Results 21 to 30 of about 3,723 (266)

Studies of relativistic effects with radioastron space mission [PDF]

Serbian Astronomical Journal, 2007
In the review we discuss possible studies of GR phenomena such as gravitational microlensing and shadow analysis with the forthcoming RadioAstron space mission.
Zakharov A.F.
doaj   +1 more source

Theory of gravitational lensing on a curved cosmic string

European Physical Journal C: Particles and Fields, 2023
It is discussed in detail the complete mathematical model of gravitational lensing on a single cosmic string (CS) of general shape and position with respect to the line of sight.
Igor I. Bulygin, Mikhail V. Sazhin, Olga S. Sazhina   +2 more
doaj   +1 more source

MOA-2020-BLG-208Lb: Cool Sub-Saturn-mass Planet within Predicted Desert

The Astronomical Journal, 2023
We analyze the MOA-2020-BLG-208 gravitational microlensing event and present the discovery and characterization of a new planet, MOA-2020-BLG-208Lb, with an estimated sub-Saturn mass.
Greg Olmschenk, David P. Bennett, Ian A. Bond, Weicheng Zang, Youn Kil Jung, Jennifer C. Yee, Etienne Bachelet, Leading authors, Fumio Abe, Richard K. Barry, Aparna Bhattacharya, Hirosane Fujii, Akihiko Fukui, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Naoki Koshimoto, Yutaka Matsubara, Sho Matsumoto, Shota Miyazaki, Brandon Munford, Yasushi Muraki, Arisa Okamura, Clément Ranc, Nicholas J. Rattenbury, Yuki Satoh, Takahiro Sumi, Daisuke Suzuki, Taiga Toda, Paul J. Tristram, Aikaterini Vandorou, Hibiki Yama, The MOA Collaboration, Michael D. Albrow, Sang-Mok Cha, Sun-Ju Chung, Andrew Gould, Cheongho Han, Kyu-Ha Hwang, Dong-Jin Kim, Hyoun-Woo Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, Yoon-Hyun Ryu, In-Gu Shin, Yossi Shvartzvald, The KMTNet Collaboration, Grant Christie, Tony Cooper, John Drummond, Jonathan Green, Steve Hennerley, Jennie McCormick, L. A. G. Monard, Tim Natusch, Ian Porritt, Thiam-Guan Tan, The MicroFUN Collaboration, Shude Mao, Dan Maoz, Matthew T. Penny, Wei Zhu, The MAP Follow-Up Collaboration, V. Bozza, Arnaud Cassan, Martin Dominik, Markus Hundertmark, R. Figuera Jaimes, K. Kruszyńska, K. A. Rybicki, R. A. Street, Y. Tsapras, Joachim Wambsganss, Ł. Wyrzykowski, P. Zieliński, The OMEGA Collaboration, Gioia Rau   +82 more
doaj   +1 more source

Fabrication of Aligned Polycaprolactone Nanofibrillar Bundles to Control Cell‐Mediated Collagen Deposition in Engineered Cartilage

Advanced Materials, EarlyView.
Melt electrofibrillation (MEF) enables the fabrication of nanofibrillar PCL scaffolds with defined architectures that guide cellular alignment and retention during cartilage tissue engineering. Unlike conventional melt electrowriting, MEF consistently directs collagen type II‐rich extracellular matrix organization, providing a tunable platform to ...
Alba Pueyo Moliner, Lennard Spauwen, James L. Martin Robinson, Ángela García Grech, Isabelle Martinier, Sara Grasselli, Aylin Kara Özenler, Matthias Ryma, Jürgen Groll, Mylène de Ruijter, Jos Malda   +10 more
wiley   +1 more source

The Effects of Finite Distance on the Gravitational Deflection Angle of Light

Universe, 2019
In order to clarify the effects of the finite distance from a lens object to a light source and a receiver, the gravitational deflection of light has been recently reexamined by using the Gauss−Bonnet (GB) theorem in differential geometry (Ishihara
Toshiaki Ono, Hideki Asada
doaj   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

Advanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke, Zongwen Fu, Sebastian Burgmann, Uwe Janoske, Carlos Doñate‐Buendía, Bilal Gökce   +5 more
wiley   +1 more source

PERFORMANCE COMPARISON OF NEURAL NETWORKS IN GRAVITATIONAL LENSING DETECTION

Scientific Journal of Astana IT University, 2023
A gravitational lens is a distribution of matter, such as dark matter halos, galaxies, or quasars, between a distant light source and an observer that can bend the light from the source as the light travels toward the observer.
Asset Kabdiyev, Asset Kabdiyev
doaj   +1 more source

A Cryopreservation‐Based Supply Chain Strategy for Extrusion Bioprinting in Space

Advanced Materials Technologies, EarlyView.
Extrusion bioprinting on crewed space platforms requires a bioink that stays functional along the logistic chain. Here, cells and biomaterial ink travel separately, the cells cryopreserved and the ink cold stored, and are combined only minutes before printing.
Johannes Windisch, Max von Witzleben, Richard Frank Richter, Finn Dani, Constantin Greil, Sarah Duin, Anja Lode, Michael Gelinsky   +7 more
wiley   +1 more source

Euclid Quick Data Release (Q1)

