312 research outputs found
The concept of personality in postmodern stories of the Turkish writer Bouquet Uzuner.
The relevance of the problem is the need for an artistic understanding of the issues of social reorganization of the country, and to identify the relationship between the inner world of an individual and socio-political events that influenced the artistic specificity of modernist literature. The purpose of this article is to consider the philosophical categories of alienation and loneliness and their embodiment in the literary and artistic field. The main results of the study are in understanding the formation of a new mentality, in the formation of a new personality, designed to be perceived as not only a literary phenomenon, but also as socio-political and cultural-historical one
Automated search for star clusters in large multiband surveys: II. Discovery and investigation of open clusters in the Galactic plane
Automated search for star clusters in J,H,K_s data from 2MASS catalog has
been performed using the method developed by Koposov et. al (2008). We have
found and verified 153 new clusters in the interval of the galactic latitude
-24 < b < 24 degrees. Color excesses E(B-V), distance moduli and ages were
determined for 130 new and 14 yet-unstudied known clusters. In this paper, we
publish a catalog of coordinates, diameters, and main parameters of all the
clusters under study. A special web-site available at http://ocl.sai.msu.ru has
been developed to facilitate dissemination and scientific usage of the results.Comment: 9 pages, 3 tables, 5 figures, accepted to Astronomy Letter
Leading Wave as a Component of the Spiral Pattern of the Galaxy
The spiral pattern of the Galaxy identified by analyzing the kinematics of
young stars within 3 kpc of the Sun is Fourier decomposed into spiral
harmonics. The spiral pattern of the Galaxy is shown to be representable as a
superposition of trailing and leading waves with interarm distances of
1.8(+/-0.4) kpc and 4(+/-2) kpc, respectively. Shock waves are probably present
only in the portions of the trailing spiral pattern where it crosses the crest
of the leading wave. The small interarm distance of the trailing spiral wave
(1.8 kpc) can be explained by its evolution - by the decrease in the interarm
distance as the wave is displaced toward the inner Lindblad resonance. The
Carina arm may be part of this resonance ring.Comment: 17 pages, 4 figures, to be published in Astronomy Letters, 200
Photometric and kinematic studies of open star clusters. III. NGC 4103, NGC 5281, and NGC 4755
We present CCD photometry and proper motion studies of the three open star
clusters NGC 4103, NGC 5281, and NGC 4755 (kappa Cru). By fitting isochrones to
the colour magnitude diagrams, we found that all three objects are young open
star clusters with ages of at most t=45 Myr. They are located at distances from
approx. 1600 pc to 2200 pc, derived from distance moduli (m-M)_0 ranging from
11 mag to 12 mag. We combined membership determinations based on proper motions
and statistical field star subtraction to derive the initial mass function
(IMF) of the clusters. The shape of the IMFs could be represented by power laws
with exponents of Gamma=-1.46 +/- 0.22 for NGC 4103, Gamma=-1.60 +/- 0.50 for
NGC 5281, and Gamma=-1.68 +/- 0.14 for NGC 4755, when - as a reference -
Salpeter's (1955) value would be Gamma=-1.35. These results agree well with
other IMF studies of open star clusters.Comment: 16 pages, 14 figures, accepted for publication in Astronomy &
Astrophysic
In Search of Possible Associations between Planetary Nebulae and Open Clusters
We consider the possibility of cluster membership for 13 planetary nebulae
that are located in close proximity to open clusters lying in their lines of
sight. The short lifetimes and low sample size of intermediate-mass planetary
nebulae with respect to nearby open clusters conspire to reduce the probability
of observing a true association. Not surprisingly, line of sight coincidences
almost certainly exist for 7 of the 13 cases considered. Additional studies are
advocated, however, for 6 planetary nebula/open cluster coincidences in which a
physical association is not excluded by the available evidence, namely M
1-80/Berkeley 57, NGC 2438/NGC 2437, NGC 2452/NGC 2453, VBRC 2 & NGC 2899/IC
2488, and HeFa 1/NGC 6067. A number of additional potential associations
between planetary nebulae and open clusters is tabulated for reference
purposes. It is noteworthy that the strongest cases involve planetary nebulae
lying in cluster coronae, a feature also found for short-period cluster
Cepheids, which are themselves potential progenitors of planetary nebulae.Comment: Accepted for publication in PASP (December 2007
Peculiar Features of the Velocity Field of OB Associations and the Spiral Structure of the Galaxy
Some of the peculiar features of the periodic velocity-field structure for OB
associations can be explained by using the model of Roberts and Hausman (1984),
in which the behavior of a system of dense clouds is considered in a perturbed
potential. The absence of statistically significant variations in the azimuthal
velocity across the Carina arm, probably, results from its sharp increase
behind the shock front, which is easily blurred by distance errors. The
existence of a shock wave in the spiral arms and, at the same time, the
virtually free motion of OB associations in epicycles can be reconciled in the
model of particle clouds with a mean free path of 0.2-2 kpc. The velocity field
of OB associations exhibits two appreciable nonrandom deviations from an ideal
spiral pattern: a 0.5-kpc displacement of the Cygnus- and Carina-arm fragments
from one another and a weakening of the Perseus arm in quadrant III. However,
the identified fragments of the Carina, Cygnus, and Perseus arms do not belong
to any of the known types of spurs.Comment: 14 pages, 3 postscript figures, to be published in Astronomy Letter
Photometric study of open clusters Berkeley 96, Berkeley 97, King 12, NGC 7261, NGC 7296, and NGC 7788
The BVRcIc CCD photometry in the fields of six open clusters toward the
Perseus spiral arm is presented. These data along with JHKs magnitudes taken
from 2MASS catalog, have been used to determine cluster's ages, distances and
color excesses. In addition, the gaps in mass function of Be 97, King 12 and
NGC 7788 clusters have been revealed in mass intervals of 1.3-1.5, 1.4-1.6 and
1.5-1.7 solar masses, respectively.Comment: 11 pages, 12 figure
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