Results 51 to 60 of about 68,177 (239)

Parallax limitations in digital holography: a phase space approach

Light: Advanced Manufacturing, 2022
The viewing direction in Digital Holography can be varied if different parts of a hologram are reconstructed. In this article parallax limitations are discussed using the phase space formalism.
Ulf Schnars, Claas Falldorf
doaj   +1 more source

Active Estimation of Distance in a Robotic Vision System that Replicates Human Eye Movement [PDF]

, 2005
Many visual cues, both binocular and monocular, provide 3D information. When an agent moves with respect to a scene, an important cue is the different motion of objects located at various distances.
Rucci, Michele, Santini, Fabrizio
core   +1 more source

The Cepheid period -- luminosity -- metallicity relation based on Gaia DR2 data

, 2018
We use parallax data from the Gaia second data release (GDR2), combined with parallax data based on Hipparcos and HST data, to derive the period-luminosity-metallicity (PLZ) relation for Galactic classical cepheids (CCs) in the V,K, and Wesenheit WVK ...
Groenewegen, M. A. T.
core   +1 more source

Direct Distance Measurement to the Dusty White Dwarf GD 362 [PDF]

, 2008
We present trigonometric parallax observations of GD 362 obtained over seven epochs using the MDM 2.4m Hiltner Telescope. The existence of a dust disk around this possibly massive white dwarf makes it an interesting target for parallax observations.
Becklin, D. Koester, Eisenstein, Farihi, Farihi, García-Berro, Gianninas, Hansen, John R. Thorstensen, Jura, Kalirai, Kilic, Kilic, Kilic, Kilic, Liebert, Livio, Livio, Lépine, Mukremin Kilic, Salim, Thorstensen, Thorstensen, von Hippel, Williams, Zuckerman   +25 more
core   +3 more sources

Seeing Earth's Orbit in the Stars: Parallax and Aberration

, 2012
During the 17th century the idea of an orbiting and rotating Earth became increasingly popular, but opponents of this view continued to point out that the theory had observable consequences that had never, in fact, been observed.
Hirshfeld Alan, Hooke Robert, Todd K. Timberlake   +2 more
core   +1 more source

OGLE-2017-BLG-0329L: A Microlensing Binary Characterized with Dramatically Enhanced Precision Using Data from Space-based Observations [PDF]

, 2018
Mass measurements of gravitational microlenses require one to determine the microlens parallax π E, but precise π E measurement, in many cases, is hampered due to the subtlety of the microlens-parallax signal combined with the difficulty of ...
A. Gould, A. Udalski, Alard C., B. S. Gaudi, B.-G. Park, Batista V., Bessell M. S., C. B. Henderson, C. Beichman, C. Han, C. Helling, C. Snodgrass, C.-U. Lee, Calchi Novati S., Calchi Novati S., Choi J.-Y., D. F. Evans, D.-J. Kim, D.-J. Lee, G. Bryden, Gould A., H.-W. Kim, Han C., Han C., Han C., I. Soszyński, I.-G. Shin, J. C. Yee, J. Campbell-White, J. Skowron, K. Rybicki, K. Ulaczyk, K.-H. Hwang, Kayser R., L. K. Haikala, M. D. Albrow, M. Dominik, M. Hundertmark, M. J. Burgdorf, M. K. Szymański, M. Pawlak, M. Rabus, Nataf D. M., Nishiyama S., P. Iwanek, P. Longa-Peña, P. Mróz, P. Pietrukowicz, Park B.-G., R. Poleski, R. W. Pogge, S. Calchi Novati, S. Carey, S. Ciceri, S. Kozłowski, S. Lowry, S. Rahvar, S. Sajadian, S.-J. Chung, S.-L. Kim, S.-M. Cha, Schneider P., Shin I.-G., Skowron J., T. C. Hinse, U. G. Jørgensen, Udalski A., Udalski A., V. Bozza, W. Zang, W. Zhu, W.-T. Kim, Wang T., Y. K. Jung, Y. Lee, Y. Shvartzvald, Y.-H. Ryu, Yee J. C., Yee J. C., Yoo J.   +79 more
core   +7 more sources

A CURRENT APPLICATION OF THE METHODS OF SECULAR AND STATISTICAL PARALLAX

Odessa Astronomical Publications, 2012
The methods of secular and statistical parallax for homogeneous groups of Galactic stars are applied in a practical (classroom) exercise to establish the luminosity of bright B3 V stars. The solar motion of 20 km s-1 relative to group stars exceeds their
D. G. Turner
doaj   +1 more source

XHIP-II: Clusters and associations

, 2012
Context. In the absence of complete kinematic data it has not previously been possible to furnish accurate lists of member stars for all moving groups. There has been an unresolved dispute concerning the apparent inconsistency of the Hipparcos parallax ...
B. D. Mason, B. Famaey, B. Zuckerman, C. Francis, Ch. Francis, D. G. Turner, D. R. Soderblom, D. R. Soderblom, E. Anderson, E. Anderson, F. Leeuwen van, H. Baumgardt, J. Dommanget, J. R. King, J. R. Stauffer, M. A. C. Perryman, N. V. Kharchenko, N. V. Kharchenko, N. Zwahlen, P. D. Dobbie, P. T. Zeeuw de, S. M. Percival, W. S. Dias, X. Pan   +23 more
core   +1 more source

Trigonometric Parallaxes of Central Stars of Planetary Nebulae [PDF]

, 2006
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.
Acker A., Alice K. B. Monet, Barstow M. A., Blaise Canzian, Cahn J. H., Christian B. Luginbuhl, Conard C. Dahn, David G. Monet, Frederick J. Vrba, Harry H. Guetter, Hugh C. Harris, Ishida K., Jeffrey R. Pier, Mendez R. H., Napiwotzki R., Pottasch S. R., Pottasch S. R., Richard L. Walker, Ronald C. Stone, S. K. Leggett, Stephen E. Levine, Trudy Tilleman, Van de Steene G. C., Werner K.   +23 more
core   +2 more sources

Casting Light on Degeneracies: A Comprehensive Study of Lightcurve Variations in Microlensing Events OGLE-2017-BLG-0103 and OGLE-2017-BLG-0192

The Astronomical Journal
This study investigates orbital parallax in gravitational microlensing events, focusing on OGLE-2017-BLG-0103 and OGLE-2017-BLG-0192. For events with timescales ≤60 days, a Jerk-Parallax degeneracy arises due to high Jerk velocity ( $\tilde{{v}_{j ...
Sarang Shah
doaj   +1 more source