179 citations · 1.5k across the 40 of their papers we have counts for
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Astrometry with the Keck-Interferometer: the ASTRA project and its science
Jorg-Uwe Pott, Julien Woillez, Rachel L. Akeson +22
The sensitivity and astrometry upgrade ASTRA of the Keck Interferometer is introduced. After a brief overview of the underlying interferometric principles, the technology and conce…
Milliarcsecond N-Band Observations of the Nova RS Ophiuchi: First Science with the Keck Interferometer Nuller
R. K. Barry, W. C. Danchi, W. A. Traub +38
We report observations of the nova RS Ophiuchi (RS Oph) using the Keck Interferometer Nuller (KIN), approximately 3.8 days following the most recent outburst that occurred on 2006…
The orbits of the quadruple star system 88 Tau A from PHASES differential astrometry and radial velocity
Benjamin F. Lane, Matthew W. Muterspaugh, Francis C. Fekel +7
We have used high precision differential astrometry from the Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) project and radial velocity measurements cover…
Masses, Luminosities, and Orbital Coplanarities of the mu Orionis Quadruple Star System from PHASES Differential Astrometry
Matthew W. Muterspaugh, Benjamin F. Lane, Francis C. Fekel +6
mu Orionis was identified by spectroscopic studies as a quadruple star system. Seventeen high precision differential astrometry measurements of mu Ori have been collected by the Pa…
Stellar and Molecular Radii of a Mira Star: First Observations with the Keck Interferometer Grism
J. A. Eisner, J. R. Graham, R. L. Akeson +6
Using a new grism at the Keck Interferometer, we obtained spectrally dispersed (R ~ 230) interferometric measurements of the Mira star R Vir. These data show that the measured radi…
Limits to Tertiary Astrometric Companions in Binary Systems
Matthew W. Muterspaugh, Benjamin F. Lane, S. R. Kulkarni +3
The Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) has monitored 37 sub-arcsecond binary systems to determine whether their Keplerian orbits are perturbed…
Scientific Results from High-precision Astrometry at the Palomar Testbed Interferometer
Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki +4
A new observing mode for the Palomar Testbed Interferometer was developed in2002-2003 which enables differential astrometry at the level of 20 micro-arcseconds for binary systems w…
Keck Interferometer Observations of FU Orionis Objects
R. Millan-Gabet, J. D. Monnier, R. L. Akeson +31
We present new K-band long baseline interferometer observations of three young stellar objects of the FU Orionis class, V1057 Cyg, V1515 Cyg and Z CMa-SE, obtained at the Keck Inte…
The dusty AGB star RS CrB: first mid-infrared interferometric observations with the Keck Telescopes
B. Mennesson, C. Koresko, M. J. Creech-Eakman +2
We report interferometric observations of the semi-regular variable star RS CrB, a red giant with strong silicate emission features. The data were among the first long baseline mid…
PHASES Differential Astrometry and the Mutual Inclination of the V819 Herculis Triple Star System
Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki +4
V819 Herculis is a well-studied triple star system consisting of a ``wide'' pair with 5.5 year period, one component of which is a 2.2-day period eclipsing single-line spectroscopi…
PHASES Differential Astrometry and Iodine Cell Radial Velocities of the kappa Pegasi Triple Star System
Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki +5
kappa Pegasi is a well-known, nearby triple star system. It consists of a ``wide'' pair with semi-major axis 235 milli-arcseconds, one component of which is a single-line spectrosc…
PHASES High Precision Differential Astrometry of delta Equulei
Matthew W. Muterspaugh, Benjamin F. Lane, Maciej Konacki +4
delta Equulei is among the most well-studied nearby binary star systems. Results of its observation have been applied to a wide range of fundamental studies of binary systems and s…
New insights on the AU-scale circumstellar structure of FU Orionis
Fabien Malbet, Régis Lachaume, Jean-Philippe Berger +7
We report new near-infrared, long-baseline interferometric observations at the AU scale of the pre-main-sequence star FU Orionis with the PTI, IOTA and VLTI interferometers. This y…
The near-infrared size-luminosity relations for Herbig Ae/Be disks
J. D. Monnier, R. Millan-Gabet, R. Billmeier +31
We report the results of a sensitive K-band survey of Herbig Ae/Be disk sizes using the 85-m baseline Keck Interferometer. Targets were chosen to span the maximum range of stellar…
Interferometer Observations of Subparsec-scale Infrared Emission in the Nucleus of NGC 4151
M. Swain, G. Vasisht, R. Akeson +22
We report novel, high-angular resolution interferometric measurements that imply the near-infrared nuclear emission in NGC 4151 is unexpectedly compact. We have observed the nucleu…
Atmospheric Turbulence Measurements with the Palomar Testbed Interferometer
R. P. Linfield, M. M. Colavita, B. F. Lane
Data from the Palomar Testbed Interferometer, with a baseline length of 110 m and an observing wavelength of , were used to derive information on atmospheric turbulen…
The Visual Orbit of 64 Piscum
A. F. Boden, B. F. Lane
We report on the determination of the visual orbit of the double-lined spectroscopic binary system 64 Piscum with data obtained by the Palomar Testbed Interferometer in 1997 and 19…
The Visual Orbit of iota Pegasi
A. F. Boden, C. D. Koresko
We have determined the visual orbit for the spectroscopic binary iota~Pegasi with interferometric visibility data obtained by the Palomar Testbed Interferometer in 1997. iota~Pegas…
Fringe Visibility Estimators for the Palomar Testbed Interferometer
M. M. Colavita
Visibility estimators and their performance are presented for use with the Palomar Testbed Interferometer (PTI). One operational mode of PTI is single-baseline visibility measureme…
FU Orionis resolved by infrared long baseline interferometry at a 2-AU scale
F. Malbet, J. -P. Berger, M. M. Colavita +3
We present the first infrared interferometric observations of a young stellar object with a spatial projected resolution better than 2 AU. The observations were obtained with the P…
An Interferometric Search for Bright Companions to 51 Pegasi
A. F. Boden, G. T. van Belle, The PTI Collaboration
We report on a near-infrared, long-baseline interferometric search for luminous companions to the star 51 Pegasi conducted with the Palomar Testbed Interferometer. Our data is comp…