SN 2024dy: Dust formation in a long-lived Type IIn supernova and constraints on the dust mass

arXiv:2606.18585 · astro-ph.HE, astro-ph.SR · Submitted 2026-06-17 · Read on arXiv

Sota Goto, Masayuki Yamanaka, Koji S. Kawabata, Masaomi Tanaka, Avinash Singh, Devendra K. Sahu, Tatsuya Nakaoka, Anjasha Gangopadhyay, Takahiro Nagayama, Naveen Dukiya, Monalisa Dubey, Kuntal Misra, Bhavya Ailawadhi

astro-ph.HE, astro-ph.SR

Submitted: 2026-06-17

Comments: Accepted version for publication in the ApJ

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Calibration — 4× in this paper · explained in 7 episodes
• Core — 3× in this paper · explained in 2 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Zwicky Transient Facility — 2× in this paper
• Amanogawa Galaxy Astronomy Research Center — 1× in this paper
• Aperture — 1× in this paper · explained in 1 episode
• Aperture Photometry — 1× in this paper · explained in 1 episode
• Devasthal Optical Telescope — 1× in this paper
• Gravitational-wave Optical Transient Observer — 1× in this paper
• Himalayan Chandra Telescope — 1× in this paper
• alpha — 1× in this paper · explained in 1 episode

Sources

• The Pan-STARRS1 Surveys
• Type IIn Supernovae. I. Uniform Light-curve Characterization and a Bimodality in the Radiated Energy Distribution
• The bright long-lived Type II SN 2021irp powered by aspherical circumstellar material interaction (I): Revealing the energy source with photometry and spectroscopy

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