output
19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2009 · astro-ph.EPShow all

5 papers · 2 filters

astro-ph.EP2009★ 32 cited

The California Planet Survey II. A Saturn-Mass Planet Orbiting the M Dwarf Gl649

John Asher Johnson, Andrew W. Howard, Geoffrey W. Marcy +6

We report precise Doppler measurements of the nearby (d = 10.34 pc) M dwarf Gl649 that reveal the presence of a planet with a minimum mass Msini = 0.328 Mjup in an eccentric (e = 0…

astro-ph.EP2009★ 91 cited

The Transit Ingress and the Tilted Orbit of the Extraordinarily Eccentric Exoplanet HD 80606b

Joshua N. Winn, Andrew W. Howard, John Asher Johnson +18

We present the results of a transcontinental campaign to observe the 2009 June 5 transit of the exoplanet HD 80606b. We report the first detection of the transit ingress, revealing…

astro-ph.EP2009★ 227 cited

HAT-P-7: A Retrograde or Polar Orbit, and a Third Body

Joshua N. Winn, John Asher Johnson, Simon Albrecht +4

We show that the exoplanet HAT-P-7b has an extremely tilted orbit, with a true angle of at least 86 degrees with respect to its parent star's equatorial plane, and a strong possibi…

astro-ph.EP2009★ 100 cited

A Third Exoplanetary System with Misaligned Orbital and Stellar Spin Axes

John A. Johnson, Joshua N. Winn, Simon Albrecht +3

We present evidence that the WASP-14 exoplanetary system has misaligned orbital and stellar-rotational axes, with an angle lambda = 33.1 +/- 7.4 deg between their sky projections.…

astro-ph.EP2009★ 128 cited

The NASA-UC Eta-Earth Program: I. A Super-Earth Orbiting HD 7924

Andrew W. Howard, John A. Johnson, Geoffrey W. Marcy +8

We report the discovery of the first low-mass planet to emerge from the NASA-UC Eta-Earth Program, a super-Earth orbiting the K0 dwarf HD 7924. Keplerian modeling of precise Dopple…