The case for a 3 – 5 micron Large-Scale Survey for the LMC/SMC and Galactic Bulge/ Galactic Center Region from Dome C in the Antarctic Summer season

2007 ◽  
Vol 25 ◽  
pp. 183-186 ◽  
Author(s):  
H. Zinnecker ◽  
M.I. Andersen ◽  
S. Correia
Keyword(s):  
Large Scale ◽  
Galactic Center ◽  
Summer Season ◽  
Galactic Bulge ◽  
Center Region ◽  
Large Scale Survey ◽  
The Antarctic

A review of the chemical abundances and kinematics of the Galactic bulge

2013 ◽  
Vol 9 (S298) ◽  
pp. 28-39 ◽  
Author(s):  
Livia Origlia
Keyword(s):  
Galactic Center ◽  
State Of The Art ◽  
Complex Structure ◽  
Stellar Populations ◽  
Galactic Bulge ◽  
Future Perspectives ◽  
Chemical Abundances ◽  
Center Region ◽  
Infrared Surveys

AbstractThis review will attempt to draw a state of the art observational picture of the Galactic bulge. The main chemical, kinematic and evolutionary properties of the gas and stellar populations in the barred bulge and towards the Galactic center region will be discussed in the context of the possible formation scenarios. Future perspectives for our comprehension of the complex structure of the Galactic bulge from ongoing and foreseen optical and infrared surveys will be also highlighted.

scholarly journals A large scale CO survey of the Galactic center region

1997 ◽  
Vol 125 (1) ◽  
pp. 99-138 ◽  
Author(s):  
M. Bitran ◽  
H. Alvarez ◽  
L. Bronfman ◽  
J. May ◽  
P. Thaddeus
Keyword(s):  
Large Scale ◽  
Galactic Center ◽  
Center Region

scholarly journals Molecular Clouds in the Central 100-pc of the Galactic Center

1989 ◽  
Vol 136 ◽  
pp. 135-140 ◽  
Author(s):  
M. Tsuboi ◽  
T. Handa ◽  
M. Inoue ◽  
J. Inatani ◽  
N. Ukita
Keyword(s):  
Molecular Clouds ◽  
Large Scale ◽  
Galactic Center ◽  
Galactic Latitude ◽  
Center Region ◽  
Elliptical Shape ◽  
Latitude Region ◽  
Galactic Longitude

We have observed CS (J=1–0/2–1) lines in a 60′×30′(1×b) area of the Galactic center region. There are two large-scale features with elliptical shape in the position–velocity maps, which suggest shell–like structures in the region. One is the ring with a radius of ~40 pc in the positive galactic latitude region and another is the shell with a radius of ~20 pc in the negative galactic longitude region. These could be due to suggest star bursts occurred in the Galactic center region.

scholarly journals Large-scale extraplanar PAH emission in the Galactic center region found by AKARI mid-infrared all-sky survey

2014 ◽  
Author(s):  
Toru Kondo ◽  
Hidehiro Kaneda ◽  
Daisuke Ishihara ◽  
Shinki Oyabu ◽  
Mitsuyoshi Yamagishi ◽  
...  
Keyword(s):  
Large Scale ◽  
Galactic Center ◽  
Mid Infrared ◽  
Center Region ◽  
Sky Survey

scholarly journals A Large-Scale CO Imaging of the Galactic Center

1998 ◽  
Vol 179 ◽  
pp. 189-190
Author(s):  
T. Oka ◽  
T. Hasegawa ◽  
F. Sato ◽  
H. Yamasaki ◽  
M. Tsuboi ◽  
...  
Keyword(s):  
Star Formation ◽  
Large Scale ◽  
Galactic Center ◽  
Galactic Disk ◽  
Molecular Gas ◽  
Physical Conditions ◽  
Relative Paucity ◽  
Center Region ◽  
Star Formation Activity

Molecular gas in the Galactic center region is spatially and kinematically complex, and its physical conditions are distinctively different from those of molecular gas in the Galactic disk (e.g., Morris 1996). Relative paucity of current star formation activity, despite the abundance of dense molecular gas in this region, is one of the problem at issue.

scholarly journals Mass Spectrum of the Galactic Center Molecular Clouds

2001 ◽  
Vol 205 ◽  
pp. 356-357
Author(s):  
Atsushi Miyazaki ◽  
Masato Tsuboi
Keyword(s):  
Mass Spectrum ◽  
Molecular Clouds ◽  
Large Scale ◽  
Galactic Center ◽  
Molecular Line ◽  
Center Region ◽  
Cloud Cores

We have observed three molecular clumps in the Galactic center region in the CS J=2-1 line with the Nobeyama Millimeter Array. We have determined the mass spectrum and other statistical relations for the Galactic center cloud cores. The derived mass spectrum is somewhat steeper than for galactic cloud cores based on molecular line observations. In addition, the spectrum is steeper than that of the large scale Galactic center clumps.

scholarly journals A novel analytical model of the magnetic field configuration in the Galactic center

