Results 1 to 10 of about 8,809,586 (241)

Dark Energy with Phantom Crossing and the H₀ Tension. [PDF]

Entropy (Basel), 2021
We investigate the possibility of phantom crossing in the dark energy sector and the solution for the Hubble tension between early and late universe observations.
Di Valentino E, Mukherjee A, Sen AA.
europepmc   +3 more sources

Barrow entropic dark energy: A member of generalized holographic dark energy family [PDF]

Physics Letters B, 2022
The holographic cut-off, in the formalism of generalized holographic dark energy (HDE), is generalized to depend on LIR=LIR(Lp,L˙p,L¨p,⋯,Lf,L˙f,⋯,a), where Lp and Lf are the particle horizon and future horizon respectively, and a is the scale factor of ...
Shin'ichi Nojiri, Sergei D. Odintsov, Tanmoy Paul   +2 more
doaj   +2 more sources

Evidence for Dark Energy Driven by Star Formation: Information Dark Energy? [PDF]

Entropy
Evidence is presented for dark energy resulting directly from star formation. A survey of stellar mass density measurements, SMD(a), as a function of universe scale size a, was found to be described by a simple CPL w0 − wa parameterisation that was in ...
Michael Paul Gough
doaj   +2 more sources

Maximally rotating supermassive stars at the onset of collapse: the perturbative effects of gas pressure, magnetic fields, dark matter, and dark energy. [PDF]

Mon Not R Astron Soc, 2018
Butler SP, Lima AR, Baumgarte TW, Shapiro SL.   +3 more
europepmc   +3 more sources

The Early Data Release of the Dark Energy Spectroscopic Instrument [PDF]

