How axi-symmetric is the inner HI disc of the Milky Way?
نویسندگان
چکیده
منابع مشابه
The Distribution of Disk-Halo HI Clouds in the Inner Milky Way
Studies by Ford et al., concerning the physical properties and distribution of HI clouds in the inner Milky Way using 21 cm HI observations from the Parkes Radio Telescope’s Galactic All-Sky Survey, are reviewed. Individual clouds were identified in regions centered on tangent points at galactic longitudes 25 (quadrant I; hereafter Q1) and 335 (quadrant IV; hereafter QIV) and within 20 of the g...
متن کاملThe Vertical Structure of the Outer Milky Way Hi Disk
We examine the outer Galactic HI disk for deviations from the b = 0 plane by constructing maps of disk surface density, mean height, and thickness. We find that the Galactic warp is well described by a vertical offset plus two Fourier modes of frequency 1 and 2, all of which grow with Galactocentric radius. Adding the m = 2 mode accounts for the large asymmetry between the northern and southern...
متن کاملthe present study is a survey os postmodern historical novel with respect to the voice of women. it argues how the recorded history is regulated by the rules of power and how women have been excluded from this discourse.ther study analysez angela carters nights at the circus as an example of postmodern historical novel to illustrate how this novel has questioned the historical narrative and how it has inserted women into history by breaking the rules of patriarchy.
the present thesis is a study of postmodern historical novel with respect to the voice of women. according to postmodern historiography,the established institution of history is one of the other manifestations of patriarchys power which has silenced women. the study analyzes angela carters nights at the circus as a postmodern historical novel which makes its female characters transgress the pat...
15 صفحه اولClouds, filaments, and protostars: The Herschel Hi-GAL Milky Way *
We present the first results from the science demonstration phase for the Hi-GAL survey, the Herschel key-project that will map the inner Galactic Plane of the Milky Way in 5 bands. We outline our data reduction strategy and present some science highlights on the two observed 2◦ x 2◦ tiles approximately centered at l=30◦ and l=59◦. The two regions are extremely rich in intense and highly struct...
متن کاملHow common is the Milky Way - satellite system alignment ?
The highly flattened distribution of satellite galaxies in the Milky Way presents a number of puzzles. Firstly, its polar alignment stands out from the planar alignments commonly found in other galaxies. Secondly, recent proper motion measurements reveal that the orbital angular momentum of at least 3, and possibly as many as 8, of the Milky Way’s satellites point (within 30 degrees) along the ...
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: EPJ Web of Conferences
سال: 2012
ISSN: 2100-014X
DOI: 10.1051/epjconf/20121908007