Results 81 to 90 of about 92,607 (277)

New Tests of the Cosmic Distance Duality Relation with DESI 2024 Baryon Acoustic Oscillation Observations

The Astrophysical Journal
In this paper, we test the cosmic distance duality relation (CDDR), as required by the Etherington reciprocity theorem, which connects the angular diameter distance and the luminosity distance via the relation D _L ( z ) =  D _A ( z )(1 +  z ) ^2 .
Qiumin Wang, Shuo Cao, Jianyong Jiang, Kaituo Zhang, Xinyue Jiang, Tonghua Liu, Chengsheng Mu, Dadian Cheng   +7 more
doaj   +1 more source

Ex-nihilo II: Examination Syllabi and the Sequencing of Cosmology Education

, 2003
Cosmology education has become an integral part of modern physics courses. Directed by National Curricula, major UK examination boards have developed syllabi that contain explicit statements about the model of the Big Bang and the strong observational ...
Einstein A, Governato F, Harrison E, Jaki S L, John C Newman, Kevin A Pimbblet, Moore G S M, Peebles P J E, Pimbblet K A, Prather E E, Thomas O, Tipler F J, Toscano M   +12 more
core   +2 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Revisiting the Hubble Constant, Sound Horizon, and Cosmography from Late-time Universe Observations

The Astrophysical Journal
The Hubble tension has become one of the central problems in cosmology. In this work, we determine the Hubble constant H _0 and sound horizon r _d by using the combination of baryon acoustic oscillations (BAOs) from DESI surveys, time-delay lensed ...
Zhiwei Yang, Tonghua Liu, Xiaolei Li
doaj   +1 more source

Post‐Traumatic Growth in the Global South: Possibilities in Relational Ethics from Communities to Classrooms

TESOL Quarterly, EarlyView.
Abstract This article reports on a qualitative study of the way instructors and students understand and respond to traumatizing events in a Sri Lankan university. It shows how the attitudes and practices in the society at large are carried over to classrooms even though local institutions do not have a programmatic trauma‐informed pedagogy.
Suresh Canagarajah, Canista Arthie Hensman   +1 more
wiley   +1 more source

Cross-correlation Techniques to Mitigate the Interloper Contamination for Line Intensity Mapping Experiments

The Astrophysical Journal
Line intensity mapping (LIM) serves as a potent probe in astrophysics, relying on the statistical analysis of integrated spectral line emissions originating from distant star-forming galaxies.
Anirban Roy, Nicholas Battaglia
doaj   +1 more source

Observational constraints on electromagnetic Born-Infeld cosmology

, 2012
The cosmological model consisting of an electromagnetic Born-Infeld (BI) field coupled to a Robertson-Walker geometry is tested with the standard probes of SNIa, GRBs and direct Hubble parameter.
Bretón, Nora, Lazkoz, Ruth, Montiel, Ariadna   +2 more
core   +1 more source

Autopsy, deathways, and intercultural healthcare in the southern Peruvian Andes Autopsie, pratiques mortuaires et soins de santé interculturels dans le sud des Andes péruviennes

Journal of the Royal Anthropological Institute, EarlyView.
While death remains a popular topic for anthropology, relatively few ethnographic accounts consider the modern bureaucratic processes accompanying it. One such process is public health autopsy, which scholars have largely taken for granted. Existing analysis has regarded it as a form of ‘cultural brokering’ and autopsy reluctance in communities is seen,
David M.R. Orr
wiley   +1 more source

Probing the Environment around GW170817 with DESI: Insights on Galaxy Group Peculiar Velocities for Standard Siren Measurements

The Astrophysical Journal
We present a new measurement of the Hubble constant, H _0 , following the gravitational-wave event GW170817 and Dark Energy Spectroscopic Instrument (DESI) observations.
A. J. Amsellem, A. Palmese, K. Douglass, C. Howlett, J. S. M. Karp, I. Magaña Hernandez, J. Moustakas, R. H. Wechsler, J. Aguilar, S. Ahlen, S. BenZvi, D. Bianchi, D. Brooks, A. Carr, T. Claybaugh, A. Cuceu, T. M. Davis, A. de la Macorra, A. Dey, B. Dey, P. Doel, A. Font-Ribera, J. E. Forero-Romero, E. Gaztañaga, S. Gontcho A Gontcho, G. Gutierrez, K. Honscheid, M. Ishak, R. Joyce, R. Kehoe, T. Kisner, A. Kremin, O. Lahav, A. Lambert, M. Landriau, L. Le Guillou, M. Manera, V. Manwadkar, A. Meisner, R. Miquel, A. D. Myers, S. Nadathur, G. Niz, N. Palanque-Delabrouille, W. J. Percival, C. Poppett, F. Prada, I. Pérez-Ràfols, A. Raichoor, G. Rossi, E. Sanchez, D. Schlegel, M. Schubnell, H. Seo, J. Silber, D. Sprayberry, G. Tarlé, R. Zhou, THE DESI COLLABORATION   +58 more
doaj   +1 more source

Observing the dark sector

, 2019
Despite the observational success of the standard model of cosmology, present-day observations do not tightly constrain the nature of dark matter and dark energy and modifications to the theory of general relativity.
Marra, Valerio, Rosenfeld, Rogerio, Sturani, Riccardo   +2 more
core   +1 more source