Astronomical Journal, 2023
The Dark Energy Spectroscopic Instrument (DESI) completed its 5 month Survey Validation in 2021 May. Spectra of stellar and extragalactic targets from Survey Validation constitute the first major data sample from the DESI survey. This paper describes the
D. C. A. G. Adame, J. Aguilar, S. Ahlen, S. Alam, G. Aldering, D. Alexander, R. Alfarsy, C. Prieto, Mar Alvarez, O. Alves, A. Anand, F. Andrade-Oliveira, E. Armengaud, J. Asorey, S. Ávila, A. Avilés, S. Bailey, A. Balaguera-Antol'inez, O. Ballester, C. Baltay, A. Bault, J. Bautista, J. Behera, S. F. Beltran, S. Benzvi, L. Silva, J. Bermejo-Climent, A. Berti, R. Besuner, F. Beutler, D. Bianchi, C. Blake, R. Blum, A. Bolton, S. Brieden, A. Brodzeller, D. Brooks, Z. Brown, E. Buckley-Geer, É. Burtin, L. Cabayol-Garcia, Z. Cai, R. Canning, L. Cardiel-Sas, A. Rosell, F. Castander, J. Cervantes-Cota, S. Chabanier, E. Chaussidon, J. Chaves-Montero, S. Chen, C. Chuang, T. Claybaugh, S. Cole, A. Cooper, A. Cuceu, T. Davis, K. Dawson, R. D. Belsunce, R. D. Cruz, A. Macorra, A. D. Mattia, R. Demina, U. Demirbozan, J. DeRose, A. Dey, B. Dey, G. Dhungana, J. Ding, Z. Ding, P. Doel, R. Doshi, K. Douglass, A. Edge, S. Eftekharzadeh, D. Eisenstein, A. Elliott, S. Escoffier, P. Fagrelius, X. Fan, K. Fanning, V. A. Fawcett, S. Ferraro, J. Ereza, B. Flaugher, A. Font-Ribera, Daniel Felipe Forero-Sanchez, J. Forero-Romero, C. Frenk, B. Gansicke, L. '. Garc'ia, J. Garc'ia-Bellido, C. Garcia-Quintero, L. Garrison, H. Gil-Mar'in, J. Golden-Marx, S. Gontcho, A. González-Morales, V. Gonzalez-Perez, C. Gordon, O. Graur, D. Green, D. Gruen, J. Guy, B. Hadzhiyska, C. Hahn, J. Han, M. Hanif, H. Herrera-Alcantar, K. Honscheid, J. Hou, C. Howlett, D. Huterer, V. Irvsivc, M. Ishak, A. Jacques, A. Jana, L. Jiang, J. Jiménez, Y. Jing, S. Joudaki, E. Jullo, S. Juneau, N. Kizhuprakkat, N. G. Karaccayli, T. Karim, R. Kehoe, S. Kent, A. Khederlarian, S. Kim, D. Kirkby, T. Kisner, F. Kitaura, J. Kneib, Sergey E. Koposov, A. Kov'acs, A. Kremin, A. Krolewski, B. L’Huillier, A. Lambert, C. Lamman, Ting-Wen Lan, M. Landriau, D. Lang, J. Lange, James Lasker, L. Guillou, A. Leauthaud, M. Levi, T. Li, E. Linder, A. Lyons, C. Magneville, M. Manera, C. Manser, D. Margala, P. Martini, P. Mcdonald, G. Medina, L. Medina-Varela, A. Meisner, J. Mena-Fern'andez, J. Meneses-Rizo, M. Mezcua, R. Miquel, P. Montero-Camacho, J. Moon, S. Moore, J. Moustakas, E. Mueller, J. Mundet, A. Munoz-Guti'errez, A. Myers, S. Nadathur, L. Napolitano, R. Neveux, J. Newman, J. Nie, R. Nikutta, G. Niz, P. Norberg, H. Noriega, E. Paillas, N. Palanque-Delabrouille, A. Palmese, P. Zhiwei, D. Parkinson, S. Penmetsa, W. Percival, A. P'erez-Fern'andez, I. P'erez-Rafols, M. Pieri, C. Poppett, A. Porredon, S. Pothier, F. Prada, R. Pucha, A. Raichoor, C. Ram'irez-P'erez, S. Ramirez-Solano, M. Rashkovetskyi, C. Ravoux, A. Rocher, C. Rockosi, A. Ross, G. Rossi, R. Ruggeri, V. Ruhlmann-Kleider, C. Sabiu, K. Said, A. Saintonge, L. Samushia, E. Sanchez, C. Saulder, E. Schaan, E. Schlafly, D. Schlegel, D. Scholte, M. Schubnell, H. Seo, A. Shafieloo, R. Sharples, W. Sheu, J. Silber, F. Sinigaglia, M. Siudek, Z. Slepian, A. Smith, D. Sprayberry, L. Stephey, J. Su'arez-P'erez, Z. Sun, T. Tan, G. Tarl'e, R. Tojeiro, L. A. Urena-L'opez, R. Vaisakh, D. Valcin, F. Valdes, M. Valluri, M. Vargas-Magaña, A. Variu, L. Verde, M. Walther, B. Wang, M. Wang, B. Weaver, N. Weaverdyck, Risa Wechsler, M. White, Y. Xie, J. Yang, C. Yéche, J. Yu, S. Yuan, H. Zhang, Z. Zhang, C. Zhao, Z. Zheng, R. Zhou, Zhong Zhou, H. Zou, S. Zou, Y. Zu   +263 more
semanticscholar   +1 more source

Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument [PDF]

