偏心HAT-P-2、WASP-14和XO-3行星系统的经济型阶梯光栅spectroscopy，配备亚米级望远镜
Affordable echelle spectroscopy of the eccentric HAT-P-2, WASP-14 and XO-3 planetary systems with a sub-meter-class telescope
摘要：
最近在斯洛伐克的Stará Lesná天文台的0.6米望远镜上安装了一台新的现成的低成本中阶梯光栅摄谱仪。本文详细介绍了用该仪器观测到的前三个凌日行星系统HAT-P-2、WASP-14和XO-3的视向速度分析。此外，我们比较了我们的数据与RV数据实现与其他亚米级，米级和两米级望远镜的中阶梯光谱仪在其精度。最后，我们调查我们的RV数据建模轨道参数的适用性。
英文摘要：
A new off-shelf low-cost echelle spectrograph was installed recently on the 0.6m telescope at the Stará Lesná Observatory (Slovakia). In this paper we describe in details the radial velocity (RV) analysis of the first three transiting planetary systems, HAT-P-2, WASP-14 and XO-3, observed with this instrument. Furthermore, we compare our data with the RV data achieved with echelle spectrographs of other sub-meter-, meter- and two-meter-class telescopes in terms of their precision. Finally, we investigate the applicability of our RV data for modeling orbital parameters.
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