IC 348 proper motion study from digitised Schmidt plates
نویسندگان
چکیده
منابع مشابه
A UBV / variability / proper motion QSO survey from Schmidt plates I . Method and success rate
We describe the first combined variability-proper motion survey for QSOs on Schmidt plates. 85 Tautenburg Schmidt plates covering about 9 square degrees near the north Galactic pole were digitised by means of the APM facility in Cambridge. Variability indices have been derived from U and B data, both with a time-baseline of three decades. Structure function analysis has been applied to search f...
متن کاملStar Formation in IC 348
A review of work on the small, compact, nearby young cluster IC 348 is given. This region is particularly important because it is well surveyed at a variety of wavelengths and intermediate in nature between dense clusters and loose associations. Its earliest type star is B5 and it contains a few hundred stellar members as well as some brown dwarfs, protostars, Herbig-Haro objects and starless s...
متن کاملAperture Photometry of Saturated Star Images from Digitised Photographic Plates
Saturated stellar images on digitised photographic plates are many times greater in area than the ‘seeing disk’ seen in unsaturated CCD images. Indeed the flux profile of a bright star can be traced out for several degrees from the star’s centre. The radius of the saturated stellar image can often be directly related to the magnitude of the star, a fact well known and exploited in iris photomet...
متن کاملDeep UBVRI photometry in IC 348 ? ? ?
Deep UBVRI-CCD Johnson photometry for 123 stars in the densest region of IC348 open cluster were obtained during three observational runscolour and colour-magnitude diagrams allowed us to classify 114 stars as members of the cluster and to connrm a large presence of pre-main sequence stars. Individual reddening values were computed for the brightest members. The structure and sub-clustering wer...
متن کاملThe Proper Motion of the Local Group Galaxy IC 10
We have measured the proper motion of the Local Group galaxy IC 10 with the Very Long Baseline Array by measuring the position of an H 2 O maser relative to two background quasars over 4.3 years. After correction for the rotation of the Milky Way and IC 10, we obtain a motion of –39±9 µas yr −1 toward the East and 31±8 µas yr −1 toward the North. This corresponds to a total space velocity of 21...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy and Astrophysics Supplement Series
سال: 1999
ISSN: 0365-0138,1286-4846
DOI: 10.1051/aas:1999249