On the Observability of Individual Population III Stars and Their Stellar-mass Black Hole Accretion Disks through Cluster Caustic Transits [PDF]
, 2018 We summarize panchromatic Extragalactic Background Light data to place upper limits on the integrated near-infrared surface brightness (SB) that may come from Population III stars and possible accretion disks around their stellar-mass black holes (BHs ...
R. Windhorst +10 more
semanticscholar +1 more source
Geophysical Observations of Phobos Transits by InSight
Geophysical Research Letters, 2020 Since landing on Mars, the NASA InSight lander has witnessed eight Phobos and one Deimos transits. All transits could be observed by a drop in the solar array current and the surface temperature, but more surprisingly, for several ones, a clear signature
S. Stähler +20 more
semanticscholar +1 more source
Detection of Planetary Transits Across a Sun-like Star [PDF]
Astrophysical Journal, 1999 We report high-precision, high-cadence photometric measurements of the star HD 209458, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit.
D. Charbonneau +3 more
semanticscholar +1 more source
Follow-Up Observations of PTFO 8-8695: A 3 MYr Old T-Tauri Star Hosting a Jupiter-mass Planetary Candidate [PDF]
, 2015 We present Spitzer 4.5\micron\ light curve observations, Keck NIRSPEC radial velocity observations, and LCOGT optical light curve observations of PTFO~8-8695, which may host a Jupiter-sized planet in a very short orbital period (0.45 days). Previous work
Barnes, J. W. +15 more
core +4 more sources
Transits of Inclined Exomoons—Hide and Seek and an Application to Kepler-1625 [PDF]
Astrophysical Journal, 2019 A Neptune-sized exomoon candidate was recently announced by Teachey & Kipping, orbiting a 287 day gas giant in the Kepler-1625 system. However, the system is poorly characterized and needs more observations to be confirmed, with the next potential ...
D. Martin, D. Fabrycky, B. Montet
semanticscholar +1 more source
A Decade of Hα Transits for HD 189733 b: Stellar Activity versus Absorption in the Extended Atmosphere [PDF]
, 2017 HD 189733 b is one of the most well studied exoplanets due to its large transit depth and host star brightness. The focus on this object has produced a number of high-cadence transit observations using high-resolution optical spectrographs.
P. Cauley, S. Redfield, A. Jensen
semanticscholar +1 more source
Predicted Yield of Transits of Known Radial Velocity Exoplanets from the TESS Primary and Extended Missions [PDF]
Publications of the Astronomical Society of the Pacific, 2018 Radial velocity (RV) surveys have detected hundreds of exoplanets through their gravitational interactions with their host stars. Some will be transiting, but most lack sufficient follow-up observations to confidently detect (or rule out) transits.
P. Dalba +7 more
semanticscholar +1 more source
The precision of time registration with Danjon astrolabe [PDF]
Serbian Astronomical Journal, 1998 During 1988 at the Munich, Vienna and Graz stations selected stars were observed for the purpose of determining difference in the longitudes. The measurements were performed with Danjon astrolabe by using the method of equal zenith distances. In
Perović G., Cvetković Z.
doaj +1 more source
The Spitzer search for the transits of HARPS low-mass planets - II. Null results for 19 planets [PDF]
, 2017 Short-period super-Earths and Neptunes are now known to be very frequent around solar-type stars. Improving our understanding of these mysterious planets requires the detection of a significant sample of objects suitable for detailed characterization ...
Curto, G. Lo +11 more
core +1 more source
Shallow Transits—Deep Learning. I. Feasibility Study of Deep Learning to Detect Periodic Transits of Exoplanets [PDF]
, 2017 Transits of habitable planets around solar-like stars are expected to be shallow, and to have long periods, which means low information content. The current bottleneck in the detection of such transits is caused in large part by the presence of red ...
S. Zucker, R. Giryes
semanticscholar +1 more source