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Testing for Intrinsic Type Ia Supernova Luminosity Evolution at z>2 with JWST

Fuente: arXiv

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Auteurs principaux:	Pierel, J. D. R., Coulter, D. A., Siebert, M. R., Akins, H. B., Engesser, M., Fox, O. D., Franco, M., Rest, A., Agrawal, A., Ajay, Y., Allen, N., Casey, C. M., Decoursey, C., Drakos, N. E., Egami, E., Faisst, A. L., Gezari, S., Gozaliasl, G., Ilbert, O., Jones, D. O., Karmen, M., Kartaltepe, J. S., Koekemoer, A. M., Lane, Z. G., Larson, R. L., Li, T., Liu, D., Moriya, T. J., McCracken, H. J., Paquereau, L., Quimby, R. M., Rich, R. M., Rhodes, J., Robertson, B. E., Sanders, D. B., Shahbandeh, M., Shuntov, M., Silverman, J. D., Strolger, L. G., Toft, S., Zenati, Y.
Format:	Preprint
Publié:	2024
Sujets:	Cosmology and Nongalactic Astrophysics
Accès en ligne:	Acceder al recurso
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_version_	1866910822697009152
author	Pierel, J. D. R. Coulter, D. A. Siebert, M. R. Akins, H. B. Engesser, M. Fox, O. D. Franco, M. Rest, A. Agrawal, A. Ajay, Y. Allen, N. Casey, C. M. Decoursey, C. Drakos, N. E. Egami, E. Faisst, A. L. Gezari, S. Gozaliasl, G. Ilbert, O. Jones, D. O. Karmen, M. Kartaltepe, J. S. Koekemoer, A. M. Lane, Z. G. Larson, R. L. Li, T. Liu, D. Moriya, T. J. McCracken, H. J. Paquereau, L. Quimby, R. M. Rich, R. M. Rhodes, J. Robertson, B. E. Sanders, D. B. Shahbandeh, M. Shuntov, M. Silverman, J. D. Strolger, L. G. Toft, S. Zenati, Y.
author_facet	Pierel, J. D. R. Coulter, D. A. Siebert, M. R. Akins, H. B. Engesser, M. Fox, O. D. Franco, M. Rest, A. Agrawal, A. Ajay, Y. Allen, N. Casey, C. M. Decoursey, C. Drakos, N. E. Egami, E. Faisst, A. L. Gezari, S. Gozaliasl, G. Ilbert, O. Jones, D. O. Karmen, M. Kartaltepe, J. S. Koekemoer, A. M. Lane, Z. G. Larson, R. L. Li, T. Liu, D. Moriya, T. J. McCracken, H. J. Paquereau, L. Quimby, R. M. Rich, R. M. Rhodes, J. Robertson, B. E. Sanders, D. B. Shahbandeh, M. Shuntov, M. Silverman, J. D. Strolger, L. G. Toft, S. Zenati, Y.
contents	The James Webb Space Telescope} (JWST) is opening new frontiers of transient discovery and follow-up at high-redshift. Here we present the discovery of a spectroscopically confirmed Type Ia supernova (SN Ia; SN $2023$aeax) at $z=2.15$ with JWST, including a NIRCam multi-band light curve. SN $2023$aeax lands at the edge of traditional low-$z$ cosmology cuts because of its blue color (peak rest-frame $B-V\sim-0.3$) but with a normal decline rate ($Δm_{15}(B)\sim1.25$), and applying a fiducial standardization with the BayeSN model we find the SN $2023$aeax luminosity distance is in $\sim0.1σ$ agreement with $Λ$CDM. SN $2023$aeax is only the second spectroscopically confirmed SN Ia in the dark matter-dominated Universe at $z>2$ (the other is SN $2023$adsy), giving it rare leverage to constrain any potential evolution in SN Ia standardized luminosities. Similar to SN $2023$adsy ($B-V\sim0.8)$, SN $2023$aeax has a fairly extreme (but opposite) color, which may be due to the small sample size or a secondary factor, such as host galaxy properties. Nevertheless, the SN $2023$aeax spectrum is well-represented by normal low-$z$ SN Ia spectra and we find no definitive evolution in SN Ia standardization with redshift. Still, the first two spectroscopically confirmed $z>2$ SNe Ia have peculiar colors and combine for a $\sim1σ$ distance slope relative to $Λ$CDM, though in agreement with recent SN Ia cosmological measurements.
format	Preprint
id	arxiv_https___arxiv_org_abs_2411_11953
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Testing for Intrinsic Type Ia Supernova Luminosity Evolution at z>2 with JWST Pierel, J. D. R. Coulter, D. A. Siebert, M. R. Akins, H. B. Engesser, M. Fox, O. D. Franco, M. Rest, A. Agrawal, A. Ajay, Y. Allen, N. Casey, C. M. Decoursey, C. Drakos, N. E. Egami, E. Faisst, A. L. Gezari, S. Gozaliasl, G. Ilbert, O. Jones, D. O. Karmen, M. Kartaltepe, J. S. Koekemoer, A. M. Lane, Z. G. Larson, R. L. Li, T. Liu, D. Moriya, T. J. McCracken, H. J. Paquereau, L. Quimby, R. M. Rich, R. M. Rhodes, J. Robertson, B. E. Sanders, D. B. Shahbandeh, M. Shuntov, M. Silverman, J. D. Strolger, L. G. Toft, S. Zenati, Y. Cosmology and Nongalactic Astrophysics The James Webb Space Telescope} (JWST) is opening new frontiers of transient discovery and follow-up at high-redshift. Here we present the discovery of a spectroscopically confirmed Type Ia supernova (SN Ia; SN $2023$aeax) at $z=2.15$ with JWST, including a NIRCam multi-band light curve. SN $2023$aeax lands at the edge of traditional low-$z$ cosmology cuts because of its blue color (peak rest-frame $B-V\sim-0.3$) but with a normal decline rate ($Δm_{15}(B)\sim1.25$), and applying a fiducial standardization with the BayeSN model we find the SN $2023$aeax luminosity distance is in $\sim0.1σ$ agreement with $Λ$CDM. SN $2023$aeax is only the second spectroscopically confirmed SN Ia in the dark matter-dominated Universe at $z>2$ (the other is SN $2023$adsy), giving it rare leverage to constrain any potential evolution in SN Ia standardized luminosities. Similar to SN $2023$adsy ($B-V\sim0.8)$, SN $2023$aeax has a fairly extreme (but opposite) color, which may be due to the small sample size or a secondary factor, such as host galaxy properties. Nevertheless, the SN $2023$aeax spectrum is well-represented by normal low-$z$ SN Ia spectra and we find no definitive evolution in SN Ia standardization with redshift. Still, the first two spectroscopically confirmed $z>2$ SNe Ia have peculiar colors and combine for a $\sim1σ$ distance slope relative to $Λ$CDM, though in agreement with recent SN Ia cosmological measurements.
title	Testing for Intrinsic Type Ia Supernova Luminosity Evolution at z>2 with JWST
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2411.11953