用Swift/UVOT、RATIR和SUBARU望远镜观测近180个伽马射线暴余辉的光学二维和三维基本面相关
The Optical Two and Three-Dimensional Fundamental Plane Correlations for Nearly 180 Gamma-Ray Burst Afterglows with Swift/UVOT, RATIR, and the SUBARU Telescope
摘要：
伽马射线暴（GRB）由于其全色性而成为一种迷人的现象。我们研究光学平台在伽玛射线暴余辉通过扩展搜索到档案数据。我们全面分析了所有已发表的具有已知红移和光学平台的伽玛暴，这些伽玛暴被许多地面望远镜观测到（例如，斯巴鲁望远镜，RATIR）在世界各地和几个天基天文台，如尼尔Gehrels斯威夫特天文台。我们拟合了500个光学光变曲线（LC），显示179个病例存在平台。这个样本比前一个样本（arXiv：2105.10717）大75%，是迄今为止最大的光学平台汇编。我们发现了3D基本平面的关系，在光学波长使用此样品。这种相关性在平台发射结束时的静止帧时间$T^{*}_{\rm opt}$、其光学光度$L_{\rm opt}$和光学瞬发发射中的峰值$L_{\rm peak, opt}$之间，因此类似于三维（3D）X射线基本平面关系（arXiv：1604.06840）。我们纠正我们的样本红移的演变和选择效应，发现这种相关性确实是固有的伽玛射线暴物理。我们研究了X射线和光学（$T^{*}_{\rm opt}$，$T^{*}_{\rm X}$）中的休息帧结束时间分布，并得出结论，只有当不考虑选择偏差时，平台才是无色的。我们还调查了3D光学相关性是否可能是光学GRB类之间的新判别式，并发现在校正演化后，与金样本平面相比，类之间没有显着的分离。
英文摘要：
Gamma-ray bursts (GRBs) are fascinating events due to their panchromatic nature. We study optical plateaus in GRB afterglows via an extended search into archival data. We comprehensively analyze all published GRBs with known redshifts and optical plateaus observed by many ground-based telescopes (e.g., Subaru Telescope, RATIR) around the world and several space-based observatories such as the Neil Gehrels Swift Observatory. We fit 500 optical light curves (LCs), showing the existence of the plateau in 179 cases. This sample is 75% larger than the previous one (arXiv:2105.10717), and it is the largest compilation so far of optical plateaus. We discover the 3D fundamental plane relation at optical wavelengths using this sample. This correlation is between the rest-frame time at the end of the plateau emission, $T^{*}_{\rm opt}$, its optical luminosity, $L_{\rm opt}$, and the peak in the optical prompt emission, $L_{\rm peak, opt}$, thus resembling the three-dimensional (3D) X-ray fundamental plane relation (arXiv:1604.06840). We correct our sample for redshift evolution and selection effects, discovering that this correlation is indeed intrinsic to GRB physics. We investigate the rest-frame end time distributions in X-rays and optical ($T^{*}_{\rm opt}$, $T^{*}_{\rm X}$), and conclude that the plateau is achromatic only when selection biases are not considered. We also investigate if the 3D optical correlation may be a new discriminant between optical GRB classes and find that there is no significant separation between the classes compared to the Gold sample plane after correcting for evolution.
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