VVV-WIT-12 and Its Fashionable Nebula: A 4 yr Long-period Young Stellar Object with a Light Echo?

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dc.contributor.authorSaito, Roberto K.
dc.contributor.authorStecklum, Bringfried
dc.contributor.authorMinniti, Dante
dc.contributor.authorLucas, Philip W.
dc.contributor.authorGuo, Zhen
dc.contributor.authorSmith, Leigh C.
dc.contributor.authorFraga, Luciano
dc.contributor.authorNavarete, Felipe
dc.contributor.authorBeamín, Juan Carlos
dc.contributor.authorMorris, Calum
dc.date.accessioned2024-06-06T16:10:06Z
dc.date.available2024-06-06T16:10:06Z
dc.date.issued2023-11-01
dc.descriptionIndexación: Scopus.
dc.description.abstractWe report the serendipitous discovery of VVV-WIT-12, an unusual variable source that seems to induce variability in its surrounding nebula. The source belongs to the rare objects that we call WITs (short for What Is This?) discovered within the VISTA Variables in the Vía Láctea (VVV) survey. VVV-WIT-12 was discovered during a pilot search for light echoes from distant supernovae in the Milky Way using the near-IR images of the VVV survey. This source has an extremely red spectral energy distribution, consistent with a very reddened (A V ∼ 100 mag) long-period variable star (P ∼ 1525 days). Furthermore, it is enshrouded in a nebula that changes brightness and color with time, apparently in sync with the central source variations. The near-IR light curve and complementary follow-up spectroscopy observations are consistent with a variable young stellar object illuminating its surrounding nebula. In this case the source periodic variation along the cycles produces an unprecedented light echo in the different regions of the nebula.
dc.description.urihttps://www-scopus-com.recursosbiblioteca.unab.cl/record/display.uri?eid=2-s2.0-85178061023&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=501666a2266530eaaf840a7fbb9d4075&sot=aff&sdt=cl&cluster=scofreetoread%2c%22all%22%2ct&sl=34&s=AF-ID%2860002636%29+AND+SUBJAREA%28PHYS%29&relpos=127&citeCnt=0&searchTerm=
dc.identifier.citationAstrophysical Journal Letters Open Access Volume 958, Issue 11 November 2023 Article number L1
dc.identifier.doi10.3847/2041-8213/ad07e6
dc.identifier.issn20418205
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/57402
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.rights.licenseCC BY 4.0 ATTRIBUTION 4.0 INTERNATIONAL
dc.subjectGalaxy Bulges
dc.subjectMetallicity
dc.subjectMilky Way
dc.titleVVV-WIT-12 and Its Fashionable Nebula: A 4 yr Long-period Young Stellar Object with a Light Echo?
dc.typeArtículo
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