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

التفاصيل البيبلوغرافية
العنوان: VVV-WIT-12 and Its Fashionable Nebula: A 4 yr Long-period Young Stellar Object with a Light Echo?
المؤلفون: Roberto K. Saito, Bringfried Stecklum, Dante Minniti, Philip W. Lucas, Zhen Guo, Leigh C. Smith, Luciano Fraga, Felipe Navarete, Juan Carlos Beamín, Calum Morris
المصدر: The Astrophysical Journal Letters, Vol 958, Iss 1, p L1 (2023)
بيانات النشر: IOP Publishing, 2023.
سنة النشر: 2023
المجموعة: LCC:Astrophysics
مصطلحات موضوعية: Variable stars, Stellar oscillations, Galaxy stellar content, Sky surveys, Astrophysics, QB460-466
الوصف: We 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.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2041-8213
2041-8205
Relation: https://doaj.org/toc/2041-8205
DOI: 10.3847/2041-8213/ad07e6
URL الوصول: https://doaj.org/article/cbb3f3e81b7d47de9b02668b81f1e5f2
رقم الأكسشن: edsdoj.bb3f3e81b7d47de9b02668b81f1e5f2
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20418213
20418205
DOI:10.3847/2041-8213/ad07e6