SUNBIRD项目的GeMS/GSAOI的第一个结果：超新星被红光探测揭开
First results from GeMS/GSAOI for project SUNBIRD: Supernovae UNmasked By Infra-Red Detection
摘要：
核心坍缩超新星（CCSN）的发生率存在很大的不确定性，因为许多CCSNe在明亮的背景辐射和显著的尘埃消光区域爆炸仍然没有被观测到。这种不足在亮红外星系（LIRGs）中尤为突出，这些星系具有高恒星形成率（以及CCSN），并且拥有明亮而拥挤的核区域，在这些区域中，大的反射率和降低的搜索检测效率可能导致CCSNe的显着部分未被发现。我们目前的第一个结果的项目SUNBIRD（超新星揭开面纱的红色探测），在那里我们的目标是发现CCSNe，否则将保持隐藏在复杂的核区域的LIRGs，并以这种方式改善的约束的一部分，错过了光学看到有限的调查。我们在近红外2.15 μm $K_s$波段进行观测，与光学波段相比，该波段受尘埃消光的影响较小，使用Gemini South上的多共轭自适应光学成像仪GeMS/GSAOI，使我们能够实现空间分辨率，使我们能够接近核区域进行探测。在我们的试点计划和随后的第一个整年，我们已经发现了三个CCSNe和一个候选人，预计核偏移量小到200 pc。当与在近红外和光学中发现的LIRG CCSNe的总样本相比时，我们表明我们的方法在核区域中发现CCSNe是非常有效的，并且我们得出结论，由于尘埃遮蔽和空间分辨率差，大多数在LIRG中爆炸的CCSNe没有被检测到。
英文摘要：
Core collapse supernova (CCSN) rates suffer from large uncertainties as many CCSNe exploding in regions of bright background emission and significant dust extinction remain unobserved. Such a shortfall is particularly prominent in luminous infrared galaxies (LIRGs), which have high star formation (and thus CCSN) rates and host bright and crowded nuclear regions, where large extinctions and reduced search detection efficiency likely lead to a significant fraction of CCSNe remaining undiscovered. We present the first results of project SUNBIRD (Supernovae UNmasked By Infra-Red Detection), where we aim to uncover CCSNe that otherwise would remain hidden in the complex nuclear regions of LIRGs, and in this way improve the constraints on the fraction that is missed by optical seeing-limited surveys. We observe in the near-infrared 2.15 μm $K_s$-band, which is less affected by dust extinction compared to the optical, using the multi-conjugate adaptive optics imager GeMS/GSAOI on Gemini South, allowing us to achieve a spatial resolution that lets us probe close in to the nuclear regions. During our pilot program and subsequent first full year we have discovered three CCSNe and one candidate with projected nuclear offsets as small as 200 pc. When compared to the total sample of LIRG CCSNe discovered in the near-IR and optical, we show that our method is singularly effective in uncovering CCSNe in nuclear regions and we conclude that the majority of CCSNe exploding in LIRGs are not detected as a result of dust obscuration and poor spatial resolution.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
