Detectability of Terrestrial Planets in Multi-Planet Systems: Preliminary Report (2009)
Traub, Wesley A., Beichman, Charles, Boden, Andrew F., Boss, Alan P., Casertano, Stefano, Catanzarite, Joseph, ...
We ask if Earth-like planets (terrestrial mass and habitable-zone orbit) can be detected in multi-planet systems, using astrometric and radial velocity observations. We report here the preliminary...
The Transit Light Curve Project. X. A Christmas Transit of HD 17156b (2008)
Winn, Joshua N., Holman, Matthew J., Henry, Gregory W., Torres, Guillermo, Fischer, Debra, Johnson, John Asher, ...
Photometry is presented of the Dec. 25, 2007 transit of HD 17156b, which has the longest orbital period and highest orbital eccentricity of all the known transiting exoplanets. New measurements of...
Lunine, Jonathan I., Fischer, Debra, Hammel, H. B., Henning, Thomas, Hillenbrand, Lynne, Kasting, James, ...
[No abstract]
Lunine, Jonathan I., Fischer, Debra, Hammel, H. B., Henning, Thomas, Hillenbrand, Lynne, Kasting, James, ...
Not Available
A Planetary Companion To A Nearby M4 Dwarf, Gliese 876 (2007)
Geoffrey Marcy Paul, Steven S. Vogt, Debra Fischer, Jack J. Lissauer
Doppler measurements of the M4 dwarf star Gliese 876 taken at both Lick and Keck Observatories reveal periodic, Keplerian velocity variations with a period of 61 days. The orbital fit implies that...
Submitted to Astrophys. J. Two New Candidate Planets in Eccentric Orbits (2007)
Geoffrey W. Marcy, R. Paul Butler, Steven S. Vogt, Debra Fischer, Michael C. Liu
Doppler measurements of two G--type main--seqeunce stars, HD210277 and HD168443, reveal Keplerian variations that imply the presence of companions with masses (M sin i) of 1.28 and 5.04 M JUP and...
A PAIR OF RESONANT PLANETS ORBITING GJ 8761 (2007)
Geoffrey W. Marcy, R. Paul Butler, Debra Fischer, Steven S. Vogt, Jack J. Lissauer, Eugenio J. Rivera
Precise Doppler measurements during 6 yr from the Lick and Keck observatories reveal two planets orbiting GJ 876 (M4V). The orbital t yields companion masses of M sin i \ 0.56 and 1.89 orbital M J...
New Planets around Three G Dwarfs (2007)
O'Toole, Simon J., Butler, R. Paul, Tinney, C. G., Jones, Hugh R. A., Marcy, Geoffrey W., Carter, Brad, ...
Doppler velocity measurements from the Anglo-Australian Planet Search reveal planetary mass companions to HD23127, HD159868, and a possible second planetary companion to HD154857. These stars are all...
Robinson, Sarah E., Laughlin, Gregory, Bodenheimer, Peter, Fischer, Debra
We present evidence that stars with planets exhibit statistically significant silicon and nickel enrichment over the general metal-rich population. We also present simulations which predict silicon...
Techniques To Radial Velocity Data Sets (2006)
San Francisco State, Peter Driscoll, Debra Fischer, Ron Marzke, Eric Ford, Peter Driscoll
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A COMPARISON OF LEAST-SQUARES AND BAYESIAN FITTING TECHNIQUES TO RADIAL VELOCITY DATA SETS (2006)
Peter Driscoll, Debra Fischer, Ron Marzke, Eric Ford, Peter Driscoll
I certify that I have read A Comparison of Least-Squares
The N2K Consortium. IV. New temperatures and metallicities for 100,000+ FGK dwarfs (2005)
Ammons, S. Mark, Robinson, Sarah E., Strader, Jay, Laughlin, Gregory, Fischer, Debra, Wolf, Aaron
We have created a framework to facilitate the construction of specialized target lists for radial velocity surveys that are biased toward stars that (1) possess planets and (2) are easiest to observe...
Identifying Very Metal-Rich Stars with Low-Resolution Spectra: Finding Planet-Search Targets (2005)
Robinson, Sarah E., Strader, Jay, Ammons, S. Mark, Laughlin, Gregory, Fischer, Debra
We present empirical calibrations that estimate stellar metallicity, effective temperature and surface gravity as a function of Lick/IDS indices. These calibrations have been derived from a training...
Gregory Laughlin, Aaron Wolf, Tonny Vanmunster, Peter Bodenheimer, Debra Fischer, Geoff Marcy, ...
Two extrasolar planets, HD 209458b and TrES-1, are currently known to transit bright parent stars for which physical properties can be accurately determined. The two transiting planets have very...
A Dynamical Analysis of the 47 UMa Planetary System (2002)
Laughlin, Gregory, Chambers, John, Fischer, Debra
The mass and period ratios of the two planets orbiting 47 UMa suggest a possible kinship to the Jupiter-Saturn pair in our solar system. We explore the current dynamical state of the 47 UMa system...
Soderblom, David R., Jones, Burton F., Fischer, Debra
We analyze Keck Hires observations of rotation in F, G, and K dwarf members of the open cluster M34 (NGC 1039), which is 250 Myr old, and we compare them to the Pleiades, Hyades, and NGC 6475. The...
A Strategy for Identifying the Grid Stars for the Space Interferometry Mission (SIM) (2000)
Frink, Sabine, Quirrenbach, Andreas, Fischer, Debra, Roeser, Siegfried, Schilbach, Elena
We present a strategy to identify several thousand stars that are astrometrically stable at the micro-arcsecond level for use in the SIM (Space Interferometry Mission) astrometric grid. The...
Rotational velocities of low-mass stars in the Pleiades and Hyades (1999)
Terndrup, Donald M., Stauffer, John R., Pinsonneault, Marc H., Sills, Alison, Yuan, Yongquan, Jones, Burton F., ...
We have obtained high-resolution spectra of 89 M dwarf members of the Pleiades and Hyades and have derived radial velocities, H-alpha equivalent widths, and spectroscopic rotational velocities for...
Two New Candidate Planets in Eccentric Orbits (1999)
Marcy, Geoffrey W., Butler, R. Paul, Vogt, Steven S., Fischer, Debra, Liu, Michael C.
Doppler measurements of two G-type main-sequence stars, HD210277 and HD168443, reveal Keplerian variations that imply the presence of companions with masses (M sin i) of 1.28 and 5.04 M_Jup and...
Two New Candidate Planets in Eccentric Orbits (1999)
Geoffrey W. Marcy, R. Paul Butler, Steven S. Vogt, Debra Fischer, Michael C. Liu
Doppler measurements of two G-type main-sequence stars, HD 210277 and HD 168443, reveal Keplerian variations that imply the presence of companions with masses (M sin i) of 1.28 and 5.04 M J (where is...
The Problem of Hipparcos Distances to Open Clusters. II. Constraints from Nearby Field Stars (1998)
Soderblom, David R., King, Jeremy R., Hanson, Robert B., Jones, Burton F., Fischer, Debra, Stauffer, John R., ...
This paper examines the discrepancy between distances to nearby open clusters as determined by parallaxes from Hipparcos compared to traditional main sequence fitting. The biggest difference is seen...