Ground-based and JWST Observations of SN 2022pul. I. Unusual Signatures of Carbon, Oxygen, and Circumstellar Interaction in a Peculiar Type Ia Supernova

被引：14

作者：

Siebert, Matthew R. ^{[1
]}

Kwok, Lindsey A. ^{[2
]}

Johansson, Joel ^{[3
]}

Jha, Saurabh W. ^{[2
]}

Blondin, Stephane ^{[4
]}

Dessart, Luc ^{[5
]}

Foley, Ryan J. ^{[6
]}

Hillier, D. John ^{[7
,8
]}

Larison, Conor ^{[2
]}

Pakmor, Ruediger ^{[9
]}

Temim, Tea ^{[10
]}

Andrews, Jennifer E. ^{[11
]}

Auchettl, Katie ^{[6
,12
]}

Badenes, Carles ^{[7
,8
]}

Barna, Barnabas ^{[13
]}

Bostroem, K. Azalee ^{[14
]}

Brenner Newman, Max J. ^{[2
]}

Brink, Thomas G. ^{[15
]}

Bustamante-Rosell, Maria Jose ^{[6
]}

Camacho-Neves, Yssavo ^{[2
]}

Clocchiatti, Alejandro ^{[16
,17
]}

Coulter, David A. ^{[6
]}

Davis, Kyle W. ^{[6
]}

Deckers, Maxime ^{[18
]}

Dimitriadis, Georgios ^{[18
]}

Dong, Yize ^{[19
]}

Farah, Joseph ^{[20
,21
]}

Filippenko, Alexei V. ^{[15
]}

Floers, Andreas ^{[22
]}

Fox, Ori D. ^{[1
]}

Garnavich, Peter ^{[23
]}

Gonzalez, Estefania Padilla ^{[20
,21
]}

Graur, Or ^{[24
,25
]}

Hambsch, Franz-Josef ^{[26
,27
,28
,29
]}

Hosseinzadeh, Griffin ^{[14
]}

Howell, D. Andrew ^{[20
,21
]}

Hughes, John P. ^{[2
]}

Kerzendorf, Wolfgang E. ^{[30
,31
]}

Le Saux, Xavier K. ^{[6
]}

Maeda, Keiichi ^{[32
]}

Maguire, Kate ^{[18
]}

McCully, Curtis ^{[20
,21
]}

Mihalenko, Cassidy ^{[12
,33
]}

Newsome, Megan ^{[20
,21
]}

O'Brien, John T. ^{[30
]}

Pearson, Jeniveve ^{[14
]}

Pellegrino, Craig ^{[20
,21
]}

Pierel, Justin D. R. ^{[1
]}

Polin, Abigail ^{[34
,35
]}

Rest, Armin ^{[1
,36
]}

机构：

[1] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[2] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[3] Stockholm Univ, Albanova Univ Ctr, Oskar Klein Ctr, Dept Phys, SE-10691 Stockholm, Sweden

[4] Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France

[5] Sorbonne Univ, Inst Astrophys Paris, CNRS, 98 Bis Blvd Arago, F-75014 Paris, France

[6] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[7] Univ Pittsburgh, Dept Phys & Astron, 3941 OHaraStreet, Pittsburgh, PA 15260 USA

[8] Univ Pittsburgh, Pittsburgh Particle Phys Astrophys & Cosmol Ctr P, 3941 OHara St, Pittsburgh, PA 15260 USA

[9] Max Planck Inst Astrophys, Garching, Germany

[10] Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08540 USA

[11] Gemini Observ, NSFs NOIRLab, 670 North Aohoku Pl, Hilo, HI 96720 USA

[12] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[13] Univ Szeged, Inst Phys, Dept Expt Phys, Dom Ter 9, H-6720 Szeged, Hungary

[14] Univ Arizona, Steward Observ, 933 North Cherry Ave, Tucson, AZ 85721 USA

[15] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

[16] Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Ave Vicuna Mackenna 4860, Santiago, Chile

[17] Millennium Inst Astrophys, Nuncio Monsenor Sotero Sanz 100, Providencia, Santiago, Chile

[18] Univ Dublin, Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland

[19] Univ Calif Davis, Dept Phys & Astron, 1 Shields Ave, Davis, CA 95616 USA

[20] Las Cumbres Observ, 6740 Cortona Dr, Suite 102, Goleta, CA 93117 USA

[21] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[22] GSI Helmholtzzentrum Schwerionenforsch, Planckstr 1, D-64291 Darmstadt, Germany

[23] Univ Notre Dame, Dept Phys & Astron, Notre Dame, IN 46556 USA

[24] Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg,Burnaby Rd, Portsmouth PO1 3FX, England

[25] Amer Museum Nat Hist, Dept Astrophys, Cent Pk West & 79th St, New York, NY 10024 USA

[26] Vereniging Sterrenkunde VVS, Oostmeers 122 C, B-8000 Brugge, Belgium

[27] AAVSO, 185 Alewife Brook Pkwy,Suite 410, Cambridge, MA 02138 USA

[28] Grp Europeen Observat Stellaires GEOS, 23 Parc Levesville, F-28300 Bailleau Leveque, France

[29] Bundesdeutsche Arbeitsgemeinschaft Veranderl Ster, Munsterdamm 90, D-12169 Berlin, Germany

[30] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[31] Michigan State Univ, Dept Computat Math Sci & Engn, E Lansing, MI 48824 USA

[32] Kyoto Univ, Dept Astron, Kitashirakawa Oiwake Cho,Sakyo Ku, Kyoto 6068502, Japan

