Post-maximum near-infrared spectra of SN 2014J: A search for interaction signatures

D. J. Sand; E. Y. Hsiao; D. P.K. Banerjee; G. H. Marion; T. R. Diamond; V. Joshi; J. T. Parrent; M. M. Phillips; M. D. Stritzinger; V. Venkataraman

doi:10.3847/2041-8205/822/1/L16

Post-maximum near-infrared spectra of SN 2014J: A search for interaction signatures

D. J. Sand, E. Y. Hsiao, D. P.K. Banerjee, G. H. Marion, T. R. Diamond, V. Joshi, J. T. Parrent, M. M. Phillips, M. D. Stritzinger, V. Venkataraman

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We present near-infrared (NIR) spectroscopic and photometric observations of the nearby Type Ia SN 2014J. The 17 NIR spectra span epochs from +15.3 to +92.5 days after B-band maximum light, while the JHK_s photometry include epochs from -10 to +71 days. These data are used to constrain the progenitor system of SN 2014J utilizing the Paβ line, following recent suggestions that this phase period and the NIR in particular are excellent for constraining the amount of swept-up hydrogen-rich material associated with a non-degenerate companion star. We find no evidence for Paβ emission lines in our post-maximum spectra, with a rough hydrogen mass limit of ≲0.1 M_⊙, which is consistent with previous limits in SN 2014J from late-time optical spectra of the Hα line. Nonetheless, the growing data set of high-quality NIR spectra holds the promise of very useful hydrogen constraints.

Original language	English (US)
Article number	L16
Journal	Astrophysical Journal Letters
Volume	822
Issue number	1
DOIs	https://doi.org/10.3847/2041-8205/822/1/L16
State	Published - 2016
Externally published	Yes

Keywords

Infrared: general
Supernovae: general
Supernovae: individual (2014J)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/2041-8205/822/1/L16

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Post-maximum near-infrared spectra of SN 2014J : A search for interaction signatures. / Sand, D. J.; Hsiao, E. Y.; Banerjee, D. P.K.; Marion, G. H.; Diamond, T. R.; Joshi, V.; Parrent, J. T.; Phillips, M. M.; Stritzinger, M. D.; Venkataraman, V.

In: Astrophysical Journal Letters, Vol. 822, No. 1, L16, 2016.

Research output: Contribution to journal › Article › peer-review

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title = "Post-maximum near-infrared spectra of SN 2014J: A search for interaction signatures",

abstract = "We present near-infrared (NIR) spectroscopic and photometric observations of the nearby Type Ia SN 2014J. The 17 NIR spectra span epochs from +15.3 to +92.5 days after B-band maximum light, while the JHKs photometry include epochs from -10 to +71 days. These data are used to constrain the progenitor system of SN 2014J utilizing the Paβ line, following recent suggestions that this phase period and the NIR in particular are excellent for constraining the amount of swept-up hydrogen-rich material associated with a non-degenerate companion star. We find no evidence for Paβ emission lines in our post-maximum spectra, with a rough hydrogen mass limit of ≲0.1 M⊙, which is consistent with previous limits in SN 2014J from late-time optical spectra of the Hα line. Nonetheless, the growing data set of high-quality NIR spectra holds the promise of very useful hydrogen constraints.",

keywords = "Infrared: general, Supernovae: general, Supernovae: individual (2014J)",

author = "Sand, {D. J.} and Hsiao, {E. Y.} and Banerjee, {D. P.K.} and Marion, {G. H.} and Diamond, {T. R.} and V. Joshi and Parrent, {J. T.} and Phillips, {M. M.} and Stritzinger, {M. D.} and V. Venkataraman",

note = "Funding Information: D.J.S. acknowledges support from NSF grants AST-1412504 and AST-1517649. The research work at the PRL is funded by the Department of Space, Government of India. M.D.S. acknowledges support provided by the Danish Agency for Science and Technology and Innovation realized through a Sapere Aude Level 2 grant. This Letter is partially based on observations carried out by the CSP that were supported by the National Science Foundation under grant No. AST-1008343. We are grateful to Stefano Valenti for his comments. Publisher Copyright: {\textcopyright} 2016. The American Astronomical Society. All rights reserved.",

year = "2016",

doi = "10.3847/2041-8205/822/1/L16",

language = "English (US)",

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T1 - Post-maximum near-infrared spectra of SN 2014J

T2 - A search for interaction signatures

AU - Sand, D. J.

AU - Hsiao, E. Y.

AU - Banerjee, D. P.K.

AU - Marion, G. H.

AU - Diamond, T. R.

AU - Joshi, V.

AU - Parrent, J. T.

AU - Phillips, M. M.

AU - Stritzinger, M. D.

AU - Venkataraman, V.

N1 - Funding Information: D.J.S. acknowledges support from NSF grants AST-1412504 and AST-1517649. The research work at the PRL is funded by the Department of Space, Government of India. M.D.S. acknowledges support provided by the Danish Agency for Science and Technology and Innovation realized through a Sapere Aude Level 2 grant. This Letter is partially based on observations carried out by the CSP that were supported by the National Science Foundation under grant No. AST-1008343. We are grateful to Stefano Valenti for his comments. Publisher Copyright: © 2016. The American Astronomical Society. All rights reserved.

PY - 2016

Y1 - 2016

N2 - We present near-infrared (NIR) spectroscopic and photometric observations of the nearby Type Ia SN 2014J. The 17 NIR spectra span epochs from +15.3 to +92.5 days after B-band maximum light, while the JHKs photometry include epochs from -10 to +71 days. These data are used to constrain the progenitor system of SN 2014J utilizing the Paβ line, following recent suggestions that this phase period and the NIR in particular are excellent for constraining the amount of swept-up hydrogen-rich material associated with a non-degenerate companion star. We find no evidence for Paβ emission lines in our post-maximum spectra, with a rough hydrogen mass limit of ≲0.1 M⊙, which is consistent with previous limits in SN 2014J from late-time optical spectra of the Hα line. Nonetheless, the growing data set of high-quality NIR spectra holds the promise of very useful hydrogen constraints.

AB - We present near-infrared (NIR) spectroscopic and photometric observations of the nearby Type Ia SN 2014J. The 17 NIR spectra span epochs from +15.3 to +92.5 days after B-band maximum light, while the JHKs photometry include epochs from -10 to +71 days. These data are used to constrain the progenitor system of SN 2014J utilizing the Paβ line, following recent suggestions that this phase period and the NIR in particular are excellent for constraining the amount of swept-up hydrogen-rich material associated with a non-degenerate companion star. We find no evidence for Paβ emission lines in our post-maximum spectra, with a rough hydrogen mass limit of ≲0.1 M⊙, which is consistent with previous limits in SN 2014J from late-time optical spectra of the Hα line. Nonetheless, the growing data set of high-quality NIR spectra holds the promise of very useful hydrogen constraints.

KW - Infrared: general

KW - Supernovae: general

KW - Supernovae: individual (2014J)

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SN - 2041-8205

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M1 - L16

ER -

Post-maximum near-infrared spectra of SN 2014J: A search for interaction signatures

Abstract

Keywords

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