Astronomical Journal, 2023
The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg2 over 5 yr to constrain the cosmic expansion history through precise measurements of baryon acoustic oscillations (BAO).
D. C. A. G. Adame, J. Aguilar, S. Ahlen, S. Alam, G. Aldering, D. Alexander, R. Alfarsy, C. Prieto, Mar Alvarez, O. Alves, A. Anand, F. Andrade-Oliveira, E. Armengaud, J. Asorey, S. Ávila, A. Aviles, S. Bailey, A. Balaguera-Antol'inez, O. Ballester, C. Baltay, A. Bault, J. Bautista, J. Behera, S. F. Beltran, S. Benzvi, L. Silva, J. Bermejo-Climent, A. Berti, R. Besuner, F. Beutler, D. Bianchi, C. Blake, R. Blum, A. Bolton, S. Brieden, A. Brodzeller, D. Brooks, Z. Brown, E. Buckley-Geer, É. Burtin, L. Cabayol-Garcia, Z. Cai, R. Canning, L. Cardiel-Sas, A. Rosell, F. Castander, J. Cervantes-Cota, S. Chabanier, E. Chaussidon, J. Chaves-Montero, S. Chen, C. Chuang, T. Claybaugh, S. Cole, A. Cooper, A. Cuceu, T. Davis, K. Dawson, R. D. Belsunce, R. D. L. Cruz, A. Macorra, A. D. Mattia, R. Demina, U. Demirbozan, J. DeRose, A. Dey, B. Dey, G. Dhungana, J. Ding, Z. Ding, P. Doel, R. Doshi, K. Douglass, A. Edge, S. Eftekharzadeh, D. Eisenstein, A. Elliott, S. Escoffier, P. Fagrelius, X. Fan, K. Fanning, V. A. Fawcett, S. Ferraro, J. Ereza, B. Flaugher, A. Font-Ribera, Daniel Felipe Forero-Sanchez, J. Forero-Romero, C. Frenk, B. Gansicke, L. '. Garc'ia, J. Garc'ia-Bellido, C. Garcia-Quintero, L. Garrison, H. Gil-Mar'in, J. Golden-Marx, S. Gontcho, A. González-Morales, V. Gonzalez-Perez, C. Gordon, O. Graur, D. Green, D. Gruen, J. Guy, B. Hadzhiyska, C. Hahn, J. Han, M. Hanif, H. Herrera-Alcantar, K. Honscheid, J. Hou, C. Howlett, D. Huterer, V. Irvsivc, M. Ishak, A. Jana, L. Jiang, J. Jiménez, Y. Jing, S. Joudaki, E. Jullo, S. Juneau, N. Kizhuprakkat, N. G. Karaccayli, T. Karim, R. Kehoe, S. Kent, A. Khederlarian, S. Kim, D. Kirkby, T. Kisner, F. Kitaura, J. Kneib, Sergey E. Koposov, A. Kov'acs, A. Kremin, A. Krolewski, B. L’Huillier, A. Lambert, C. Lamman, Ting-Wen Lan, M. Landriau, D. Lang, J. Lange, James Lasker, L. Guillou, A. Leauthaud, M. Levi, T. Li, E. Linder, A. Lyons, C. Magneville, M. Manera, C. Manser, D. Margala, P. Martini, P. Mcdonald, G. Medina, L. Medina-Varela, A. Meisner, J. Mena-Fern'andez, J. Meneses-Rizo, M. Mezcua, R. Miquel, P. Montero-Camacho, J. Moon, S. Moore, J. Moustakas, E. Mueller, J. Mundet, A. Munoz-Guti'errez, A. Myers, S. Nadathur, L. Napolitano, R. Neveux, J. Newman, J. Nie, G. Niz, P. Norberg, H. Noriega, E. Paillas, N. Palanque-Delabrouille, A. Palmese, P. Zhiwei, D. Parkinson, S. Penmetsa, W. Percival, A. P'erez-Fern'andez, I. P'erez-Rafols, M. Pieri, C. Poppett, A. Porredon, F. Prada, R. Pucha, A. Raichoor, C. Ram'irez-P'erez, S. Ramirez-Solano, M. Rashkovetskyi, C. Ravoux, A. Rocher, C. Rockosi, A. Ross, G. Rossi, R. Ruggeri, V. Ruhlmann-Kleider, C. Sabiu, K. Said, A. Saintonge, L. Samushia, E. Sanchez, C. Saulder, E. Schaan, E. Schlafly, D. Schlegel, D. Scholte, M. Schubnell, H. Seo, A. Shafieloo, R. Sharples, W. Sheu, J. Silber, F. Sinigaglia, M. Siudek, Z. Slepian, A. Smith, D. Sprayberry, L. Stephey, J. Su'arez-P'erez, Z. Sun, T. Tan, G. Tarl'e, R. Tojeiro, L. A. Urena-L'opez, R. Vaisakh, D. Valcin, F. Valdes, M. Valluri, M. Vargas-Magaña, A. Variu, L. Verde, M. Walther, B. Wang, M. Wang, B. Weaver, N. Weaverdyck, Risa Wechsler, M. White, Y. Xie, J. Yang, C. Yéche, J. Yu, S. Yuan, H. Zhang, Z. Zhang, C. Zhao, Z. Zheng, R. Zhou, Z. Zhou, H. Zou, S. Zou, Y. Zu   +260 more
semanticscholar   +1 more source

