Isolated dwarf galaxies in the local supercluster and its surroundings
نویسندگان
چکیده
منابع مشابه
Orientation of Galaxies in the Local Supercluster: a Review
The progress of the studies on the orientation of galaxies in the Local Supercluster (LSC) is reviewed and a summary of recent results is given. Following a brief introduction of the LSC, we describe the results of early studies based on two-dimensional analysis, which were mostly not conclusive. We describe next the three-dimensional analysis, which is used widely today. Difficulties and syste...
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XMM-Newton and Chandra have ushered in a new era for the study of dwarf galaxies in the Local Group. We provide an overview of the opportunities, challenges, and some early results. The large number of background sources relative to galaxy sources is a major theme. Despite this challenge, the identification of counterparts has been possible, providing hints that the same mechanisms producing X-...
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We estimate the luminosity function of Ðeld galaxies over a range of 10 mag for ([22 \ M BJ \ [12 km s~1 Mpc~1) by counting the number of faint APM galaxies around Stromlo-APM redshift H 0 \ 100 survey galaxies at known distance. The faint end of the luminosity function rises steeply at M BJ B [15, implying that the space density of dwarf galaxies is at least 2 times larger than predicted by a ...
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We present the discovery of two new dwarf galaxies, Andromeda XXI and Andromeda XXII, located in the surroundings of the Andromeda and Triangulum galaxies (M31 and M33). These discoveries stem from the first year data of the Pan-Andromeda Archaeological Survey (PAndAS), a photometric survey of the M31/M33 group conducted with the Megaprime/MegaCam wide-field camera mounted on the Canada-France-...
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این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.
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ژورنال
عنوان ژورنال: Astrophysics
سال: 2010
ISSN: 0571-7256,1573-8191
DOI: 10.1007/s10511-010-9137-6