Results 21 to 30 of about 1,465,941 (244)

Lyα visibility from z = 4.5 to 11 in the UDS field: Evidence for a high neutral hydrogen fraction and small ionized bubbles at z ∼ 7

Astronomy & Astrophysics
The resonant scattering nature of Lyα photons interacting with neutral hydrogen makes Lyα emitters (LAEs) robust tracers of the intergalactic neutral hydrogen fraction, and thus sensitive probes of cosmic reionization.
Napolitano L., Pentericci L., Dickinson M., Arrabal Haro P., Taylor A. J., Calabrò A., Bhagwat A., Santini P., Arevalo-Gonzalez F., Begley R., Castellano M., Ciardi B., Donnan C. T., Dottorini D., Dunlop J. S., Finkelstein S. L., Fontana A., Giavalisco M., Hirschmann M., Jung I., Koekemoer A. M., Kokorev V., Llerena M., Lucas R. A., Mascia S., Merlin E., Pérez-González P. G., Stanton T. M., Tripodi R., Wang X., Weiner B. J.   +30 more
doaj   +1 more source

Effect of primordial black holes on the global 21 cm signal

Astronomy & Astrophysics
The 21 cm global signal, a treasure trove of information about the nature of the first luminous sources of the Universe, has traditionally been modelled assuming that these early sources were predominantly star-forming galaxies.
Chatterjee Atrideb
doaj   +1 more source

Dark Ages Interferometer (DALI) Deployment Rover: Energy System

, 2014
The cosmic “Dark Ages” is the cosmic era between the epochs of recombination of cosmic microwave background and the formation of the first stars. The only signal from this epoch is from neutral hydrogen, which could represent one of the richest data sets
Ericsson, Emil, Andersson, Gustav
core   +2 more sources

Unveiling the Dark Ages: A New Pathway Using Tomographical 21 cm Cosmic Microwave Background Cross-correlations

The Astrophysical Journal Letters
The cosmic dark ages are comovingly adjacent to the last-scattering surface, and this proximity, in conjunction with the spectral redness of the primordial potential, makes the cosmic microwave background (CMB) and the dark ages measurably correlated on ...
Joshua J. Hibbard, Joseph Silk
doaj   +1 more source

Impact of the primordial black hole population on 21-cm observables at high redshift

Astronomy & Astrophysics
The 21-centimetre (21-cm) signal is one of the most promising probes of the high-redshift Universe. It has typically been modelled without accounting for the effects of active galactic nuclei (AGNs) in the pre-JWST era, primarily due to the lack of ...
Chatterjee Atrideb, Maity Barun, Koushiki   +2 more
doaj   +1 more source

Pediatric Idiopathic Multicentric Castleman Disease Is Often Severe But Responsive to Siltuximab

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Idiopathic multicentric Castleman disease (iMCD) is a potentially fatal immunologic disorder marked by widespread lymphadenopathy and inflammation. Siltuximab, an interleukin‐6 (IL‐6) inhibitor, is the only FDA‐approved treatment for adult patients with iMCD.
Bridget Austin, Sheila K. Pierson, Kelley C. Dacus, Mateo Sarmiento Bustamante, Saishravan Shyamsundar, Larissa Borys, Kayla McHugh, Abiola Irvine, Yoojin Jo, Adam Bagg, Mary Jo Lechowicz, Daisy Alapat, Amy Chadburn, Megan S. Lim, Gordan Srkalovic, Frits van Rhee, David C. Fajgenbaum, Joshua D. Brandstadter   +17 more
wiley   +1 more source

Dark Energy in the Dark Ages [PDF]

, 2006
Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or"reasonable'" canonical scalar fields.
Linder, Eric V.
core   +1 more source

Breaking through the cosmic fog: JWST/NIRSpec constraints on ionizing photon escape in reionization-era galaxies

