Commission 24. (Parallax and Proper Motions.)
نویسندگان
چکیده
منابع مشابه
Parallax Photography: Creating 3D Motions from Stills
Parallax Photography: Creating 3D Motions from Stills
متن کاملProper Motions of Psrs B1757−24 and B1951+32: Implications for Ages and Associations
Over the last decade, considerable effort has been made to measure the proper motions of the pulsars B1757−24 and B1951+32 in order to establish or refute associations with nearby supernova remnants and to understand better the complicated geometries of their surrounding nebulae. We present proper motion measurements of both pulsars with the Very Large Array, increasing the time baselines of th...
متن کاملThe Parallax and Proper Motion of Rx J1856.5−3754 Revisited
RX J1856.5−3754, a bright soft X-ray source believed to be the nearest thermally emitting neutron star, has commanded and continues to command intense interest from X-ray missions. One of the main goals is to determine the radius of this neutron star. An integral part of the determination is an accurate parallax. Walter (2001) analyzed Hubble Space Telescope (HST ) data and derived a parallax, ...
متن کاملStellar Kinematics from Hipparcos Proper Motions
From Hipparcos proper motions, we have analyzed the local kinematics of the Milky Way from the young O-B5 stars, classical Cepheids, and the late-type K-M giants. Comparing the derived results, the kinematical discrepancies between each subset of stars have been analyzed, and the possible reasons for the kinematical di erences have been discussed.
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ژورنال
عنوان ژورنال: Transactions of the International Astronomical Union
سال: 1936
ISSN: 0251-107X
DOI: 10.1017/s0251107x00017600