Results 71 to 80 of about 4,353 (224)

Discovery of Millisecond Pulsars toward the Galactic Bulge in an Image-based Survey with MeerKAT

The Astrophysical Journal
We report on the follow-up observations of circularly polarized sources identified in the MeerKAT image-based survey of the Galactic bulge. Using the Parkes radio telescope, we observed 16 circularly polarized sources with the Ultra-Wideband Low receiver
Rahul Sengar, Akash Anumarlapudi, David L. Kaplan, Dale A. Frail, Scott D. Hyman, Emil Polisensky   +5 more
doaj   +1 more source

Transiting Exoplanet Yields for the Roman Galactic Bulge Time Domain Survey Predicted from Pixel-level Simulations

The Astrophysical Journal Supplement Series, 2023
The Nancy Grace Roman Space Telescope (Roman) is NASA’s next astrophysics flagship mission, expected to launch in late 2026. As one of Roman’s core community science surveys, the Galactic Bulge Time Domain Survey (GBTDS) will collect photometric and ...
Robert F. Wilson, Thomas Barclay, Brian P. Powell, Joshua Schlieder, Christina Hedges, Benjamin T. Montet, Elisa Quintana, Iain Mcdonald, Matthew T. Penny, Néstor Espinoza, Eamonn Kerins   +10 more
doaj   +1 more source

Geochemical and Isotopic Constraints on Long‐Lived Source Enrichment and Mantle Evolution in Paleoproterozoic Cratonic Lamprophyres

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The cratonic lithospheric mantle records complex metasomatic processes and is frequently tapped by alkaline magmatism, offering a unique opportunity to trace the progressive evolution of the mantle. In the present contribution, we investigate a newly identified calc‐alkaline lamprophyre field from the Neoarchean Jonnagiri Schist Belt, Eastern ...
Sourav Naskar, Rohit Pandey, Nils Björn Baumann, N. V. Chalapathi Rao, George Mathew, J. Amal Dev, J. K. Tomson   +6 more
wiley   +1 more source

The UV spectrum of the Galactic bulge [PDF]

, 2007
The elliptical galaxies show in their spectra at ultraviolet wavelengths an unexpected flux . SdB (alias called Extreme Horizontal Branch) stars are believed to be responsible of this feature.
Busso, Giorgia
core  

Intrusive Magmatism, Plate Stresses, and the Cause of Orthogonal Versus Oblique Spreading Mid‐Ocean Ridges

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The origin of orthogonally spreading ridge segments separated by oceanic transform faults, versus obliquely spreading ridge segments without transform faults (TFs), is a long‐standing enigma of plate tectonics. We address this problem using three‐dimensional (3D) geodynamic models that simulate axial magmatic intrusions along two ridge ...
Garrett Ito, Jana Schierjott, Mark D. Behn, Xiaochuan Tian, Boris J. P. Kaus, Anton A. Popov   +5 more
wiley   +1 more source

Galactic microlensing : binary-lens light curve morphologies and results from the Rosetta spacecraft bulge survey

, 2014
For 20 years now, gravitational microlensing observations towards the Galactic bulge have provided us with a wealth of information about the stellar and planetary content of our Galaxy, which is inaccessible via other current methods.
Liebig, Christine Elisabeth
core  

The Microlensing Event Rate and Optical Depth from MOA-II 9 Yr Survey Toward the Galactic Bulge

The Astrophysical Journal
We present measurements of the microlensing optical depth and event rate toward the Galactic bulge using the data set from the 2006 to 2014 MOA-II survey, which covers 22 bulge fields spanning ∼42 deg ^2 between −5° 
Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto, Nicholas J. Rattenbury, Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Akihiko Fukui, Ryusei Hamada, Shunya Hamada, Naoto Hamasaki, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Tsutsumi Nagai, Greg Olmschenk, Clement Ranc, Yuki K. Satoh, Daisuke Suzuki, Paul. J. Tristram, Aikaterini Vandorou, Hibiki Yama, (MOA collaboration)   +26 more
doaj   +1 more source

Ice Cloud and Dust Climatologies Over 4 Martian Years From TGO/NOMAD‐UVIS Nadir Retrieval

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract We generate climatologies of ice cloud and dust optical depth derived from the NOMAD/UVIS nadir measurements onboard ExoMars Trace Gas Orbiter (TGO) for almost four Martian Years (MY), from mid MY34 to mid MY38. Our retrieval algorithm has been updated with new results for aerosol models and surface reflectance.
Y. Willame, L. Neary, F. Daerden, M. J. Wolff, J. T. Erwin, I. R. Thomas, S. Robert, J. P. Mason, L. Trompet, A. C. Vandaele, A. Piccialli, N. Pereira, Z. Flimon, C. Depiesse, B. Ristic, M. R. Patel, G. Bellucci, M. A. López‐Valverde   +17 more
wiley   +1 more source

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

EROS light-curve database

Astronomy & Astrophysics
Context. The project called Expérience de Recherche d’Objets Sombres (EROS) carried out photometric surveys of dense stellar fields toward the Magellanic Clouds (LMC and SMC), the Galactic bulge and Galactic spiral arms in the period 1990-2003.
Afonso C., Albert J.-N., Ansari R., Aubourg E., Beaulieu J.-P., Blaineau T., Coutures C., Derue F., Glicenstein J.-F., Goldman B., Hamadache C., Lasserre T., Le Guillou L., Lesquoy E., Magneville C., Mansoux B., Moniez M., Palanque-Delabrouille N., Perdereau O., Rich J., Spiro M., Tisserand P.   +21 more
doaj   +1 more source