Supernova 2010ev: A reddened high velocity gradient type Ia supernova

Claudia P. Gutiérrez, Santiago González-Gaitán, Gastón Folatelli, Giuliano Pignata, Joseph P. Anderson, Mario Hamuy, Nidia Morrell, Maximilian Stritzinger, Stefan Taubenberger, Filomena Bufano, Felipe Olivares E., Joshua B. Haislip, Daniel E. Reichart

Resultado de la investigación: Article

7 Citas (Scopus)

Resumen

Aims. We present and study the spectroscopic and photometric evolution of the type Ia supernova (SN Ia) 2010ev. Methods. We obtain and analyze multiband optical light curves and optical/near-infrared spectroscopy at low and medium resolution spanning -7 days to +300 days from the B-band maximum. Results. A photometric analysis shows that SN 2010ev is a SN Ia of normal brightness with a light-curve shape of Δm15(B) = 1.12 ± 0.02 and a stretch s = 0.94 ± 0.01 suffering significant reddening. From photometric and spectroscopic analysis, we deduce a color excess of E(B - V) = 0.25 ± 0.05 and a reddening law of Rv = 1.54 ± 0.65. Spectroscopically, SN 2010ev belongs to the broad-line SN Ia group, showing stronger than average Si II λ6355 absorption features. We also find that SN 2010ev is a high velocity gradient SN with vSi = 164 ± 7 km s-1 d-1. The photometric and spectral comparison with other supernovae shows that SN 2010ev has similar colors and velocities to SN 2002bo and SN 2002dj. The analysis of the nebular spectra indicates that the [Fe II] λ7155 and [Ni II] λ7378 lines are redshifted, as expected for a high velocity gradient supernova. All these common intrinsic and extrinsic properties of the high velocity gradient (HVG) group are different from the low velocity gradient (LVG) normal SN Ia population and suggest significant variety in SN Ia explosions.

Idioma originalEnglish
Número de artículoA5
PublicaciónAstronomy and Astrophysics
Volumen590
DOI
EstadoPublished - 28 abr 2016

Huella dactilar

supernovae
gradients
light curve
color
spectroscopic analysis
low speed
explosions
brightness
infrared spectroscopy
explosion
near infrared
analysis

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Gutiérrez, C. P., González-Gaitán, S., Folatelli, G., Pignata, G., Anderson, J. P., Hamuy, M., ... Reichart, D. E. (2016). Supernova 2010ev: A reddened high velocity gradient type Ia supernova. Astronomy and Astrophysics, 590, [A5]. https://doi.org/10.1051/0004-6361/201527228
Gutiérrez, Claudia P. ; González-Gaitán, Santiago ; Folatelli, Gastón ; Pignata, Giuliano ; Anderson, Joseph P. ; Hamuy, Mario ; Morrell, Nidia ; Stritzinger, Maximilian ; Taubenberger, Stefan ; Bufano, Filomena ; Olivares E., Felipe ; Haislip, Joshua B. ; Reichart, Daniel E. / Supernova 2010ev : A reddened high velocity gradient type Ia supernova. En: Astronomy and Astrophysics. 2016 ; Vol. 590.
@article{9f34d78a4c3f4700a3dea3ccc2947cb6,
title = "Supernova 2010ev: A reddened high velocity gradient type Ia supernova",
abstract = "Aims. We present and study the spectroscopic and photometric evolution of the type Ia supernova (SN Ia) 2010ev. Methods. We obtain and analyze multiband optical light curves and optical/near-infrared spectroscopy at low and medium resolution spanning -7 days to +300 days from the B-band maximum. Results. A photometric analysis shows that SN 2010ev is a SN Ia of normal brightness with a light-curve shape of Δm15(B) = 1.12 ± 0.02 and a stretch s = 0.94 ± 0.01 suffering significant reddening. From photometric and spectroscopic analysis, we deduce a color excess of E(B - V) = 0.25 ± 0.05 and a reddening law of Rv = 1.54 ± 0.65. Spectroscopically, SN 2010ev belongs to the broad-line SN Ia group, showing stronger than average Si II λ6355 absorption features. We also find that SN 2010ev is a high velocity gradient SN with vSi = 164 ± 7 km s-1 d-1. The photometric and spectral comparison with other supernovae shows that SN 2010ev has similar colors and velocities to SN 2002bo and SN 2002dj. The analysis of the nebular spectra indicates that the [Fe II] λ7155 and [Ni II] λ7378 lines are redshifted, as expected for a high velocity gradient supernova. All these common intrinsic and extrinsic properties of the high velocity gradient (HVG) group are different from the low velocity gradient (LVG) normal SN Ia population and suggest significant variety in SN Ia explosions.",
keywords = "supernovae: general, supernovae: individual: SN 2010ev",
author = "Guti{\'e}rrez, {Claudia P.} and Santiago Gonz{\'a}lez-Gait{\'a}n and Gast{\'o}n Folatelli and Giuliano Pignata and Anderson, {Joseph P.} and Mario Hamuy and Nidia Morrell and Maximilian Stritzinger and Stefan Taubenberger and Filomena Bufano and {Olivares E.}, Felipe and Haislip, {Joshua B.} and Reichart, {Daniel E.}",
year = "2016",
month = "4",
day = "28",
doi = "10.1051/0004-6361/201527228",
language = "English",
volume = "590",
journal = "Astronomy and Astrophysics",
issn = "0004-6361",
publisher = "EDP Sciences",

