326 citations · 1.1k across the 6 of their papers we have counts for
6 papers
Variable Sodium Absorption in a Low-Extinction Type Ia Supernova
Joshua D. Simon, Avishay Gal-Yam, Orly Gnat +18
Recent observations have revealed that some Type Ia supernovae exhibit narrow, time-variable Na I D absorption features. The origin of the absorbing material is controversial, but…
Five Planets Orbiting 55 Cancri
Debra A. Fischer, Geoffrey W. Marcy, R. Paul Butler +9
We report 18 years of Doppler shift measurements of a nearby star, 55 Cancri, that exhibit strong evidence for five orbiting planets. The four previously reported planets are stron…
An Accurate Distance to High-Velocity Cloud Complex C
C. Thom, J. E. G. Peek, M. E. Putman +3
We report an accurate distance of d = 10+/-2.5kpc to the high-velocity cloud Complex C. Using high signal-to-noise Keck/HIRES spectra of two horizontal-branch stars, we have detect…
Retired A Stars and Their Companions II: Jovian planets orbiting kappa Coronae Borealis and HD167042
John A. Johnson, Geoffrey W. Marcy, Debra A. Fischer +5
We report precise Doppler measurements of two evolved stars, kappa CrB (HD142091) and HD 167042, obtained at Lick Observatory as part of our search for planets orbiting intermediat…
A New Planet Around an M Dwarf: Revealing a Correlation Between Exoplanets and Stellar Mass
John A. Johnson, R. Paul Butler, Geoffrey W. Marcy +4
We report precise Doppler measurements of GJ317 (M3.5V) that reveal the presence of a planet with a minimum mass Msini = 1.2 Mjup in an eccentric, 692.9 day orbit. GJ317 is only th…
Spin-Orbit Alignment for the Eccentric Exoplanet HD 147506b
Joshua N. Winn, John Asher Johnson, Kathryn M. G. Peek +7
The short-period exoplanet HD 147506b (also known as HAT-P-2b) has an eccentric orbit, raising the possibility that it migrated through planet-planet scattering or Kozai oscillatio…