SN 2018agk: a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2)

Qinan Wang; Armin Rest; Yossef Zenati; Ryan Ridden-Harper; Georgios Dimitriadis; Gautham Narayan; V. Ashley Villar; Mark R. Magee; Ryan J. Foley; Edward J. Shaya; Peter Garnavich; Lifan Wang; Lei Hu; Attila Bódi; Patrick Armstrong; Katie Auchettl; Thomas Barclay; Geert Barentsen; Zsófia Bognár; Joseph Brimacombe; Joanna Bulger; Jamison Burke; Peter Challis; Kenneth Chambers; David A. Coulter; Géza Csörnyei; Borbála Cseh; Maxime Deckers; Jessie L. Dotson; Lluís Galbany; Santiago González-Gaitán; Mariusz Gromadzki; Michael Gully-Santiago; Ottó Hanyecz; Christina Hedges; Daichi Hiramatsu; Griffin Hosseinzadeh; D. Andrew Howell; Steve B. Howell; Mark E. Huber; Saurabh W. Jha; David O. Jones; Réka Könyves-Tóth; Csilla Kalup; Charles D. Kilpatrick; Levente Kriskovics; Wenxiong Li; Thomas B. Lowe; Steven Margheim; Curtis McCully; Ayan Mitra; Jose A. Muñoz; Matt Nicholl; Jakob Nordin; András Pál; Yen-Chen Pan; Anthony L. Piro; Sofia Rest; João Rino-Silvestre; César Rojas-Bravo; Krisztián Sárneczky; Matthew R. Siebert; Stephen J. Smartt; Ken Smith; Ádám Sódor; Maximilian D. Stritzinger; Róbert Szabó; Róbert Szakáts; Brad E. Tucker; József Vinkó; Xiaofeng Wang; J. Craig Wheeler; David R. Young; Alfredo Zenteno; KaiCheng Zhang; Gabriella Zsidi

doi:10.3847/1538-4357/ac2c84

SN 2018agk: a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2)

Qinan Wang, Armin Rest, Yossef Zenati, Ryan Ridden-Harper, Georgios Dimitriadis, Gautham Narayan, V. Ashley Villar, Mark R. Magee, Ryan J. Foley, Edward J. Shaya, Peter Garnavich, Lifan Wang, Lei Hu, Attila Bódi, Patrick Armstrong, Katie Auchettl, Thomas Barclay, Geert Barentsen, Zsófia Bognár, Joseph BrimacombeJoanna Bulger, Jamison Burke, Peter Challis, Kenneth Chambers, David A. Coulter, Géza Csörnyei, Borbála Cseh, Maxime Deckers, Jessie L. Dotson, Lluís Galbany, Santiago González-Gaitán, Mariusz Gromadzki, Michael Gully-Santiago, Ottó Hanyecz, Christina Hedges, Daichi Hiramatsu, Griffin Hosseinzadeh, D. Andrew Howell, Steve B. Howell, Mark E. Huber, Saurabh W. Jha, David O. Jones, Réka Könyves-Tóth, Csilla Kalup, Charles D. Kilpatrick, Levente Kriskovics, Wenxiong Li, Thomas B. Lowe, Steven Margheim, Curtis McCully, Ayan Mitra, Jose A. Muñoz, Matt Nicholl, Jakob Nordin, András Pál, Yen-Chen Pan, Anthony L. Piro, Sofia Rest, João Rino-Silvestre, César Rojas-Bravo, Krisztián Sárneczky, Matthew R. Siebert, Stephen J. Smartt, Ken Smith, Ádám Sódor, Maximilian D. Stritzinger, Róbert Szabó, Róbert Szakáts, Brad E. Tucker, József Vinkó, Xiaofeng Wang, J. Craig Wheeler, David R. Young, Alfredo Zenteno, KaiCheng Zhang, Gabriella Zsidi

