Preprint

From Light to Sound: Spectroscopic Evolution & Sonification of the flaring Nova V612 Scuti

Pragati AcharyaDepartment of Physics and Astronomy , Texas Tech University , Lubbock , TX 79409 , USAE. AydiDepartment of Physics and Astronomy , Texas Tech University , Lubbock , TX 79409 , USAKirill V. SokolovskyDepartment of Physics and Astronomy , Texas Tech University , Lubbock , TX 79409 , USABrian D. MetzgerCenter for Computational Astrophysics , Flatiron Institute , 162 5th Ave , New York , NY 10010 , USALaura ChomiukCenter for Data Intensive and Time Domain Astronomy , Department of Physics and Astronomy , Michigan State University , East Lansing , MI 48824 , USAPeter CraigCenter for Data Intensive and Time Domain Astronomy , Department of Physics and Astronomy , Michigan State University , East Lansing , MI 48824 , USALuca IzzoINAF-Osservatorio Astronomico di Capodimonte , Salita Moiariello 16 , 80131 , Napoli , ItalyJustin D. LinfordNational Radio Astronomy Observatory , P.O. Box O , Socorro , NM 87801 , USAShazrene MohamedDepartment of Astronomy , University of Virginia , 530 McCormick Road , Charlottesville , VA 22904 , USAI. MolinaCenter for Data Intensive and Time Domain Astronomy , Department of Physics and Astronomy , Michigan State University , East Lansing , MI 48824 , USAKoji MukaiDepartment of Physics , University of Maryland , Baltimore County , 1000 Hilltop Circle , Baltimore , MD 21250 , USAKen J. ShenDepartment of Astronomy and Theoretical Astrophysics Center , University of California , Berkeley , CA 94720 , USJ. L. SokoloskiDepartment of Physics and Columbia Astrophysics Laboratory , Columbia University , New York , NY 10027 , USAPaul LuckasInternational Centre for Radio Astronomy Research , The University of Western Australia , 35 Stirling Hwy Crawley , Western Australia 6009 , AustraliaT. BohlsenAstronomical Ring for Access to Spectroscopy 17 Observatoire de la Tourbière 45 , Chemin du Lac 38690 CHABONS , FranceO. GardeVirginia Institute for Theoretical Astronomy , University of Virginia , Charlottesville , VA 22904 , USAJoan G. FloPaolo BellavistaDept. Computer Science and Engineering (DISI) , University of Bologna , Viale del Risorgimento , 2 -40136 Bologna - Italy 21 Via San Sisto , 20 67100U. SollecchiaF. SimsDesert Celestial Observatory , 5900 E Bell St. Apache Junction , Arizona 85119 , USA

2026

ABI

Annotatsiya

We present photometric and spectroscopic observations of the 2017 Galactic nova V612 Sct, whose optical evolution was marked by multiple unusually large maxima. The eruption included two prominent flares lasting around a month each and reaching amplitudes of about 2.5 mag, followed by a series of smaller flares. Extensive spectroscopic monitoring reveals a striking pattern: with each flare, new absorption systems emerge at progressively higher velocities. This behavior, also seen in other flaring novae, provides evidence for repeated episodes of mass ejection or outflow at increasing velocities. V612 Sct also alternated between Fe II and He/N spectral phases during different stages of the eruption, establishing a clear connection between the photometric flares and major spectral transitions. We present two-dimensional dynamic spectra that directly trace the appearance of new absorption features contemporaneous with the light-curve flares. We also introduce a sonification of the spectroscopic sequence, offering an alternative representation of the temporal evolution of the eruption. These results support a picture in which repeated ejection episodes and shock formation play a central role in powering the multiple maxima observed in flaring novae.

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