The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22

D. Rubin; B. Hayden; X. Huang; G. Aldering; R. Amanullah; K. Barbary; K. Boone; M. Brodwin; S. E. Deustua; S. Dixon; P. Eisenhardt; A. S. Fruchter; A. H. Gonzalez; A. Goobar; R. R. Gupta; I. Hook; M. J. Jee; A. G. Kim; M. Kowalski; C. E. Lidman; E. Linder; K. Luther; J. Nordin; R. Pain; S. Perlmutter; Z. Raha; M. Rigault; P. Ruiz-Lapuente; C. M. Saunders; C. Sofiatti; A. L. Spadafora; S. A. Stanford; D. Stern; N. Suzuki; S. C. Williams

doi:10.3847/1538-4357/aad565

The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22

D. Rubin, B. Hayden, X. Huang, G. Aldering, R. Amanullah, K. Barbary, K. Boone, M. Brodwin, S. E. Deustua, S. Dixon, P. Eisenhardt, A. S. Fruchter, A. H. Gonzalez, A. Goobar, R. R. Gupta, I. Hook, M. J. Jee, A. G. Kim, M. Kowalski, C. E. LidmanE. Linder, K. Luther, J. Nordin, R. Pain, S. Perlmutter, Z. Raha, M. Rigault, P. Ruiz-Lapuente, C. M. Saunders, C. Sofiatti, A. L. Spadafora, S. A. Stanford, D. Stern, N. Suzuki, S. C. Williams

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Abstract

We present the discovery and measurements of a gravitationally lensed supernova (SN) behind the galaxy cluster MOO J1014+0038. Based on multi-band Hubble Space Telescope and Very Large Telescope (VLT) photometry of the supernova, and VLT spectroscopy of the host galaxy, we find a 97.5% probability that this SN is a SN Ia, and a 2.5% chance of a CC SN. Our typing algorithm combines the shape and color of the light curve with the expected rates of each SN type in the host galaxy. With a redshift of 2.2216, this is the highest redshift SN Ia discovered with a spectroscopic host-galaxy redshift. A further distinguishing feature is that the lensing cluster, at redshift 1.23, is the most distant to date to have an amplified SN. The SN lies in the middle of the color and light-curve shape distributions found at lower redshift, disfavoring strong evolution to z = 2.22. We estimate an amplification due to gravitational lensing of (1.10 0.23 mag) - compatible with the value estimated from the weak-lensing-derived mass and the mass-concentration relation from ΛCDM simulations - making it the most amplified SN Ia discovered behind a galaxy cluster.

Original language	English
Article number	65
Journal	Astrophysical Journal
Volume	866
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/aad565
Publication status	Published - 10 Oct 2018
Externally published	Yes

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Rubin, D., Hayden, B., Huang, X., Aldering, G., Amanullah, R., Barbary, K., Boone, K., Brodwin, M., Deustua, S. E., Dixon, S., Eisenhardt, P., Fruchter, A. S., Gonzalez, A. H., Goobar, A., Gupta, R. R., Hook, I., Jee, M. J., Kim, A. G., Kowalski, M., ... Williams, S. C. (2018). The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22. Astrophysical Journal, 866(1), Article 65. https://doi.org/10.3847/1538-4357/aad565

@article{5ce46a9d598945dcace43674f472650c,

title = "The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22",

abstract = "We present the discovery and measurements of a gravitationally lensed supernova (SN) behind the galaxy cluster MOO J1014+0038. Based on multi-band Hubble Space Telescope and Very Large Telescope (VLT) photometry of the supernova, and VLT spectroscopy of the host galaxy, we find a 97.5% probability that this SN is a SN Ia, and a 2.5% chance of a CC SN. Our typing algorithm combines the shape and color of the light curve with the expected rates of each SN type in the host galaxy. With a redshift of 2.2216, this is the highest redshift SN Ia discovered with a spectroscopic host-galaxy redshift. A further distinguishing feature is that the lensing cluster, at redshift 1.23, is the most distant to date to have an amplified SN. The SN lies in the middle of the color and light-curve shape distributions found at lower redshift, disfavoring strong evolution to z = 2.22. We estimate an amplification due to gravitational lensing of (1.10 0.23 mag) - compatible with the value estimated from the weak-lensing-derived mass and the mass-concentration relation from ΛCDM simulations - making it the most amplified SN Ia discovered behind a galaxy cluster.",

keywords = "cosmology: observations, galaxies: clusters: individual (MOO J1014+0038) supernovae: general, gravitational lensing: weak",

author = "D. Rubin and B. Hayden and X. Huang and G. Aldering and R. Amanullah and K. Barbary and K. Boone and M. Brodwin and Deustua, {S. E.} and S. Dixon and P. Eisenhardt and Fruchter, {A. S.} and Gonzalez, {A. H.} and A. Goobar and Gupta, {R. R.} and I. Hook and Jee, {M. J.} and Kim, {A. G.} and M. Kowalski and Lidman, {C. E.} and E. Linder and K. Luther and J. Nordin and R. Pain and S. Perlmutter and Z. Raha and M. Rigault and P. Ruiz-Lapuente and Saunders, {C. M.} and C. Sofiatti and Spadafora, {A. L.} and Stanford, {S. A.} and D. Stern and N. Suzuki and Williams, {S. C.}",

