Results 11 to 20 of about 1,114,768 (299)
Corrections of proper motions in declination by using ILS data [PDF]
Serbian Astronomical Journal, 2006 There are nowadays numerous astrometric ground{based observations of some stars referred to Hipparcos Catalogue, made at many observatories during the last century.
Damljanović G., Pejović N.
doaj +2 more sources
Proper motions in cepheus a [PDF]
, 2005 "We present an analysis of radio continuum observations made with the VeryLarge Array toward the region of massive star formation Cepheus A. The mainpurpose of this analysis is to search and study proper motions in the radio sourcesover the two decades of time covered by the observations.
Rodríguez, L. F. +5 more
openaire +2 more sources
A 1500 deg2 near infrared proper motion catalogue from the UKIDSS Large Area Survey [PDF]
, 2013 The United Kingdom Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS) began in 2005, with the start of the UKIDSS programme as a 7 year effort to survey roughly 4000 deg2 at high Galactic latitudes in Y, J, H and K bands.
Pinfield, D.J. +13 more
core +1 more source
The Astrophysical Journal, 2023 Our understanding of the kinematic properties of multiple stellar populations (mPOPs) in Galactic globular clusters (GCs) is still limited compared to what we know about their chemical and photometric characteristics. Such limitation arises from the lack
Mattia Libralato +14 more
doaj +1 more source
A Technique To Derive Improved Proper Motions For Kepler Objects Of Interest [PDF]
, 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 ...
Ciardi, David R. +3 more
core +1 more source
Corrections to the Hipparcos proper motions in declination for 807 stars [PDF]
Serbian Astronomical Journal, 2008 We used the data on latitude variations obtained from observations with 10 classical photographic zenith tubes (PZT) in order to improve the Hipparcos proper motions in declinations µδ for 807 stars.
Damljanović G., Pejović N.
doaj +3 more sources
Proper Motions of Pre-Main Sequence Stars [PDF]
, 2013 International audienceThe kinematic study of young stars is an important tool to discuss the early stages of star formation. In this context, proper motions allow us to detect moving group structures of young stars to which they belong.
Ducourant, C. +10 more
core +4 more sources
Astrometry and Photometry for ≈1000 L, T, and Y Dwarfs from the UKIRT Hemisphere Survey
The Astronomical Journal, 2023 We present the positions, proper motions, and near-infrared photometry for 966 known objects with spectral types later than M that were observed as part of the the UKIRT Hemisphere Survey (UHS).
Adam C. Schneider +7 more
doaj +1 more source
Walkaway Star Candidates in IC 348 and Their Possible Birthplaces
The Astrophysical Journal, 2023 Observations and theories reveal that star-forming regions eject their members during the early evolution of the cluster. We present an initial search for stars ejected from the young cluster IC 348 based on an analysis of Gaia EDR3 astrometry of ...
Xingyu Zhou +4 more
doaj +1 more source
Toroidal-poloidal partitioning of plate motions since 120 MA [PDF]
, 1993 Changes in plate motions and plate configurations during the Cenozoic and Mesozoic have been investigated extensively, but most geodynamical models have concentrated on present-day plate motions.
Richards, M.A. +9 more
core +1 more source