Early observations and analysis of the type Ia SN 2014J in M82

G. H. Marion, D. J. Sand, E. Y. Hsiao, D. P K Banerjee, S. Valenti, M. D. Stritzinger, J. Vinkó, V. Joshi, V. Venkataraman, N. M. Ashok, R. Amanullah, R. P. Binzel, J. J. Bochanski, G. L. Bryngelson, C. R. Burns, D. Drozdov, S. K. Fieber-Beyer, M. L. Graham, D. A. Howell, J. JohanssonR. P. Kirshner, P. A. Milne, J. Parrent, J. M. Silverman, R. J. Vervack, J. C. Wheeler

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

We present optical and near infrared (NIR) observations of the nearby Type Ia SN 2014J. Seventeen optical and 23 NIR spectra were obtained from 10 days before (-10d) to 10 days after (+10d) the time of maximum B-band brightness. The relative strengths of absorption features and their patterns of development can be compared at one day intervals throughout most of this period. Carbon is not detected in the optical spectra, but we identify C I λ1.0693 in the NIR spectra. Mg II lines with high oscillator strengths have higher initial velocities than other Mg II lines.We show that the velocity differences can be explained by differences in optical depths due to oscillator strengths. The spectra of SN 2014J show that it is a normal SN Ia, but many parameters are near the boundaries between normal and high-velocity subclasses. The velocities for O I, Mg II, Si II, S II, Ca II, and Fe II suggest that SN 2014J has a layered structure with little or no mixing. That result is consistent with the delayed detonation explosion models.We also report photometric observations, obtained from -10d to +29d, in the UBVRIJH and Ks bands. The template fitting package SNooPy is used to interpret the light curves and to derive photometric parameters. Using RV = 1.46, which is consistent with previous studies, SNooPy finds that AV = 1.80 for E (B - V)host = 1.23 ± 0.06 mag. The maximum B-band brightness of -19.19 ± 0.10 mag was reached on February 1.74 UT ± 0.13 days and the supernova has a decline parameter, Δm15, of 1.12 ± 0.02 mag.

Original languageEnglish
Article number39
JournalAstrophysical Journal
Volume798
Issue number1
DOIs
Publication statusPublished - Jan 1 2015

Fingerprint

near infrared
oscillator strengths
brightness
infrared spectra
detonation
optical thickness
optical depth
light curve
supernovae
explosions
optical spectrum
explosion
templates
intervals
analysis
carbon
parameter

Keywords

  • Infrared:General
  • Supernovae:General
  • Supernovae:Individual (2014j)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Marion, G. H., Sand, D. J., Hsiao, E. Y., Banerjee, D. P. K., Valenti, S., Stritzinger, M. D., ... Wheeler, J. C. (2015). Early observations and analysis of the type Ia SN 2014J in M82. Astrophysical Journal, 798(1), [39]. https://doi.org/10.1088/0004-637X/798/1/39

Early observations and analysis of the type Ia SN 2014J in M82. / Marion, G. H.; Sand, D. J.; Hsiao, E. Y.; Banerjee, D. P K; Valenti, S.; Stritzinger, M. D.; Vinkó, J.; Joshi, V.; Venkataraman, V.; Ashok, N. M.; Amanullah, R.; Binzel, R. P.; Bochanski, J. J.; Bryngelson, G. L.; Burns, C. R.; Drozdov, D.; Fieber-Beyer, S. K.; Graham, M. L.; Howell, D. A.; Johansson, J.; Kirshner, R. P.; Milne, P. A.; Parrent, J.; Silverman, J. M.; Vervack, R. J.; Wheeler, J. C.

In: Astrophysical Journal, Vol. 798, No. 1, 39, 01.01.2015.

