Zobrazeno 1 - 10
of 432
pro vyhledávání: '"GRAVITATIONAL-WAVE SOURCES"'
Publikováno v:
The Astrophysical Journal Letters, Vol 976, Iss 1, p L10 (2024)
Some, if not all, binary neutron star (BNS) coalescences, and a fraction of neutron star–black hole (NSBH) mergers, are thought to produce sufficient mass ejection to power gamma-ray bursts (GRBs). However, this fraction, as well as the distributio
Externí odkaz:
https://doaj.org/article/bc5a8c44acd84ee9bb77455c2d6e6940
Autor:
Chen Wang, Julia Bodensteiner, Xiao-Tian Xu, Selma E. de Mink, Norbert Langer, Eva Laplace, Alejandro Vigna-Gómez, Stephen Justham, Jakub Klencki, Aleksandra Olejak, Ruggero Valli, Abel Schootemeijer
Publikováno v:
The Astrophysical Journal Letters, Vol 975, Iss 1, p L20 (2024)
Massive stars mainly form in close binaries, where their mutual interactions can profoundly alter their evolutionary paths. Evolved binaries consisting of a massive OB-type main-sequence star with a stripped helium star or a compact companion represe
Externí odkaz:
https://doaj.org/article/1b760492bfe243e786429ce597191f2d
Autor:
Jakob Stegmann, Alejandro Vigna-Gómez, Antti Rantala, Tom Wagg, Lorenz Zwick, Mathieu Renzo, Lieke A. C. van Son, Selma E. de Mink, Simon D. M. White
Publikováno v:
The Astrophysical Journal Letters, Vol 972, Iss 2, p L19 (2024)
A substantial fraction of stars can be found in wide binaries with projected separations between ∼10 ^2 and 10 ^5 au. In the standard lore of binary physics, these would evolve as effectively single stars that remotely orbit one another on stationa
Externí odkaz:
https://doaj.org/article/ae1d40135b914cfa9f7c5423ad573e29
Publikováno v:
The Astrophysical Journal Letters, Vol 972, Iss 1, p L4 (2024)
We present the first numerical study of gravitational waves (GWs) from collapsar disks, using state-of-the-art 3D general relativistic magnetohydrodynamic simulations of collapsing stars. These simulations incorporate a fixed Kerr metric for the cent
Externí odkaz:
https://doaj.org/article/2d37a7ef95394f999aedbe7807a805b1
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L34 (2024)
Although stable neutron stars (NSs) can in principle exist down to masses M _ns ≈ 0.1 M _⊙ , standard models of stellar core-collapse predict a robust lower limit M _ns ≳ 1.2 M _⊙ , roughly commensurate with the Chandrasekhar mass M _Ch of th
Externí odkaz:
https://doaj.org/article/becd1313546e43428cc03cb2a129d67c
Autor:
Emily R. Liepold, Chung-Pei Ma
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L29 (2024)
We construct the z = 0 galaxy stellar mass function (GSMF) by combining the GSMF at stellar masses M _* ≲ 10 ^11.3 M _⊙ from the census study of Leja et al. and the GSMF of massive galaxies at M _* ≳ 10 ^11.5 M _⊙ from the volume-limited MASS
Externí odkaz:
https://doaj.org/article/210275d0b4ee40a79db8e4c9f9eff682
Autor:
Nathan Rutherford, Melissa Mendes, Isak Svensson, Achim Schwenk, Anna L. Watts, Kai Hebeler, Jonas Keller, Chanda Prescod-Weinstein, Devarshi Choudhury, Geert Raaijmakers, Tuomo Salmi, Patrick Timmerman, Serena Vinciguerra, Sebastien Guillot, James M. Lattimer
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L19 (2024)
Pulse profile modeling of X-ray data from the Neutron Star Interior Composition Explorer is now enabling precision inference of neutron star mass and radius. Combined with nuclear physics constraints from chiral effective field theory ( χ EFT), and
Externí odkaz:
https://doaj.org/article/e4e6b5746b5c4e52963bcc4cf4f11114
Autor:
William G. Lamb, Stephen R. Taylor
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L10 (2024)
A population of compact object binaries emitting gravitational waves that are not individually resolvable will form a stochastic gravitational-wave signal. While the expected spectrum over population realizations is well known from Phinney, its highe
Externí odkaz:
https://doaj.org/article/f535307c9ff3423eaf22d2a713030389
Autor:
Keith Riles
Publikováno v:
Living Reviews in Relativity, Vol 26, Iss 1, Pp 1-154 (2023)
Abstract Now that detection of gravitational-wave signals from the coalescence of extra-galactic compact binary star mergers has become nearly routine, it is intriguing to consider other potential gravitational-wave signatures. Here we examine the pr
Externí odkaz:
https://doaj.org/article/ba4fdf9cb2824b0f8e527118a74e7e59
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