activity
19982026
most citedThe Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters

646 citations · 11.7k across the 200 of their papers we have counts for

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11 papers · 1 filter

astro-ph2008★ 13 cited

Two Jupiter-Mass Planets Orbiting HD 154672 and HD 205739

Mercedes Lopez-Morales, R. Paul Butler, Debra A. Fischer +6

We report the detection of the first two planets from the N2K Doppler planet search program at the Magellan telescopes. The first planet has a mass of M sin i = 4.96 M_Jup and is o…

astro-ph2007★ 96 cited

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…

astro-ph2007★ 326 cited

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…

astro-ph2007★ 267 cited

Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants

John A. Johnson, Debra A. Fischer, Geoffrey W. Marcy +6

We report precision Doppler measurements of three intermediate-mass subgiants from Lick and Keck Observatories. All three stars show variability in their radial velocities consiste…

astro-ph2007★ 128 cited

Five Intermediate-Period Planets from the N2K Sample

Debra A. Fischer, Steven S. Vogt, Geoffrey W. Marcy +12

We report the detection of five Jovian mass planets orbiting high metallicity stars. Four of these stars were first observed as part of the N2K program and exhibited low RMS veloci…

astro-ph2006★ 56 cited

The N2K Consortium VI: Doppler Shifts Without Templates and Three New Short-Period Planets

John A. Johnson, Geoffrey W. Marcy, Debra A. Fischer +7

We present a modification to the iodine cell Doppler technique that eliminates the need for an observed stellar template spectrum. For a given target star, we iterate toward a synt…