NS
N. B. Suntzeff
astro-phastro-ph.HEastro-ph.SRastro-ph.COastro-ph.GAastro-ph.IMastro-ph.EPhep-phAstronomyBinary neutron stars
On Valency
published · living versionsW_rwrdp6kw·v1 · currentpublished
Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
with M. Kowalski, D. Rubin, G. Aldering, R. J. Agostinho +65
1 version
W_594umn73·v1published
W_n4kpatfs·v1published
W_ajwe8eeg·v1published
W_2y9jcqt8·v1published
Preprints & journals
228 papers in the corpus · 1996–2026The host galaxies of 2003fg-like type Ia supernovae2608.26281v1 · Llu'is Galbany, Chris Ashall, Jing Lu et al.2026 · 0 citationsarXiv
JWST Medium-Resolution Infrared Spectroscopy of SN 2022acko: Tracing Molecule Formation in the Nebular Phase2606.31176v1 · K. Medler, T. Mera, C. Ashall et al.2026 · 0 citationsarXiv
Carnegie Supernova Project: Fast-Declining Type Ia Supernovae as Cosmological Distance Indicators2509.07093v3 · M. M. Phillips, Syed A. Uddin, Christopher R. Burns et al.2025 · 1 citationarXiv
JWST Observations of SN 2023ixf II: The Panchromatic Evolution Between 250 and 720 Days After the Explosion2507.19727v1 · K. Medler, C. Ashall, P. Hoeflich et al.2025 · 10 citationsarXiv
JWST Observations of SN 2024ggi I: Interpretation and Model Comparison of the Type II Supernova 2024ggi at 55 days Past Explosion2507.18753v2 · E. Baron, C. Ashall, J. M. DerKacy et al.2025 · 6 citationsarXiv
JWST Observations of SN 2023ixf I: Completing the Early Multi-Wavelength Picture with Plateau-phase Spectroscopy2507.18785v2 · J. M. DerKacy, C. Ashall, E. Baron et al.2025 · 0 citationsarXiv
The Search for Stable Nickel: Investigating the Origins of Type Ia Supernovae with Late-time NIR Spectroscopy from the Carnegie Supernova Project-II2504.17134v2 · Sahana Kumar, Eric Y. Hsiao, Christopher Ashall et al.2025 · 5 citationsApJ 1000 178 (2026)
Analyzing type Ia supernovae near-infrared light curves with Principal Component Analysis2504.05856v2 · T. E. Muller-Bravo, L.Galbany, M. D. Stritzinger et al.2025 · 3 citationsA&A 702, A134 (2025)
Three-dimensional Structure of Incomplete Carbon-Oxygen Detonations in Type Ia Supernovae2501.19190v1 · A. Khokhlov, I. Dominguez, A.Y. Chtchelkanova et al.2025 · 3 citationsarXiv
Optical and near-infrared photometry of 94 type II supernovae from the Carnegie Supernova Project2410.06738v1 · J.P. Anderson, C. Contreras, M.D. Stritzinger et al.2024 · 17 citationsarXiv
The Dark Energy Survey Supernova Program: An updated measurement of the Hubble constant using the Inverse Distance Ladder2406.05049v1 · R. Camilleri, T. M. Davis, S. R. Hinton et al.2024 · 19 citationsarXiv
1991T-like Supernovae2405.15027v1 · M. M. Phillips, C. Ashall, Peter J. Brown et al.2024 · 15 citationsarXiv
Optical Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Projects I and II2404.19208v2 · N. Morrell, M. M. Phillips, G. Folatelli et al.2024 · 15 citationsarXiv
A JWST Medium Resolution MIRI Spectrum and Models of the Type Ia supernova 2021aefx at +415 d2404.17043v2 · C. Ashall, P.Hoeflich, E. Baron et al.2024 · 0 citationsarXiv
Extrapolation of Type Ia Supernova Spectra into the Near-Infrared Using PCA2404.04724v1 · Anthony Burrow, E. Baron, Christopher R. Burns et al.2024 · 0 citationsarXiv
JWST NIRSpec+MIRI Observations of the nearby Type IIP supernova 2022acko2401.14474v1 · M. Shahbandeh, C. Ashall, P. Hoeflich et al.2024 · 0 citationsarXiv
