论文标题
乳糖与温暖的土星伴侣发现的热速度的径向速度确认
Radial velocity confirmation of a hot super-Neptune discovered by TESS with a warm Saturn-mass companion
论文作者
论文摘要
我们报告了行星系统TOI-1288的发现和确认。这个晚期的G矮人拥有两个行星：TOI-1288 B和TOI-1288 c。我们将苔丝太空传播和地面的过境光度法与HARPS-N和雇用高精度多普勒测量值相结合，我们用来限制系统中两个行星的质量和行星b的半径。 TOI-1288~b has a period of $2.699835^{+0.000004}_{-0.000003}$ d, a radius of $5.24 \pm 0.09$ R$_\oplus$, and a mass of $42 \pm 3$ M$_\oplus$, making this planet a hot transiting super-Neptune situated right in the Neptunian desert.这个沙漠是指在短时间轨道上很少海王星大小的行星。我们对TOI-1288的2。4年的多普勒监测显示，土星质量的行星存在于中等偏心的轨道上（$ 0.13^{+0.07} _ { - 0.09} $），最低质量为$ 84 \ PM 7 $ M $ _ $ _ \ oplus $和$ 443^^$ 443^^^}价值苔丝数据的5个扇区并不能涵盖我们预期的TOI-1288 C中期时间，并且我们没有在这些行业中检测到该星球的过境。
We report the discovery and confirmation of the planetary system TOI-1288. This late G dwarf harbours two planets: TOI-1288 b and TOI-1288 c. We combine TESS space-borne and ground-based transit photometry with HARPS-N and HIRES high-precision Doppler measurements, which we use to constrain the masses of both planets in the system and the radius of planet b. TOI-1288~b has a period of $2.699835^{+0.000004}_{-0.000003}$ d, a radius of $5.24 \pm 0.09$ R$_\oplus$, and a mass of $42 \pm 3$ M$_\oplus$, making this planet a hot transiting super-Neptune situated right in the Neptunian desert. This desert refers to a paucity of Neptune-sized planets on short period orbits. Our 2.4-year-long Doppler monitoring of TOI-1288 revealed the presence of a Saturn-mass planet on a moderately eccentric orbit ($0.13^{+0.07}_{-0.09}$) with a minimum mass of $84 \pm 7$ M$_\oplus$ and a period of $443^{+11}_{-13}$ d. The 5 sectors worth of TESS data do not cover our expected mid-transit time for TOI-1288 c, and we do not detect a transit for this planet in these sectors.
