Strong near-infrared carbon in the Type Ia supernova iPTF13ebh

被引：66

作者：

Hsiao, E. Y. ^{[1
,2
]}

Burns, C. R. ^{[3
]}

Contreras, C. ^{[1
,2
]}

Hoeflich, P. ^{[4
]}

Sand, D. ^{[5
]}

Marion, G. H. ^{[6
,7
]}

Phillips, M. M. ^{[2
]}

Stritzinger, M. ^{[1
]}

Gonzalez-Gaitan, S. ^{[8
,9
]}

Mason, R. E. ^{[10
]}

Folatelli, G. ^{[11
,12
]}

Parent, E. ^{[13
]}

Gall, C. ^{[1
,14
]}

Amanullah, R. ^{[15
]}

Anupama, G. C. ^{[16
]}

Arcavi, I. ^{[17
,18
]}

Banerjee, D. P. K. ^{[19
]}

Beletsky, Y. ^{[2
]}

Blanc, G. A. ^{[3
,9
]}

Bloom, J. S. ^{[20
]}

Brown, P. J. ^{[21
]}

Campillay, A. ^{[2
]}

Cao, Y. ^{[22
]}

De Cia, A. ^{[26
]}

Diamond, T. ^{[4
]}

Freedman, W. L. ^{[3
]}

Gonzalez, C. ^{[2
]}

Goobar, A. ^{[15
]}

Holmbo, S. ^{[1
]}

Howell, D. A. ^{[17
,18
]}

Johansson, J. ^{[15
]}

Kasliwal, M. M. ^{[3
]}

Kirshner, R. P. ^{[7
]}

Krisciunas, K. ^{[21
]}

Kulkarni, S. R. ^{[22
]}

Maguire, K. ^{[24
]}

Milne, P. A. ^{[25
]}

Morrell, N. ^{[2
]}

Nugent, P. E. ^{[20
,23
]}

Ofek, E. O. ^{[26
]}

Osip, D. ^{[2
]}

Palunas, P. ^{[2
]}

Perley, D. A. ^{[22
]}

Persson, S. E. ^{[3
]}

Piro, A. L. ^{[3
]}

Rabus, M. ^{[27
]}

Roth, M. ^{[2
]}

Schiefelbein, J. M. ^{[21
]}

Srivastav, S. ^{[16
]}

Sullivan, M. ^{[28
]}

机构：

[1] Aarhus Univ, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

[2] Campanas Observ, Carnegie Observ, Colina El Pino, Chile

[3] Carnegie Observ, Pasadena, CA 91101 USA

[4] Florida State Univ, Tallahassee, FL 32306 USA

[5] Texas Tech Univ, Dept Phys, Lubbock, TX 79409 USA

[6] Univ Texas Austin, Austin, TX 78712 USA

[7] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[8] Millennium Inst Astrophys, Santiago, Chile

[9] Univ Chile, Dept Astron, Santiago, Chile

[10] Northern Operat Ctr, Gemini Observ, Hilo, HI 96720 USA

[11] CCT CONICET UNLP, IALP, La Plata, Buenos Aires, Argentina

[12] Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778583, Japan

[13] Bishops Univ, Dept Phys, Sherbrooke, PQ J1M 1Z7, Canada

[14] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen, Denmark

[15] Stockholm Univ, Dept Phys, Oskar Klein Ctr, Albanova Univ Ctr, S-10691 Stockholm, Sweden

[16] Indian Inst Astrophys, Bangalore 560034, Karnataka, India

[17] Cumbres Observ Global Telescope Network, Goleta, CA 93117 USA

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

[19] Phys Res Lab, Astron & Astrophys Div, Ahmadabad 380009, Gujarat, India

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

[21] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

[22] CALTECH, Cahill Ctr Astrophys, Pasadena, CA 91125 USA

[23] Lawrence Berkeley Natl Lab, Computat Res Div, Computat Cosmol Ctr, Berkeley, CA 94611 USA

[24] European Southern Observ Astron Res Southern Hemi, D-85748 Garching, Germany

[25] Univ Arizona, Steward Observ, Tucson, AZ 85719 USA

[26] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel

[27] Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Santiago, Region Metropol, Chile

[28] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[29] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA

[30] Los Alamos Natl Lab, Space & Remote Sensing, Los Alamos, NM 87545 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2015年 / 578卷

基金：

新加坡国家研究基金会; 美国国家航空航天局; 美国国家科学基金会;

关键词：

infrared: general; supernovae: general; supernovae: individual: iPTF13ebh; PHOTOMETRY DATA RELEASE; HUBBLE-SPACE-TELESCOPE; HIGH-VELOCITY FEATURES; TIME OPTICAL-SPECTRA; WHITE-DWARF STAR; LIGHT CURVES; SN; 2014J; MAXIMUM-LIGHT; THERMONUCLEAR SUPERNOVAE; FACTORY OBSERVATIONS;

