The APM Proper Motion Project - I. High proper motion stars
نویسندگان
چکیده
منابع مشابه
OGLE-II High Proper Motion Stars towards the Galactic centre
The photometry data base of the second phase of the OGLE microlensing experiment, OGLE-II, is a rich source of information about the kinematics and structure of the Galaxy. In this work we use the OGLE-II proper motion catalogue to identify candidate stars which have high proper motions. 521 stars with proper motion μ > 50 mas yr in the OGLE-II proper motion catalogue (Sumi et al. 2004) were cr...
متن کاملCompleteness of USNO-B for High Proper-Motion Stars
I test the completeness of USNO-B detections of high proper-motion (μ > 180mas yr) stars and the accuracy of its measurements by comparing them to the revised NLTT (rNLTT) catalog of Salim & Gould. For 14.5 < V < 18.5, only 6% of such stars are missing from USNO-B while another 4% have large errors, mostly too large to be useful. Including both classes, incompleteness is 10%. These fractions ri...
متن کاملSpectroscopy of New High Proper Motion Stars in the Northern Sky . I .
We define an enhanced spectral classification scheme for M dwarf stars, and use it to derive spectral classification of 104 northern stars with proper motions larger than 0.5 yr which we discovered in a survey of high proper motion stars at low galactic latitudes. The final tally is as follows: 54 M dwarfs, 25 sdK and sdM subdwarfs, 14 esdK and esdM extreme subdwarfs, and 11 DA and DC white dwa...
متن کاملThe Liverpool-Edinburgh High Proper Motion Survey
We present a catalogue of 6206 stars which have proper motions exceeding 0.18yr with an R-band faint magnitude limit of 19·5mag. This catalogue has been produced using SuperCOSMOS digitized R-Band ESO and UK Schmidt Plates in 131 Schmidt fields covering more than 3,000 square degrees (>7·5% of the whole sky) at the South Galactic Cap. The survey is ≥90% complete within the nominal limits of the...
متن کاملOn the Crab Proper Motion
Owing to the dramatic evolution of telescopes as well as optical detectors in the last 20 yrs, we are now able to measure anew the proper motion of the Crab pulsar, after the classical result of Wyckoff and Murray (1977) in a time span 40 times shorter. The proper motion is aligned with the axis of symmetry of the inner Crab nebula and, presumably, with the pulsar spin axis.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1992
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/255.3.521