Results 91 to 100 of about 35,709 (214)

GRBs and the 511 keV emission of the Galactic bulge

, 2004
We consider the phenomenology of the 511 keV emission in the Galactic bulge, as recently observed by INTEGRAL, and propose a model is which the positrons are produced by gamma-ray bursts (GRB) associated with mini starbursts in the central molecular zone
Cassé, M., Lehoucq, R., Parizot, E., Paul, J.   +3 more
core   +3 more sources

Meissner Effect and Nonreciprocal Charge Transport in Non‐Topological 1T‐CrTe2/FeTe Heterostructures

Advanced Materials, Volume 38, Issue 14, 6 March 2026.
This work demonstrates interface‐induced superconductivity (Tc ∼12 K) with a robust Meissner effect and pronounced nonreciprocal transport in epitaxial 1T‐CrTe2/FeTe heterostructures, where 1T‐CrTe2 is a 2D ferromagnet, and FeTe is an antiferromagnetic metal.
Zi‐Jie Yan, Ying‐Ting Chan, Wei Yuan, Annie G. Wang, Hemian Yi, Zihao Wang, Lingjie Zhou, Hongtao Rong, Deyi Zhuo, Ke Wang, John Singleton, Laurel E. Winter, Weida Wu, Cui‐Zu Chang   +13 more
wiley   +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

The Galactic bulge exploration

Astronomy & Astrophysics
We present a new set of period–absolute magnitude–metallicity (PMZ) relations for single-mode RR Lyrae stars calibrated for the optical GBP, V, G, GRP, near-infrared I, J, H, and Ks passbands. We compiled a large dataset (over 100 objects) of fundamental and first-overtone RR Lyrae pulsators consisting of mean intensity magnitudes, reddenings ...
Z. Prudil, A. Kunder, I. Dékány, A. J. Koch-Hansen   +3 more
openaire   +1 more source

The Bochum Survey of the Southern Galactic Disk: III. Complete Data Release

Astronomische Nachrichten, Volume 347, Issue 3, March 2026.
ABSTRACT The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6°$$ {6}^{{}^{\circ}} $$‐wide stripe in the southern Galactic disk with simultaneous observations in r′$$ {r}^{\prime } $$ and i′$$ {i}^{\prime } $$ (7m≲r′,i′≲18m$$ {7}^{\mathrm{m}}\lesssim {r}^{\prime },{i}^{\prime}\lesssim {18}^{\mathrm{m}} $$) from September ...
Julia Blex, Moritz Hackstein, Christian Westhues, Michael Ramolla, Markus Demleitner, Dominik J. Bomans, Kerstin Weis, Christofer Fein, Rolf Chini   +8 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

The Galactic Bulge

, 2019
We will revise different aspects of the Galactic bulge, including in particular metallicities and ages of its stellar content. A few ideas on the Galactic bulge formation will also be discussed.
openaire   +1 more source

Broad‐Spectral Response Lead Halide Perovskite Solar Cells Through Integration of Multifunctional Organic Bulk‐Heterojunction and Quantum‐Cutting Downconversion Materials

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Expanding near‐infrared (NIR) spectral response and utilizing ultraviolet (UV) photons are effective strategies for enhancing the power conversion efficiency (PCE) of lead halide perovskite solar cells (PSCs). However, the range of NIR spectral response extension and the utilization of UV light for devices are not enough, and the loss of ...
Li He, Sheng Ma, Yusong Zhou, Haotian Zhang, Dezhao Zhang, Hongzhen Su, Lei Wang, Xinjun Li, Hong Liu, Wenzhong Shen   +9 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

The Optical Gravitational Lensing Experiment. Is Interstellar Extinction Toward the Galactic Center Anomalous?

, 2002
Photometry of the Galactic bulge, collected during the OGLE-II microlensing search, indicates high and non-uniform interstellar extinction toward the observed fields.
A. Udalski, Mizerski T., Ortolani S., Paczynski B., Paczynski B., Schultheis M., Stanek K. Z., Udalski A., Udalski A.   +8 more
core   +1 more source