Zobrazeno 1 - 10
of 2 253 355
pro vyhledávání: '"P A, David"'
Since its first description in 1948, the Casimir effect has been studied extensively. Standard arguments for its existence hinge on the elimination of certain modes of the electromagnetic field because of the boundary conditions in the Casimir cavity
Externí odkaz:
http://arxiv.org/abs/2412.10179
Autor:
Du, Rong, Cook, David O., Bhattacharjee, Soumyadeep, Kulkarni, Shrinivas R., Fremling, Christoffer, Kaplan, David L., Kasliwal, Mansi M., Laher, Russ R., Masci, Frank J., Shupe, David L., Zhang, Chaoran
We investigate the efficacy of a systematic planetary nebula (PN) search in the Census of the Local Universe (CLU) narrowband (H$\alpha$) survey that covers a considerably larger sky region of above declination $-20^\circ$ than most previous surveys.
Externí odkaz:
http://arxiv.org/abs/2412.09836
In this article, we claim that axion-like particles (ALPs) with MeV masses can be produced with semi-relativistic velocities in core-collapse supernovae (SNe), generating a diffuse galactic flux. We show that these ALPs can be detected in neutrino wa
Externí odkaz:
http://arxiv.org/abs/2412.09595
We study the photothermal conversion in plasmonic nanohelices, unveiling how helical nanostructures made from metals with a notable interband activity, such as cobalt (Co) and nickel (Ni), exhibit a remarkable temperature rise $\Delta$T up to $\appro
Externí odkaz:
http://arxiv.org/abs/2412.06021
Autor:
Whitford, Abbé M., Rivera-Morales, Hugo, Howlett, Cullan, Vargas-Magaña, Mariana, Fromenteau, Sébastien, Davis, Tamara M., Pérez-Fernández, Alejandro, de Mattia, Arnaud, Ahlen, Steven, Bianchi, Davide, Brooks, David, Burtin, Etienne, Claybaugh, Todd, de la Macorra, Axel, Doel, Peter, Ferraro, Simone, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Juneau, Stephanie, Kehoe, Robert, Kirkby, David, Kisner, Theodore, Koposov, Sergey, Landriau, Martin, Guillou, Laurent Le, Meisner, Aaron, Miquel, Ramon, Prada, Francisco, Pérez-Ràfols, Ignasi, Rossi, Graziano, Sanchez, Eusebio, Schubnell, Michael, Sprayberry, David, Tarlé, Gregory, Weaver, Benjamin Alan, Zarrouk, Pauline, Zou, Hu
In the early Universe, neutrinos decouple quickly from the primordial plasma and propagate without further interactions. The impact of free-streaming neutrinos is to create a temporal shift in the gravitational potential that impacts the acoustic wav
Externí odkaz:
http://arxiv.org/abs/2412.05990
Autor:
Fiore, William, McLaughlin, Maura A., Agazie, Gabriella, Anumarlapudi, Akash, Archibald, Anne M., Arzoumanian, Zaven, Baker, Paul T., Brook, Paul R., Cromartie, H. Thankful, Crowter, Kathryn, DeCesar, Megan E., Demorest, Paul B., Dey, Lankeswar, Dolch, Timothy, Ferrara, Elizabeth C., Fonseca, Emmanuel, Freedman, Gabriel E., Garver-Daniels, Nate, Gentile, Peter A., Glaser, Joseph, Good, Deborah C., Hazboun, Jeffrey S., Jennings, Ross J., Jones, Megan L., Kaplan, David L., Kerr, Matthew, Lam, Michael T., Lorimer, Duncan R., Luo, Jing, Lynch, Ryan S., McEwen, Alexander, McMann, Natasha, Meyers, Bradley W., Ng, Cherry, Nice, David J., Pennucci, Timothy T., Perera, Benetge B. P., Pol, Nihan S., Radovan, Henri A., Ransom, Scott M., Ray, Paul S., Schmiedekamp, Ann, Schmiedekamp, Carl, Shapiro-Albert, Brent J., Stairs, Ingrid H., Stovall, Kevin, Susobhanan, Abhimanyu, Swiggum, Joseph K., Wahl, Haley M.
