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arXiv 2305.03071astro-ph.HEastro-ph.SR
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SN 2023bee的早期光变曲线:以Apian方法约束Ia型超新星前身星

The Early Light Curve of SN 2023bee: Constraining Type Ia Supernova Progenitors the Apian Way

Griffin Hosseinzadeh, David J. Sand, Sumit K. Sarbadhicary, Stuart D. Ryder, Saurabh W. Jha, Yize Dong, K. Azalee Bostroem, Jennifer E. Andrews, Emily Hoang, Da… 展开作者

Griffin Hosseinzadeh, David J. Sand, Sumit K. Sarbadhicary, Stuart D. Ryder, Saurabh W. Jha, Yize Dong, K. Azalee Bostroem, Jennifer E. Andrews, Emily Hoang, Daryl Janzen, Jacob E. Jencson, Michael Lundquist, Nicolas E. Meza Retamal, Jeniveve Pearson, Manisha Shrestha, Stefano Valenti, Samuel Wyatt, Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Craig Pellegrino, Giacomo Terreran, Muzoun Alzaabi, Elizabeth M. Green, Jessica L. Gurney, Peter A. Milne, Kaycee I. Ridenhour, Nathan Smith, Paulina Soto Robles, Lindsey A. Kwok, Michaela Schwab, Mariusz Gromadzki, David A. H. Buckley, Koichi Itagaki, Daichi Hiramatsu, Laura Chomiuk, Peter Lundqvist, Joshua Haislip, Vladimir Kouprianov, Daniel E. Reichart

AI总结:

本研究通过SN 2023bee的极早期观测,发现其早期多波段辐射超出符合主序伴星冲击喷发物的Kasen模型,排除红巨星伴星可能,为约束Ia型超新星前身星提供了关键观测证据。

摘要:

我们展示了Ia型超新星(SN Ia)2023bee的极早期测光与光谱观测数据,观测始于爆炸后约8小时,数据显示爆炸最初数天内,光学波段与最近的紫外波段(U和UVW1)存在显著的辐射超出。该数据集使我们得以探究爆炸白矮星的伴星性质,以及引发其点火的条件。我们发现观测结果与Kasen模型高度吻合,该模型中一颗主序伴星在与喷发物擦肩而过时,会通过冲击作用“刺击”喷发物。双爆轰模型、表层附近的放射性镍壳模型、与星周物质相互作用模型,以及脉动延迟爆轰模型,均无法与我们的光变曲线良好匹配。我们还在最早的光谱中观测到以碳吸收为形式的未燃烧物质特征。我们的射电观测未探测到目标,由此对假定伴星的质量损失率设定了上限,排除了红巨星作为伴星的可能,但支持主序星作为伴星的情形。我们结合文献中其他类似的Ia型超新星,对研究结果展开了讨论。

英文摘要:

We present very early photometric and spectroscopic observations of the Type Ia supernova (SN Ia) 2023bee, starting about 8 hr after the explosion, which reveal a strong excess in the optical and nearest UV (U and UVW1) bands during the first several days of explosion. This data set allows us to probe the nature of the binary companion of the exploding white dwarf and the conditions leading to its ignition. We find a good match to the Kasen model in which a main-sequence companion star stings the ejecta with a shock as they buzz past. Models of double detonations, shells of radioactive nickel near the surface, interaction with circumstellar material, and pulsational delayed detonations do not provide good matches to our light curves. We also observe signatures of unburned material, in the form of carbon absorption, in our earliest spectra. Our radio nondetections place a limit on the mass-loss rate from the putative companion that rules out a red giant but allows a main-sequence star. We discuss our results in the context of other similar SNe Ia in the literature.

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。

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