10.4k citations
- U.S. Naval Observatory Flagstaff StationUS242 papers
- California Institute of TechnologyUS180 papers
- Princeton UniversityUS162 papers
- University of ArizonaUS128 papers
- Space Telescope Science InstituteUS127 papers
- Pennsylvania State UniversityUS124 papers
- Johns Hopkins UniversityUS121 papers
- University of WashingtonUS120 papers
- University of ChicagoUS109 papers
- Fermi National Accelerator LaboratoryUS103 papers
- Goddard Space Flight CenterUS97 papers
- Center for Astrophysics Harvard & SmithsonianUS96 papers
31 papers · 2 filters
Proper Motions of Dwarf Spheroidal Galaxies from Hubble Space Telescope Imaging. V: Final Measurement for Fornax
Slawomir Piatek, Carlton Pryor, Paul Bristow +5
The measured proper motion of Fornax, expressed in the equatorial coordinate system, is mas century. This proper motion is a weighted…
A Survey of Open Clusters in the u'g'r'i'z' Filter System: III. Results for the Cluster NGC 188
Bartosz Fornal, Douglas L. Tucker, J. Allyn Smith +3
We continue our series of papers describing the results of a photometric survey of open star clusters, primarily in the southern hemisphere, taken in the u'g'r'i'z' filter system.…
Trigonometric Parallaxes of Central Stars of Planetary Nebulae
Hugh C. Harris, Conard C. Dahn, Blaise Canzian +11
Trigonometric parallaxes of 16 nearby planetary nebulae are presented, including reduced errors for seven objects with previous initial results and results for six new objects. The…
Initial Results from the USNO Dispersed Fourier Transform Spectrograph
Arsen R. Hajian, Bradford B. Behr, Andrew T. Cenko +15
We have designed and constructed a ``dispersed Fourier Transform Spectrometer'' (dFTS), consisting of a conventional FTS followed by a grating spectrometer. By combining these two…
VLA+PT Astrometry of 46 Radio Stars
D. A. Boboltz, A. L. Fey, W. K. Puatua +4
We have used the Very Large Array (VLA), linked with the Pie Town Very Long Baseline Array antenna, to determine astrometric positions of 46 radio stars in the International Celest…
The HgMn Binary Star Phi Herculis: Detection and Properties of the Secondary and Revision of the Elemental Abundances of the Primary
R. T. Zavala, S. J. Adelman, C. A. Hummel +6
Observations of the Mercury-Manganese star Phi Herculis with the Navy Prototype Optical Interferometer (NPOI) conclusively reveal the previously unseen companion in this single-lin…