Research output: Contribution to journalArticle

Marion, GH, Sand, DJ, Hsiao, EY, Banerjee, DPK, Valenti, S, Stritzinger, MD, Vinkó, J, Joshi, V, Venkataraman, V, Ashok, NM, Amanullah, R, Binzel, RP, Bochanski, JJ, Bryngelson, GL, Burns, CR, Drozdov, D, Fieber-Beyer, SK, Graham, ML, Howell, DA, Johansson, J, Kirshner, RP, Milne, PA, Parrent, J, Silverman, JM, Vervack, RJ & Wheeler, JC 2015, 'Early observations and analysis of the type Ia SN 2014J in M82', Astrophysical Journal, vol. 798, no. 1, 39. https://doi.org/10.1088/0004-637X/798/1/39
Marion GH, Sand DJ, Hsiao EY, Banerjee DPK, Valenti S, Stritzinger MD et al. Early observations and analysis of the type Ia SN 2014J in M82. Astrophysical Journal. 2015 Jan 1;798(1). 39. https://doi.org/10.1088/0004-637X/798/1/39
Marion, G. H. ; Sand, D. J. ; Hsiao, E. Y. ; Banerjee, D. P K ; Valenti, S. ; Stritzinger, M. D. ; Vinkó, J. ; Joshi, V. ; Venkataraman, V. ; Ashok, N. M. ; Amanullah, R. ; Binzel, R. P. ; Bochanski, J. J. ; Bryngelson, G. L. ; Burns, C. R. ; Drozdov, D. ; Fieber-Beyer, S. K. ; Graham, M. L. ; Howell, D. A. ; Johansson, J. ; Kirshner, R. P. ; Milne, P. A. ; Parrent, J. ; Silverman, J. M. ; Vervack, R. J. ; Wheeler, J. C. / Early observations and analysis of the type Ia SN 2014J in M82. In: Astrophysical Journal. 2015 ; Vol. 798, No. 1.
@article{2ea393689e8a4716a56ce42226970989,
title = "Early observations and analysis of the type Ia SN 2014J in M82",
abstract = "We present optical and near infrared (NIR) observations of the nearby Type Ia SN 2014J. Seventeen optical and 23 NIR spectra were obtained from 10 days before (-10d) to 10 days after (+10d) the time of maximum B-band brightness. The relative strengths of absorption features and their patterns of development can be compared at one day intervals throughout most of this period. Carbon is not detected in the optical spectra, but we identify C I λ1.0693 in the NIR spectra. Mg II lines with high oscillator strengths have higher initial velocities than other Mg II lines.We show that the velocity differences can be explained by differences in optical depths due to oscillator strengths. The spectra of SN 2014J show that it is a normal SN Ia, but many parameters are near the boundaries between normal and high-velocity subclasses. The velocities for O I, Mg II, Si II, S II, Ca II, and Fe II suggest that SN 2014J has a layered structure with little or no mixing. That result is consistent with the delayed detonation explosion models.We also report photometric observations, obtained from -10d to +29d, in the UBVRIJH and Ks bands. The template fitting package SNooPy is used to interpret the light curves and to derive photometric parameters. Using RV = 1.46, which is consistent with previous studies, SNooPy finds that AV = 1.80 for E (B - V)host = 1.23 ± 0.06 mag. The maximum B-band brightness of -19.19 ± 0.10 mag was reached on February 1.74 UT ± 0.13 days and the supernova has a decline parameter, Δm15, of 1.12 ± 0.02 mag.",
keywords = "Infrared:General, Supernovae:General, Supernovae:Individual (2014j)",
author = "Marion, {G. H.} and Sand, {D. J.} and Hsiao, {E. Y.} and Banerjee, {D. P K} and S. Valenti and Stritzinger, {M. D.} and J. Vink{\'o} and V. Joshi and V. Venkataraman and Ashok, {N. M.} and R. Amanullah and Binzel, {R. P.} and Bochanski, {J. J.} and Bryngelson, {G. L.} and Burns, {C. R.} and D. Drozdov and Fieber-Beyer, {S. K.} and Graham, {M. L.} and Howell, {D. A.} and J. Johansson and Kirshner, {R. P.} and Milne, {P. A.} and J. Parrent and Silverman, {J. M.} and Vervack, {R. J.} and Wheeler, {J. C.}",
year = "2015",
month = "1",
day = "1",
doi = "10.1088/0004-637X/798/1/39",
language = "English",
volume = "798",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "1",

}

TY - JOUR

T1 - Early observations and analysis of the type Ia SN 2014J in M82

AU - Marion, G. H.