year = "2018",

month = oct,

day = "10",

doi = "10.3847/1538-4357/aad565",

language = "English",

volume = "866",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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Rubin, D, Hayden, B, Huang, X, Aldering, G, Amanullah, R, Barbary, K, Boone, K, Brodwin, M, Deustua, SE, Dixon, S, Eisenhardt, P, Fruchter, AS, Gonzalez, AH, Goobar, A, Gupta, RR, Hook, I, Jee, MJ, Kim, AG, Kowalski, M, Lidman, CE, Linder, E, Luther, K, Nordin, J, Pain, R, Perlmutter, S, Raha, Z, Rigault, M, Ruiz-Lapuente, P, Saunders, CM, Sofiatti, C, Spadafora, AL, Stanford, SA, Stern, D, Suzuki, N & Williams, SC 2018, 'The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22', Astrophysical Journal, vol. 866, no. 1, 65. https://doi.org/10.3847/1538-4357/aad565

TY - JOUR

T1 - The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22

AU - Rubin, D.

AU - Hayden, B.

AU - Huang, X.

AU - Aldering, G.

AU - Amanullah, R.

AU - Barbary, K.

AU - Boone, K.

AU - Brodwin, M.

AU - Deustua, S. E.

AU - Dixon, S.

AU - Eisenhardt, P.

AU - Fruchter, A. S.

AU - Gonzalez, A. H.

AU - Goobar, A.

AU - Gupta, R. R.

AU - Hook, I.

AU - Jee, M. J.

AU - Kim, A. G.

AU - Kowalski, M.

AU - Lidman, C. E.

AU - Linder, E.

AU - Luther, K.

AU - Nordin, J.

AU - Pain, R.

AU - Perlmutter, S.

AU - Raha, Z.

AU - Rigault, M.

AU - Ruiz-Lapuente, P.

AU - Saunders, C. M.

AU - Sofiatti, C.

AU - Spadafora, A. L.

AU - Stanford, S. A.

AU - Stern, D.

AU - Suzuki, N.

AU - Williams, S. C.

PY - 2018/10/10

Y1 - 2018/10/10

N2 - We present the discovery and measurements of a gravitationally lensed supernova (SN) behind the galaxy cluster MOO J1014+0038. Based on multi-band Hubble Space Telescope and Very Large Telescope (VLT) photometry of the supernova, and VLT spectroscopy of the host galaxy, we find a 97.5% probability that this SN is a SN Ia, and a 2.5% chance of a CC SN. Our typing algorithm combines the shape and color of the light curve with the expected rates of each SN type in the host galaxy. With a redshift of 2.2216, this is the highest redshift SN Ia discovered with a spectroscopic host-galaxy redshift. A further distinguishing feature is that the lensing cluster, at redshift 1.23, is the most distant to date to have an amplified SN. The SN lies in the middle of the color and light-curve shape distributions found at lower redshift, disfavoring strong evolution to z = 2.22. We estimate an amplification due to gravitational lensing of (1.10 0.23 mag) - compatible with the value estimated from the weak-lensing-derived mass and the mass-concentration relation from ΛCDM simulations - making it the most amplified SN Ia discovered behind a galaxy cluster.

AB - We present the discovery and measurements of a gravitationally lensed supernova (SN) behind the galaxy cluster MOO J1014+0038. Based on multi-band Hubble Space Telescope and Very Large Telescope (VLT) photometry of the supernova, and VLT spectroscopy of the host galaxy, we find a 97.5% probability that this SN is a SN Ia, and a 2.5% chance of a CC SN. Our typing algorithm combines the shape and color of the light curve with the expected rates of each SN type in the host galaxy. With a redshift of 2.2216, this is the highest redshift SN Ia discovered with a spectroscopic host-galaxy redshift. A further distinguishing feature is that the lensing cluster, at redshift 1.23, is the most distant to date to have an amplified SN. The SN lies in the middle of the color and light-curve shape distributions found at lower redshift, disfavoring strong evolution to z = 2.22. We estimate an amplification due to gravitational lensing of (1.10 0.23 mag) - compatible with the value estimated from the weak-lensing-derived mass and the mass-concentration relation from ΛCDM simulations - making it the most amplified SN Ia discovered behind a galaxy cluster.

KW - cosmology: observations

KW - galaxies: clusters: individual (MOO J1014+0038) supernovae: general

KW - gravitational lensing: weak

UR - http://www.scopus.com/inward/record.url?scp=85055200301&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/aad565

DO - 10.3847/1538-4357/aad565

M3 - Article

SN - 0004-637X

VL - 866

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 65

ER -

The Discovery of a Gravitationally Lensed Supernova Ia at Redshift 2.22

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