Physics and Astronomy

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Abstract

We present the 30 minutes cadence Kepler/K2 light curve of the Type Ia supernova (SN Ia) SN 2018agk, covering approximately one week before explosion, the full rise phase, and the decline until 40 days after peak. We additionally present ground-based observations in multiple bands within the same time range, including the 1 day cadence DECam observations within the first ~5 days after the first light. The Kepler early light curve is fully consistent with a single power-law rise, without evidence of any bump feature. We compare SN 2018agk with a sample of other SNe Ia without early excess flux from the literature. We find that SNe Ia without excess flux have slowly evolving early colors in a narrow range (g - i ≍ -0.20 ± 0.20 mag) within the first ~10 days. On the other hand, among SNe Ia detected with excess, SN 2017cbv and SN 2018oh tend to be bluer, while iPTF16abc's evolution is similar to normal SNe Ia without excess in g - i. We further compare the Kepler light curve of SN 2018agk with companion-interaction models, and rule out the existence of a typical nondegenerate companion undergoing Roche lobe overflow at viewing angles smaller than 45°....

Original language	English
Article number	167
Number of pages	22
Journal	The Astrophysical Journal
Volume	923
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ac2c84
Publication status	Published - 20 Dec 2021

Keywords

Type Ia supernovae
Supernovae
Time domain astronomy

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Wang, Q., Rest, A., Zenati, Y., Ridden-Harper, R., Dimitriadis, G., Narayan, G., Villar, V. A., Magee, M. R., Foley, R. J., Shaya, E. J., Garnavich, P., Wang, L., Hu, L., Bódi, A., Armstrong, P., Auchettl, K., Barclay, T., Barentsen, G., Bognár, Z., ... Zsidi, G. (2021). SN 2018agk: a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2). The Astrophysical Journal, 923(2), Article 167. https://doi.org/10.3847/1538-4357/ac2c84

@article{3ef80861eb094bfc8af4a92f74324ed2,

title = "SN 2018agk: a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2)",

abstract = "We present the 30 minutes cadence Kepler/K2 light curve of the Type Ia supernova (SN Ia) SN 2018agk, covering approximately one week before explosion, the full rise phase, and the decline until 40 days after peak. We additionally present ground-based observations in multiple bands within the same time range, including the 1 day cadence DECam observations within the first ~5 days after the first light. The Kepler early light curve is fully consistent with a single power-law rise, without evidence of any bump feature. We compare SN 2018agk with a sample of other SNe Ia without early excess flux from the literature. We find that SNe Ia without excess flux have slowly evolving early colors in a narrow range (g - i ≍ -0.20 ± 0.20 mag) within the first ~10 days. On the other hand, among SNe Ia detected with excess, SN 2017cbv and SN 2018oh tend to be bluer, while iPTF16abc's evolution is similar to normal SNe Ia without excess in g - i. We further compare the Kepler light curve of SN 2018agk with companion-interaction models, and rule out the existence of a typical nondegenerate companion undergoing Roche lobe overflow at viewing angles smaller than 45°....",

keywords = "Type Ia supernovae, Supernovae, Time domain astronomy",

author = "Qinan Wang and Armin Rest and Yossef Zenati and Ryan Ridden-Harper and Georgios Dimitriadis and Gautham Narayan and Villar, {V. Ashley} and Magee, {Mark R.} and Foley, {Ryan J.} and Shaya, {Edward J.} and Peter Garnavich and Lifan Wang and Lei Hu and Attila B{\'o}di and Patrick Armstrong and Katie Auchettl and Thomas Barclay and Geert Barentsen and Zs{\'o}fia Bogn{\'a}r and Joseph Brimacombe and Joanna Bulger and Jamison Burke and Peter Challis and Kenneth Chambers and Coulter, {David A.} and G{\'e}za Cs{\"o}rnyei and Borb{\'a}la Cseh and Maxime Deckers and Dotson, {Jessie L.} and Llu{\'i}s Galbany and Santiago Gonz{\'a}lez-Gait{\'a}n and Mariusz Gromadzki and Michael Gully-Santiago and Ott{\'o} Hanyecz and Christina Hedges and Daichi Hiramatsu and Griffin Hosseinzadeh and Howell, {D. Andrew} and Howell, {Steve B.} and Huber, {Mark E.} and Jha, {Saurabh W.} and Jones, {David O.} and R{\'e}ka K{\"o}nyves-T{\'o}th and Csilla Kalup and Kilpatrick, {Charles D.} and Levente Kriskovics and Wenxiong Li and Lowe, {Thomas B.} and Steven Margheim and Curtis McCully and Ayan Mitra and Mu{\~n}oz, {Jose A.} and Matt Nicholl and Jakob Nordin and Andr{\'a}s P{\'a}l and Yen-Chen Pan and Piro, {Anthony L.} and Sofia Rest and Jo{\~a}o Rino-Silvestre and C{\'e}sar Rojas-Bravo and Kriszti{\'a}n S{\'a}rneczky and Siebert, {Matthew R.} and Smartt, {Stephen J.} and Ken Smith and {\'A}d{\'a}m S{\'o}dor and Stritzinger, {Maximilian D.} and R{\'o}bert Szab{\'o} and R{\'o}bert Szak{\'a}ts and Tucker, {Brad E.} and J{\'o}zsef Vink{\'o} and Xiaofeng Wang and Wheeler, {J. Craig} and Young, {David R.} and Alfredo Zenteno and KaiCheng Zhang and Gabriella Zsidi",