D O I：

10.1051/0004-6361/201425297

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present near-infrared (NIR) time-series spectroscopy, as well as complementary ultraviolet (UV), optical, and NIR data, of the Type Ia supernova (SN Ia) iPTF13ebh, which was discovered within two days from the estimated time of explosion. The first NIR spectrum was taken merely 2 : 3 days after explosion and may be the earliest NIR spectrum yet obtained of a SN Ia. The most striking features in the spectrum are several NIR C I lines, and the C I lambda 1.0693 mu m line is the strongest ever observed in a SN Ia. Interestingly, no strong optical C II counterparts were found, even though the optical spectroscopic time series began early and is densely cadenced. Except at the very early epochs, within a few days from the time of explosion, we show that the strong NIR C I compared to the weaker optical C II appears to be general in SNe Ia. iPTF13ebh is a fast decliner with Delta m(15)(B) = 1.79 +/- 0.01, and its absolute magnitude obeys the linear part of the width-luminosity relation. It is therefore categorized as a "transitional" event, on the fast-declining end of normal SNe Ia as opposed to subluminous/91bg-like objects. iPTF13ebh shows NIR spectroscopic properties that are distinct from both the normal and subluminous/91bg-like classes, bridging the observed characteristics of the two classes. These NIR observations suggest that composition and density of the inner core are similar to that of 91bg-like events, and that it has a deep-reaching carbon burning layer that is not observed in more slowly declining SNe Ia. There is also a substantial difference between the explosion times inferred from the early-time light curve and the velocity evolution of the Si II lambda 0.6355 mu m line, implying a long dark phase of similar to 4 days.

引用

页数：18

共 136 条

[1]

Albrecht A., 2006, ARXIV E PRINTS

[2] THE PECULIAR EXTINCTION LAW OF SN 2014J MEASURED WITH THE HUBBLE SPACE TELESCOPE [J].

Amanullah, R. ;

Goobar, A. ;

Johansson, J. ;

Banerjee, D. P. K. ;

Venkataraman, V. ;

Joshi, V. ;

Ashok, N. M. ;

Cao, Y. ;

Kasliwal, M. M. ;

Kulkarni, S. R. ;

Nugent, P. E. ;

Petrushevska, T. ;

Stanishev, V. .

ASTROPHYSICAL JOURNAL LETTERS, 2014, 788 (02)

[3] The diversity of type Ia supernovae: Evidence for systematics? [J].

Benetti, S ;

Cappellaro, E ;

Mazzali, PA ;

Turatto, M ;

Altavilla, G ;

Bufano, F ;

Elias-Rosa, N ;

Kotak, R ;

Pignata, G ;

Salvo, M ;

Stanishev, V .

ASTROPHYSICAL JOURNAL, 2005, 623 (02) :1011-1016

[4] THE SPECTROSCOPIC DIVERSITY OF TYPE Ia SUPERNOVAE [J].

Blondin, S. ;

Matheson, T. ;

Kirshner, R. P. ;

Mandel, K. S. ;

Berlind, P. ;

Calkins, M. ;

Challis, P. ;

Garnavich, P. M. ;

Jha, S. W. ;

Modjaz, M. ;

Riess, A. G. ;

Schmidt, P. .

ASTRONOMICAL JOURNAL, 2012, 143 (05)

[5] Near-Infrared K Corrections of Type Ia Supernovae and their Errors [J].

Boldt, Luis N. ;

Stritzinger, Maximilian D. ;

Burns, Chris ;

Hsiao, Eric ;

Phillips, M. M. ;

Goobar, Ariel ;

Marion, G. H. ;

Stanishev, Vallery .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2014, 126 (938) :324-337

[6] Comparative direct analysis of type Ia supernova spectra. II. Maximum light [J].

Branch, D ;

Dang, LC ;

Hall, N ;

Ketchum, W ;

Melakayil, M ;

Parrent, J ;

Troxel, MA ;

Casebeer, D ;

Jeffery, DJ ;

Baron, E .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2006, 118 (842) :560-571

[7] Comparative direct analysis of Type Ia supernova spectra. I. SN 1994D [J].

Branch, D ;

Baron, E ;

Hall, N ;

Melakayil, M ;

Parrent, J .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2005, 117 (832) :545-552

[8] Optical spectra of the type Ia supernova 1998aq [J].

Branch, D ;

Garnavich, P ;

Matheson, T ;

Baron, E ;

Thomas, RC ;

Hatano, K ;

Challis, P ;

Jha, S ;

Kirshner, RP .

ASTRONOMICAL JOURNAL, 2003, 126 (03) :1489-1498

[9] ON THE RELATIVE FREQUENCIES OF SPECTROSCOPICALLY NORMAL AND PECULIAR TYPE-IA SUPERNOVAE [J].

BRANCH, D ;

FISHER, A ;

NUGENT, P .

ASTRONOMICAL JOURNAL, 1993, 106 (06) :2383-2391

[10] Comparative direct analysis of type ia supernova spectra. III. Premaximum [J].

Branch, David ;

Troxel, M. A. ;

Jeffery, David J. ;

Hatano, Kazuhito ;

Musco, Miriam ;

Parrent, Jerod ;

Baron, E. ;

Dang, Leeann Chau ;

Casebeer, D. ;

Hall, Nicholas ;

Ketchum, Wesley .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2007, 119 (857) :709-721

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