论文标题
使用Planck/LFI 2018数据发布的修订的行星亮度温度
Revised planet brightness temperatures using the Planck/LFI 2018 data release
论文作者
论文摘要
我们根据Planck/LFI于2009--2013在30、44和70 GHz进行的2009--2013进行的测量值介绍了木星，土星，天王星和海王星的亮度温度的新估计，并于2018年发布给公众。这项工作扩展了2013年和2015年和2015年Planck/lfanck/lfciber calibratibration Calibratibal papers，the the calibration papers，对数据进行了数据范围。普朗克在名义任务中观察到每个星球最多八次。我们从22个LFI辐射仪中处理了按时的数据，以得出每个行星和过境的行星天线温度。我们考虑了光束形状，辐射计带通路和几种系统效应。我们将我们的结果与WMAP，Planck/HFI观察结果以及行星微波发射率的现有数据和模型的结果进行了比较。对于木星，我们以30、44和70 GHz的形式获得TB = 144.9、159.8、170.5 K（1 sigma时+/- 0.2 k，使用雷利 - 吉恩斯量表的温度分别表示，或同等地表达了频带平均温度tbba = 144.7 $ 160.3，171.3，171.3，171.3，171.2 k，并与之相同。相对于模型，在30 GHz时有轻微的过量被解释为同步加速器发射的效果。我们的土星措施与环TB = 9.2 +/- 1.4，12.6 +/- 2.3，16.2 +/- 0.8 K的结果一致，而对于光盘，我们获得了TB = 140.0 +/- 1.4，1.4，147.2 +/- 1.2，1.2，1.2，150.2 +/- 0.4 k，或0.4 k，或等效于TBBA = 139.7，147，147。天王星（tb = 152 +/- 6，6，145 +/- 3，132.0 +/- 2 k，或tbba = 152，145，133 k和neptune tb = 154 +/- 11，148 +/- 9，9，9，9，128 +/- 3 k，或tbba = 154，149，149，128 k）与Wmap的同意和先前的数据同意。
We present new estimates of the brightness temperatures of Jupiter, Saturn, Uranus, and Neptune based on the measurements carried in 2009--2013 by PLANCK/LFI at 30, 44, and 70 GHz and released to the public in 2018. This work extends the results presented in the 2013 and 2015 PLANCK/LFI Calibration Papers, based on the data acquired in 2009--2011. PLANCK observed each planet up to eight times during the nominal mission. We processed time-ordered data from the 22 LFI radiometers to derive planet antenna temperatures for each planet and transit. We accounted for the beam shape, radiometer bandpasses, and several systematic effects. We compared our results with the results from the ninth year of WMAP, PLANCK/HFI observations, and existing data and models for planetary microwave emissivity. For Jupiter, we obtain Tb = 144.9, 159.8, 170.5 K (+/- 0.2 K at 1 sigma, with temperatures expressed using the Rayleigh-Jeans scale) at 30, 44 and 70 GHz, respectively, or equivalently a band averaged Planck temperature TbBA=144.7$, 160.3, 171.2 K in good agreement with WMAP and existing models. A slight excess at 30 GHz with respect to models is interpreted as an effect of synchrotron emission. Our measures for Saturn agree with the results from WMAP for rings Tb = 9.2 +/- 1.4, 12.6 +/- 2.3, 16.2 +/- 0.8 K, while for the disc we obtain Tb = 140.0 +/- 1.4, 147.2 +/- 1.2, 150.2 +/- 0.4 K, or equivalently a TbBA=139.7, 147.8, 151.0 K. Our measures for Uranus (Tb = 152 +/- 6, 145 +/- 3, 132.0 +/- 2 K, or TbBA=152, 145, 133 K and Neptune Tb = 154 +/- 11, 148 +/- 9, 128 +/- 3 K, or TbBA=154 , 149, 128 K) agree closely with WMAP and previous data in literature.
