The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor

Schuyler D. Van Dyk; Weikang Zheng; Justyn R. Maund; Thomas G. Brink; Sundar Srinivasan; Jennifer E. Andrews; Nathan Smith; Douglas C. Leonard; Viktoriya Morozova; Alexei V. Filippenko; Brody Conner; Dan Milisavljevic; Thomas De Jaeger; Knox S. Long; Howard Isaacson; Ian J.M. Crossfield; Molly R. Kosiarek; Andrew W. Howard; Ori D. Fox; Patrick L. Kelly; Anthony L. Piro; Stuart P. Littlefair; Vik S. Dhillon; Richard Wilson; Timothy Butterley; Sameen Yunus; Sanyum Channa; Benjamin T. Jeffers; Edward Falcon; Timothy W. Ross; Julia C. Hestenes; Samantha M. Stegman; Keto Zhang; Sahana Kumar

doi:10.3847/1538-4357/ab1136

The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor

Schuyler D. Van Dyk, Weikang Zheng, Justyn R. Maund, Thomas G. Brink, Sundar Srinivasan, Jennifer E. Andrews, Nathan Smith, Douglas C. Leonard, Viktoriya Morozova, Alexei V. Filippenko, Brody Conner, Dan Milisavljevic, Thomas De Jaeger, Knox S. Long, Howard Isaacson, Ian J.M. Crossfield, Molly R. Kosiarek, Andrew W. Howard, Ori D. Fox, Patrick L. KellyAnthony L. Piro, Stuart P. Littlefair, Vik S. Dhillon, Richard Wilson, Timothy Butterley, Sameen Yunus, Sanyum Channa, Benjamin T. Jeffers, Edward Falcon, Timothy W. Ross, Julia C. Hestenes, Samantha M. Stegman, Keto Zhang, Sahana Kumar

Physics

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Abstract

We present extensive optical photometric and spectroscopic observations, from 4 to 482 days after explosion, of the Type II-plateau (II-P) supernova (SN) 2017eaw in NGC 6946. SN 2017eaw is a normal SN II-P intermediate in properties between, for example, SN 1999em and SN 2012aw and the more luminous SN 2004et, also in NGC 6946. We have determined that the extinction to SN 2017eaw is primarily due to the Galactic foreground and that the SN site metallicity is likely subsolar. We have also independently confirmed a tip-of-the-red-giant-branch (TRGB) distance to NGC 6946 of 7.73 ±; 0.78 Mpc. The distances to the SN that we have also estimated via both the standardized candle method and expanding photosphere method corroborate the TRGB distance. We confirm the SN progenitor identity in pre-explosion archival Hubble Space Telescope (HST) and Spitzer Space Telescope images, via imaging of the SN through our HST Target of Opportunity program. Detailed modeling of the progenitor's spectral energy distribution indicates that the star was a dusty, luminous red supergiant consistent with an initial mass of ∼15 M _o.

Original language	English (US)
Article number	136
Journal	Astrophysical Journal
Volume	875
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ab1136
State	Published - Apr 20 2019

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Van Dyk, S. D., Zheng, W., Maund, J. R., Brink, T. G., Srinivasan, S., Andrews, J. E., Smith, N., Leonard, D. C., Morozova, V., Filippenko, A. V., Conner, B., Milisavljevic, D., De Jaeger, T., Long, K. S., Isaacson, H., Crossfield, I. J. M., Kosiarek, M. R., Howard, A. W., Fox, O. D., ... Kumar, S. (2019). The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor. Astrophysical Journal, 875(2), Article 136. https://doi.org/10.3847/1538-4357/ab1136

@article{acfb185e421e449f9613a61246872709,

title = "The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor",

abstract = "We present extensive optical photometric and spectroscopic observations, from 4 to 482 days after explosion, of the Type II-plateau (II-P) supernova (SN) 2017eaw in NGC 6946. SN 2017eaw is a normal SN II-P intermediate in properties between, for example, SN 1999em and SN 2012aw and the more luminous SN 2004et, also in NGC 6946. We have determined that the extinction to SN 2017eaw is primarily due to the Galactic foreground and that the SN site metallicity is likely subsolar. We have also independently confirmed a tip-of-the-red-giant-branch (TRGB) distance to NGC 6946 of 7.73 ±; 0.78 Mpc. The distances to the SN that we have also estimated via both the standardized candle method and expanding photosphere method corroborate the TRGB distance. We confirm the SN progenitor identity in pre-explosion archival Hubble Space Telescope (HST) and Spitzer Space Telescope images, via imaging of the SN through our HST Target of Opportunity program. Detailed modeling of the progenitor's spectral energy distribution indicates that the star was a dusty, luminous red supergiant consistent with an initial mass of ∼15 M o.",

author = "{Van Dyk}, {Schuyler D.} and Weikang Zheng and Maund, {Justyn R.} and Brink, {Thomas G.} and Sundar Srinivasan and Andrews, {Jennifer E.} and Nathan Smith and Leonard, {Douglas C.} and Viktoriya Morozova and Filippenko, {Alexei V.} and Brody Conner and Dan Milisavljevic and {De Jaeger}, Thomas and Long, {Knox S.} and Howard Isaacson and Crossfield, {Ian J.M.} and Kosiarek, {Molly R.} and Howard, {Andrew W.} and Fox, {Ori D.} and Kelly, {Patrick L.} and Piro, {Anthony L.} and Littlefair, {Stuart P.} and Dhillon, {Vik S.} and Richard Wilson and Timothy Butterley and Sameen Yunus and Sanyum Channa and Jeffers, {Benjamin T.} and Edward Falcon and Ross, {Timothy W.} and Hestenes, {Julia C.} and Stegman, {Samantha M.} and Keto Zhang and Sahana Kumar",

