Zobrazeno 1 - 10
of 10 585
pro vyhledávání: '"Silva L. A."'
Autor:
Teixeira, G., Bom, C. R., Santana-Silva, L., Fraga, B. M. O., Darc, P., Teixeira, R., Wu, J. F., Ferguson, P. S., Martínez-Vázquez, C. E., Riley, A. H., Drlica-Wagner, A., Choi, Y., Mutlu-Pakdil, B., Pace, A. B., Sakowska, J. D., Stringfellow, G. S.
Photometric wide-field surveys are imaging the sky in unprecedented detail. These surveys face a significant challenge in efficiently estimating galactic photometric redshifts while accurately quantifying associated uncertainties. In this work, we ad
Externí odkaz:
http://arxiv.org/abs/2408.15243
Autor:
Koposov, Sergey E., Allende-Prieto, C., Cooper, A. P., Li, T. S., Silva, L. Beraldo e, Kim, B., Carrillo, A., Dey, A., Manser, C. J., Nikakhtar, F., Riley, A. H., Rockosi, C., Valluri, M., Aguilar, J., Ahlen, S., Bailey, S., Blum, R., Brooks, D., Claybaugh, T., Cole, S., de la Macorra, A., Dey, B., Forero-Romero, J. E., Gaztañaga, E., Guy, J., Kremin, A., Guillou, L. Le, Levi, Michael E., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Nie, J., Palanque-Delabrouille, N., Percival, W. J., Rezaie, M., Rossi, G., Sanchez, E., Schlafly, E. F., Schubnell, M., Tarlé, G., Weaver, B. A., Zhou, Z.
We present the stellar value-added catalogue based on the Dark Energy Spectroscopic Instrument (DESI) Early Data Release. The catalogue contains radial velocity and stellar parameter measurements for $\simeq$ 400,000 unique stars observed during comm
Externí odkaz:
http://arxiv.org/abs/2407.06280
Autor:
Bom, C. R., Alfradique, V., Palmese, A., Teixeira, G., Santana-Silva, L., Santos, A., Darc, P.
We present a new constraint on the Hubble constant ($H_0$) from the standard dark siren method using a sample of $5$ well-covered gravitational wave (GW) alerts reported during the first part of the fourth LIGO/Virgo/KAGRA observing runs in combinati
Externí odkaz:
http://arxiv.org/abs/2404.16092
Publikováno v:
A&A 685, A81 (2024)
Recent work presented increasing evidence of high, non-constant S/O abundance ratios observed in star-forming metal-poor galaxies, showing deviations from the constant canonical S/O across a large range of O/H abundance. Similar peculiar high Fe/O ra
Externí odkaz:
http://arxiv.org/abs/2402.13240
Publikováno v:
New Astronomy, Volume 112, June 2024, Pages 102261
We present ab initio global general-relativistic Particle-in-cell (GR-PIC) simulations of compact millisecond neutron star magnetospheres in the axisymmetric aligned rotator configuration. We investigate the role of GR and plasma supply on the polar
Externí odkaz:
http://arxiv.org/abs/2401.02908
Autor:
Arrowsmith, C. D., Simon, P., Bilbao, P., Bott, A. F. A., Burger, S., Chen, H., Cruz, F. D., Davenne, T., Efthymiopoulos, I., Froula, D. H., Goillot, A. M., Gudmundsson, J. T., Haberberger, D., Halliday, J., Hodge, T., Huffman, B. T., Iaquinta, S., Miniati, F., Reville, B., Sarkar, S., Schekochihin, A. A., Silva, L. O., Simpson, R., Stergiou, V., Trines, R. M. G. M., Vieu, T., Charitonidis, N., Bingham, R., Gregori, G.
Relativistic electron-positron plasmas are ubiquitous in extreme astrophysical environments such as black holes and neutron star magnetospheres, where accretion-powered jets and pulsar winds are expected to be enriched with such pair plasmas. Their b
Externí odkaz:
http://arxiv.org/abs/2312.05244
Autor:
Quispe-Huaynasi, F., Roig, F., Placco, V. M., Silva, L. Beraldo e, Daflon, S., Pereira, C. B., Kanaan, A., de Oliveira, C. Mendes, Ribeiro, T., Schoenell, W.
