VizieR Online Data Catalog: Transmission Spectroscopy Metric of exoplanets (Guo+, 2020)

Based on Wide Field Camera 3 (WFC3) observations during two Hubble Space Telescope (HST) visits in 2013-December-19 and 2014-January-7 (HST program 13501, PI:Knutson) the first transmission spectrum of HD97658b from 1.1 to 1.7μm was rerported. Other observations were conducted on 2016-April-20 and 2017-January-31 under the HST program 13665 (PI:Benneke) the Space Telescope Imaging Spectrograph (STIS) using the G750L grism (0.524-1.027μm).

Six transits were observed with the The Infrared Array Camera (IRAC) 3.6μm channel, and five transits were observed with the 4.5μm channel from 2014-July to 2016-April under Spitzer program 11131. Each transit was observed with 0.08s exposure per frame and approximately 0.13s per frame cadence.

Microvariability and Oscillation of Stars (MOST) is a microsatellite carrying a 15cm optical telescope that acquires light through a broadband filter spanning the visible wavelengths from 350 to 700nm. It is in a Sun-synchronous polar orbit with a period of 101.4minutes, which allows it to monitor stars in a Continuous Viewing Zone (CVZ) without interruption for up to 8weeks. The CVZ covers a declination range of +36deg>δ>-18deg. HD97658 was observed by MOST in Direct Imaging mode, in which defocused images of the stars were projected directly onto the CCD. The exposure times were all 1.5s, and the observations were stacked on board the satellite in groups of 21 for a total integration time of 31.5s per data point.

Since 1997 January, we have collected 553 radial velocity measurements with the High Resolution Echelle Spectrometer (HIRES) on the Keck I Telescope on Maunakea and 215 measurements with the Levy spectrograph on the Automated Planet Finder at Lick Observatory (APF). The HIRES data were often taken in sets of three due to the short ~2min exposures to mitigate the effects of stellar oscillations; this was not necessary for the APF due to the smaller aperture and longer exposure times (~10-20min exposures).

(2 data files).