Astronomy & Astrophysics
The Euclid mission aims to survey around 14 000 deg2 of extragalactic sky, providing around 105 gravitational lens images. Modelling of gravitational lenses is fundamental to estimate the total mass of the lens galaxy, along with its dark matter content.
Busillo V., Tortora C., Metcalf R. B., Nightingale J. W., Meneghetti M., Gentile F., Gavazzi R., Zhong F., Li R., Clément B., Covone G., Napolitano N. R., Courbin F., Walmsley M., Jullo E., Pearson J., Scott D., Le Brun A. M. C., Leuzzi L., Aghanim N., Altieri B., Amara A., Andreon S., Aussel H., Baccigalupi C., Baldi M., Bardelli S., Battaglia P., Biviano A., Branchini E., Brescia M., Brinchmann J., Camera S., Cañas-Herrera G., Capobianco V., Carbone C., Cardone V. F., Carretero J., Casas S., Castellano M., Castignani G., Cavuoti S., Chambers K. C., Cimatti A., Colodro-Conde C., Congedo G., Conselice C. J., Conversi L., Copin Y., Courtois H. M., Cropper M., Da Silva A., Degaudenzi H., de la Torre S., De Lucia G., Di Giorgio A. M., Dinis J., Dole H., Dubath F., Dupac X., Dusini S., Escoffier S., Farina M., Farinelli R., Faustini F., Ferriol S., Finelli F., Fotopoulou S., Frailis M., Franceschi E., Galeotta S., George K., Gillard W., Gillis B., Giocoli C., Gracia-Carpio J., Granett B. R., Grazian A., Grupp F., Haugan S. V. H., Holmes W., Hook I., Hormuth F., Hornstrup A., Hudelot P., Jahnke K., Jhabvala M., Joachimi B., Keihänen E., Kermiche S., Kiessling A., Kubik B., Kümmel M., Kunz M., Kurki-Suonio H., Le Boulc’h Q., Ligori S., Lilje P. B., Lindholm V., Lloro I., Mainetti G., Maino D., Maiorano E., Mansutti O., Marggraf O., Markovic K., Martinelli M., Martinet N., Marulli F., Massey R., Maurogordato S., Medinaceli E., Mei S., Mellier Y., Merlin E., Meylan G., Mora A., Moresco M., Moscardini L., Nakajima R., Neissner C., Niemi S.-M., Padilla C., Paltani S., Pasian F., Pedersen K., Pettorino V., Pires S., Polenta G., Poncet M., Popa L. A., Pozzetti L., Raison F., Rebolo R., Renzi A., Rhodes J., Riccio G., Romelli E., Roncarelli M., Saglia R., Sakr Z., Sánchez A. G., Sapone D., Sartoris B., Schewtschenko J. A., Schirmer M., Schneider P., Schrabback T., Secroun A., Sefusatti E., Seidel G., Seiffert M., Serrano S., Simon P., Sirignano C., Sirri G., Smadja G., Stanco L., Steinwagner J., Tallada-Crespí P., Taylor A. N., Tereno I., Toft S., Toledo-Moreo R., Torradeflot F., Tutusaus I., Valenziano L., Valiviita J., Vassallo T., Veropalumbo A., Wang Y., Weller J., Zamorani G., Zucca E., Allevato V., Ballardini M., Bolzonella M., Bozzo E., Burigana C., Cabanac R., Calabrese M., Di Ferdinando D., Escartin Vigo J. A., Gabarra L., Huertas-Company M., Matthew S., Mauri N., Nucita A. A., Pezzotta A., Pöntinen M., Porciani C., Scottez V., Tenti M., Viel M., Wiesmann M., Akrami Y., Alvi S., Andika I. T., Anselmi S., Archidiacono M., Atrio-Barandela F., Bertacca D., Bethermin M., Blanchard A., Blot L., Borgani S., Brown M. L., Bruton S., Calabro A., Camacho Quevedo B., Cappi A., Caro F., Carvalho C. S., Castro T., Cogato F., Conseil S., Contarini S., Cooray A. R., Cucciati O., De Paolis F., Desprez G., Díaz-Sánchez A., Di Domizio S., Diego J. M., Dimauro P., Enia A., Fang Y., Ferrari A. G., Ferreira P. G., Finoguenov A., Franco A., Ganga K., García-Bellido J., Gasparetto T., Gautard V., Gaztanaga E., Giacomini F., Gianotti F., Gozaliasl G., Guidi M., Gutierrez C. M., Hall A., Hartley W. G., Hemmati S., Hernández-Monteagudo C., Hildebrandt H., Hjorth J., Kajava J. J. E., Kang Y., Kansal V., Karagiannis D., Kiiveri K., Kirkpatrick C. C., Kruk S., Lattanzi M., Le Graet J., Legrand L., Lembo M., Lepori F., Leroy G., Lesgourgues J., Liaudat T. I., Liu S. J., Loureiro A., Macias-Perez J., Maggio G., Magliocchetti M., Mannucci F., Maoli R., Martín-Fleitas J., Martins C. J. A. P., Maurin L., Miluzio M., Monaco P., Moretti C., Morgante G., Nadathur S., Naidoo K., Natoli P., Navarro-Alsina A., Nesseris S., Passalacqua F., Paterson K., Patrizii L., Pisani A., Potter D., Quai S., Radovich M., Risso I., Rocci P.-F., Sacquegna S., Sahlén M., Sarpa E., Schneider A., Schultheis M., Sciotti D., Sellentin E., Sereno M., Smith L. C., Stadel J., Tanidis K., Tao C., Testera G., Teyssier R., Tosi S., Troja A., Tucci M., Valieri C., Venhola A., Vergani D., Vernardos G., Verza G., Vielzeuf P., Walton N. A.   +313 more
doaj   +1 more source

Gravitational lens on de Sitter background

Physical Review D, 2022
Gravitational lenses are examined in de-Sitter (dS) background, for which the existence of the dS horizon is taken into account and hyperbolic trigonometry is used together with the hyperbolic angular diameter distance. Spherical trigonometry is used to discuss a gravitational lens in anti-de Sitter (AdS) background.
Keita Takizawa, Hideki Asada
openaire   +2 more sources