Results 31 to 40 of about 2,349 (186)

Astragalus zhobensis, a new species of section Caprini (Fabaceae) from Zhob, northern Balochistan, Pakistan

Nordic Journal of Botany, Volume 2025, Issue 12, December 2025.
A new species Astragalus zhobensis, from Qamardin Karez, Zhob district, northern Balochistan, Pakistan is described and illustrated. The new species is morphologically similar to A. cartilagineus, but can be distinguished by strigose hairs 3–5 mm long, (not stiff 1.5−4.0 mm long hairs); stipules 5–15 mm (not 8−12 mm) long; leaflets in 4–6 pairs, (not 3–
Tahir Khan, Nazar Khan, Amjad Khan, Amir Sultan, Kamran Ishaq   +4 more
wiley   +1 more source

Are the Distribution of Einstein Crossing Times of Galactic Microlensing Events Bimodal? [PDF]

Journal of Astronomy and Space Sciences, 2012
The observed distribution of a blending-corrected sample of Einstein ring crossing times, tE, for microlensing events toward the galactic bulge/bar are analyzed.
Mitchell F. Struble, Thulsi Wickramasinghe   +1 more
doaj   +1 more source

Deep NIR Surveys in the Galactic Plane: A General Overview and the Study of Scutum’s Spiral Arm

Frontiers in Astronomy and Space Sciences, 2021
Despite the impressive advances in Galactic structure studies, thanks to the large astronomical surveys, there remain several open questions. Although at low distances, optical surveys can bring us important information, the potential of NIR surveys ...
E. B. Amôres, R. S. Levenhagen
doaj   +1 more source

A Possible Tsunamigenic Near‐Trench Strike‐Slip Fault, Offshore North Ecuador–South Colombia

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Seismic reflection and bathymetry collected along the Ecuador–Colombia obliquely convergent margin allow the first characterization of the NNE‐trending, near‐trench strike‐slip Ancon Fault in the possible source region of the 1906‐Mw8.6–8.8 and 1979‐Mw8.2 earthquakes, which produced devastating tsunamis.
J.‐Y. Collot, G. Ratzov, F. Michaud, A. Galve, J.‐N. Proust, M. Gonzalez, J.‐F. Lebrun, M. Laigle, B. Marcaillou   +8 more
wiley   +1 more source

New Light on Dark Extended Lenses with the Roman Space Telescope

The Astrophysical Journal Letters
The Roman Space Telescope’s Galactic Bulge Time Domain Survey will constitute the most sensitive microlensing survey of the Galactic bulge to date, opening up new opportunities to search for dark matter (DM). Many extensions of the Standard Model predict
William DeRocco, Nolan Smyth, Volodymyr Takhistov   +2 more
doaj   +1 more source

The Ages of Galactic Bulge Stars with Realistic Uncertainties

The Astrophysical Journal, 2023
Using modern isochrones with customized physics and carefully considered statistical techniques, we recompute the age distribution for a sample of 91 microlensed dwarfs in the Galactic bulge presented by Bensby et al.
Meridith Joyce, Christian I. Johnson, Tommaso Marchetti, R. Michael Rich, Iulia Simion, John Bourke   +5 more
doaj   +1 more source

Variable stars in the residual light curves of OGLE-IV eclipsing binaries towards the Galactic Bulge [PDF]

, 2023
Rozália Z. Ádám, T. Hajdu, Attila Bódi, Róbert Hajdu, T. Szklenár, L. Molnár   +5 more
openalex   +1 more source

Ingestion of GNSS‐Derived‐TEC Into NeQuick 2 Model Over South America

Space Weather, Volume 23, Issue 12, December 2025.
Abstract This study examines the ingestion of total electron content (TEC) data from a network of ground‐based Global Navigation Satellite System (GNSS) receivers into the NeQuick 2 model, providing a benchmark for evaluating the cost‐effectiveness of GNSS data ingestion for near‐real‐time ionospheric specification. A significant reduction in root mean
Taiwo Olusayo Osanyin, Claudia Maria Nicoli Candido, Fabio Becker‐Guedes, Yenca Migoya‐Orue, John Bosco Habarulema   +4 more
wiley   +1 more source

Modeling Asteroseismic Yields for the Roman Galactic Bulge Time-domain Survey

The Astrophysical Journal
The Galactic Bulge Time-Domain Survey (GBTDS) of the Roman Space Telescope will take high-cadence data of the Galactic bulge. We investigate the asteroseismic potential of this survey for red giants.
Trevor J. Weiss, Noah J. Downing, Marc H. Pinsonneault, Joel C. Zinn, Dennis Stello, Timothy R. Bedding, Kaili Cao, Marc Hon, Claudia Reyes, B. Scott Gaudi, Robert F. Wilson, Daniel Huber, Sanjib Sharma   +12 more
doaj   +1 more source

Polar Motion Dynamics on Slow‐Rotating Venus: Signatures of Mantle Flow

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract With its 1 day lasting 243 days on Earth, Venus is the slowest‐spinning planet in the Solar System and its rotational bulge is anomalously small. A rotational bulge stabilizes the orientation of planets. Having only a tiny stabilizer, the rotational pole of Venus has been expected to separate from the figure pole in response to mantle flow ...
Vojtěch Patočka, Julia Maia, Ana‐Catalina Plesa   +2 more
wiley   +1 more source