Nebula in Andromeda and Nova, 1885
نویسندگان
چکیده
منابع مشابه
A deep kinematic survey of planetary nebulae in the Andromeda Galaxy using the Planetary Nebula Spectrograph
We present a catalogue of positions, magnitudes and velocities for 3300 emission-line objects found by the Planetary Nebula Spectrograph in a survey of the Andromeda Galaxy, M31. Of these objects, 2615 are found likely to be planetary nebulae (PNe) associated with M31. The survey area covers the whole of M31’s disk out to a radius of 1.5. Beyond this radius, observations have been made along th...
متن کاملThe Rotation and Radial Velocity of the Central Part of the Andromeda Nebula.
Donaldson, H. H., J. Comp. Neur., Wistar Inst., Philadelphia, 19, 1909, (155-167). 2 Kellicott, W. E., Amer. J. Anat., Wistar Inst., Philadelphia, 8, 1908, (319-353). 3Donaldson, H. H., On the percentage of water in the brain of the summer flounder (Paralichthys dentatus) according to the body weight. MS. 1905. 4 Scott, G. G., Proc. Soc. Exp. Biol. Med., New York, 9, 1912. 5 Donaldson, H. H., J...
متن کاملProper Motions in the Andromeda Subgroup
This article presents results of VLBI observations of regions of H2O maser activity in the Local Group galaxies M33 and IC 10. Since all position measurements were made relative to extragalactic background sources, the proper motions of the two galaxies could be measured. For M33, this provides this galaxy’s three dimensional velocity, showing that this galaxy is moving with a velocity of 190 ±...
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Neural stem cells (NSCs) are defined by their ability to self-renew and to differentiate into mature neuronal and glial cell types. NSCs are the subject of intense investigation, owing to their crucial roles in neural development and adult brain function and because they present potential targets for gene and cell replacement therapies following injury or disease. Approaches to specifically gen...
متن کاملThe Once and Future Andromeda Stream
The interaction between an accreting satellite and the Andromeda galaxy has been studied using an N -body simulation to investigate the self-gravitating response of the disk, the bulge, and the dark matter halo to an accreting satellite. Our simulation shows that the “giant stream” is the tidal debris of the infalling satellite. The debris also produces diffuse shells on the east and the west s...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1888
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/48.3.108