ATClean: a novel method for detecting low-luminosity transients and application to pre-explosion counterparts from SN 2023ixf

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dc.catalogadoryvc
dc.contributor.authorRest, S.
dc.contributor.authorRest, A.
dc.contributor.authorKilpatrick, C. D.
dc.contributor.authorJencson, J. E.
dc.contributor.authorCoelln, S. von
dc.contributor.authorStrolger, L.
dc.contributor.authorSmartt, S.
dc.contributor.authorAnderson, J. P.
dc.contributor.authorClocchiatti García, Alejandro
dc.contributor.authorCoulter, D. A.
dc.contributor.authorDenneau, L.
dc.contributor.authorGómez, S.
dc.contributor.authorHeinze, A.
dc.contributor.authorRidden-Harper, R.
dc.contributor.authorSmith, K. W.
dc.contributor.authorStalder, B.
dc.contributor.authorTonry, J. l.
dc.contributor.authorWang, Q.
dc.contributor.authorZenati, Y.
dc.date.accessioned2024-08-19T22:47:47Z
dc.date.available2024-08-19T22:47:47Z
dc.date.issued2024
dc.description.abstractIn an effort to search for faint sources of emission over arbitrary timescales, we present a novel method for analyzing forced photometry light curves in difference imaging from optical surveys. Our method “ATLAS Clean” or ATClean, utilizes the reported fluxes, uncertainties, and fits to the point-spread function from difference images to quantify the statistical significance of individual measurements. We apply this method to control light curves across the image to determine whether any source of flux is present in the data for a range of specific timescales. From ATLAS o-band imaging at the site of the Type II supernova (SN) 2023ixf in M101 from 2015–2023, we show that this method accurately reproduces the 3σ flux limits produced from other, more computationally expensive methods. We derive limits for emission on timescales of 5 days and 80-300 days at the site of SN 2023ixf, which are 19.8 and 21.3 mag, respectively. The latter limits rule out variability for inextinguished red supergiants (RSG) with initial masses >22 M⊙, comparable to the most luminous predictions for the SN 2023ixf progenitor system. We also compare our limits to short timescale outbursts, similar to those expected for Type IIn SN progenitor stars or the Type II SN 2020tlf, and rule out outburst ejecta masses of >0.021 M⊙, much lower than the inferred mass of circumstellar matter around SN 2023ixf in the literature. In the future, these methods can be applied to any forced point-spread function photometry on difference imaging from other surveys, such as Rubin optical imaging.
dc.fechaingreso.objetodigital2024-08-19
dc.format.extent24 páginas
dc.fuente.origenORCID
dc.identifier.doi10.48550/arXiv.2405.03747
dc.identifier.urihttps://doi.org/10.48550/arXiv.2405.03747
dc.identifier.urihttps://arxiv.org/html/2405.03747v1#abstract
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/87523
dc.information.autorucInstituto de Física; Clocchiatti Garcia Alejandro; 0000-0003-3068-4258; 100500
dc.language.isoen
dc.nota.accesocontenido completo
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 Atribución Internacional 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleATClean: a novel method for detecting low-luminosity transients and application to pre-explosion counterparts from SN 2023ixf
dc.typepreprint
sipa.codpersvinculados100500
sipa.trazabilidadORCID;2024-08-19
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