Results 11 to 20 of about 1,218,885 (321)

Proper Motion of Pulsar B1800-21 [PDF]

open access: yesThe Astrophysical Journal, 2006
We report high angular resolution, multi-epoch radio observations of the young pulsar PSR B1800-21. Using two pairs of data sets, each pair spanning approximately a ten year period, we calculate the proper motion of the pulsar.
Brand J.   +4 more
core   +8 more sources

The proper motion of Palomar 5 [PDF]

open access: yesThe Astrophysical Journal, 2015
Palomar 5 (Pal 5) is a faint halo globular cluster associated with narrow tidal tails. It is a useful system to understand the process of tidal dissolution, as well as to constrain the potential of the Milky Way.
Fritz, Tobias K., Kallivayalil, Nitya
core   +2 more sources

UrHip PROPER MOTION CATALOG [PDF]

open access: yesThe Astronomical Journal, 2015
11 pages, 5 figures, accepted for publication in ...
J. Frouard   +4 more
openaire   +2 more sources

Option Pricing under Double Heston Jump-Diffusion Model with Approximative Fractional Stochastic Volatility

open access: yesMathematics, 2021
Based on the present studies about the application of approximative fractional Brownian motion in the European option pricing models, our goal in the article is that we adopt the creative model by adding approximative fractional stochastic volatility to ...
Ying Chang, Yiming Wang, Sumei Zhang
doaj   +1 more source

The Distance To The Hyades Cluster Based On Hubble Space Telescope Fine Guidance Sensor Parallaxes [PDF]

open access: yes, 1997
Trigonometric parallax observations made with the Hubble Space Telescope (HST) Fine Guidance Sensor (FGS) 3 of seven Hyades members in six fields of view have been analyzed along with their proper motions to determine the distance to the cluster ...
Benedict, G. Fritz   +25 more
core   +1 more source

The UKIDSS-2MASS Proper Motion Survey I: Ultracool dwarfs from UKIDSS DR4 [PDF]

open access: yes, 2008
The UKIRT Infrared Deep Sky Survey (UKIDSS) is the first of a new generation of infrared surveys. Here we combine the data from two UKIDSS components, the Large Area Survey (LAS) and the Galactic Cluster Survey (GCS), with 2MASS data to produce an ...
Adelman-McCarthy   +71 more
core   +3 more sources

A Technique to Derive Improved Proper Motions for Kepler Objects of Interest [PDF]

open access: yes, 2014
We outline an approach yielding proper motions with higher precision than exists in present catalogs for a sample of stars in the Kepler field. To increase proper motion precision we combine first moment centroids of Kepler pixel data from a single ...
Benedict, G. Fritz   +3 more
core   +4 more sources

Proper Motion of Solar Filaments [PDF]

open access: yesAstronomy & Astrophysics, 1999
Precise measurements of heliographic position of solar filaments were used for describing the proper motion of solar filaments on the time-scale of one day. Only the velocity values more accurate than 100 m s−1 were used for the study. The filaments have a tendency to make a shaking or waving of the external structure and also to make a general ...
P. Ambrož, A. Schroll
openaire   +2 more sources

Proper Motion and Secular Variations of Keplerian Orbital Elements

open access: yesFrontiers in Astronomy and Space Sciences, 2018
High-precision observations require accurate modeling of secular changes in the orbital elements in order to extrapolate measurements over long time intervals, and to detect deviation from pure Keplerian motion caused, for example, by other bodies or ...
Alexey G. Butkevich
doaj   +1 more source

Hubble Space Telescope Proper Motion Measurements of Supernova Remnant N132D: Center of Expansion and Age

open access: yesThe Astrophysical Journal, 2023
We present proper motion measurements of the oxygen-rich ejecta of the LMC supernova remnant N132D using two epochs of Hubble Space Telescope Advanced Camera for Surveys data spanning 16 years.
John Banovetz   +10 more
doaj   +1 more source

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