The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset2401.02929v4 · T. M. C. Abbott, M. Acevedo, M. Aguena et al.2024 · 35 citationsThe Astrophysical Journal Letters (2024), 973(1), L14on Valency
Type Ia Supernova Progenitor Properties and Their Host Galaxies2311.03473v3 · Sudeshna Chakraborty, Benjamin Sadler, Peter Hoeflich et al.2023 · 13 citationsThe Astrophysical Journal (2024), Volume 969, Number 2, 80
JWST MIRI/MRS Observations and Spectral Models of the Under-luminous Type Ia Supernova 2022xkq2310.09153v2 · J. M. DerKacy, C. Ashall, P. Hoeflich et al.2023 · 0 citationsarXiv
SN 2021gno: a Calcium-rich transient with double-peaked light curves2309.07800v1 · K. Ertini, G. Folatelli, L. Martinez et al.2023 · 13 citationsarXiv
Ground-based and JWST Observations of SN 2022pul: I. Unusual Signatures of Carbon, Oxygen, and Circumstellar Interaction in a Peculiar Type Ia Supernova2308.12449v1 · Matthew R. Siebert, Lindsey A. Kwok, Joel Johansson et al.2023 · 28 citationsarXiv
Ground-based and JWST Observations of SN 2022pul: II. Evidence from Nebular Spectroscopy for a Violent Merger in a Peculiar Type-Ia Supernova2308.12450v2 · Lindsey A. Kwok, Matthew R. Siebert, Joel Johansson et al.2023 · 28 citationsThe Astrophysical Journal, Volume 966, Issue 1, id.135, 18 pp., May 2024
Carnegie Supernova Project-I and -II: Measurements of using Cepheid, TRGB, and SBF Distance Calibration to Type Ia Supernovae2308.01875v2 · Syed A. Uddin, Christopher R. Burns, Mark M. Phillips et al.2023 · 13 citationsarXiv
Fast and Not-so-Furious: Case Study of the Fast and Faint Type IIb SN 2021bxu2303.13581v2 · Dhvanil D. Desai, Chris Ashall, Benjamin J. Shappee et al.2023 · 5 citationsMonthly Notices of the Royal Astronomical Society, Volume 524, Issue 1, September 2023, Pages 767-785
The Carnegie Supernova Project-I. Optical spectroscopy of stripped-envelope supernovae2302.11303v2 · M. D. Stritzinger (Aarhus), S. Holmbo, N. Morrell et al.2023 · 9 citationsA&A 675, A83 (2023)
The Carnegie Supernova Project-I. Spectroscopic analysis of stripped-envelope supernovae2302.11304v2 · S. Holmbo (Aarhus), M. D. Stritzinger, E. Karamehmetoglu et al.2023 · 19 citationsarXiv
JWST Low-Resolution MIRI Spectral Observations of SN~2021aefx: High-density Burning in a Type Ia Supernova2301.03647v2 · J. M. DerKacy, C. Ashall, P. Hoeflich et al.2023 · 32 citationsarXiv
SN 2021fxy: Mid-Ultraviolet Flux Suppression is a Common Feature of Type Ia Supernovae2212.06195v1 · J. M. DerKacy, S. Paugh, E. Baron et al.2022 · 12 citationsarXiv
Carnegie Supernova Project-II: Near-infrared spectral diversity and template of Type Ia Supernovae2211.05998v2 · Jing Lu, Eric Y. Hsiao, Mark M. Phillips et al.2022 · 15 citationsarXiv
Near-Infrared and Optical Observations of Type Ic SN 2021krf: Luminous Late-time Emission and Dust Formation2211.00205v2 · Aravind P. Ravi, Jeonghee Rho, Sangwook Park et al.2022 · 9 citationsarXiv
A JWST Near- and Mid-Infrared Nebular Spectrum of the Type Ia Supernova 2021aefx2211.00038v2 · Lindsey A. Kwok, Saurabh W. Jha, Tea Temim et al.2022 · 37 citationsApJL, Volume 944 L3, 2023
Bump Morphology of the CMAGIC Diagram2210.06708v4 · L. Aldoroty, L. Wang, P. Hoeflich et al.2022 · 7 citationsThe Astrophysical Journal, 948:10 (15pp), 2023 May 1
Near-infrared and Optical Nebular-phase Spectra of Type Ia Supernovae SN 2013aa and SN 2017cbv in NGC 56432210.06993v2 · Sahana Kumar, Eric Y. Hsiao, Chris Ashall et al.2022 · 9 citationsarXiv