Pulse profile stability is a central assumption of standard pulsar timing methods. Thus, it is important for pulsar timing array experiments such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) to account for any pulse
Externí odkaz:
http://arxiv.org/abs/2412.05452
Autor:
Lojewski, Tobias, Guyader, Loïc Le, Agarwal, Naman, Boeglin, Christine, Carley, Robert, Castoldi, Andrea, Deiter, Carsten, Engel, Robin Y., Erdinger, Florian, Fangohr, Hans, Fiorini, Carlo, Gerasimova, Natalia, Gort, Rafael, de Groot, Frank, Hansen, Karsten, Hauf, Steffen, Hickin, David, Izquierdo, Manuel, Kämmerer, Lea, Van Kuiken, Benjamin E., Lomidze, David, Maffessanti, Stefano, Mercadier, Laurent, Mercurio, Giuseppe, Miedema, Piter S., Pace, Matthias, Porro, Matteo, Rezvani, Javad, Rothenbach, Nico, Rösner, Benedikt, Samartsev, Andrey, Schlappa, Justina, Stamm, Christian, Teichmann, Martin, Turcato, Monica, Yaroslavtsev, Alexander, Döring, Florian, Scherz, Andreas, David, Christian, Beye, Martin, Bovensiepen, Uwe, Wende, Heiko, Eschenlohr, Andrea, Ollefs, Katharina
Time-resolved X-ray absorption spectroscopy (tr-XAS) has been shown to be a versatile measurement technique for investigating non-equilibrium dynamics. Novel X-ray free electron laser (XFEL) facilities like the European XFEL offer increased repetitio
Externí odkaz:
http://arxiv.org/abs/2412.05151
Autor:
Labbe, Ivo, Greene, Jenny E., Matthee, Jorryt, Treiber, Helena, Kokorev, Vasily, Miller, Tim B., Kramarenko, Ivan, Setton, David J., Ma, Yilun, Goulding, Andy D., Bezanson, Rachel, Naidu, Rohan P., Williams, Christina C., Atek, Hakim, Brammer, Gabriel, Cutler, Sam E., Chemerynska, Iryna, Cloonan, Aidan P., Dayal, Pratika, de Graaff, Anna, Fudamoto, Yoshinobu, Fujimoto, Seiji, Furtak, Lukas J., Glazebrook, Karl, Heintz, Kasper E., Leja, Joel, Marchesini, Danilo, Nanayakkara, Themiya, Nelson, Erica J., Oesch, Pascal A., Pan, Richard, Price, Sedona H., Shivaei, Irene, Sobral, David, Suess, Katherine A., van Dokkum, Pieter, Wang, Bingjie, Weaver, John R., Whitaker, Katherine E., Zitrin, Adi
We present a detailed exploration of the most optically-luminous Little Red Dot ($L_{H\alpha}=10^{44}$erg/s, $L_V=10^{45}$erg/s, F444W=22AB) found to date. Located in the Abell 2744 field, source A744-45924 was observed by NIRSpec/PRISM with ultradee
Externí odkaz:
http://arxiv.org/abs/2412.04557
Autor:
Martinez, Romy Rodriguez, Eastman, Jason D., Collins, Karen, Rodriguez, Joseph, Charbonneau, David, Quinn, Samuel, Latham, David W., Ziegler, Carl, Brahm, Rafael, Fairnington, Tyler, Ulmer-Moll, Solene, Stassun, Keivan, Suarez, Olga, Guillot, Tristan, Hobson, Melissa, Winn, Joshua N., Kanodia, Shubham, Schlecker, Martin, Butler, R. P., Crane, Jeffrey D., Shectman, Steve, Teske, Johanna K., Osip, David, Beletsky, Yuri, Battley, Matthew P., Psaridi, Angelica, Figueira, Pedro, Lendl, Monika, Bouche, Francois, Udry, Stephane, Kunimoto, Michelle, Mekarnia, Dejamel, Abe, Lyu, Trifonov, Trifonov, Pinto, Marcelo T., Eberhardt, Jan, Espinoza, Nestor, Henning, Thomas, Jordan, Andres, Rojas, Felipe I., Barkaoui, Khalid, Relles, Howard M., Srdoc, Gregor, Collins, Kevin I., Seager, Sara, Shporer, Avi, Vezie, Michael, Hedges, Christina L., Mireles, Ismael
We present the detection and characterization of TOI-4994b (TIC 277128619b), a warm Saturn-sized planet discovered by the NASA Transiting Exoplanet Survey Satellite (TESS). TOI-4994b transits a G-type star (V = 12.6 mag) with a mass, radius, and effe
Externí odkaz:
http://arxiv.org/abs/2412.02769
Autor:
Agnorelli, Claudio, Spriggs, Meg, Godfrey, Kate, Sawicka, Gabriela, Bohl, Bettina, Douglass, Hannah, Fagiolini, Andrea, Parastoo, Hashemi, Carhart-Harris, Robin, Nutt, David, Erritzoe, David
Neuroplasticity, the ability of the nervous system to adapt throughout an organism's lifespan, offers potential as both a biomarker and treatment target for neuropsychiatric conditions. Psychedelics, a burgeoning category of drugs, are increasingly p
Externí odkaz:
http://arxiv.org/abs/2411.19840