Survey Operations for the Dark Energy Spectroscopic Instrument [PDF]

Astronomical Journal, 2023
The Dark Energy Spectroscopic Instrument (DESI) survey is a spectroscopic survey of tens of millions of galaxies at 0 < z < 3.5 covering 14,000 sq. deg. of the sky.
E. Schlafly, D. Kirkby, David J. Schlegel, A. Myers, A. Raichoor, K. Dawson, J. Aguilar, C. Allende Prieto, Stephen Bailey, S. Benzvi, J. Bermejo-Climent, D. Brooks, A. de la Macorra, A. Dey, P. Doel, K. Fanning, A. Font-Ribera, J. Forero-Romero, J. García-Bellido, S. Gontcho A Gontcho, J. Guy, C. Hahn, K. Honscheid, M. Ishak, S. Juneau, R. Kehoe, T. Kisner, A. Kremin, M. Landriau, D. Lang, J. Lasker, M. Levi, C. Magneville, C. Manser, P. Martini, A. Meisner, R. Miquel, J. Moustakas, J. Newman, J. Nie, N. Palanque-Delabrouille, W. Percival, C. Poppett, C. Rockosi, A. Ross, G. Rossi, G. Tarlé, B. Weaver, C. Yèche, R. Zhou   +49 more
semanticscholar   +1 more source

Underdetermination of dark energy [PDF]

Physical Review D, 2023
There is compelling evidence that the Universe is undergoing a late phase of accelerated expansion. One of the simplest explanations for this behaviour is the presence of dark energy. A plethora of microphysical models for dark energy have been proposed.
William J. Wolf, Pedro G. Ferreira
semanticscholar   +1 more source

Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument [PDF]

