Zobrazeno 1 - 10
of 100 179
pro vyhledávání: '"Townsend, A."'
Autor:
Russo, Jorge G., Townsend, Paul K.
For any causal nonlinear electrodynamics theory that is "self-dual" (electromagnetic $U(1)$-duality invariant), the Legendre-dual pair of Lagrangian and Hamiltonian densities $\{\mathcal{L},\mathcal{H}\}$ are constructed from functions $\{\ell,h\}$ o
Externí odkaz:
http://arxiv.org/abs/2407.02577
Autor:
Aubert, M., Rosnet, P., Popovic, B., Ruppin, F., Smith, M., Rigault, M., Dimitriadis, G., Goobar, A., Johansson, J., Barjou-Delayre, C., Burgaz, U., Carreres, B., Feinstein, F., Fouchez, D., Galbany, L., Ginolin, M., de Jaeger, T., Kasliwal, M. M., Kim, Y. -L., Lacroix, L., Masci, F. J., Müller-Bravo, T. E., Racine, B., Ravoux, C., Regnault, N., Riddle, R. L., Rosselli, D., Rusholme, B., Smith, R., Sollerman, J., Terwel, J. H., Townsend, A.
The unprecedented statistics of detected Type Ia supernovae (SNe Ia) brought by the Zwicky Transient Facility enables us to probe the impact of the Large-Scale Structure on the properties of these objects. The goal of this paper is to explore the pos
Externí odkaz:
http://arxiv.org/abs/2406.11680
Autor:
Rigault, M., Smith, M., Regnault, N., Kenworthy, D. W., Maguire, K., Goobar, A., Dimitriadis, G., Amenouche, M., Aubert, M., Barjou-Delayre, C., Bellm, C. E., Burgaz, U., Carreres, B., Copin, Y., Deckers, M., de Jaeger, T., Dhawan, S., Feinstein, F., Fouchez, D., Galbany, L., Ginolin, M., Graham, J. M., Kim, Y. -L., Kowalski, M., Kuhn, D., Kulkarni, R. S., Muller-Bravo, E. T., Nordin, K., Popovic, M., Purdum, J., Rosnet, P., Rosselli, D., Racine, B., Ruppin, F., Sollerman, J., Terwel, H. J., Townsend, A.
Type Ia supernova (SN Ia) cosmology relies on the estimation of lightcurve parameters to derive precision distances that leads to the estimation of cosmological parameters. The empirical SALT2 lightcurve modeling that relies on only two parameters, a
Externí odkaz:
http://arxiv.org/abs/2406.02073
Autor:
Ginolin, M., Rigault, M., Copin, Y., Popovic, B., Dimitriadis, G., Goobar, A., Johansson, J., Maguire, K., Nordin, J., Smith, M., Aubert, M., Barjou-Delayre, C., Burgaz, U., Carreres, B., Dhawan, S., Deckers, M., Feinstein, F., Fouchez, D., Galbany, L., Ganot, C., de Jaeger, T., Kim, Y. -L., Kuhn, D., Lacroix, L., Müller-Bravo, T. E., Nugent, P., Racine, B., Rosnet, P., Rosselli, D., Ruppin, F., Sollerman, J., Terwel, J. H., Townsend, A., Dekany, R., Graham, M., Kasliwal, M., Groom, S. L., Purdum, J., Rusholme, B., van der Walt, S.
