Results 51 to 60 of about 35,709 (214)

Chemical evolution of the Galactic bulge [PDF]

, 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., MacDonald, Angela J., Sanchez-Blazquez, Patricia, Carigi, Leticia   +3 more
openaire   +2 more sources

Radiolysis and Fe‐Biotite Alteration: Questioning the Origin of H2‐Bearing Fluid Inclusions in the Yorke Peninsula Granites, South Australia

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Multiple drillings in the Yorke Peninsula, South Australia, recently confirmed the presence of natural hydrogen (H2) in shallow sedimentary units. While radiolysis and Fe‐oxidation in the basement are potential generation mechanisms, their respective contributions remain unconstrained.
Ugo Geymond, Dan Lévy, Julien Bourdet, Isabelle Martinez, Olivier Sissmann, Sidonie Revillon, Rayanne Gormit, Sylvain Bernard, Pierre‐Henri Blard, David Bekaert, Jimmy Daynac, Stephan Borensztajn, Se Gong, Clément Herviou, Emanuelle Frery, Isabelle Moretti   +15 more
wiley   +1 more source

Composition of Giants 1° North of the Galactic Center: Detailed Abundance Trends for 21 Elements Observed with IGRINS

The Astrophysical Journal
We report the first high-resolution, detailed abundances of 21 elements for giants in the Galactic bulge/bar within 1° of the Galactic plane, where high extinction has rendered such studies challenging. Our high-signal-to-noise-ratio and high-resolution,
Govind Nandakumar, Nils Ryde, Gregory Mace, Kyle F. Kaplan, Niels Nieuwmunster, Daniel Jaffe, R. Michael Rich, Mathias Schultheis, Oscar Agertz, Eric Andersson, Christopher Sneden, Emily Strickland, Brian Thorsbro   +12 more
doaj   +1 more source

A near-infrared stellar atlas of the Galactic plane from the VVVX survey

Astronomy & Astrophysics
Context. The VISTA Variables in the Via Lactea eXtended (VVVX) ESO public survey observed the Galactic plane and the outer Galactic bulge in the near-infrared to mitigate the effects of extinction that severely limit optical observations of these regions.
Alonso-García Javier, Hempel Maren, Saito Roberto K., Minniti Dante, Cross Nicholas J. G., Anais Jorge, Borissova Jura, Catelan Márcio, Fernández-Trincado José G., Garro Elisa R., Guo Zhen, Lucas Philip W., Navarro María G., Obasi Casmir O., Smith Leigh C.   +14 more
doaj   +1 more source

An Attempt to Detect the Galactic Bulge at 12 microns with IRAS

, 1998
Surface brightness maps at 12 microns, derived from observations with the Infrared Astronomical Satellite (IRAS), are used to estimate the integrated flux at this wavelength from the Galactic bulge as a function of galactic latitude along the minor axis.
Habing H. J., Jay A. Frogel, van der Veen W. E. C. J.   +2 more
core   +1 more source

Strong Evidence that the Galactic Bulge is Shining in Gamma Rays [PDF]

, 2019
There is growing evidence that the Galactic Center Excess identified in the $\textit{Fermi}$-LAT gamma-ray data arises from a population of faint astrophysical sources.
Crocker, Roland M., Gordon, Chris, Horiuchi, Shunsaku, Kaplinghat, Manoj, Macias, Oscar, Nataf, David M.   +5 more
core   +2 more sources

Planetary Transits toward the Galactic Bulge [PDF]

The Astrophysical Journal, 2000
4 pages, 4 figures.
openaire   +2 more sources

(Not) On the Map: Story‐Mapping Uncertainties in Syrians' Displacement Between Syria and Tunisia

Antipode, Volume 58, Issue 3, May 2026.
ABSTRACT One way of challenging hegemonic narratives about migration to Europe is to foreground aspects we do not know for certain. Representations of uncertainties point to a challenge to critical migration researchers: how does human movement exceed predictable responses to borders? This is a conceptual, but also an ethical question, as it compels us
Ann‐Christin Zuntz, Joe Zuntz, Asma Ben Hadj Hassen, Marwen Bouneb   +3 more
wiley   +1 more source

The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data

The Astrophysical Journal
We present an analysis of the structure, kinematics, and chemo-dynamical properties of the Milky Way bulge using RR Lyrae stars from Optical Gravitational Lensing Experiment (OGLE), and giant stars from APOGEE and Gaia that have distances placing them in
Xiao Han, Hai-Feng Wang, Giovanni Carraro, Martín López-Corredoira, Yuan-Sen Ting, Yang-Ping Luo, Guan-Yu Wang, (MWLUDPSG Collaboration)   +7 more
doaj   +1 more source

A Novel Technique for Extracting the Tidal Magnetic Field: Methodology and Application to a Pre‐Processed Dataset of CSES and Swarm

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract The oceanic tidal magnetic field, mainly driven by the circular orbital motion of the Moon, is an essential part of the time‐varying geomagnetic field. The previously adopted time‐harmonic (TH) base worked well in fitting the primary M2 ${M}_{2}$ tidal field, but extracting the other weaker modes like the N2 ${N}_{2}$ was difficult with only a
Haoren Ma, Yanyan Yang, Zhaojin Rong, Dongquan Wang, Jiawei Gao, Zeren Zhima, Jie Wang, Bin Zhou, Werner Magnes, Fei He, Y. Wei   +10 more
wiley   +1 more source