year = "2021",

month = dec,

day = "20",

doi = "10.3847/1538-4357/ac2c84",

language = "English",

volume = "923",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "Institute of Physics Publishing Ltd",

number = "2",

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Wang, Q, Rest, A, Zenati, Y, Ridden-Harper, R, Dimitriadis, G, Narayan, G, Villar, VA, Magee, MR, Foley, RJ, Shaya, EJ, Garnavich, P, Wang, L, Hu, L, Bódi, A, Armstrong, P, Auchettl, K, Barclay, T, Barentsen, G, Bognár, Z, Brimacombe, J, Bulger, J, Burke, J, Challis, P, Chambers, K, Coulter, DA, Csörnyei, G, Cseh, B, Deckers, M, Dotson, JL, Galbany, L, González-Gaitán, S, Gromadzki, M, Gully-Santiago, M, Hanyecz, O, Hedges, C, Hiramatsu, D, Hosseinzadeh, G, Howell, DA, Howell, SB, Huber, ME, Jha, SW, Jones, DO, Könyves-Tóth, R, Kalup, C, Kilpatrick, CD, Kriskovics, L, Li, W, Lowe, TB, Margheim, S, McCully, C, Mitra, A, Muñoz, JA, Nicholl, M, Nordin, J, Pál, A, Pan, Y-C, Piro, AL, Rest, S, Rino-Silvestre, J, Rojas-Bravo, C, Sárneczky, K, Siebert, MR, Smartt, SJ, Smith, K, Sódor, Á, Stritzinger, MD, Szabó, R, Szakáts, R, Tucker, BE, Vinkó, J, Wang, X, Wheeler, JC, Young, DR, Zenteno, A, Zhang, K & Zsidi, G 2021, 'SN 2018agk: a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2)', The Astrophysical Journal, vol. 923, no. 2, 167. https://doi.org/10.3847/1538-4357/ac2c84

TY - JOUR

T1 - SN 2018agk

T2 - a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2)

AU - Wang, Qinan

AU - Rest, Armin

AU - Zenati, Yossef

AU - Ridden-Harper, Ryan

AU - Dimitriadis, Georgios

AU - Narayan, Gautham

AU - Villar, V. Ashley

AU - Magee, Mark R.

AU - Foley, Ryan J.

AU - Shaya, Edward J.

AU - Garnavich, Peter

AU - Wang, Lifan

AU - Hu, Lei

AU - Bódi, Attila

AU - Armstrong, Patrick

AU - Auchettl, Katie

AU - Barclay, Thomas

AU - Barentsen, Geert

AU - Bognár, Zsófia

AU - Brimacombe, Joseph

AU - Bulger, Joanna

AU - Burke, Jamison

AU - Challis, Peter

AU - Chambers, Kenneth

AU - Coulter, David A.

AU - Csörnyei, Géza

AU - Cseh, Borbála

AU - Deckers, Maxime

AU - Dotson, Jessie L.

