Results 21 to 30 of about 126,365 (213)

Radio sources in the Chandra Galactic Bulge Survey [PDF]

open access: yes, 2012
We discuss radio sources in the Chandra Galactic Bulge Survey region. By cross-matching the X-ray sources in this field with the NRAO VLA Sky Survey archival data, we find 12 candidate matches.
Maccarone, M.C.   +24 more
core   +3 more sources

Comparing the Galactic Bulge and Galactic Disk Millisecond Pulsars [PDF]

open access: yes, 2020
The Galactic Center Excess (GCE) is an extended gamma-ray source in the central region of the Galaxy found in Fermi Large Area Telescope (Fermi-LAT) data.
Ploeg, Harrison   +7 more
core   +1 more source

Globular Clusters in the Galactic Bulge [PDF]

open access: yesPublications of the Astronomical Society of Australia, 2016
AbstractA view of the Galactic bulge by means of their globular clusters is fundamental for a deep understanding of its formation and evolution. Connections between the globular cluster and field star properties in terms of kinematics, orbits, chemical abundances, and ages should shed light on different stellar population components.
Bica, E., ORTOLANI, SERGIO, Barbuy, B.
openaire   +3 more sources

IS THE GALACTIC BULGE DEVOID OF PLANETS? [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We consider a sample of 31 exoplanetary systems detected by gravitational microlensing and investigate whether or not the estimated distances to these systems conform to the Galactic distribution of planets expected from models.
Matthew T. Penny   +2 more
openaire   +2 more sources

Microlensing search for extra solar planets [PDF]

open access: yes, 2015
Gravitational microlensing may be used to probe distant stars for planetary companions. The presence of a planet in the vicinity of a star acting as the lens may cause a short lived anomaly in the observed lightcurve of the lensing event.
Tsapras, Yiannis
core   +2 more sources

The Contribution of the Galactic Bulge to the Galactic Rotation Curve [PDF]

open access: yesSymposium - International Astronomical Union, 1993
It is not always clear what the bulge of the Galaxy is: a region close to the centre, a subsystem formed by a distinct population, or a mixture of populations but characterised by its own mass distribution. We consider the bulge of the Milky Way as a subsystem and thus contributing to the galactic gravitation field. We want to estimate the contribution
I.V. Petrovskaya, S. Ninković
openaire   +1 more source

Microlensing Towards the Galactic Bulge [PDF]

open access: yesSymposium - International Astronomical Union, 1993
We describe an ongoing survey to search for dark matter via lensing events of stars in the Galactic Bulge. The principal properties of the survey are described, and some preliminary results are shown for newly-discovered variables. We discuss some of the projects related to the study of the Galactic Bulge that can be addressed using these data, and ...
Andrzej Udalski   +7 more
openaire   +1 more source

Infrared Scanning of the Galactic Bulge [PDF]

open access: yesSymposium - International Astronomical Union, 1985
We find values of the interstellar absorption from J, H and K scans of a 6.8 × 200 arcmin strip of sky extending from the Sgr I field to the Galactic Centre. The visual absorption, excluding dark clouds, increases from 3 to 30 magnitudes in this region.
R. M. Catchpole   +2 more
openaire   +1 more source

The UV spectrum of the Galactic Bulge [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractThe aim of this work is to investigate the possible existence of the UV-excess in the Milky Way bulge and its correlation with the presence of sdB stars in the bulge. The integrated spectrum of a bulge region from the UV to the optical was constructed.
Busso, Giorgia, Moehler, Sabine
openaire   +2 more sources

Chemical evolution of the Galactic bulge [PDF]

open access: yes, 2008
4 pages, 2 figures. To appear in "The Metal-Rich Universe", (La Palma, June 2006), eds. G. Israelian and G. Meynet (Cambridge Univ. Press)
Gibson, Brad K.   +3 more
openaire   +2 more sources

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