2020 ◽  
Vol 644 ◽  
pp. A71
Author(s):  
M. Guenduez ◽  
J. Becker Tjus ◽  
K. Ferrière ◽  
R.-J. Dettmar
Keyword(s):  
Magnetic Field ◽  
Large Scale ◽  
Field Model ◽  
Galactic Center ◽  
Cosmic Ray ◽  
Field Structure ◽  
Magnetic Field Structure ◽  
Center Region ◽  
Magnetic Field Model ◽  
The Magnetic Field

Context. Cosmic-ray propagation is strongly dependent on the large-scale configuration of the Galactic magnetic field. In particular, the Galactic center region provides highly interesting cosmic-ray data from gamma-ray maps and it is clear that a large fraction of the cosmic rays detected at Earth originate in this region of the Galaxy. Yet because of confusion from line-of-sight integration, the magnetic field structure in the Galactic center is not well known and no large-scale magnetic field model exists at present. Aims. In this paper, we develop a magnetic field model, derived from observational data on the diffuse gas, nonthermal radio filaments, and molecular clouds. Methods. We derive an analytical description of the magnetic field structure in the central molecular zone by combining observational data with the theoretical modeling of the basic properties of magnetic fields. Results. We provide a first description of the large-scale magnetic field in the Galactic center region. We present first test simulations of cosmic-ray propagation and the impact of the magnetic field structure on the cosmic-ray distribution in the three dimensions. Conclusions. Our magnetic field model is able to describe the main features of polarization maps; it is particularly important to note that they are significantly better than standard global Galactic magnetic field models. It can also be used to model cosmic-ray propagation in the Galactic center region more accurately.

Large-scale Rossby waves in the Antarctic stratosphere

2010 ◽  
Vol 16 (5) ◽  
pp. 5-11
Author(s):  
A.V. Agapitov ◽  
◽  
A.V. Grytsai ◽  
D.A. Salyuk ◽  
◽  
...  
Keyword(s):  
Large Scale ◽  
Rossby Waves ◽  
The Antarctic

scholarly journals Occurrence and Molecular Variability of Kiwifruit Viruses in Actinidia deliciosa ‘Xuxiang’ in the Shaanxi Province of China

Plant Disease ◽  
2019 ◽  
Vol 103 (6) ◽  
pp. 1309-1318 ◽  
Author(s):  
Lei Zhao ◽  
Wen Yang ◽  
Yuanle Zhang ◽  
Zhanmin Wu ◽  
Qiao-Chun Wang ◽  
...  
Keyword(s):  
Large Scale ◽  
Primary Source ◽  
Potato Virus X ◽  
Shaanxi Province ◽  
Multiple Infection ◽  
First Report ◽  
Molecular Variability ◽  
Large Scale Survey ◽  
Actinidia Spp ◽  
Main Producer

Kiwifruit (Actinidia spp.) is an economically substantial fruit crop with China the main producer. China is the primary source of wild kiwifruit and the largest producer of kiwifruit in terms of both production and planting area, and Shaanxi province is the largest kiwifruit producer in China. Previous studies reported presence of kiwifruit viruses in Actinidia chinensis. In this study, six viruses were identified in kiwifruit ‘Xuxiang’ (A. deliciosa) in Shaanxi, China. The incidence, distribution, and genetic diversity of these viruses were studied. The results showed that Actinidia virus A (AcVA), Actinidia virus B (AcVB), Actinidia chlorotic ringspot-associated virus (AcCRaV), cucumber mosaic virus (CMV), apple stem grooving virus (ASGV), and potato virus X (PVX) were the main viruses infecting Xuxiang kiwifruit in Shaanxi, China. Incidence of the various viruses with both single and multiple infection varied with different kiwifruit-growing counties. For single virus infection, the highest and the lowest numbers of samples infected were about 22 for AcCRaV and 0 for AcVB in Meixian out of 170 samples, 12 for AcVA and 0 for CMV in Zhouzhi out of 120 samples, 10 for AcVA and 0 for AcVB, AcCRaV, ASGV, PVX, and CMV in Yangling out of 70 samples, and 8 for AcCRaV and CMV and 0 for AcVA, AcVB, ASGV, and PVX in Hanzhong out of 80 samples, respectively. Samples which were multiply infected with two or more viruses were also detected. Analysis of the phylogenetic tree of these viruses showed some genetic variability in the AcVA, AcVB, and AcCRaV isolates of Shaanxi kiwifruit. There was no obvious molecular variation in the coat protein genes of ASGV, CMV, and PVX virus isolates from Shaanxi kiwifruit. The present study is the first large-scale survey of kiwifruit viruses in Shaanxi, China. To our knowledge, this is the first report of PVX infecting kiwifruit and the first report of molecular variability of AcVA, AcVB, and AcCRaV. These results provide important data for studying the genetic evolution of AcVA, AcVB, AcCRaV, ASGV, CMV, and PVX.

Sign in / Sign up

Export Citation Format

Share Document