[33] ARC Ctr Excellence All Sky Astrophys 3 Dimens AST, Stromlo, Australia

[34] Observ Carnegie Inst Sci, 813 Santa Barbara St, Pasadena, CA 91101 USA

[35] CALTECH, Walter Burke Inst Theoret Phys, TAPIR, Pasadena, CA 91125 USA

[36] Johns Hopkins Univ, Dept Phys & Astron, 3400 North Charles St, Baltimore, MD 21218 USA

[37] ELKH SZTE Stellar Astrophys Res Grp, Szeged Ut,Kt 766, H-6500 Baja, Hungary

[38] Isaac Newton Grp ING, Apt Correos 321, E-38700 Santa Cruz De La Palma, Canary Islands, Spain

[39] Natl Astron Res Inst Thailand, 260 Moo 4, Chiang Mai 50180, Thailand

[40] MTA Ctr Excellence, Res Ctr Astron & Earth Sci CSFK, Konkoly Observ, Konkoly Thege Miklos Ut 15-17, H-1121 Budapest, Hungary

[41] Eotvos Lorand Univ, Inst Phys & Astron, Pazmany Peter Setany 1-A, H-1117 Budapest, Hungary

[42] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

[43] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA

[44] CSIC, Inst Space Sci ICE, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain

[45] Inst Estudis Espacials Catalunya IEEC, E-08034 Barcelona, Spain

[46] Florida State Univ, Dept Phys, 77 Chieftan Way, Tallahassee, FL 32306 USA

[47] Univ Paris Cite, Sorbonne Univ, LPNHE, CNRS,IN2P3, F-75005 Paris, France

[48] Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England

[49] Liverpool John Moores Univ, Astrophys Res Inst, Liverpool L3 5RF, England

[50] Las Campanas Observ, Carnegie Observ, Casilla 601, La Serena, Chile

来源：

ASTROPHYSICAL JOURNAL | 2024年 / 960卷 / 01期

关键词：

CHANDRASEKHAR MASS MODELS; NEAR-INFRARED SPECTRA; WEBB-SPACE-TELESCOPE; WHITE-DWARFS; THERMONUCLEAR EXPLOSION; MIDINFRARED INSTRUMENT; PROGENITOR SYSTEMS; NEBULAR SPECTRUM; PROJECT-II; EVOLUTION;

D O I：

10.3847/1538-4357/ad0975

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the more common, cosmologically useful SNe Ia. We present observations from an extensive ground- and space-based follow-up campaign to characterize SN 2022pul, a super-Chandrasekhar mass SN Ia (alternatively "03fg-like" SN), from before peak brightness to well into the nebular phase across optical to mid-infrared (MIR) wavelengths. The early rise of the light curve is atypical, exhibiting two distinct components, consistent with SN Ia ejecta interacting with dense carbon-oxygen (C/O)-rich circumstellar material (CSM). In the optical, SN 2022pul is most similar to SN 2012dn, having a low estimated peak luminosity (M B = -18.9 mag) and high photospheric velocity relative to other 03fg-like SNe. In the nebular phase, SN 2022pul adds to the increasing diversity of the 03fg-like subclass. From 168 to 336 days after peak B-band brightness, SN 2022pul exhibits asymmetric and narrow emission from [O i] lambda lambda 6300, 6364 (FWHM approximate to 2000 km s-1), strong, broad emission from [Ca ii] lambda lambda 7291, 7323 (FWHM approximate to 7300 km s-1), and a rapid Fe iii to Fe ii ionization change. Finally, we present the first ever optical-to-MIR nebular spectrum of an 03fg-like SN Ia using data from JWST. In the MIR, strong lines of neon and argon, weak emission from stable nickel, and strong thermal dust emission (with T approximate to 500 K), combined with prominent [O i] in the optical, suggest that SN 2022pul was produced by a white dwarf merger within C/O-rich CSM.

引用

页数：19

共 1 条

[1] Ground-based and JWST Observations of SN 2022pul. II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type Ia Supernova
Kwok, Lindsey A.
Siebert, Matthew R.
Johansson, Joel
Jha, Saurabh W.
Blondin, Stephane
Dessart, Luc
Foley, Ryan J.
Hillier, D. John
Larison, Conor
Pakmor, Ruediger
Temim, Tea
Andrews, Jennifer E.
Auchettl, Katie
Badenes, Carles
Barnabas, Barna
Bostroem, K. Azalee
Brenner Newman, Max J.
Brink, Thomas G.
Bustamante-Rosell, Maria Jose
Camacho-Neves, Yssavo
Clocchiatti, Alejandro
Coulter, David A.
Davis, Kyle W.
Deckers, Maxime
Dimitriadis, Georgios
Dong, Yize
Farah, Joseph
Filippenko, Alexei V.
Floers, Andreas
Fox, Ori D.
Garnavich, Peter
Padilla Gonzalez, Estefania
Graur, Or
Hambsch, Franz-Josef
Hosseinzadeh, Griffin
Howell, D. Andrew
Hughes, John P.
Kerzendorf, Wolfgang E.
Saux, Xavier K.
Maeda, Keiichi
Maguire, Kate
McCully, Curtis
Mihalenko, Cassidy
Newsome, Megan
O'Brien, John T.
Pearson, Jeniveve
Pellegrino, Craig
Pierel, Justin D. R.
Polin, Abigail
Rest, Armin
ASTROPHYSICAL JOURNAL, 2024, 966 (01)

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