The Absolute Magnitudes of 1991T-like Supernovae2209.08031v1 · M.M.Phillips, C. Ashall, Christopher R. Burns et al.2022 · 23 citationsarXiv
Using 1991T/1999aa-like Type Ia Supernovae as Standardizable Candles2209.06301v1 · Jiawen Yang, Lifan Wang, Nicholas Suntzeff et al.2022 · 17 citationsarXiv
Testing the Homogeneity of Type Ia Supernovae in the Near-Infrared for Accurate Distance Estimations2207.04780v1 · T. E. Muller-Bravo, L. Galbany, E. Karamehmetoglu et al.2022 · 10 citationsA&A 665, A123 (2022)
A Speed Bump: SN 2021aefx Shows that Doppler Shift Alone can Explain Early-Excess Blue Flux in Some Type Ia Supernovae2205.00606v2 · C. Ashall, J. Lu, B. J. Shappee et al.2022 · 34 citationsarXiv
Type II supernovae from the Carnegie Supernova Project-I. III. Understanding SN II diversity through correlations between physical and observed properties2202.11220v1 · L. Martinez, J. P. Anderson, M. C. Bersten et al.2022 · 37 citationsA&A 660, A42 (2022)
Carnegie Supernova Project: kinky -band light-curves of Type Ia supernovae2112.03122v1 · P. J. Pessi, E. Y. Hsiao, G. Folatelli et al.2021 · 7 citationsarXiv
Type II supernovae from the Carnegie Supernova Project-I. I. Bolometric light curves of 74 SNe II using uBgVriYJH photometry2111.06519v1 · L. Martinez, M. C. Bersten, J. P. Anderson et al.2021 · 36 citationsA&A 660, A40 (2022)
Type II supernovae from the Carnegie Supernova Project-I. II. Physical parameter distributions from hydrodynamical modelling2111.06529v2 · L. Martinez, M. C. Bersten, J. P. Anderson et al.2021 · 69 citationsA&A 660, A41 (2022)
Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-Envelope Core-Collapse Supernovae2110.12083v1 · M. Shahbandeh, E. Y. Hsiao, C. Ashall et al.2021 · 50 citationsarXiv
A Tale of Two Type Ia Supernovae: The fast-declining siblings SNe 2015bo and 1997cn2109.14644v2 · W. B. Hoogendam, C. Ashall, L. Galbany et al.2021 · 19 citationsarXiv
Measuring an off-Center Detonation through Infrared Line Profiles: The peculiar Type Ia Supernova SN~2020qxp/ASASSN-20jq2109.03359v1 · P.Hoeflich, C. Ashall, S. Bose et al.2021 · 28 citationsarXiv
SN 2021csp -- the explosion of a stripped envelope star within a H and He-poor circumstellar medium2108.07278v1 · Morgan Fraser, Maximilian D. Stritzinger, Sean J. Brennan et al.2021 · 9 citationsarXivon Valency
ASASSN-15hy: an under-luminous, red 03fg-like type Ia supernova2107.08150v2 · J. Lu, C. Ashall, E. Y. Hsiao et al.2021 · 27 citationsarXiv
Carnegie Supernova Project: The First Homogeneous Sample of "Super-Chandrasekhar Mass"/2003fg-like Type Ia Supernova2106.12140v2 · C. Ashall, J. Lu, E. Y. Hsiao et al.2021 · 44 citationsarXiv
SN 2013ai: a link between hydrogen-rich and hydrogen-poor core-collapse supernovae2101.05424v1 · S. Davis, P.J. Pessi, M. Fraser et al.2021 · 9 citationsarXiv
A Spitzer survey of Deep Drilling Fields to be targeted by the Vera C. Rubin Observatory Legacy Survey of Space and Time2011.15030v1 · M. Lacy, J.A. Surace, D. Farrah et al.2020 · 39 citationsarXiv
The value of the Hubble-Lemaître constant queried by Type Ia Supernovae: A journey from the Calán-Tololo Project to the Carnegie Supernova Program2009.10279v2 · Mario Hamuy, R'egis Cartier, Carlos Contreras et al.2020 · 0 citationsarXiv
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