In general, the atypical high velocity of some stars in the Galaxy can only be explained by invoking acceleration mechanisms related to extreme astrophysical events in the Milky Way. Using astrometric data from Gaia and the photometric information in
Externí odkaz:
http://arxiv.org/abs/2311.11940
Autor:
Alfradique, V., Bom, C. R., Palmese, A., Teixeira, G., Santana-Silva, L., Drlica-Wagner, A., Riley, A. H., Martínez-Vázquez, C. E., Sand, D. J., Stringfellow, G. S., Medina, G. E., Carballo-Bello, J. A., Choi, Y., Esteves, J., Limberg, G., Mutlu-Pakdil, B., Noël, N. E. D., Pace, A. B., Sakowska, J. D., Wu, J. F.
The current and next observation seasons will detect hundreds of gravitational waves (GWs) from compact binary systems coalescence at cosmological distances. When combined with independent electromagnetic measurements, the source redshift will be kno
Externí odkaz:
http://arxiv.org/abs/2310.13695
Autor:
Yassine, R. Abou, Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Becker, M., Behnke, C., Berger-Chen, J. C., Blanco, A., Blume, C., Böhmer, M., Chlad, L., Chudoba, P., Ciepał, I., Deb, S., Deveaux, C., Dittert, D., Dreyer, J., Epple, E., Fabbietti, L., Fonte, P., Franco, C., Friese, J., Fröhlich, I., Förtsch, J., Galatyuk, T., Garzón, J. A., Gernhäuser, R., Greifenhagen, R., Grunwald, M., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Höhne, C., Hojeij, F., Holzmann, R., Idzik, M., Kämpfer, B., Kampert, K-H., Kardan, B., Kedych, V., Koenig, I., Koenig, W., Kohls, M., Kolas, J., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Krueger, W., Kugler, A., Kunz, T., Lalik, R., Lapidus, K., Linev, S., Linz, F., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Mikhaylov, V., Molenda, A., Müntz, C., Münzer, R., Nabroth, M., Naumann, L., Nowakowski, K., Orliński, J., Otto, J. -H., Parpottas, Y., Parschau, M., Pauly, C., Pechenov, V., Pechenova, O., Piasecki, K., Pietraszko, J., Povar, T., Prościnki, P., Prozorov, A., Przygoda, W., Pysz, K., Ramstein, B., Rathod, N., Rodriguez-Ramos, P., Rost, A., Rustamov, A., Salabura, P., Scheib, T., Schild, N., Schmidt-Sommerfeld, K., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Spataro, S., Spies, S., Stefaniak, M., Ströbele, H., Stroth, J., Sturm, C., Sumara, K., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Vazquez-Doce, O., Wagner, V., Weber, A. A., Wendisch, C., Wiebusch, M. G., Wirth, J., Wladyszewska, A, Zbroszczyk, H. P., Zherebtsova, E., Zielinski, M., Zumbruch, P.
Inclusive e$^+$e$^-$ production has been studied with HADES in $\pi^-$ + p, $\pi^-$ + C and $\pi^- + \mathrm{CH}_2$ reactions, using the GSI pion beam at $\sqrt{s_{\pi p}}$ = 1.49 GeV. Invariant mass and transverse momentum distributions have been me
Externí odkaz:
http://arxiv.org/abs/2309.13357
Autor:
Bom, C. R., Cortesi, A., Ribeiro, U., Dias, L. O., Kelkar, K., Castelli, A. V. Smith, Santana-Silva, L., Silva, V., Gonçalves, T. S., Abramo, L. R., Lima, E. V. R., Almeida-Fernandes, F., Espinosa, L., Li, L., Buzzo, M. L., de Oliveira, C. Mendes, Sodré Jr., L., Alvarez-Candal, A., Grossi, M., Telles, E., Torres-Flores, S., Werner, S. V., Kanaan, A., Ribeiro, T., Schoenell, W.
The morphological diversity of galaxies is a relevant probe of galaxy evolution and cosmological structure formation. However, in large sky surveys, even the morphological classification of galaxies into two classes, like late-type (LT) and early-typ
Externí odkaz:
http://arxiv.org/abs/2306.08684