Zobrazeno 1 - 10
of 189
pro vyhledávání: '"de Sá L."'
Binary population synthesis (BPS) is an essential tool for extracting information about massive binary evolution from gravitational-wave (GW) detections of compact object mergers. It has been successfully used to constrain the most likely permutation
Externí odkaz:
http://arxiv.org/abs/2410.11830
We perform a first study of the impact of varying two components of the initial conditions in binary population synthesis of compact binary mergers - the initial mass function, which is made metallicity- and star formation rate-dependent, and the orb
Externí odkaz:
http://arxiv.org/abs/2410.01451
Autor:
Horvath, J. E., Rocha, L. S., de Sá, L. M., Moraes, P. H. R. S., Barão, L. G., de Avellar, M. G. B., Bernardo, A., Bachega, R. R. A.
Context: Recently, Doroshenko and collaborators reported a very low-mass compact star, a Central Compact Object named XMMU J173203.3-344518 inside the supernova remnant HESS J1731-347. Its tiny mass is at odds with all calculations of minimum masses
Externí odkaz:
http://arxiv.org/abs/2303.10264
Autor:
de Sá, L. M., Bernardo, A., Bachega, R. R. A., Rocha, L. S., Moraes, P. H. R. S., Horvath, J. E.
The study of compact object populations has come a long way since the determination of the mass of the Hulse-Taylor pulsar, and we now count on more than 150 known Galactic neutron stars and black hole masses, as well as another 180 objects from bina
Externí odkaz:
http://arxiv.org/abs/2301.07780
In this work, we outline a mathematical description of biodiversity evolution throughout the Phanerozoic based on a simple coupled system of two differential equations and on the division of genera in two classes - Short-lived and Long-lived types, a
Externí odkaz:
http://arxiv.org/abs/2212.01693
The Strange Quark matter (SQM) hypothesis states that at extreme pressure and density conditions a new ground state of matter would arise, in which half of the \textit{down} quarks become strange quarks. If true, it would mean that at least the core
Externí odkaz:
http://arxiv.org/abs/2211.03687
Binary population synthesis provides a direct way of studying the effects of different choices of binary evolution models and initial parameter distributions on present-day binary compact merger populations, which can then be compared to empirical pr
Externí odkaz:
http://arxiv.org/abs/2211.02714
Autor:
de Sá, L. M., Bernardo, A., Bachega, R. R. A., Horvath, J. E., Rocha, L. S., Moraes, P. H. R. S.
The lack of objects between $2\,M_{\odot}$ and $5\,M_{\odot}$ in the joint mass distribution of compact objects has been termed "mass gap", and attributed mainly to the characteristics of the supernova mechanism precluding their birth. However, recen
Externí odkaz:
http://arxiv.org/abs/2211.01447
Autor:
Matsakos T., Chièze J.-P., Stehlé C., González M., Ibgui L., de Sá L., Lanz T., Orlando S., Bonito R., Argiroffi C., Reale F., Peres G.
Publikováno v:
EPJ Web of Conferences, Vol 64, p 04003 (2014)
The dynamics of YSO accretion shocks is determined by radiative processes as well as the strength and structure of the magnetic field. A quasi-periodic emission signature is theoretically expected to be observed, but observations do not confirm any s
Externí odkaz:
https://doaj.org/article/3f3ea43979904458b868767b77f6bb37
Autor:
Ibgui L., Orlando S., Stehlé C., Chièze J.-P., Hubeny I., Lanz T., de Sá L., Matsakos T., González M., Bonito R.
Publikováno v:
EPJ Web of Conferences, Vol 64, p 04005 (2014)
We address the problem of the contribution of radiation to the structure and dynamics of accretion shocks on Young Stellar Objects. Solving the 3D RTE (radiative transfer equation) under our “gray LTE approach”, i.e., using appropriate mean opaci
Externí odkaz:
https://doaj.org/article/aac5c61692644755a2a58514f196a3e3