SK
Sahana Kumar
astro-ph.HEastro-ph.SRastro-ph.GAastro-ph.COastro-ph.EP
On Valency
published · living versionsW_qhhkepcy·v1 · currentpublished
Early panchromatic spectra reveal helium in the thermonuclear supernova 2024kce
with Abigail Polin, Dillon Hasenour, Willem Hoogendam, Jing Lu +24
1 version
W_n4kpatfs·v1published
W_urke6j3k·v1published
Preprints & journals
62 papers in the corpus · 2015–2026A multiwavelength view of the nearby Calcium-Strong Transient SN 2025coe in the X-Ray, Near-Infrared, and Radio Wavebands2601.19018v2 · Sahana Kumar, Raphael Baer-Way, Aravind P. Ravi et al.2026 · 0 citationsThe Astrophysical Journal, July 2026, Volume 1005, Issue 1, id.98
JWST Spectroscopy of SN Ia 2022aaiq and 2024gy: Evidence for Enhanced Central Stable Ni Abundance and a Deflagration-to-Detonation Transition2510.09760v3 · Lindsey A. Kwok, Chang Liu, Saurabh W. Jha et al.2025 · 2 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
Departures from Standard Disk Predictions in Intensive Ground-Based Monitoring of Three AGN2508.08720v1 · Diego Gonzalez-Buitrago, Aaron J. Barth, Rick Edelson et al.2025 · 4 citationsarXiv
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
Ureteral Occlusion: Device Strategies, Approaches, and Results.40654537 · Treutler, Benjamin, Kumar, Sahana, Shallal, Christopher et al.2025 · 0 citationsAdvances in urology. 2025;2025:7843401
Photometry and Spectroscopy of SN 2024pxl: A Luminosity Link Among Type Iax Supernovae2505.02943v2 · Mridweeka Singh, Lindsey A. Kwok, Saurabh W. Jha et al.2025 · 1 citationarXiv
JWST and Ground-based Observations of the Type Iax Supernovae SN 2024pxl and SN 2024vjm: Evidence for Weak Deflagration Explosions2505.02944v2 · Lindsey A. Kwok, Mridweeka Singh, Saurabh W. Jha et al.2025 · 14 citationsThe Astrophysical Journal Letters, Volume 989, Issue 2, id.L33, 24 pp., August 2025
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)
Peaky Finders: Characterizing Double-Peaked Type IIb Supernovae in Large-Scale Live-Stream Photometric Surveys2503.03735v1 · Adrian Crawford, Tyler A. Pritchard, Maryam Modjaz et al.2025 · 8 citationsarXiv
A Multiwavelength Autopsy of the Interacting IIn Supernova 2020ywx: Tracing its Progenitor Mass-Loss History for 100 Years before Death2412.06914v2 · Raphael Baer-Way, Poonam Chandra, Maryam Modjaz et al.2024 · 0 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
Constraints on Triton atmospheric evolution from occultations: 1989-20222402.02476v1 · B. Sicardy, A. Tej, A. R. Gomes-Junior 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
Discovery and Follow-up of ASASSN-23bd (AT 2023clx): The Lowest Redshift and Least Luminous Tidal Disruption Event To Date2401.05490v2 · W. B. Hoogendam, J. T. Hinkle, B. J. Shappee et al.2024 · 14 citationsarXiv
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
Characterizing the Rapid Hydrogen Disappearance in SN2022crv: Evidence of a Continuum between Type Ib and IIb Supernova Properties2309.09433v2 · Yize Dong, Stefano Valenti, Chris Ashall et al.2023 · 16 citationsApJ 974 316 (2024)
Strong Carbon Features and a Red Early Color in the Underluminous Type Ia SN 2022xkq2309.10054v2 · Jeniveve Pearson, David J. Sand, Peter Lundqvist et al.2023 · 11 citationsarXiv
SN 2021gno: a Calcium-rich transient with double-peaked light curves2309.07800v1 · K. Ertini, G. Folatelli, L. Martinez et al.2023 · 13 citationsarXiv
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
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
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
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
SN 2016iyc: A Type IIb supernova arising from a low-mass progenitor2208.07377v2 · Amar Aryan, S. B. Pandey, WeiKang Zheng et al.2022 · 5 citationsMNRAS.tmp.2225A (2022)
Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV2208.02782v2 · A. Pastorello, G. Valerin, M. Fraser et al.2022 · 17 citationsA&A 671, A158 (2023)
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
The Lick AGN Monitoring Project 2016: Dynamical Modeling of Velocity-Resolved H\b{eta} Lags in Luminous Seyfert Galaxies2203.15000v1 · Lizvette Villafana, Peter R. Williams, Tommaso Treu et al.2022 · 36 citationsarXiv
The Lick Observatory Supernova Search follow-up program: photometry data release of 70 stripped-envelope supernovae2203.05596v1 · WeiKang Zheng, Benjamin E. Stahl, Thomas de Jaeger et al.2022 · 15 citationsarXiv
Nebular-Phase Spectra of Type Ia Supernovae from the Las Cumbres Observatory Global Supernova Project2201.07864v1 · M. L. Graham, T. D. Kennedy, S. Kumar et al.2022 · 15 citationsarXiv
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
The Lick AGN Monitoring Project 2016: Velocity-Resolved H{\beta} Lags in Luminous Seyfert Galaxies2111.14849v1 · Vivian U, Aaron J. Barth, H. Alexander Vogler et al.2021 · 62 citationsarXiv
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
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
Progenitor mass constraints for the type Ib intermediate-luminosity SN 2015ap and the highly extinguished SN 2016bau2105.05088v1 · Amar Aryan, S. B. Pandey, WeiKang Zheng et al.2021 · 15 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
Carnegie Supernova Project II: The slowest rising Type Ia supernova LSQ14fmg and clues to the origin of super-Chandrasekhar/03fg-like events2008.05614v1 · E. Y. Hsiao, P. Hoeflich, C. Ashall et al.2020 · 43 citationsarXiv
SN 2014ab: An Aspherical Type IIn Supernova with Low Polarization2007.12134v1 · Christopher Bilinski, Nathan Smith, G. Grant Williams et al.2020 · 11 citationsarXiv
Carnegie Supernova Project-II: A new method to photometrically identify sub-types of extreme Type Ia Supernovae2003.11121v3 · C. Ashall, J. Lu, C. Burns et al.2020 · 36 citationsarXiv
Variability and the size-luminosity relation of the intermediate mass AGN in NGC 43952002.08028v3 · Hojin Cho, Jong-Hak Woo, Edmund Hodges-Kluck et al.2020 · 18 citationsarXiv
Career total: 107 works. 62 are in this corpus.Showing the 50 most recent.
Profile built from the corpus for this byline.
Author records are still filling in while the Hub is in alpha. If this is your page, you'll be able to claim it soon. Spot a mistake? Tell us.