Zobrazeno 1 - 10
of 21
pro vyhledávání: '"O. G. Benvenuto"'
Publikováno v:
Universe, Vol 5, Iss 6, p 144 (2019)
In this talk, we summarize the work in progress toward a full characterization of strange star−strange star (SS−SS) mergers related to the GW/GRB/kilonova events. In addition, we show that the a priori probability constructed from the observed ne
Externí odkaz:
https://doaj.org/article/adbca2c3284e46b58df21698c29fa1e0
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:3101-3111
We present a new spectroscopic orbit of the O-type binary system HD 152147. We identify absorption lines in both components and use their radial velocities to determine the orbit, which results in a period of P = 50.2199 ± 0.0007 d, an eccentricity
V404 Cyg is a Low Mass X-Ray Binary (LMXB) system that has undergone outbursts in 1938, 1989, and 2015. During these events, it has been possible to determine relevant data of the system; such as the masses of the compact object (a black hole, BH) an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c9368371e1194c0f7f19a6e0f685404
Autor:
O. G. Benvenuto, E. Bauer
Publikováno v:
Physical Review C. 104
We study the expansion of neutron star (NS) matter containing hyperons $\mathrm{\ensuremath{\Lambda}}$ from high densities up to the end of nucleosynthesis. This process should occur in NS-NS or NS--black hole collisions. Hyperons $\mathrm{\ensuremat
Autor:
O G Benvenuto
Publikováno v:
Journal of Physics G: Nuclear and Particle Physics. 31:L13-L17
We show that the presence of a strange matter core inside a white dwarf (WD) star produces a drastic change in the spectrum of non-radial oscillations in the range of periods corresponding to gravity modes. The distinctive, observable signal for such
Autor:
O. G. Benvenuto, L. G. Althaus
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We present detailed evolutionary calculations for carbon - oxygen - and helium - core white dwarf models with masses ranging from M = 0.1 to M = 1.2 M⊙ and for metallicities Z = 0.001 and Z = 0. The sequences cover a wide range of hydrogen envelope
Autor:
Carlos Feinstein, Adriano Guarnieri, S. N. Mitronova, Mariano Mendez, Grigory Beskin, M. Yu. Popova, V. L. Plokhotnichenko, A. V. Zhuravkov, Corrado Bartolini, O. G. Benvenuto, Adalberto Piccioni, R. Minarini, S. I. Neizvestny
Publikováno v:
ResearcherID
We present the results of a search for ultrafast optical variability among 11 low-mass X-ray binaries (LMXBs). Observations have been carried out with the hard- and soft-ware photometrical complex MANIA (Multichannel Analysis of Nanosecond Intensity
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We calculate the simultaneous in situ formation of Jupiter and Saturn by the core instability mechanism considering the oligarchic growth regime for the accretion of planetesimals. We consider a density distribution for the size of planetesimals and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89a9d6fc624873a4151d3d4215ded963
http://sedici.unlp.edu.ar/handle/10915/82616
http://sedici.unlp.edu.ar/handle/10915/82616
Autor:
Adalberto Piccioni, V. L. Plokhotnichenko, Grigory Beskin, R. Minarini, M. Yu. Popoval, Corrado Bartolini, S. N. Mitronova, O. G. Benvenuto, Carlos Feinstein, M. Mendez, A. Guarnieri, S. I. Neizvestny
Publikováno v:
Flares and Flashes ISBN: 9783540600572
In order to study very rapid optical variability of astrophysical objects on time scales between 10 −7 s and 10 2 s (Shvartsman 1977), at SAO the MANIA (Multichannel Analysis of Nanosecond Intensity Alterations) experiment is being used. A special
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c05c853275196aea4b89b21d967ae07
https://doi.org/10.1007/3-540-60057-4_305
https://doi.org/10.1007/3-540-60057-4_305
Autor:
O. G. Benvenuto
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We study the properties of the non-radial pulsations of strange dwarf stars. These objects are white dwarfs (WDs) with a compact core made up of strange quark matter (SQM). We show that the SQM core compresses the surrounding normal matter strongly e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1724fc2a4fbb424d088b7a276b73ad78
http://sedici.unlp.edu.ar/handle/10915/83163
http://sedici.unlp.edu.ar/handle/10915/83163