properties.

AB - We present the discovery and extensive early-time observations of the Type Ic supernova (SN) PTF12gzk. Our light curves show a rise of 0.8mag within 2.5hr. Power-law fits (f(t) (t - t 0)n) to these data constrain the explosion date to within one day. We cannot rule out a quadratic fireball model, but higher values of n are possible as well for larger areas in the fit parameter space. Our bolometric light curve and a dense spectral sequence are used to estimate the physical parameters of the exploding star and of the explosion. We show that the photometric evolution of PTF12gzk is slower than that of most SNe Ic. The high ejecta expansion velocities we measure (∼30, 000kms-1 derived from line minima fourdays after explosion) are similar to the observed velocities of broad-lined SNe Ic associated with gamma-ray bursts (GRBs) rather than to normal SN Ic velocities. Yet, this SN does not show the persistent broad lines that are typical of broad-lined SNe Ic. The host-galaxy characteristics are also consistent with GRB-SN hosts, and not with normal SN Ic hosts. By comparison with the spectroscopically similar SN 2004aw, we suggest that the observed properties of PTF12gzk indicate an initial progenitor mass of 25-35M ⊙ and a large ((5-10) × 10 51erg) kinetic energy, the later being close to the regime of GRB-SN properties.

KW - supernovae: general

KW - supernovae: individual (PTF12gzk)

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UR - http://www.scopus.com/inward/citedby.url?scp=84869199354&partnerID=8YFLogxK

U2 - 10.1088/2041-8205/760/2/L33

DO - 10.1088/2041-8205/760/2/L33

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SN - 2041-8205

VL - 760

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

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ER -

Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy

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Photometry of the Ic supernova PTF12gzk

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Discovery and early multi-wavelength measurements of the energetic type IC supernova ptf12gzk: A massive-star explosion in a dwarf host galaxy

Abstract

Keywords

ASJC Scopus subject areas

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Photometry of the Ic supernova PTF12gzk

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