Results 121 to 130 of about 1,551 (227)

Revealing the Formation of the <20 MeV Inner Proton Radiation Belt at L ∼ 2 During the 10–11 May 2024 Superstorm

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract A new proton radiation belt was identified during the geomagnetic superstorm of 10–11 May 2024. To investigate its origin, we use an MHD‐test particle simulation to model solar energetic proton (SEP) trapping and the evolution of the initial trapped proton population during the storm.
Murong Qin, Mary K. Hudson, Miles Engel, Brian T. Kress, Zhao Li, Maulik Patel, Wen Li, Kevin Pham, William R. Johnston, Xinlin Li, Shawn Young   +10 more
wiley   +1 more source

Winding Back the Clock: Recent Star Formation Histories of Massive Quiescent Galaxies Are Consistent with Their Rapid Number Density Evolution since z ∼ 7

The Astrophysical Journal Letters
Massive quiescent galaxies have been identified out to z  ∼ 7 in early JWST data, substantially exceeding (≳1 dex at z  > 4) the number densities from most theoretical predictions. We investigate whether the number densities implied by the star formation
Yunchong Zhang, Zhiyuan Ji, Rachel Bezanson, Christina C. Williams, Gabriel Brammer, Aidan P. Cloonan, Anna de Graaff, Jenny E. Greene, Michaela Hirschmann, Christian Kragh Jespersen, Gourav Khullar, Claudia del P. Lagos, Joel Leja, Michael V. Maseda, Ian McConachie, Pascal A. Oesch, Sedona H. Price, David J. Setton, Katherine A. Suess, Katherine E. Whitaker   +19 more
doaj   +1 more source

Gas outflows in two recently quenched galaxies at [PDF]

Outflows are a key element in the baryon cycle of galaxies, impacting their evolution by extracting gas, momentum, and energy and then injecting them into the surrounding medium. The properties of gas outflows provide a fundamental test for our models of
Jespersen, C. K., Hamadouche, M., R. Shimakawa, Heintz, K. E., Magdis, Georgios, F. Valentino, A. W. S. Man, Fujimoto, Seiji, Whitaker, K. E., Wu, P. -F., Faisst, A., P. S. Kamieneski, Man, A. W.S., Whitaker, Katherine, K. C. Harrington, Farcy, M., B. L. Frye, V. Kokorev, Shimakawa, R., Wu, P. F., Man, A. W. S., S. Jin, M. Lee, P. -F. Wu, A. Weibel, M. Kubo, K. Ito, M. Onodera, Lee, M., A. Gallazzi, Harrington, K. C., Onodera, M., D. Ceverino, Frye, B. L., Weibel, A., P. Zhu, A. Faisst, A. de Graaff, F. Rizzo, Jin, S., C. d. P. Lagos, C. K. Jespersen, Rizzo, F., Brammer, G., Tanaka, M., Hirschmann, M., Kokorev, V., Kubo, M., Rizzo, F.; id_orcid, Setton, D. J., Gottumukkala, R., Fujimoto, S., M. Hamadouche, gomez, sebastian, Zhu, P., G. Brammer, Jespersen, Christian Kragh, Lagos, C. D.P., Gillman, S., S. Fujimoto, S. Gillman, S. Toft, M. Tanaka, Toft, S., Magdis, G. E., K. E. Whitaker, T. Kakimoto, M. Hirschmann, Kamieneski, P. S., de Graaff, A., Ceverino, D., R. Gottumukkala, Valentino, F., M. Farcy, Ito, K., Kakimoto, T., D. J. Setton, Lagos, C. d. P., K. E. Heintz, G. E. Magdis, Gallazzi, A.   +80 more
core   +1 more source

A Constellation of Fluorescent Biosensors to Illuminate the Galaxy of Protein Kinases

ChemBioChem, Volume 27, Issue 11, 15 June 2026.
Protein kinases (PKs) are enzymes that catalyze phosphorylation of protein substrates involved in a wide variety of biological signalling pathways. This review describes the different families and mechanisms of action and regulation of protein kinases, together with the different classes of fluorescent biosensors that have been engineered and ...
Timothe Abbura, May C. Morris
wiley   +1 more source

Three Quenched, Faint Dwarf Galaxies in the Direction of NGC 300: New Probes of Reionization and Internal Feedback

The Astrophysical Journal Letters
We report the discovery of three faint and ultrafaint dwarf galaxies—Sculptor A, Sculptor B, and Sculptor C—in the direction of NGC 300 ( D = 2.0 Mpc), a Large Magellanic Cloud–mass galaxy.
David J. Sand, Burçin Mutlu-Pakdil, Michael G. Jones, Ananthan Karunakaran, Jennifer E. Andrews, Paul Bennet, Denija Crnojević, Giuseppe Donatiello, Alex Drlica-Wagner, Catherine Fielder, David Martínez-Delgado, Clara E. Martínez-Vázquez, Kristine Spekkens, Amandine Doliva-Dolinsky, Laura C. Hunter, Jeffrey L. Carlin, William Cerny, Tehreem N. Hai, Kristen B.W. McQuinn, Andrew B. Pace, Adam Smercina   +20 more
doaj   +1 more source

Galaxy Quenching and Assembly: A Review

, 2019
A review of observational and theoretical constraints on galaxy assembly and quenching.
openaire   +2 more sources

Slowly Rotating Traversable Wormholes Supported by Radially Varying String‐Fluid Matter: From Regular Geometries to Photon Trajectories

Annalen der Physik, Volume 538, Issue 6, June 2026.
This study examines slowly rotating traversable wormholes supported by string fluids whose properties change with radius. The matter smoothly shifts from a de Sitter‐like core to a string‐dominated exterior, producing a regular, horizon‐free spacetime.
A. Errehymy, B. Turimov, Meraj Ali Khan, S. Usanov, Z. Yasakov, Z. Avezmuratova   +5 more
wiley   +1 more source

The Ancient Star Formation History of the Extremely Low-mass Galaxy Leo P: An Emerging Trend of a Post-reionization Pause in Star Formation

The Astrophysical Journal
Isolated, low-mass galaxies provide the opportunity to assess the impact of reionization on their star formation histories (SFHs) without the ambiguity of environmental processes associated with massive host galaxies.
Kristen B. W. McQuinn, Max J. B. Newman, Evan D. Skillman, O. Grace Telford, Alyson Brooks, Elizabeth A. K. Adams, Danielle A. Berg, Martha L. Boyer, John M. Cannon, Andrew E. Dolphin, Anthony J. Pahl, Katherine L. Rhode, John J. Salzer, Roger E. Cohen, Steve R. Goldman   +14 more
doaj   +1 more source

A massive quiescent galaxy at redshift 4.658. [PDF]

Nature, 2023
Carnall AC, McLure RJ, Dunlop JS, McLeod DJ, Wild V, Cullen F, Magee D, Begley R, Cimatti A, Donnan CT, Hamadouche ML, Jewell SM, Walker S.   +12 more
europepmc   +1 more source

Mapping Immunity With Cutting‐Edge Spatial Biology and Tissue Cytometry Innovations

MedComm, Volume 7, Issue 6, June 2026.
This review explores how spatial biology integrates multiplexed imaging and tissue cytometry to reveal immune organization within native tissue contexts. ABSTRACT The immune system operates within organized tissue landscapes, where spatial relationships between cells shape the nature and outcome of immune responses.
Lilibeth Cárdenas‐Piedra, Selwin G. Samuel, Felicitas Mungenast, Dinesh Yasothkumar, Rupert C. Ecker, Jyotsna Batra   +5 more
wiley   +1 more source