Results 61 to 70 of about 153,252 (195)

SOFIA/FORCAST Galactic Center Source Catalog

The Astrophysical Journal
The central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies; consequently, the inner ∼400 pc have been the target of numerous large surveys at all accessible wavelengths.
Angela S. Cotera, Matthew J. Hankins, SOFIA Galactic Center Legacy Project, John Bally, Ashley T. Barnes, Cara D. Battersby, H. Perry Hatchfield, Terry L. Herter, Ryan M. Lau, Steven N. Longmore, Elisabeth A. C. Mills, Mark R. Morris, James T. Radomski, Janet P. Simpson, Zachary Stephens, Daniel L. Walker   +15 more
doaj   +1 more source

Surveys Of The Galactic Center And The Nature Of The Galactic Center Lobe

, 2007
{"references": ["Afflerbach, A. Churchwell, E., Acord, J. M., Hofner, P., Kurtz, S., & Dupree, C. G. 1996, ApJS,", "106, 423", "Aharonian, F., et al. 2006, Nature, 439, 695", "Allmandola, L. J., Tielens, A. G. G. M., & Barker, J. R. 1989, ApJS, 71, 733", "Altenhoff, W. J., Downes, D., Pauls, T., & Schraml, J. 1979, A&AS, 35, 23", "Anish
openaire   +2 more sources

RELATIVISTIC SIGNATURES AT THE GALACTIC CENTER [PDF]

Dark Matter in Astrophysics and Particle Physics, 2009
Studies of the inner few parsecs at the Galactic Centre provide evidence of a supermassive black hole, associated with the unusual, variable radio and infrared source Sgr A*. Our major aim is the study and analysis of the physical processes responsible for the variable emission from the compact radio source Sgr A*.
openaire   +2 more sources

On the origin of young stars at the Galactic center [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractThe center of our Galaxy is home to a massive black hole, Sgr A*, and a nuclear star cluster containing stellar populations of various ages. While the late type stars may be too old to have retained memory of their initial orbital configuration, and hence formation mechanism, the kinematics of the early type stars should reflect their original ...
Madigan, A., Pfuhl, O., Levin, Y., Gillessen, S., Genzel, R., Perets, H.   +5 more
openaire   +3 more sources

The Galactic center X-ray transients AX J1745.6-2901 and GRS 1741-2853

, 2013
AX J1745.6-2901 and GRS 1741-2853 are two transient neutron star low-mass X-ray binaries that are located within ~10' from the Galactic center. Multi-year monitoring observations with the Swift/XRT has exposed several accretion outbursts from these ...
Degenaar, N., Gehrels, N., Kennea, J., Miller, J. M., Reynolds, M. T., Wijnands, R.   +5 more
core   +1 more source

Oxygen, $\alpha$-element and iron abundance distributions in the inner part of the Galactic thin disc. II [PDF]

, 2016
We have derived the abundances of 36 chemical elements in one Cepheid star, ASAS 181024--2049.6, located R$_{\rm G}= 2.53$ kpc from the Galactic center. This star falls within a region of the inner thin disc poorly sampled in Cepheids.
Andrievsky, S. M., Korotin, S. A., Kovtyukh, V. V., Lépine, J. R. D., Martin, R. P.   +4 more
core   +2 more sources

The Interaction between Stars and Past AGN Disk: Possible Explanation for the Kinematic Distributions of S-stars in the Galactic Center

The Astrophysical Journal
The presence of young stars, aged around several million years and situated within the range of ∼0.04–1 pc from our Galactic center raises a question about their origins and dynamical evolutions.
Xiao Fan, Qingwen Wu, Jiancheng Wu, Xiangli Lei, Mengye Wang, Fulin Li   +5 more
doaj   +1 more source

Weighing the Milky Way

, 2002
We describe an experiment to measure the mass of the Milky Way galaxy. The experiment is based on calculated light travel times along orthogonal directions in the Schwarzschild metric of the Galactic center. We show that the difference is proportional to
Angelo Tartaglia, Ashby N, Ashfaque H Bokhari, Boyer R H, Dicke R M, Gron Ø, Hay H J, Krisher T P, Manasse F K, Martin J L, Moreau W, Munawar Karim, Ohanian H C, Synge J L, Taylor C T   +14 more
core   +1 more source

Finding Radio Pulsars in and Beyond the Galactic Center [PDF]

, 1996
Radio-wave scattering is enhanced dramatically for Galactic center sources in a region with radius >~ 15 arc min. Using scattering from Sgr A* and other sources, we show that pulse broadening for pulsars in the Galactic center is {\em at least} 6.3 \nu^{-
Anantharamaiah K. R., Bertelli G., Biggs J., Catchpole R. M., Clifton T. R., Davies R. D., Fabian A. C., Gray A. D., Izvekova V. A., James M. Cordes, Johnston S., Kahn F. D., Kramer M., Lorimer D. R., Lorimer D. R., Lyne A. G., Lyne A. G., Malofeev V. M., Meynet G., Narayan R., Predehl P., Schwarz U. J., Seiradakis J. H., T. Joseph W. Lazio, Wex N., Wilkinson P. N., Williamson I. P., Williamson I. P., Xilouris K. M.   +28 more
core   +2 more sources

Mapping the Galactic halo with main-sequence and RR Lyrae stars

EPJ Web of Conferences, 2012
We present an analysis of Galactic halo structure, substructure, and metallicity traced by main-sequence and RR Lyrae stars selected from the SDSS stripe 82 and CFHT Legacy Survey data sets.
Sesar B.
doaj   +1 more source