Astronomical Journal, 2022
The Dark Energy Spectroscopic Instrument (DESI) embarked on an ambitious 5 yr survey in 2021 May to explore the nature of dark energy with spectroscopic measurements of 40 million galaxies and quasars. DESI will determine precise redshifts and employ the
B. Abareshi, J. Aguilar, S. Ahlen, S. Alam, D. Alexander, R. Alfarsy, L. Allen, C. Prieto, O. Alves, J.Ameel, E. Armengaud, J. Asorey, A. Aviles, S. Bailey, A. Balaguera-Antol'inez, O. Ballester, C. Baltay, A. Bault, S. F. Beltran, B. Benavides, S. Benzvi, A. Berti, R. Besuner, F. Beutler, D. Bianchi, C. Blake, P. Blanc, R. Blum, A. Bolton, S. Bose, D. Bramall, S. Brieden, A. Brodzeller, D. Brooks, C. Brownewell, E. Buckley-Geer, R. Cahn, Z. Cai, R. Canning, A. Rosell, P. Carton, R. Casas, F. Castander, J. Cervantes-Cota, S. Chabanier, E. Chaussidon, C. Chuang, C. Circosta, S. Cole, A. Cooper, L. Costa, M. Cousinou, A. Cuceu, T. Davis, K. Dawson, R. D. L. Cruz-Noriega, A. Macorra, A. D. Mattia, J. D. Costa, P. Demmer, M. Derwent, A. Dey, B. Dey, G. Dhungana, Z. Ding, C. Dobson, P. Doel, J. Donald-McCann, J. Donaldson, K. Douglass, Y. Duan, P. Dunlop, J. Edelstein, S. Eftekharzadeh, D. Eisenstein, M. Enriquez-Vargas, S. Escoffier, M. Evatt, P. Fagrelius, X. Fan, K. Fanning, V. A. Fawcett, S. Ferraro, J. Ereza, B. Flaugher, A. Font-Ribera, J. Forero-Romero, C. Frenk, S. Fromenteau, B. Gansicke, C. Garcia-Quintero, L. Garrison, E. Gaztañaga, F. Gerardi, H. Gil-Mar'in, S. Gontcho, A. González-Morales, G. González-de-Rivera, V. Gonzalez-Perez, C. Gordon, O. Graur, D. Green, C. Grove, D. Gruen, G. Gutiérrez, J. Guy, C. Hahn, S. Harris, D. Herrera, H. Herrera-Alcantar, K. Honscheid, C. Howlett, D. Huterer, V. Irvsivc, M. Ishak, P. Jelinsky, L. Jiang, J. Jiménez, Y. Jing, R. Joyce, E. Jullo, S. Juneau, N. G. Karaccayli, M. Karamanis, A. Karcher, T. Karim, R. Kehoe, S. Kent, D. Kirkby, T. Kisner, F. Kitaura, Sergey E. Koposov, A. Kov'acs, A. Kremin, A. Krolewski, B. L’Huillier, O. Lahav, A. Lambert, C. Lamman, Ting-Wen Lan, M. Landriau, S. Lane, D. Lang, J. Lange, James Lasker, L. Guillou, A. Leauthaud, A. L. V. Suu, M. Levi, T. Li, C. Magneville, M. Manera, C. Manser, B. Marshall, W. McCollam, P. Mcdonald, A. Meisner, J. M. M. Mezcua, T. Miller, R. Miquel, P. Montero-Camacho, J. Moon, J. P. Martini, J. Meneses-Rizo, J. Moustakas, E. Mueller, A. Munoz-Guti'errez, A. Myers, S. Nadathur, J. Najita, L. Napolitano, E. Neilsen, J. Newman, J.D.Nie, Y. Ning, G. Niz, P. Norberg, H. Noriega, T. O’Brien, A. Obuljen, N. Palanque-Delabrouille, A. Palmese, P. Zhiwei, D. Pappalardo, X. Peng, W. Percival, S. Perruchot, R. Pogge, C. Poppett, A. Porredon, F. Prada, J. Prochaska, R. Pucha, A. P'erez-Fern'andez, I. P'erez-R'afols, D. Rabinowitz, A. Raichoor, S. Ramirez-Solano, C. Ram'irez-P'erez, C. Ravoux, K. Reil, M. Rezaie, A. Rocher, C. Rockosi, N. Roe, A. Roodman, A. Ross, G. Rossi, R. Ruggeri, V. Ruhlmann-Kleider, C. Sabiu, S. Safonova, K. Said, A. Saintonge, Javier Salas Catonga, L. Samushia, E. Sanchez, C. Saulder, E. Schaan, E. Schlafly, D. Schlegel, J. Schmoll, D. Scholte, M. Schubnell, A. Secroun, H. Seo, S. Serrano, R. Sharples, M. Sholl, J. Silber, D. R. Silva, M. Sirk, M. Siudek, A. Smith, D. Sprayberry, R. Staten, B. Stupak, T. Tan, G. Tarl'e, S. Tie, R. Tojeiro, L. A. Urena-L'opez, F. Valdes, O. Valenzuela, M. Valluri, M. Vargas-Magaña, L. Verde, M. Walther, B. Wang, M. Wang, B. Weaver, C. Weaverdyck, Risa Wechsler, Michael J. Wilson, J. Yang, Y. Yu, S. Yuan, C. Yéche, H. Zhang, K. Zhang, Cheng Zhao, R. Zhou, Zhi-min Zhou, H. Zou, J. Zou, S. Zou, Y. Zu   +266 more
semanticscholar   +1 more source

The Hubble Tension and Early Dark Energy [PDF]

Annual Review of Nuclear and Particle Science, 2022
Over the past decade, the disparity between the value of the cosmic expansion rate determined directly from measurements of distance and redshift and that determined instead from the standard Lambda cold dark matter (ΛCDM) cosmological model, calibrated ...
M. Kamionkowski, A. Riess
semanticscholar   +1 more source