ﻻ يوجد ملخص باللغة العربية
We present 44 validated planets from the 10$^mathrm{th}$ observing campaign of the NASA $K2$ mission, as well as high resolution spectroscopy and speckle imaging follow-up observations. These 44 planets come from an initial set of 72 vetted candidates, which we subjected to a validation process incorporating pixel-level analyses, light curve analyses, observational constraints, and statistical false positive probabilities. Our validated planet sample has median values of $R_p$ = 2.2 $R_oplus$, $P_mathrm{orb}$ = 6.9 days, $T_{mathrm{eq}}$ = 890 K, and $J$ = 11.2 mag. Of particular interest are four ultra-short period planets ($P_mathrm{orb} lesssim 1$ day), 16 planets smaller than 2 $R_oplus$, and two planets with large predicted amplitude atmospheric transmission features orbiting infrared-bright stars. We also present 27 planet candidates, most of which are likely to be real and worthy of further observations. Our validated planet sample includes 24 new discoveries, and has enhanced the number of currently known super-Earths ($R_p approx 1-2 R_oplus$), sub-Neptunes ($R_p approx 2-4 R_oplus$), and sub-Saturns ($R_p approx 4-8 R_oplus$) orbiting bright stars ($J = 8-10$ mag) by $sim$4%, $sim$17%, and $sim$11%, respectively.
We present a uniform analysis of 155 candidates from the second year of NASAs $K2$ mission (Campaigns 5-8), yielding 60 statistically validated planets spanning a range of properties, with median values of $R_p$ = 2.5 $R_oplus$, $P$ = 7.1 d, $T_mathr
We analysed 68 candidate planetary systems first identified during Campaigns 5 and 6 (C5 and C6) of the NASA textit{K2} mission. We set out to validate these systems by using a suite of follow-up observations, including adaptive optics, speckle imagi
Using the EVEREST photometry pipeline, we have identified 74 candidate ultra-short-period planets (orbital period P<1 d) in the first half of the K2 data (Campaigns 0-8 and 10). Of these, 33 candidates have not previously been reported. A systematic
Transiting super-Earths orbiting bright stars in short orbital periods are interesting targets for the study of planetary atmospheres. While selecting super-Earths suitable for further characterization from the ground among a list of confirmed and va
Given that Campaign 16 of the K2 mission is one of just two K2 campaigns observed so far in forward-facing mode, which enables immediate follow-up observations from the ground, we present a catalog of interesting targets identified through photometry