AU - Sand, D. J.

AU - Hsiao, E. Y.

AU - Banerjee, D. P K

AU - Valenti, S.

AU - Stritzinger, M. D.

AU - Vinkó, J.

AU - Joshi, V.

AU - Venkataraman, V.

AU - Ashok, N. M.

AU - Amanullah, R.

AU - Binzel, R. P.

AU - Bochanski, J. J.

AU - Bryngelson, G. L.

AU - Burns, C. R.

AU - Drozdov, D.

AU - Fieber-Beyer, S. K.

AU - Graham, M. L.

AU - Howell, D. A.

AU - Johansson, J.

AU - Kirshner, R. P.

AU - Milne, P. A.

AU - Parrent, J.

AU - Silverman, J. M.

AU - Vervack, R. J.

AU - Wheeler, J. C.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We present optical and near infrared (NIR) observations of the nearby Type Ia SN 2014J. Seventeen optical and 23 NIR spectra were obtained from 10 days before (-10d) to 10 days after (+10d) the time of maximum B-band brightness. The relative strengths of absorption features and their patterns of development can be compared at one day intervals throughout most of this period. Carbon is not detected in the optical spectra, but we identify C I λ1.0693 in the NIR spectra. Mg II lines with high oscillator strengths have higher initial velocities than other Mg II lines.We show that the velocity differences can be explained by differences in optical depths due to oscillator strengths. The spectra of SN 2014J show that it is a normal SN Ia, but many parameters are near the boundaries between normal and high-velocity subclasses. The velocities for O I, Mg II, Si II, S II, Ca II, and Fe II suggest that SN 2014J has a layered structure with little or no mixing. That result is consistent with the delayed detonation explosion models.We also report photometric observations, obtained from -10d to +29d, in the UBVRIJH and Ks bands. The template fitting package SNooPy is used to interpret the light curves and to derive photometric parameters. Using RV = 1.46, which is consistent with previous studies, SNooPy finds that AV = 1.80 for E (B - V)host = 1.23 ± 0.06 mag. The maximum B-band brightness of -19.19 ± 0.10 mag was reached on February 1.74 UT ± 0.13 days and the supernova has a decline parameter, Δm15, of 1.12 ± 0.02 mag.

AB - We present optical and near infrared (NIR) observations of the nearby Type Ia SN 2014J. Seventeen optical and 23 NIR spectra were obtained from 10 days before (-10d) to 10 days after (+10d) the time of maximum B-band brightness. The relative strengths of absorption features and their patterns of development can be compared at one day intervals throughout most of this period. Carbon is not detected in the optical spectra, but we identify C I λ1.0693 in the NIR spectra. Mg II lines with high oscillator strengths have higher initial velocities than other Mg II lines.We show that the velocity differences can be explained by differences in optical depths due to oscillator strengths. The spectra of SN 2014J show that it is a normal SN Ia, but many parameters are near the boundaries between normal and high-velocity subclasses. The velocities for O I, Mg II, Si II, S II, Ca II, and Fe II suggest that SN 2014J has a layered structure with little or no mixing. That result is consistent with the delayed detonation explosion models.We also report photometric observations, obtained from -10d to +29d, in the UBVRIJH and Ks bands. The template fitting package SNooPy is used to interpret the light curves and to derive photometric parameters. Using RV = 1.46, which is consistent with previous studies, SNooPy finds that AV = 1.80 for E (B - V)host = 1.23 ± 0.06 mag. The maximum B-band brightness of -19.19 ± 0.10 mag was reached on February 1.74 UT ± 0.13 days and the supernova has a decline parameter, Δm15, of 1.12 ± 0.02 mag.

KW - Infrared:General

KW - Supernovae:General

KW - Supernovae:Individual (2014j)

UR - http://www.scopus.com/inward/record.url?scp=84919483175&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84919483175&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/798/1/39

DO - 10.1088/0004-637X/798/1/39

M3 - Article

AN - SCOPUS:84919483175

VL - 798

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 1

M1 - 39

ER -