Results 71 to 80 of about 68,177 (239)
Investigating the free-floating planet mass by Euclid observations
, 2016 The detection of anomalies in gravitational microlensing events is nowadays one of the main goals among the microlensing community. In the case of single-lens events, these anomalies can be caused by the finite source effects, that is when the source ...
De Paolis, Francesco +3 more
core +1 more source
Flying fruit flies correct for visual sideslip depending on relative speed of forward optic flow.
Frontiers in Behavioral Neuroscience, 2013 As a fly flies through its environment, static objects produce moving images on its retina, and this optic flow is essential for steering and course corrections. Different types of rotation and translation produce unique flow fields, which fly brains are
Stephanie eCabrera, Jamie C Theobald
doaj +1 more source
, 2010 We use the parallax measurements of RE J 0317-853 to determine its mass, radius, and cooling age and thereby constrain its evolutionary origins. We observed RE J 0317-853 with the the Hubble Space Telescope's Fine Guidance System to measure the parallax ...
Althaus +50 more
core +1 more source
Impact of basic angle variations on the parallax zero point for a scanning astrometric satellite [PDF]
, 2017 Determination of absolute parallaxes by means of a scanning astrometric satellite such as Hipparcos or Gaia relies on the short-term stability of the so-called basic angle between the two viewing directions. Uncalibrated variations of the basic angle may
Butkevich, Alexey G. +4 more
core +1 more source
, 2013 For the uninitiated, parallax is a fancy term for triangulation, which we humans naturally do in the form of depth perception – your eyes are separated by a small distance from each other so they see slightly different views of the world. You can try it now by closing one eye, holding out your thumb, and lining it up with a mark on a far wall, then ...
openaire +1 more source
Auditory motion parallax [PDF]
Proceedings of the National Academy of Sciences, 2018 When an object vibrates and produces an audible sound, many animals locate the position of the sound source based on only the sound. The horizontal (azimuth), vertical (elevation), and distance (range) of sound sources can often be determined, in some cases with high acuity (1).
openaire +3 more sources
Building an Optimal Census of the Solar Neighborhood with Pan-STARRS Data
, 2010 We estimate the fidelity of solar neighborhood (D < 100 pc) catalogs soon to be derived from Pan-STARRS astrometric data. We explore two quantities used to measure catalog quality: completeness, the fraction of desired sources included in a catalog; and ...
Beaumont, Christopher N. +1 more
core +1 more source
Eye Pointing in Stereoscopic Displays
Journal of Eye Movement Research, 2016 This study investigated eye pointing in stereoscopic displays. Ten participants performed 18 tapping tasks in stereoscopic displays with three different levels of parallax (at the screen, 20 cm and 50 cm in front of the screen).
Chiuhsiang Joe Lin, Retno Widyaningrum
doaj +1 more source
Distance to Orion KL Measured with VERA
, 2007 We present the initial results of multi-epoch VLBI observations of the 22 GHz H2O masers in the Orion KL region with VERA (VLBI Exploration of Radio Astrometry).
Bushimata, Takeshi +36 more
core +1 more source