Zobrazeno 1 - 10
of 1 859
pro vyhledávání: '"Goobar A"'
Autor:
Deckers, M., Maguire, K., Shingles, L., Dimitriadis, G., Rigault, M., Smith, M., Goobar, A., Nordin, J., Johansson, J., Amenouche, M., Burgaz, U., Dhawan, S., Ginolin, M., Harvey, L., Kenworthy, W. D., Kim, Y. -L., Laher, R. R., Luo, N., Kulkarni, S. R., Masci, F. J., Müller-Bravo, T. E., Nugent, P. E., Pletskova, N., Purdum, J., Racine, B., Sollerman, J., Terwel, J. H.
Type Ia supernova (SN Ia) light curves have a secondary maximum that exists in the $r$, $i$, and near-infrared filters. The secondary maximum is relatively weak in the $r$ band, but holds the advantage that it is accessible, even at high redshift. We
Externí odkaz:
http://arxiv.org/abs/2406.19460
Since a few years, we have finally entered the era of discoveries of multiply-imaged gravitationally lensed supernovae. To date, all cluster lensed supernovae have been found from space, while those deflected by individual galaxies were identified wi
Externí odkaz:
http://arxiv.org/abs/2406.13519
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:
Popovic, B., Rigault, M., Smith, M., Ginolin, M., Goobar, A., Kenworthy, W. D., Ganot, C., Ruppin, F., Dimitriadis, G., Johansson, J., Amenouche, M., Aubert, M., Barjou-Delayre, C., Burgaz, U., Carreres, B., Feinstein, F., Fouchez, D., Galbany, L., de Jaeger, T., Kim, Y. -L., Lacroix, L., Nugent, P. E., Racine, B., Rosselli, D., Rosnet, P., Sollerman, J., Hale, D., Laher, R., Müller-Bravo, T. E., Reed, R., Rusholme, B., Terwel, J.
Type Ia supernova (SNIa) are excellent probes of local distance, and the increasing sample sizes of SNIa have driven an increased need to study the associated systematic uncertainties and improve the standardisation methods in preparation for the nex
Externí odkaz:
http://arxiv.org/abs/2406.06215
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:
Dhawan, S., Mortsell, E., Johansson, J., Goobar, A., Rigault, M., Smith, M., Maguire, K., Nordin, J., Dimitriadis, G., Nugent, P. E., Galbany, L., Sollerman, J., de Jaeger, T., Terwel, J. H., Kim, Y. -L., Burgaz, Umut, Helou, G., Purdum, J., Groom, S. L., Laher, R., Healy, B.
Understanding Type Ia supernovae (SNe~Ia) and the empirical standardisation relations that make them excellent distance indicators is vital to improving cosmological constraints. SN~Ia ``siblings", i.e. two or more SNe~Ia in the same host or parent g
Externí odkaz:
http://arxiv.org/abs/2406.01434
Autor:
Ruppin, F., Rigault, M., Ginolin, M., Dimitriadis, G., Goobar, A., Johansson, J., Maguire, K., Nordin, J., Smith, M., Aubert, M., Biedermann, J., Copin, Y., Burgaz, U., Carreres, B., Feinstein, F., Fouchez, D., Muller-Bravo, T. E., Galbany, L., Groom, S. L., Kenworthy, W. D., Kim, Y. -L., Laher, R. R., Nugent, P., Popovic, B., Purdum, J., Racine, B., Rosnet, P., Rosselli, D., Sollerman, J., Terwel, J. H.
Understanding the impact of the astrophysical environment on Type Ia supernova (SN Ia) properties is crucial to minimize systematic uncertainties in cosmological analyses based on this probe. We investigate the dependence of the SN Ia SALT2.4 light-c
Externí odkaz:
http://arxiv.org/abs/2406.01108
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