KB
K. A. Bostroem
astro-ph.HEastro-ph.SRastro-ph.GAastro-ph.IMastro-ph.COgr-qchep-ph
On Valency
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The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
with The Astropy Collaboration, A. M. Price-Whelan, B. M. Sipőcz, H. M. Günther +132
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Preprints & journals
153 papers in the corpus · 2013–2026The diversity of late-time interaction in Type II supernovae2610.29962v1 · Luc Dessart, Wynn V. Jacobson-Gal'an, K. Azalee Bostroem2026 · 0 citationsarXivon Valency
Nearby Supernova Science in the Era of High Cadence, Deep Time Domain Surveys2609.38304v1 · David J. Sand, Bhagya Subrayan, Conor L. Ransome et al.2026 · 0 citationsarXiv
Early NIR echo and the time variable mass loss history of Type IIn SN 2024kgi2609.25233v1 · Naveen Dukiya, Kuntal Misra, Andrea Pastorello et al.2026 · 0 citationsarXiv
Aarmed with Data: Bumps, Outflows, and Disk-like Emission in TDE 2025aarm2609.09725v2 · Aysha Aamer, Kate D. Alexander, Charlotte R. Angus et al.2026 · 0 citationsarXiv
SN 2019cqc: A Hydrogen-rich Superluminous Supernova Showing Electron-Scattering Signatures2608.30309v1 · Dinesh Hebbar, Rupak Roy, Matt Nicholl et al.2026 · 0 citationsarXiv
A JWST/MIRI Study of Dust in a Sample of Normal Type IIP Core Collapse Supernovae2608.16979v1 · Bhagya M. Subrayan, David J. Sand, Olivia Culbert et al.2026 · 0 citationsarXiv
No Evidence for Nearby Circumstellar Material in the Type Ia Supernova 2025rbs2608.13655v1 · Aravind P. Ravi, Griffin Hosseinzadeh, Stefano Valenti et al.2026 · 0 citationsarXiv
JWST Spectroscopy of Type Ia Supernova 2025rbs from Maximum Light to the Nebular Phase2608.10451v1 · Lindsey A. Kwok, St'ephane Blondin, Adam A. Miller et al.2026 · 0 citationsarXiv
SN 2022xus: bridging the gap between Type IIP and IIL supernovae2607.25323v1 · Monalisa Dubey, Kuntal Misra, Naveen Dukiya et al.2026 · 0 citationsarXiv
Ultraviolet to Infrared Spectroscopy of the Type Ibn SN 2023tsz Suggests a Lower-mass Progenitor2607.15342v1 · Sergiy S. Vasylyev, Griffin Hosseinzadeh, Luc Dessart et al.2026 · 0 citationsarXiv
Evidence for Asymmetric Ejecta and Circumstellar Material in SN 2023ixf Inferred from Extensive Nebular-phase Observations2607.02859v1 · Brian Hsu, Nathan Smith, K. Azalee Bostroem et al.2026 · 0 citationsarXiv
SN 2020bij and a Possible Slow-Rise High-Velocity Subclass of Type IIP Supernovae2607.02253v1 · Sondos Mohsen-Tanev, Iair Arcavi, Shahar Bracha et al.2026 · 0 citationsarXiv
JWST Observations of Calcium-Strong Transients: I. Complex Nebular He Emission in SN 2024uj2607.00111v1 · Saarah Hall, Lindsey A. Kwok, Aravind P. Ravi et al.2026 · 0 citationsarXiv
SN 2023rve: A Type II Supernova with No Nebular Oxygen2606.30979v3 · Melissa Rosowsky, Stefano Valenti, Aravind P. Ravi et al.2026 · 0 citationsarXiv
JWST observations of SN 2024abup: First Detection of CO in a broad-lined Type Ic Supernova and Constraints on r-process Nucleosynthesis2606.28561v1 · Manisha Shrestha, Lindsey A. Kwok, David J. Sand et al.2026 · 0 citationsarXiv
First Results from the LSST Shadow Survey: The Restless Luminous Blue Variable AT2017des in the Virgo-Cluster Galaxy, NGC45322606.23784v1 · Conor L. Ransome, Bhagya M. Subrayan, David J. Sand et al.2026 · 0 citationsarXiv
