Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/295674
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Hubble constant and nuclear equation of state from kilonova spectro-photometric light curves |
Autor: | Pérez-García, M. A.; Izzo, L.; Barba-González, D.; Bulla, M.; Sagués-Carracedo, A.; Pérez Jiménez, Enrique CSIC ORCID ; Albertus, C.; Dhawan, S.; Prada, Francisco CSIC ORCID ; Agnello, A.; Angus, C. R.; Bruun, S. H.; del Burgo, C.; Dominguez-Tagle, C.; Gall, C.; Goobar, A.; Hjorth, Jens; Jones, D.; López-Sánchez, A. R.; Sollerman, J. | Palabras clave: | Radiative transfer Stars: neutron Cosmological parameters Gravitational waves Equation of state |
Fecha de publicación: | 7-oct-2022 | Editor: | EDP Sciences | Citación: | Astronomy & Astrophysics 666: A67 (2022) | Resumen: | The merger of two compact objects of which at least one is a neutron star is signalled by transient electromagnetic emission in a kilonova (KN). This event is accompanied by gravitational waves and possibly other radiation messengers such as neutrinos or cosmic rays. The electromagnetic emission arises from the radioactive decay of heavy r-process elements synthesized in the material ejected during and after the merger. In this paper we show that the analysis of KNe light curves can provide cosmological distance measurements and constrain the properties of the ejecta. In this respect, MAAT, the new Integral Field Unit in the OSIRIS spectrograph on the 10.4 m Gran Telescopio CANARIAS (GTC), is well suited for the study of KNe by performing absolute spectro-photometry over the entire 3600 − 10 000 Å spectral range. Here, we study the most representative cases regarding the scientific interest of KNe from binary neutron stars, and we evaluate the observational prospects and performance of MAAT on the GTC to do the following: (a) study the impact of the equation of state on the KN light curve, and determine to what extent bounds on neutron star (NS) radii or compactness deriving from KN peak magnitudes can be identified and (b) measure the Hubble constant, H0, with precision improved by up to 40%, when both gravitational wave data and photometric-light curves are used. In this context we discuss how the equation of state, the viewing angle, and the distance affect the precision and estimated value of H0. © M. A. Pérez-García et al. | Descripción: | This is an Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | Versión del editor: | http://dx.doi.org/10.1051/0004-6361/202243749 | URI: | http://hdl.handle.net/10261/295674 | DOI: | 10.1051/0004-6361/202243749 | ISSN: | 0004-6361 | E-ISSN: | 1432-0746 |
Aparece en las colecciones: | (IAA) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
2022A&A...666A..67P.pdf | 3,77 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
4
checked on 13-abr-2024
WEB OF SCIENCETM
Citations
2
checked on 29-feb-2024
Page view(s)
33
checked on 18-abr-2024
Download(s)
15
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons