484 citations · 908 across the 12 of their papers we have counts for
12 papers
Radial Velocity Discovery of an Eccentric Jovian World Orbiting at 18 au
Sarah Blunt, Michael Endl, Lauren M. Weiss +25
Based on two decades of radial velocity (RV) observations using Keck/HIRES and McDonald/Tull, and more recent observations using the Automated Planet Finder, we found that the near…
The Kepler Follow-Up Observation Program. II. Stellar Parameters from Medium- and High-Resolution Spectroscopy
E. Furlan, D. R. Ciardi, W. D. Cochran +22
We present results from spectroscopic follow-up observations of stars identified in the Kepler field and carried out by teams of the Kepler Follow-Up Observation Program. Two sampl…
A 12-Year Activity Cycle for HD 219134
Marshall C. Johnson, Michael Endl, William D. Cochran +8
The nearby (6.5 pc) star HD 219134 was recently shown by Motalebi et al. (2015) and Vogt et al. (2015) to host several planets, the innermost of which is transiting. We present twe…
Cosmology with velocity dispersion counts: an alternative to measuring cluster halo masses
C. E. Caldwell, I. G. McCarthy, I. K. Baldry +3
The evolution of galaxy cluster counts is a powerful probe of several fundamental cosmological parameters. A number of recent studies using this probe have claimed tension with the…
Two New Long-Period Giant Planets from the McDonald Observatory Planet Search and Two Stars with Long-Period Radial Velocity Signals Related to Stellar Activity Cycles
Michael Endl, Erik J. Brugamyer, William D. Cochran +16
We report the detection of two new long-period giant planets orbiting the stars HD 95872 and HD 162004 (psi1 Draconis B) by the McDonald Observatory planet search. The planet HD 95…
The XMM Cluster Survey: evolution of the velocity dispersion -- temperature relation over half a Hubble time
Susan Wilson, Matt Hilton, Philip J. Rooney +26
We measure the evolution of the velocity dispersion--temperature (--) relation up to using a sample of 38 galaxy clusters drawn from the \textit{XMM}…
The impact from survey depth and resolution on the morphological classification of galaxies
M. Pović, I. Márquez, J. Masegosa +28
We consistently analyse for the first time the impact of survey depth and spatial resolution on the most used morphological parameters for classifying galaxies through non-parametr…
A Search for Exozodiacal Clouds with Kepler
Christopher C. Stark, Alan P. Boss, Alycia J. Weinberger +10
Planets embedded within dust disks may drive the formation of large scale clumpy dust structures by trapping dust into resonant orbits. Detection and subsequent modeling of the dus…
Revisiting rho 1 Cancri e: A New Mass Determination Of The Transiting super-Earth
Michael Endl, Paul Robertson, William D. Cochran +6
We present a mass determination for the transiting super-Earth rho 1 Cancri e based on nearly 700 precise radial velocity (RV) measurements. This extensive RV data set consists of…
A Second Giant Planet in 3:2 Mean-Motion Resonance in the HD 204313 System
Paul Robertson, J. Horner, Robert A. Wittenmyer +7
We present 8 years of high-precision radial velocity (RV) data for HD 204313 from the 2.7 m Harlan J. Smith Telescope at McDonald Observatory. The star is known to have a giant pla…
The Transiting Circumbinary Planets Kepler-34 and Kepler-35
William F. Welsh, Jerome A. Orosz, Joshua A. Carter +43
Most Sun-like stars in the Galaxy reside in gravitationally-bound pairs of stars called "binary stars". While long anticipated, the existence of a "circumbinary planet" orbiting su…
The McDonald Observatory Planet Search: New Long-Period Giant Planets, and Two Interacting Jupiters in the HD 155358 System
Paul Robertson, Michael Endl, William D. Cochran +7
We present high-precision radial velocity (RV) observations of four solar-type (F7-G5) stars - HD 79498, HD 155358, HD 197037, and HD 220773 - taken as part of the McDonald Observa…