Results 81 to 90 of about 4,693,249 (249)
, 2010 We present new UV-to-IR stellar photometry of four low-extinction windows in the Galactic bulge, obtained with the Wide Field Camera 3 on the Hubble Space Telescope (HST).
Anderson, Jay +16 more
core +1 more source
Why do protoplanetary disks appear not massive enough to form the known exoplanet population? [PDF]
Astronomy & Astrophysics, 2018 When and how planets form in protoplanetary disks is still a topic of discussion. Exoplanet detection surveys and protoplanetary disk surveys are now providing results that are leading to new insights.
C. Manara +4 more
semanticscholar +1 more source
Commissioning an Inexpensive Off‐The‐Shelf Spectrograph for Radial‐Velocity Studies
Astronomische Nachrichten, EarlyView.ABSTRACT We present a way to set up an inexpensive out of the shelf spectrograph at a local observatory. Stability and resolution of the spectrograph are high enough for radial velocity determination of binary stars or determination of stellar characteristics. Even some exoplanets might be detectable via the radial velocity method.
Lukas Stock, Andreas Schrimpf
wiley +1 more source
Boundary Layers of Circumplanetary Disks around Spinning Planets. I. Effects of Rossby Waves
The Astrophysical Journal, 2023 Gas giant planets are believed to accrete from their circumplanetary disks (CPDs). The CPDs usually involve accretion through the boundary layer (BL) in the vicinity of planets. Prior studies have concentrated on the BL of nonspinning planets.
Zhihao Fu, Shunquan Huang, Cong Yu
doaj +1 more source
Friends Not Foes: Strong Correlation between Inner Super-Earths and Outer Gas Giants
The Astrophysical Journal LettersThe connection between outer gas giants and inner super-Earths reflects their formation and evolutionary histories. Past work exploring this link has suggested a tentative positive correlation between these two populations, but these studies have been ...
Marta L. Bryan, Eve J. Lee
doaj +1 more source
"Retired" Planet Hosts: Not So Massive, Maybe Just Portly After Lunch
, 2011 Studies of the planet abundance as a function of stellar mass have suggested a strong increase in the frequency of planet occurrence around stars more massive than $1.5 M_\odot$, and that such stars are deficit in short period planets.
Allende Prieto +27 more
core +1 more source
The CoRoT Exoplanet program : status & results [PDF]
, 2011 The CoRoT satellite is the first instrument hunting for planets from space. We will review the status of the CoRoT/Exoplanet program. We will then present the CoRoT exoplanetary systems and how they widen the range of properties of the close-in ...
Bordé, P. +3 more
core +2 more sources
The Formation of Ultra-short-period Planets under the Influence of the Nearby Planetary Companions
The Astrophysical JournalUltra-short-period (USP) planets, defined as those with orbital periods shorter than 1 day, provide valuable insights into planetary evolution under strong stellar tidal interactions.
Jiajun Zhu +3 more
doaj +1 more source
Altitude Profile and Isotopic Composition for N2 From Pioneer Venus Mass Spectra
Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.Abstract We report the highest resolution altitude profile and isotopic composition for N2 at Venus, to date. These results were obtained through re‐analysis of data acquired by the Pioneer Venus Large Probe Neutral Mass Spectrometer (LNMS). The N2 is non‐uniformly mixed across the clouds and sub‐cloud atmosphere (∼59–15 km) yet uniformly mixed across ...
R. Mogul, S. S. Limaye, M. J. Way
wiley +1 more source
Phase Equilibria of Sub-Neptunes and Super-Earths
The Planetary Science JournalWe investigate the consequences of nonideal chemical interaction between silicate and overlying hydrogen-rich envelopes for rocky planets using basic tenets of phase equilibria.
Edward D. Young +4 more
doaj +1 more source