Results 111 to 120 of about 26,504 (226)

Accurate determination of chemical abundances near a supermassive black hole. [PDF]

Nat Astron
XRISM Collaboration.
europepmc   +1 more source

Revisiting Variable Stars Toward the Globular Cluster NGC 6496 With ATLAS and Gaia Photometry

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We revisit 13 variable stars in the field of the metal‐rich globular cluster NGC 6496, discovered by Abbas et al. (2015; Astronomical Journal 149:40) (hereafter referred to as “MA15”) via time‐series data, spanning 2 years. We improve upon the MA15 characterization of the variables using ATLAS time‐series photometry data, spanning 8 years, in ...
Madison E. Martin, Andrew Layden, Andrew McNeill   +2 more
wiley   +1 more source

A Large and Precise All-Sky Photometric Standard Star Dataset Across More Than 200 Passbands. [PDF]

Sci Data
Xiao K, Huang Y, Yuan H, Huang B, Fan D, Beers TC, Li Z, Han H, Zhang Q, Wang T, Ma M, Wang Y, Xu S, Yang L, Liu J.   +14 more
europepmc   +1 more source

Perturbative Analytical Construction of Bowen–York Initial Data for Binary Black Holes up to Third Order in Spin and Linear Momentum

Fortschritte der Physik, Volume 74, Issue 8, August 2026.
ABSTRACT We analytically construct initial data for binary black hole systems by solving the Einstein constraint equations within the Bowen–York framework. Allowing for arbitrarily oriented linear momenta and spins, we obtain a perturbative solution of the vacuum Hamiltonian constraint up to third order in the source parameters. Our solution explicitly
Leyla Ogurol, Tore Boybeyi, Bayram Tekin
wiley   +1 more source

Evidence for the gravity-driven and magnetically regularized gas flows feeding the massive protostellar cluster in Cepheus A. [PDF]

Sci Adv
Sandhyarani P, Eswaraiah C, Li D, Vázquez-Semadeni E, Gómez GC, Thieme TJ, Samal MR, Wang JW, Lai SP, Chen WP, Ojha DK.   +10 more
europepmc   +1 more source

Remote Sensing During the 2025 Los Angeles Wildfires

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract The January 2025 Los Angeles County wildfires burned more than 50,000 acres, destroyed more than 16,000 structures, and caused 31 deaths. This Commentary examines how NASA's Disasters Program coordinated with response organizations to deliver 22 satellite and airborne products during the fires, even as the Eaton Fire forced the Jet Propulsion ...
Julie Rolla, Kimberley Miner, Clayton Elder, Eric Howard, Julia Milton, Nathan Spangler   +5 more
wiley   +1 more source

Detection of disk-jet coprecession in a tidal disruption event. [PDF]

Sci Adv
Wang Y, Lin Z, Wu L, Lei WH, Wei S, Zhang SN, Ji L, Del Palacio S, Baldi RD, Huang Y, Liu JF, Zhang B, Yang A, Chen RR, Zhang Y, Wang AL, Yang L, Charalampopoulos P, Williams-Baldwin DRA, Yao ZH, Xie FG, Bu D, Feng H, Cao X, Wu H, Li W, Qiao E, Leloudas G, Anderson JP, Shu X, Pasham DR, Zou H, Nicholl M, Wevers T, Müller-Bravo TE, Wang J, Wei JY, Qiu YL, Guo WJ, Gutiérrez CP, Gromadzki M, Inserra C, Makrygianni L, Onori F, Petrushevska T, Altamirano D, Galbany L, Peréz-Torres M, Chen TW.   +48 more
europepmc   +1 more source

Recent History of Surface Ocean Acidification Extremes That Compound Marine Heatwaves

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract Compound extremes are of concern for ocean health, such as when ocean acidification extremes (OAX) and marine heatwaves (MHW) co‐occur. These compound events (OAX∩ $\,\cap \,$MHW) may amplify stress beyond the impact of each driver alone, yet their historical distribution remains poorly quantified.
Luke Gregor, Nicolas Gruber
wiley   +1 more source

Widespread Increase in Global Plant Water Stress Obscured by Greening

AGU Advances, Volume 7, Issue 4, August 2026.
Abstract Understanding the vulnerability of plants to more severe and frequent drought events and developing adaptive management strategies requires robust methods for quantifying long‐term changes in plant water stress (PWS). Most data‐driven explorations of long‐term trends in PWS have focused on alterations in canopy structure (e.g., leaf area index)
Qing Chang, Lixin Wang, Mallory L. Barnes, Darren L. Ficklin, Michael C. Benson, Kimberly A. Novick   +5 more
wiley   +1 more source

CrossDI: A comprehensive dataset crossing three databases for calculating disruption indexes. [PDF]

Sci Data
Xu S, Wang C, An X, Liu J.
europepmc   +1 more source