As Type Ia supernova cosmology transitions from a statistics dominated to a systematics dominated era, it is crucial to understand leftover unexplained uncertainties affecting their luminosity, such as the ones stemming from astrophysical biases. Ind
Externí odkaz:
http://arxiv.org/abs/2406.02072
Autor:
Soares-Furtado, Melinda, Limbach, Mary Anne, Vanderburg, Andrew, Bally, John, Becker, Juliette, Rosen, Anna L., Bouma, Luke G., Vos, Johanna M., Howell, Steve B., Beatty, Thomas G., Best, William M. J., Cody, Anne Marie, Distler, Adam, D'Onghia, Elena, Heller, René, Hensley, Brandon S., Hinkel, Natalie R., Jackson, Brian, Kounkel, Marina, Kraus, Adam, Mann, Andrew W., Marston, Nicholas T., Robberto, Massimo, Rodriguez, Joseph E., Steffen, Jason H., Teske, Johanna K., Townsend, Richard, Yarza, Ricardo, Youngblood, Allison
The TEMPO (Transiting Exosatellites, Moons, and Planets in Orion) Survey is a proposed 30-day observational campaign using the Nancy Grace Roman Space Telescope. By providing deep, high-resolution, short-cadence infrared photometry of a dynamic star-
Externí odkaz:
http://arxiv.org/abs/2406.01492
For an internal category $\mathbb{C}$ in a cartesian category $\mathcal{C}$ we define, naturally in objects $X$ of $\mathcal{C}$, $Prin_{\mathbb{C}}(X)$. This is a category whose objects are principal $c \mathbb{C}$-bundles over $X$ and whose morphis
Externí odkaz:
http://arxiv.org/abs/2406.01573
Autor:
Ginolin, M., Rigault, M., Smith, M., Copin, Y., Ruppin, F., Dimitriadis, G., Goobar, A., Johansson, J., Maguire, K., Nordin, J., Amenouche, M., Aubert, M., Barjou-Delayre, C., Betoule, M., Burgaz, U., Carreres, B., Deckers, M., Dhawan, S., Feinstein, F., Fouchez, D., Galbany, L., Ganot, C., Harvey, L., de Jaeger, T., Kenworthy, W. D., Kim, Y. -L., Kowalski, M., Kuhn, D., Lacroix, L., Muller-Bravo, T. E., Nugent, P., Popovic, B., Racine, B., Rosnet, P., Rosselli, D., Sollerman, J., Terwel, J. H., Townsend, A., Brugger, J., Bellm, E. C., Kasliwal, M. M., Kulkarni, S., Laher, R. R., Masci, F. J., Riddle, R. L., Sharma, Y.
To get distances, Type Ia Supernovae magnitudes are corrected for their correlation with lightcurve width and colour. Here we investigate how this standardisation is affected by the SN environment, with the aim to reduce scatter and improve standardi
Externí odkaz:
http://arxiv.org/abs/2405.20965
Autor:
Carreres, B., Rosselli, D., Bautista, J. E., Feinstein, F., Fouchez, D., Racine, B., Ravoux, C., Sanchez, B., Dimitriadis, G., Goobar, A., Johansson, J., Nordin, J., Rigault, M., Smith, M., Amenouche, M., Aubert, M., Barjou-Delayre, C., Burgaz, U., Kenworthy, W. D'Arcy, De Jaeger, T., Dhawan, S., Galbany, L., Ginolin, M., Kuhn, D., Kowalski, M., Müller-Bravo, T. E., Nugent, P. E., Popovic, B., Rosnet, P., Ruppin, F., Sollerman, J., Terwel, J. H., Townsend, A., Groom, S. L., Kulkarni, S. R., Purdum, J., Rusholme, B., Sravan, N.
SNe Ia are used to determine the distance-redshift relation and build the Hubble diagram. Neglecting their host-galaxy peculiar velocities (PVs) may bias the measurement of cosmological parameters. The smaller the redshift, the larger the effect is.
Externí odkaz:
http://arxiv.org/abs/2405.20409
Autor:
Carracedo, A. Sagués, Goobar, A., Mörtsell, E., Arendse, N., Johansson, J., Townsend, A., Dhawan, S., Nordin, J., Sollerman, J., Schulze, S.
The Zwicky Transient Facility (ZTF) was expected to detect more than one strong gravitationally-lensed supernova (glSN) per year, but only one event was identified in the first four years of the survey. This work investigates selection biases in the
Externí odkaz:
http://arxiv.org/abs/2406.00052
Autor:
Townsend, A., Nordin, J., Carracedo, A. Sagués, Kowalski, M., Arendse, N., Dhawan, S., Goobar, A., Johansson, J., Mörtsell, E., Schulze, S., Andreoni, I., Fernández, E., Kim, A. G., Nugent, P. E., Prada, F., Rigault, M., Sarin, N., Sharma, D., Bellm, E. C., Coughlin, M. W., Dekany, R., Groom, S. L., Lacroix, L., Laher, R. R., Riddle, R., Aguilar, J., Ahlen, S., Bailey, S., Brooks, D., Claybaugh, T., de la Macorra, A., Dey, A., Dey, B., Doel, P., Fanning, K., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. Gontcho A, Honscheid, K., Howlett, C., Kisner, T., Kremin, A., Lambert, A., Landriau, M., Guillou, L. Le, Levi, M. E., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Mueller, E., Myers, A. D., Nie, J., Palanque-Delabrouille, N., Poppett, C., Rezaie, M., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Seo, H., Sprayberry, D., Tarlé, G., Zou, H.
Gravitationally lensed Type Ia supernovae (glSNe Ia) are unique astronomical tools for studying cosmological parameters, distributions of dark matter, the astrophysics of the supernovae and the intervening lensing galaxies themselves. Only a few high
Externí odkaz:
http://arxiv.org/abs/2405.18589