Results 71 to 80 of about 8,595 (212)

Constraints on the Observability of Energetic Neutral Atoms From the Magnetosphere‐Atmosphere Interactions at Callisto and Europa

Journal of Geophysical Research: Space Physics, Volume 130, Issue 1, January 2025.
Abstract We investigate the emission of energetic neutral atoms (ENAs) from the magnetosphere‐atmosphere interactions at Europa and Callisto that may be observed by an ENA imaging instrument. To do so, we combine the draped electromagnetic fields from the AIKEF hybrid model with a tracing tool for the energetic magnetospheric parent ions.
C. Michael Haynes, Tyler Tippens, Sven Simon, Lucas Liuzzo   +3 more
wiley   +1 more source

Mass distribution of population III star clusters: A-SLOTH predictions for JWST observability

Astronomy & Astrophysics
Context. Detecting population III (pop. III) stars remains a major observational challenge. Their Balmer-series recombination line emission, redshifted into the infrared at z ∼ 5 − 11, has been proposed as a potential tracer.
Lipatova Veronika, Glover Simon C. O., Klessen Ralf S., Liu Boyuan   +3 more
doaj   +1 more source

Primordial non-Gaussianity and reionization

Physical Review D, 2013
18 pages, 11 ...
Lidz, Adam, Baxter, Eric J., Adshead, Peter, Dodelson, Scott   +3 more
openaire   +3 more sources

Imprints of reionization in galaxy clustering [PDF]

Physical Review D, 2017
18 pages, 5 figures; v2: minor improvements, submitted to PRD; v3: clarifications and additions in response to referee, matches published ...
Schmidt, Fabian, Beutler, Florian
openaire   +4 more sources

Toward Reconciling Reionization with JWST: The Role of Bright Galaxies and Strong Feedback

The Astrophysical Journal
The elevated UV luminosity functions (UVLFs) from recent James Webb Space Telescope (JWST) observations have challenged the viability of existing theoretical models.
Ankita Bera, Sultan Hassan, Robert Feldmann, Romeel Davé, Kristian Finlator   +4 more
doaj   +1 more source

GLIMPSE-D: Metallicity decline in faint galaxies: Implications for [O III]+Hβ luminosity function and re-ionisation budget

Astronomy & Astrophysics
We report the measurement of the R3 = [O III] λ5008/Hβ ratios for 54 galaxies in the GLIMPSE-D survey. Thanks to gravitational lensing, our sample includes galaxies with −20 ≲ MUV 
Korber Damien, Schaerer Daniel, Marques-Chaves Rui, Adamo Angela, Basu Arghyadeep, Chisholm John, Dessauges-Zavadsky Miroslava, McQuinn Kristen. B. W., Saldana-Lopez Alberto, Atek Hakim, Endsley Ryan, Fujimoto Seiji, Furtak Lukas J., Kokorev Vasily, Naidu Rohan P., Pan Richard   +15 more
doaj   +1 more source

Radio Frequency Interference Detection Using Swin Transformer Embedding U2‐Net

Advances in Astronomy, Volume 2025, Issue 1, 2025.
Radio frequency interference (RFI) is radio wave interference from natural sources or man‐made models. In radio astronomy research, the signals of celestial objects captured by radio telescopes are extremely weak, and the presence of RFI can significantly mask or distort those signals, reducing the accuracy of observational data and seriously affecting
Shengdi Chen, Bo Liang, Sándor Frey
wiley   +1 more source

On the Reionization of the Universe

Chinese Journal of Astronomy and Astrophysics, 2006
[12 pages, 6 figures] Invited talk given at the Frascati Workshop 2005 "Multifrequency Behaviour of High Energy Cosmic Sources", eds. F. Giovannelli and Lola Sabau-Graziati; to appear in a special issue of the Chinese Journal of Astronomy & ...
openaire   +2 more sources

AGN jets versus accretion as reionization sources [PDF]

, 2020
Context. Cosmic reionization put an end to the dark ages that came after the recombination era. Observations seem to favor the scenario of massive-star photons generated in low-mass galaxies being responsible for the bulk of reionization and, whereas a ...
Núria Torres-Albà, Bosch i Ramon, Valentí, Valentí Bosch-Ramon, Torres Albà, Núria, Iwasawa, Kazushi, Kazushi Iwasawa, Torres-Albà, N., Bosch-Ramon, Valentí   +7 more
core   +1 more source

UV slopes of star-forming galaxies in strong-lensing fields at the epoch of reionisation with JWST

Astronomy & Astrophysics
Context. UV slopes (β) are a powerful diagnostic for galaxies at the epoch of reionisation, tracing star formation, interstellar medium ionisation, and the escape fraction fesc of ionising photons.
Felicioni Giordano, Bradač Maruša, Asada Yoshihisa, Martis Nicholas S., Sarrouh Ghassan T. E., Desprez Guillaume, Rihtaršič Gregor, Jagga Naadiyah, Harshan Anishya, Judež Jon, Willott Chris J., Abraham Roberto, Brammer Gabriel, Estrada-Carpenter Vince, Matharu Jasleen, Muzzin Adam, Noirot Gaël, Sawicki Marcin, Withers Sunna, Markov Vladan, Mérida Rosa M., Pirc Jevšenak Vesna, Tripodi Roberta   +22 more
doaj   +1 more source