AU - Galbany, Lluís

AU - González-Gaitán, Santiago

AU - Gromadzki, Mariusz

AU - Gully-Santiago, Michael

AU - Hanyecz, Ottó

AU - Hedges, Christina

AU - Hiramatsu, Daichi

AU - Hosseinzadeh, Griffin

AU - Howell, D. Andrew

AU - Howell, Steve B.

AU - Huber, Mark E.

AU - Jha, Saurabh W.

AU - Jones, David O.

AU - Könyves-Tóth, Réka

AU - Kalup, Csilla

AU - Kilpatrick, Charles D.

AU - Kriskovics, Levente

AU - Li, Wenxiong

AU - Lowe, Thomas B.

AU - Margheim, Steven

AU - McCully, Curtis

AU - Mitra, Ayan

AU - Muñoz, Jose A.

AU - Nicholl, Matt

AU - Nordin, Jakob

AU - Pál, András

AU - Pan, Yen-Chen

AU - Piro, Anthony L.

AU - Rest, Sofia

AU - Rino-Silvestre, João

AU - Rojas-Bravo, César

AU - Sárneczky, Krisztián

AU - Siebert, Matthew R.

AU - Smartt, Stephen J.

AU - Smith, Ken

AU - Sódor, Ádám

AU - Stritzinger, Maximilian D.

AU - Szabó, Róbert

AU - Szakáts, Róbert

AU - Tucker, Brad E.

AU - Vinkó, József

AU - Wang, Xiaofeng

AU - Wheeler, J. Craig

AU - Young, David R.

AU - Zenteno, Alfredo

AU - Zhang, KaiCheng

AU - Zsidi, Gabriella

PY - 2021/12/20

Y1 - 2021/12/20

N2 - We present the 30 minutes cadence Kepler/K2 light curve of the Type Ia supernova (SN Ia) SN 2018agk, covering approximately one week before explosion, the full rise phase, and the decline until 40 days after peak. We additionally present ground-based observations in multiple bands within the same time range, including the 1 day cadence DECam observations within the first ~5 days after the first light. The Kepler early light curve is fully consistent with a single power-law rise, without evidence of any bump feature. We compare SN 2018agk with a sample of other SNe Ia without early excess flux from the literature. We find that SNe Ia without excess flux have slowly evolving early colors in a narrow range (g - i ≍ -0.20 ± 0.20 mag) within the first ~10 days. On the other hand, among SNe Ia detected with excess, SN 2017cbv and SN 2018oh tend to be bluer, while iPTF16abc's evolution is similar to normal SNe Ia without excess in g - i. We further compare the Kepler light curve of SN 2018agk with companion-interaction models, and rule out the existence of a typical nondegenerate companion undergoing Roche lobe overflow at viewing angles smaller than 45°....

AB - We present the 30 minutes cadence Kepler/K2 light curve of the Type Ia supernova (SN Ia) SN 2018agk, covering approximately one week before explosion, the full rise phase, and the decline until 40 days after peak. We additionally present ground-based observations in multiple bands within the same time range, including the 1 day cadence DECam observations within the first ~5 days after the first light. The Kepler early light curve is fully consistent with a single power-law rise, without evidence of any bump feature. We compare SN 2018agk with a sample of other SNe Ia without early excess flux from the literature. We find that SNe Ia without excess flux have slowly evolving early colors in a narrow range (g - i ≍ -0.20 ± 0.20 mag) within the first ~10 days. On the other hand, among SNe Ia detected with excess, SN 2017cbv and SN 2018oh tend to be bluer, while iPTF16abc's evolution is similar to normal SNe Ia without excess in g - i. We further compare the Kepler light curve of SN 2018agk with companion-interaction models, and rule out the existence of a typical nondegenerate companion undergoing Roche lobe overflow at viewing angles smaller than 45°....

KW - Type Ia supernovae

KW - Supernovae

KW - Time domain astronomy

UR - https://arxiv.org/pdf/2108.13607.pdf

U2 - 10.3847/1538-4357/ac2c84

DO - 10.3847/1538-4357/ac2c84

M3 - Article

SN - 0004-637X

VL - 923

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

M1 - 167

ER -

SN 2018agk: a prototypical type Ia supernova with a smooth power-law rise in Kepler (K2)

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