}

Gutiérrez, CP, González-Gaitán, S, Folatelli, G, Pignata, G, Anderson, JP, Hamuy, M, Morrell, N, Stritzinger, M, Taubenberger, S, Bufano, F, Olivares E., F, Haislip, JB & Reichart, DE 2016, 'Supernova 2010ev: A reddened high velocity gradient type Ia supernova', Astronomy and Astrophysics, vol. 590, A5. https://doi.org/10.1051/0004-6361/201527228

Supernova 2010ev : A reddened high velocity gradient type Ia supernova. / Gutiérrez, Claudia P.; González-Gaitán, Santiago; Folatelli, Gastón; Pignata, Giuliano; Anderson, Joseph P.; Hamuy, Mario; Morrell, Nidia; Stritzinger, Maximilian; Taubenberger, Stefan; Bufano, Filomena; Olivares E., Felipe; Haislip, Joshua B.; Reichart, Daniel E.

En: Astronomy and Astrophysics, Vol. 590, A5, 28.04.2016.

Resultado de la investigación: Article

TY - JOUR

T1 - Supernova 2010ev

T2 - A reddened high velocity gradient type Ia supernova

AU - Gutiérrez, Claudia P.

AU - González-Gaitán, Santiago

AU - Folatelli, Gastón

AU - Pignata, Giuliano

AU - Anderson, Joseph P.

AU - Hamuy, Mario

AU - Morrell, Nidia

AU - Stritzinger, Maximilian

AU - Taubenberger, Stefan

AU - Bufano, Filomena

AU - Olivares E., Felipe

AU - Haislip, Joshua B.

AU - Reichart, Daniel E.

PY - 2016/4/28

Y1 - 2016/4/28

N2 - Aims. We present and study the spectroscopic and photometric evolution of the type Ia supernova (SN Ia) 2010ev. Methods. We obtain and analyze multiband optical light curves and optical/near-infrared spectroscopy at low and medium resolution spanning -7 days to +300 days from the B-band maximum. Results. A photometric analysis shows that SN 2010ev is a SN Ia of normal brightness with a light-curve shape of Δm15(B) = 1.12 ± 0.02 and a stretch s = 0.94 ± 0.01 suffering significant reddening. From photometric and spectroscopic analysis, we deduce a color excess of E(B - V) = 0.25 ± 0.05 and a reddening law of Rv = 1.54 ± 0.65. Spectroscopically, SN 2010ev belongs to the broad-line SN Ia group, showing stronger than average Si II λ6355 absorption features. We also find that SN 2010ev is a high velocity gradient SN with vSi = 164 ± 7 km s-1 d-1. The photometric and spectral comparison with other supernovae shows that SN 2010ev has similar colors and velocities to SN 2002bo and SN 2002dj. The analysis of the nebular spectra indicates that the [Fe II] λ7155 and [Ni II] λ7378 lines are redshifted, as expected for a high velocity gradient supernova. All these common intrinsic and extrinsic properties of the high velocity gradient (HVG) group are different from the low velocity gradient (LVG) normal SN Ia population and suggest significant variety in SN Ia explosions.

AB - Aims. We present and study the spectroscopic and photometric evolution of the type Ia supernova (SN Ia) 2010ev. Methods. We obtain and analyze multiband optical light curves and optical/near-infrared spectroscopy at low and medium resolution spanning -7 days to +300 days from the B-band maximum. Results. A photometric analysis shows that SN 2010ev is a SN Ia of normal brightness with a light-curve shape of Δm15(B) = 1.12 ± 0.02 and a stretch s = 0.94 ± 0.01 suffering significant reddening. From photometric and spectroscopic analysis, we deduce a color excess of E(B - V) = 0.25 ± 0.05 and a reddening law of Rv = 1.54 ± 0.65. Spectroscopically, SN 2010ev belongs to the broad-line SN Ia group, showing stronger than average Si II λ6355 absorption features. We also find that SN 2010ev is a high velocity gradient SN with vSi = 164 ± 7 km s-1 d-1. The photometric and spectral comparison with other supernovae shows that SN 2010ev has similar colors and velocities to SN 2002bo and SN 2002dj. The analysis of the nebular spectra indicates that the [Fe II] λ7155 and [Ni II] λ7378 lines are redshifted, as expected for a high velocity gradient supernova. All these common intrinsic and extrinsic properties of the high velocity gradient (HVG) group are different from the low velocity gradient (LVG) normal SN Ia population and suggest significant variety in SN Ia explosions.

KW - supernovae: general

KW - supernovae: individual: SN 2010ev

UR - http://www.scopus.com/inward/record.url?scp=84966417112&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201527228

DO - 10.1051/0004-6361/201527228

M3 - Article

AN - SCOPUS:84966417112

VL - 590

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A5

ER -

Gutiérrez CP, González-Gaitán S, Folatelli G, Pignata G, Anderson JP, Hamuy M y otros. Supernova 2010ev: A reddened high velocity gradient type Ia supernova. Astronomy and Astrophysics. 2016 abr 28;590. A5. https://doi.org/10.1051/0004-6361/201527228