Detection of the Canis Major galaxy at ( l ; b
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منابع مشابه
The Moon behind the finger . Detection of the Canis Major galaxy in the background of galactic open clusters
The Moon behind the finger. Detection of the Canis Major galaxy in the background of galactic open clusters. ABSTRACT We report on the detection of Main Sequence and evolved stars belonging to the newly discovered Canis Major galaxy in the background of the open clusters NGC 2477, Tombaugh 1 and Berkeley 33. From the Color Magnitude Diagram of the galaxy as it appear in the background of NGC 24...
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The recently-discovered stellar system in Canis Major is analysed using He-burning Red Clump stars as tracers. Canis Major turns out to be the strongest and most spatially confined overdensity of the whole Galactic Disc, both in terms of number density and of statistical significance. When projected onto the Galactic Plane, it appears as an elongated and compact overdensity extending from l ∼ 2...
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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...
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We present an analysis of the asymmetries in the population of Galactic M-giant stars present in the 2MASS All Sky catalogue. Several large-scale asymmetries are detected, the most significant of which is a strong elliptical-shaped stellar over-density, close to the Galactic plane at (l = 240◦, b = −8◦), in the constellation of Canis Major. A small grouping of globular clusters (NGC 1851, NGC 1...
متن کاملThe 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...
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تاریخ انتشار 2004