Results 101 to 110 of about 208,454 (264)

MHD Simulation in Galactic Center Region with Radiative Cooling and Heating

The Astrophysical Journal
We investigate the role of magnetic field on the gas dynamics in a galactic bulge region by three-dimensional simulations with radiative cooling and heating.
Kensuke Kakiuchi, Takeru. K. Suzuki, Shu-ichiro Inutsuka, Tsuyoshi Inoue, Jiro Shimoda   +4 more
doaj   +1 more source

Estimating Finite Source Effects in Microlensing Events due to Free-Floating Planets with the Euclid Survey

Advances in Astronomy, 2015
In recent years free-floating planets (FFPs) have drawn a great interest among astrophysicists. Gravitational microlensing is a unique and exclusive method for their investigation which may allow obtaining precious information about their mass and ...
Lindita Hamolli, Mimoza Hafizi, Francesco De Paolis, Achille A. Nucita   +3 more
doaj   +1 more source

A Catalogue of Be Stars in the Direction of the Galactic Bulge

, 2007
Detailed studies of Be stars in environments with different metallicities like the Magellanic Clouds or the Galactic bulge are necessary to understand the formation and evolution mechanisms of the circumstellar disks.
., García, J. A., Gieren, W., Kolaczkowski, Z., Mennickent, R. E., Pietrzyński, G., Sabogal, B. E.   +6 more
core   +1 more source

Kinematics of the Galactic Globular Cluster System: New Radial Velocities for Clusters in the Direction of the Inner Galaxy [PDF]

, 1999
HIRES on the Keck I telescope has been used to measure the first radial velocities for stars belonging to eleven, heavily-reddened globular clusters in the direction of the inner Galaxy.
Alcaino G., Alcaino G., Barbuy B., Bica E., Bica E., Binney J., Binney J., Burton W. B., de Jong R. S., Frenk C. S., Frenk C. S., Fux R., Ibata R., Kent S. M., King I. R., Kinman T. D., Minniti D., Ojha D. K., Ortolani S., Ortolani S., Ortolani S., Patrick Côté, Woltjer L., Zhao H.   +23 more
core   +2 more sources

The Blanco DECam Bulge Survey (BDBS) VIII: Chemo-kinematics in the southern Galactic bulge from 2.3 million red clump stars with Gaia DR3 proper motions [PDF]

, 2023
Tommaso Marchetti, Meridith Joyce, Christian I. Johnson, R. Michael Rich, W. I. Clarkson, Andrea Kunder, Iulia T. Simion, C. A. Pilachowski   +7 more
openalex   +1 more source

Inner Magnetospheric and Geomagnetic Responses to Solar Wind Driving During Omega Band Events

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract Omega bands are mesoscale auroral structures that appear as quasi‐periodic eastward drifting protrusions of the poleward edge of the diffuse aurora. Cribb et al. (2024), https://doi.org/10.1029/2024gl109756 demonstrated that the appearance of omega bands is associated with solar wind driving consistent with stream interaction regions. However,
V. Cribb, T. I. Pulkkinen, L. Kepko, B. Gallardo‐Lacourt, N. Partamies, M. Vokhmyanin, S. Apatenkov   +6 more
wiley   +1 more source

OGLE-2014-BLG-1760: A Jupiter–Sun Analogue Residing in the Galactic Bulge

The Astronomical Journal
We present the analysis of OGLE-2014-BLG-1760, a planetary system in the galactic bulge. We combine Keck Adaptive Optics follow-up observations in K -band with re-reduced light-curve data to confirm the source and lens star identifications and stellar ...
Natalia E. Rektsini, Clément Ranc, Naoki Koshimoto, Jean-Philippe Beaulieu, David P. Bennett, Andrew A. Cole, Sean K. Terry, Aparna Bhattacharya, Étienne Bachelet, Ian A. Bond, Andrzej Udalski, Joshua W. Blackman, Aikaterini Vandorou, Thomas J. Plunkett, Jean-Baptiste Marquette   +14 more
doaj   +1 more source

Metallicity of Red Giants in the Galactic Bulge from Near-Infrared Spectroscopy

, 2000
We present K-band spectra of more than 110 M giants in Galactic bulge fields interior to -4 degrees and as close as 0.2 degrees of the Galactic Center. From the equivalent widths of three features in these spectra, EW(Na),EW(Ca), and EW(CO) we calculate [
Andrew W. Stephens, D. L. DePoy, Jay A. Frogel, Matteucci F., Minniti D., Oliva E., Solange V. Ramírez   +6 more
core   +2 more sources

Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry?

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Recent detections of water ice in the permanently shadowed regions (PSRs) at the lunar poles have reignited scientific and commercial interest in the exploration of Earth's closest neighbor. The frigid temperatures in PSRs operate as cold traps for volatiles and may represent large reservoirs of materials, including water ice and prebiotic ...
Francisca S. Paiva, Silvio Sinibaldi
wiley   +1 more source

Classification of OGLE Variables in Galactic Bulge [PDF]

Journal of Astronomy and Space Sciences, 1997
The miscellaneous variables observed by OGLE Project of searching for dark matter in our Galaxy have been analyzed to find their characteristics. We investigated evolutionary status, shape of light curve, relationship between orbital period and amplitude
Young Woon Kang
doaj