The pair-instability origin of supernova 2023vbw2605.16487v1 · Daichi Hiramatsu, Edo Berger, Daichi Tsuna et al.2026 · 0 citationsarXiv
SN2023ixf: ultraviolet-to-infrared radiative-transfer modeling of the nebular-phase evolution until 1000 days2605.14081v1 · Luc Dessart, Wynn V. Jacobson-Galan, K. Azalee Bostroem et al.2026 · 0 citationsarXiv
Early interaction signatures and an extended plateau phase in Type II SN 2020aze2605.06313v1 · B. Ailawadhi, R. Dastidar, K. Misra et al.2026 · 0 citationsarXiv
The Eye of Sauron in SN 2025ngs: a Short-plateau Cousin of SN 1998S with Evidence for a Ring-like Circumstellar Medium2605.05380v1 · Conor L. Ransome, David J. Sand, K. Azalee Bostroem et al.2026 · 0 citationsarXiv
JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova2604.09777v2 · Colin W. Macrie, Conor Larison, Huei Sears et al.2026 · 0 citations2026 ApJ 1009 241
SN2023ixf: Radiative-transfer modeling of the photospheric phase evolution from the ultraviolet to the infrared2604.05145v1 · Luc Dessart, Wynn V. Jacobson-Galan, K. Azalee Bostroem et al.2026 · 0 citationsarXiv
Search For a Counterpart to the Subsolar Mass Gravitational Wave Candidate S251112cm2603.17009v2 · Nicholas Vieira, Noah Franz, Bhagya Subrayan et al.2026 · 1 citationarXiv
Lense-Thirring precessing magnetar engine drives a superluminous supernova.41814026 · Farah, Joseph R, Prust, Logan J, Howell, D Andrew et al.2026 · 7 citationsNature. 2026;651(8105):321-325
The extremely low-luminosity Type Iax SNe 2022ywf and 2023zgx2602.23175v1 · Barnab'as Barna, Dominik B'anhidi, Tam'as Szalai et al.2026 · 0 citationsA&A 710, A72 (2026)
SN 2024abvb: a Type Ibn/Icn supernova with evidence of helium and an extreme offset from its host galaxy2602.20775v1 · Callum Aster, Cosimo Inserra, Andrea Pastorello et al.2026 · 3 citationsarXiv
A Faint Progenitor System for the Faint Supernova 2024vjm2602.09096v2 · Erez A. Zimmerman, Avishay Gal-Yam, Paul J. Groot et al.2026 · 0 citationsarXiv
An infrared echo from a circumstellar disk in the hydrogen- and helium-poor SN 2024aecx2602.02691v2 · Samaporn Tinyanont, Kittipong Wangnok, Jennifer E. Andrews et al.2026 · 2 citationsarXiv
A 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
SN 2023zcu: A Type IIP SN with Early Flash Features2601.14830v1 · Monalisa Dubey, Kuntal Misra, G'eza Csornyei et al.2026 · 1 citationarXiv
A Study of Two Type IIb Supernovae: SNe 2008aq and 2019gaf2601.07450v1 · Mridweeka Singh, Devendra K. Sahu, Raya Dastidar et al.2026 · 0 citationsarXiv
SN 2024abfl: A Flat-Plateau, Low-Luminosity Type IIP Supernova with Early CSM Interaction2601.02638v1 · Madison Gerard, Jennifer E. Andrews, Geoffrey C. Clayton et al.2026 · 0 citationsarXiv
The Double-Peaked Calcium-Strong SN 2025coe: Progenitor Constraints from Early Interaction and Ejecta Asymmetries2601.00415v2 · Aravind P. Ravi, Sahana Kumar, Raphael Baer-Way et al.2026 · 2 citationsarXiv
SN 2024afav: A Superluminous Supernova with Multiple Light Curve Bumps and Spectroscopic Signatures of Circumstellar Interaction2512.06067v1 · Harsh Kumar, Peter K. Blanchard, Edo Berger et al.2025 · 4 citationsarXiv
