The AAT/WFI survey of the Monoceros Ring and Canis Major dwarf galaxy - I. From l= (193-276)

The Canis Major dwarf galaxy as the progenitor of the Monoceros tidal stream

The Sloan Digital Sky Survey has recently discovered a coherent ring of stars at low galactic latitude that is believed to be the tidal stream of a merging dwarf galaxy in the Galactic plane (named the Monoceros tidal stream). The existence and location of the core of its progenitor galaxy is still controversial. The best candidate is the Canis Major dwarf galaxy, a distinct overdensity of red ...

The Globular Cluster System of the Canis Major Dwarf Galaxy

Prompted by the discovery of the accreted Canis Major dwarf galaxy and its associated globular cluster (GC) system (Martin et al.), we investigate the contribution of accreted GCs to the Galactic system. The Canis Major GCs, and those associated with the Sagittarius dwarf galaxy, exhibit a range of galactocentric radii, prograde and retro-grade motions, and horizontal branch morphologies, indic...

the survey of the virtual higher education in iran and the ways of its development and improvement

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.

A radial velocity survey of low Galactic latitude structures: I. Kinematics of the Canis Major dwarf galaxy

As part of a radial velocity survey of low Galactic latitude structures that we undertook with the 2dF spectrograph on the AAT, we present the radial velocities of more than 1400 Red Giant Branch and Red Clump stars towards the centre of the Canis Major dwarf galaxy. With a mean velocity of 69 ± 12 km s at a Heliocentric distance of 5.5 kpc and 114± 2 km s at 8.5 kpc, these stars present a pecu...

Detection of the Canis Major galaxy at ( l ; b