Astronomy & Astrophysics
Aims. The escape fraction of Lyman continuum photons (fesc(LyC)) is the last key unknown in our understanding of cosmic reionization. Directly estimating the escape fraction (fesc) of ionizing photons in the epoch of reionization (EoR) is impossible, due
Giovinazzo Emma, Oesch Pascal A., Weibel Andrea, Meyer Romain A., Witten Callum, Bhagwat Aniket, Brammer Gabriel, Chisholm John, de Graaff Anna, Gottumukkala Rashmi, Jecmen Michelle, Katz Harley, Leja Joel, Marques-Chaves Rui, Maseda Michael, Shivaei Irene, Trebitsch Maxime, Verhamme Anne   +17 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Euclid: Discovery of 31 new quasars at 6.6 < z < 7.8★

Astronomy & Astrophysics
We report the discovery of 31 new high-z quasars in the redshift range 6.6 
Yang D., Hennawi J. F., Guarneri F., Wolf J., Belladitta S., Schindler J.-T., Hughes A. C. N., Bañados E., Mortlock D. J., Yang J., Wang F., Fan X., Jahnke K., Stern D., Willott C. J., Barth A. J., Rottgering H. J. A., Varadaraj R. G., Decarli R., Eilers A.-C., Ezziati M., Fu Y., Huang J., Jin X., Kang Y., Martinez-Ramirez L. N., Matsuoka Y., Onoue M., Pello R., Remigio R. P., Tee W. L., Venemans B., Vietri G., Wang B., Abbo L. J., Atek H., Bisogni S., Bosman S. E. I., Bowler R. A. A., Conselice C. J., Davies F. B., Gutierrez C. M., Harikane Y., Rubinur K., Lovell C. C., Magliocchetti M., Matthee J., Ricci F., Scialpi M., Scott D., Spinoglio L., Tarsitano F., Toba Y., Walter F., Weaver J. R., Zamorani G., Altieri B., Amara A., Andreon S., Aussel H., Baccigalupi C., Baldi M., Balestra A., Bardelli S., Battaglia P., Biviano A., Branchini E., Brescia M., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Carretero J., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conversi L., Copin Y., Courbin F., Courtois H. M., Cropper M., Cuillandre J.-C., Degaudenzi H., De Lucia G., Dolding C., Dole H., Douspis M., Dubath F., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Ferriol S., Finelli F., Fourmanoit N., Frailis M., Franceschi E., Fumana M., Galeotta S., George K., Gillis B., Giocoli C., Gómez-Alvarez P., Gracia-Carpio J., Grazian A., Grupp F., Guzzo L., Gwyn S., Haugan S. V. H., Hoekstra H., Holmes W., Hook I. M., Hormuth F., Hornstrup A., Jhabvala M., Kermiche S., Kubik B., Kuijken K., Kümmel M., Kunz M., Kurki-Suonio H., Le Brun A. M. C., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marggraf O., Martinelli M., Martinet N., Marulli F., Massey R. J., McCracken H. J., Medinaceli E., Mei S., Mellier Y., Meneghetti M., Merlin E., Meylan G., Mohr J. J., Mora A., Moresco M., Moscardini L., Munari E., Nakajima R., Neissner C., Nichol R. C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Percival W. J., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Pozzetti L., Racca G. D., Raison F., Rebolo R., Renzi A., Rhodes J., Riccio G., Rix H.-W., Romelli E., Roncarelli M., Rosset C., Rusholme B., Saglia R., Sakr Z., Sapone D., Sauvage M., Schirmer M., Schneider P., Schrabback T., Secroun A., Seidel G., Serrano S., Sihvola E., Simon P., Sirignano C., Sirri G., Stanco L., Steinwagner J., Tallada-Crespí P., Tereno I., Tessore N., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Wang Y., Weller J., Zerbi F. M., Zucca E., Fabbian G., Huertas-Company M., Martín-Fleitas J., Monaco P., Scottez V., Viel M.   +213 more
doaj   +1 more source