SN 2021ukt: A Transitional Supernova with a Short Plateau and Persistent Interaction2511.22923v1 · Neil R. Pichay, Sergiy S. Vasylyev, Audrey M. Liddle et al.2025 · 0 citationsarXiv
Spectral Diversity in Type Ibn Supernovae and the Large Host Offset of SN2024acyl2511.03926v2 · Yize Dong, V. Ashley Villar, Anya Nugent et al.2025 · 0 citationsarXiv
SN 2024iss: A Double-peaked Type IIb Supernova with Evidence of Circumstellar Interaction2510.22997v1 · Liyang Chen, Xiaofeng Wang, Qinyu Wu et al.2025 · 2 citationsA&A 710, A33 (2026)
Optimizing Kilonova Searches: A Case Study of the Type IIb SN 2025ulz in the Localization Volume of the Low-Significance Gravitational Wave Event S250818k2510.17104v2 · Noah Franz, Bhagya Subrayan, Charles D. Kilpatrick et al.2025 · 10 citationsarXiv
SN 2021tsz: A luminous, short photospheric phase Type II supernova in a low-metallicity host2510.05426v1 · R. Dastidar, G. Pignata, N. Dukiya et al.2025 · 0 citationsA&A 703, A224 (2025)
When IIb Ceases To Be: Bridging the Gap Between IIb and Short-plateau Supernovae2509.12470v1 · Joseph R. Farah, D. Andrew Howell, Daichi Hiramatsu et al.2025 · 2 citationsarXiv
SN 2022xlp: The second-known well-observed, intermediate-luminosity Iax supernova2509.07717v1 · D. B'anhidi, B. Barna, T. Szalai et al.2025 · 6 citationsA&A 703, A64 (2025)
SN 2019hnl: A Type IIP Supernova with a Partially Stripped, Low Mass Progenitor2509.03732v1 · Aidan Martas, Stefano Valenti, Aravind P. Ravi et al.2025 · 0 citationsarXiv
HST Deep Upper Limits Rule Out a Surviving Massive Binary Companion to the Type Ic Supernova 2012fh2508.21027v2 · Benjamin F. Williams, Emmanouil Zapartas, Ori D. Fox et al.2025 · 0 citationsarXiv
Tip of the Red Giant Branch Distances to NGC 1316, NGC 1380, NGC 1404, & NGC 4457: A Pilot Study of a Parallel Distance Ladder Using Type Ia Supernovae in Early-Type Host Galaxies2508.20023v2 · Max J. B. Newman, Conor Larison, Saurabh W. Jha et al.2025 · 0 citationsarXiv
A Panchromatic View of Late-time Shock Power in the Type II Supernova 2023ixf2508.11747v3 · W. V. Jacobson-Gal'an, L. Dessart, C. D. Kilpatrick et al.2025 · 12 citationsarXiv
Late-time Hubble Space Telescope Ultraviolet Spectra of SN 2023ixf and SN 2024ggi Show Ongoing Interaction with Circumstellar Material2508.11756v1 · K. Azalee Bostroem, Stefano Valenti, David J. Sand et al.2025 · 1 citationarXiv
Automated Spectroscopic Wavelength Calibration using Dynamic Time Warping2508.05862v1 · James R. A. Davenport, Francisca Chabour Barra, K. Azalee Bostroem et al.2025 · 0 citationsarXiv
Enabling Early Transient Discovery in LSST via Difference Imaging with DECam2507.22156v4 · Yize Dong, Kaylee de Soto, V. Ashley Villar et al.2025 · 2 citationsarXiv
Near-Infrared Spectroscopy and Detection of Carbon Monoxide in the Type II Supernova SN 2023ixf2507.11877v2 · Seong Hyun Park, Jeonghee Rho, Sung-Chul Yoon et al.2025 · 8 citationsA&A 703, A227 (2025)
Mid-Infrared Dust Evolution and Late-time Circumstellar Medium Interaction in SN 2017eaw2507.00125v2 · Jeniveve Pearson, Bhagya Subrayan, David J. Sand et al.2025 · 5 citationsarXiv
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