Results 141 to 150 of about 471 (200)

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Perchlorate (ClO4−) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO4− records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO4− record from an Antarctic ice core, revealing two regimes separated around 1980.
Wenzhi Zhou, Su Jiang, Zhe Li, Bo Zhang, Danhe Wang, Dongqi Wang, Guitao Shi   +6 more
wiley   +1 more source

A direct black-hole mass measurement in a little red dot at high redshift. [PDF]

Nature
Juodžbalis I, Marconcini C, D'Eugenio F, Maiolino R, Marconi A, Übler H, Scholtz J, Ji X, Jones GC, Perna M, Arribas S, Bennett JS, Bromm V, Bunker AJ, Carniani S, Charlot S, Cresci G, Dayal P, Egami E, Fabian A, Inayoshi K, Isobe Y, Ivey LR, Koudmani S, Laporte N, Liu B, Lyu J, Mazzolari G, Monty S, Parlanti E, Pérez-González PG, Robertson B, Schneider R, Sijacki D, Tacchella S, Trinca A, Valiante R, Volonteri M, Witstok J, Zhang S.   +39 more
europepmc   +1 more source

Cosmic Radiation Dose‐Rates for Civil Aviation in the Middle East: Vertical Structure, Solar Modulation, and Comparison With Models

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 17, 16 September 2026.
Abstract High‐altitude balloon measurements were conducted over southern Israel (30°35′N, 34°45′E; 850 m a.s.l., geomagnetic rigidity cutoff 10.3 GV) to characterize the vertical profiles of atmospheric ionization and radiation up to ∼35 km. Six balloon launches between October 2014 and August 2016 recorded the variability of atmospheric ionization ...
Roy Yaniv, Yoav Yair, Colin Price
wiley   +1 more source

Formation of a low-mass galaxy from star clusters in a 600-million-year-old Universe. [PDF]

Nature
Mowla L, Iyer K, Asada Y, Desprez G, Tan VYY, Martis N, Sarrouh G, Strait V, Abraham R, Bradač M, Brammer G, Muzzin A, Pacifici C, Ravindranath S, Sawicki M, Willott C, Estrada-Carpenter V, Jahan N, Noirot G, Matharu J, Rihtaršič G, Zabl J.   +21 more
europepmc   +1 more source

f(Q) gravity as a possible resolution of the H₀ and S₈ tensions with DESI DR2. [PDF]

Sci Rep
Kavya NS, Swagat Mishra S, Sahoo PK.
europepmc   +1 more source

Structure and stellar content of dwarf elliptical galaxies

The Astronomical Journal, 1983
openaire   +1 more source

Evidence for a sub-Jovian planet in the young TWA 7 disk. [PDF]

Nature
Lagrange AM, Wilkinson C, Mâlin M, Boccaletti A, Perrot C, Matrà L, Combes F, Beust H, Rouan D, Chomez A, Milli J, Charnay B, Mazevet S, Flasseur O, Olofsson J, Bayo A, Kral Q, Carter A, Crotts KA, Delorme P, Chauvin G, Thebault P, Rubini P, Kiefer F, Radcliffe A, Mazoyer J, Bodrito T, Stasevic S, Langlois M.   +28 more
europepmc   +1 more source

Witnessing the onset of reionization through Lyman-α emission at redshift 13. [PDF]

Nature
Witstok J, Jakobsen P, Maiolino R, Helton JM, Johnson BD, Robertson BE, Tacchella S, Cameron AJ, Smit R, Bunker AJ, Saxena A, Sun F, Alberts S, Arribas S, Baker WM, Bhatawdekar R, Boyett K, Cargile PA, Carniani S, Charlot S, Chevallard J, Curti M, Curtis-Lake E, D'Eugenio F, Eisenstein DJ, Hainline KN, Jones GC, Kumari N, Maseda MV, Pérez-González PG, Rinaldi P, Scholtz J, Übler H, Williams CC, Willmer CNA, Willott C, Zhu Y.   +36 more
europepmc   +1 more source

Solving the cooling flow problem with combined jet-wind AGN feedback. [PDF]

Sci Adv
He A, Yuan F, Ji S, Guo M, Li Y, Xu H, Sun M, Xia H, Zhao Y.   +8 more
europepmc   +1 more source

Spectroscopic confirmation of two luminous galaxies at a redshift of 14. [PDF]

Nature
Carniani S, Hainline K, D'Eugenio F, Eisenstein DJ, Jakobsen P, Witstok J, Johnson BD, Chevallard J, Maiolino R, Helton JM, Willott C, Robertson B, Alberts S, Arribas S, Baker WM, Bhatawdekar R, Boyett K, Bunker AJ, Cameron AJ, Cargile PA, Charlot S, Curti M, Curtis-Lake E, Egami E, Giardino G, Isaak K, Ji Z, Jones GC, Kumari N, Maseda MV, Parlanti E, Pérez-González PG, Rawle T, Rieke G, Rieke M, Del Pino BR, Saxena A, Scholtz J, Smit R, Sun F, Tacchella S, Übler H, Venturi G, Williams CC, Willmer CNA.   +44 more
europepmc   +1 more source