year = "2019",

month = apr,

day = "20",

doi = "10.3847/1538-4357/ab1136",

language = "English (US)",

volume = "875",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "2",

}

Van Dyk, SD, Zheng, W, Maund, JR, Brink, TG, Srinivasan, S, Andrews, JE, Smith, N, Leonard, DC, Morozova, V, Filippenko, AV, Conner, B, Milisavljevic, D, De Jaeger, T, Long, KS, Isaacson, H, Crossfield, IJM, Kosiarek, MR, Howard, AW, Fox, OD, Kelly, PL, Piro, AL, Littlefair, SP, Dhillon, VS, Wilson, R, Butterley, T, Yunus, S, Channa, S, Jeffers, BT, Falcon, E, Ross, TW, Hestenes, JC, Stegman, SM, Zhang, K & Kumar, S 2019, 'The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor', Astrophysical Journal, vol. 875, no. 2, 136. https://doi.org/10.3847/1538-4357/ab1136

TY - JOUR

T1 - The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor

AU - Van Dyk, Schuyler D.

AU - Zheng, Weikang

AU - Maund, Justyn R.

AU - Brink, Thomas G.

AU - Srinivasan, Sundar

AU - Andrews, Jennifer E.

AU - Smith, Nathan

AU - Leonard, Douglas C.

AU - Morozova, Viktoriya

AU - Filippenko, Alexei V.

AU - Conner, Brody

AU - Milisavljevic, Dan

AU - De Jaeger, Thomas

AU - Long, Knox S.

AU - Isaacson, Howard

AU - Crossfield, Ian J.M.

AU - Kosiarek, Molly R.

AU - Howard, Andrew W.

AU - Fox, Ori D.

AU - Kelly, Patrick L.

AU - Piro, Anthony L.

AU - Littlefair, Stuart P.

AU - Dhillon, Vik S.

AU - Wilson, Richard

AU - Butterley, Timothy

AU - Yunus, Sameen

AU - Channa, Sanyum

AU - Jeffers, Benjamin T.

AU - Falcon, Edward

AU - Ross, Timothy W.

AU - Hestenes, Julia C.

AU - Stegman, Samantha M.

AU - Zhang, Keto

AU - Kumar, Sahana

PY - 2019/4/20

Y1 - 2019/4/20

N2 - We present extensive optical photometric and spectroscopic observations, from 4 to 482 days after explosion, of the Type II-plateau (II-P) supernova (SN) 2017eaw in NGC 6946. SN 2017eaw is a normal SN II-P intermediate in properties between, for example, SN 1999em and SN 2012aw and the more luminous SN 2004et, also in NGC 6946. We have determined that the extinction to SN 2017eaw is primarily due to the Galactic foreground and that the SN site metallicity is likely subsolar. We have also independently confirmed a tip-of-the-red-giant-branch (TRGB) distance to NGC 6946 of 7.73 ±; 0.78 Mpc. The distances to the SN that we have also estimated via both the standardized candle method and expanding photosphere method corroborate the TRGB distance. We confirm the SN progenitor identity in pre-explosion archival Hubble Space Telescope (HST) and Spitzer Space Telescope images, via imaging of the SN through our HST Target of Opportunity program. Detailed modeling of the progenitor's spectral energy distribution indicates that the star was a dusty, luminous red supergiant consistent with an initial mass of ∼15 M o.

AB - We present extensive optical photometric and spectroscopic observations, from 4 to 482 days after explosion, of the Type II-plateau (II-P) supernova (SN) 2017eaw in NGC 6946. SN 2017eaw is a normal SN II-P intermediate in properties between, for example, SN 1999em and SN 2012aw and the more luminous SN 2004et, also in NGC 6946. We have determined that the extinction to SN 2017eaw is primarily due to the Galactic foreground and that the SN site metallicity is likely subsolar. We have also independently confirmed a tip-of-the-red-giant-branch (TRGB) distance to NGC 6946 of 7.73 ±; 0.78 Mpc. The distances to the SN that we have also estimated via both the standardized candle method and expanding photosphere method corroborate the TRGB distance. We confirm the SN progenitor identity in pre-explosion archival Hubble Space Telescope (HST) and Spitzer Space Telescope images, via imaging of the SN through our HST Target of Opportunity program. Detailed modeling of the progenitor's spectral energy distribution indicates that the star was a dusty, luminous red supergiant consistent with an initial mass of ∼15 M o.

UR - http://www.scopus.com/inward/record.url?scp=85067196730&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85067196730&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/ab1136

DO - 10.3847/1538-4357/ab1136

M3 - Article

AN - SCOPUS:85067196730

SN - 0004-637X

VL - 875

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 136

ER -

The Type II-plateau Supernova 2017eaw in NGC 6946 and Its Red Supergiant Progenitor

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