Catálogo de publicaciones - revistas
Título de Acceso Abierto
The Astrophysical Journal (ApJ)
Resumen/Descripción – provisto por la editorial en inglés
The Astrophysical Journal is an open access journal devoted to recent developments, discoveries, and theories in astronomy and astrophysics. Publications in ApJ constitute significant new research that is directly relevant to astrophysical applications, whether based on observational results or on theoretical insights or modeling.Palabras clave – provistas por la editorial
astronomy; astrophysics
Disponibilidad
| Institución detectada | Período | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No detectada | desde jul. 1995 / hasta dic. 2023 | IOPScience |
Información
Tipo de recurso:
revistas
ISSN impreso
0004-637X
ISSN electrónico
1538-4357
Editor responsable
American Astronomical Society (AAS)
Idiomas de la publicación
- inglés
País de edición
Reino Unido
Información sobre licencias CC
Cobertura temática
Tabla de contenidos
Particle Acceleration in a Shock Wave Propagating to an Inhomogeneous Medium
Shota L. Yokoyama
; Yutaka Ohira
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 50
Stellar Variability in a Forming Massive Star Cluster
Yu Cheng; Morten Andersen; Jonathan Tan
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 51
Orbital Modulation of Gamma Rays from PSR J2339-0533
Hongjun An; Roger W. Romani; Matthew Kerr;
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 52
Infrared Dark Clouds and High-mass Star Formation Activity in Galactic Molecular Clouds
R. Retes-Romero; Y. D. Mayya; A. Luna; L. Carrasco
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 53
A Study of Millimeter Variability in FUor Objects
John Wendeborn; Catherine C. Espaillat; Enrique Macías; Orsolya Fehér; Á. Kóspál; Lee Hartmann; Zhaohuan Zhu; Michael M. Dunham; Marina Kounkel
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 54
A Measurement of the Degree-scale CMB B-mode Angular Power Spectrum with Polarbear
; S. Adachi; M. A. O. Aguilar Faúndez; K. Arnold; C. Baccigalupi; D. Barron; D. Beck; S. Beckman; F. Bianchini; D. Boettger; J. Borrill; J. Carron; S. Chapman; K. Cheung; Y. Chinone; K. Crowley; A. Cukierman; M. Dobbs; H. El Bouhargani; T. Elleflot; J. Errard; G. Fabbian; C. Feng; T. Fujino; N. Galitzki; N. Goeckner-Wald; J. Groh; G. Hall; N. Halverson; T. Hamada; M. Hasegawa; M. Hazumi; C. A. Hill; L. Howe; Y. Inoue; G. Jaehnig; O. Jeong; D. Kaneko; N. Katayama; B. Keating; R. Keskitalo; S. Kikuchi; T. Kisner; N. Krachmalnicoff; A. Kusaka; A. T. Lee; D. Leon; E. Linder; L. N. Lowry; A. Mangu; F. Matsuda; Y. Minami; M. Navaroli; H. Nishino; A. T. P. Pham; D. Poletti; G. Puglisi; C. L. Reichardt; Y. Segawa; M. Silva-Feaver; P. Siritanasak; N. Stebor; R. Stompor; A. Suzuki; O. Tajima; S. Takakura; S. Takatori; D. Tanabe; G. P. Teply; C. Tsai; C. Verges; B. Westbrook; Y. Zhou
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 55
Chemical Desorption versus Energy Dissipation: Insights from Ab Initio Molecular Dynamics of HCO· Formation
Stefano Pantaleone; Joan Enrique-Romero; Cecilia Ceccarelli; Piero Ugliengo; Nadia Balucani; Albert Rimola
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 56
Intrinsic Properties of the Engine and Jet that Powered the Short Gamma-Ray Burst Associated with GW170817
Davide Lazzati; Riccardo Ciolfi; Rosalba Perna
<jats:title>Abstract</jats:title> <jats:p>GRB 170817A was a subluminous short gamma-ray burst detected about 1.74 s after the gravitational wave signal GW170817 from a binary neutron star (BNS) merger. It is now understood as an off-axis event powered by the cocoon of a relativistic jet pointing 15°–30° away from the direction of observation. The cocoon was energized by the interaction of the incipient jet with the non-relativistic baryon wind from the merger remnant, resulting in a structured outflow with a narrow core and broad wings. In this paper, we couple the observational constraints on the structured outflow with a model for the jet–wind interaction to constrain the <jats:italic>intrinsic</jats:italic> properties with which the jet was launched by the central engine, including its time delay from the merger event. Using wind prescriptions inspired by magnetized BNS merger simulations, we find that the jet was launched within about 0.4 s from the merger, implying that the 1.74 s observed delay was dominated by the fireball propagation up to the photospheric radius. We also constrain, for the first time for any gamma-ray burst, the jet opening angle at injection and set a lower limit to its asymptotic Lorentz factor. These findings suggest an initially Poynting-flux dominated jet, launched via electromagnetic processes. If the jet was powered by an accreting black hole, they also provide a significant constraint on the survival time of the metastable neutron star remnant.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 59
Cradle(s) of the Sun
Susanne Pfalzner; Kirsten Vincke
<jats:title>Abstract</jats:title> <jats:p>The Sun likely formed as part of a group of stars. A close stellar flyby by one of the solar siblings is probably responsible for the sharp outer edge in the solar system's mass distribution. The frequency of such close flybys can be used to determine the likely type of birth environment of the solar system. Young stellar groups develop very quickly, expanding significantly within just a few million years. Here we model this strong dynamical development of young stellar groups and determine the resulting close flyby history. We find that solar system equivalents are predominantly produced in areas with stellar densities in the range 5 × 10<jats:sup>4</jats:sup> pc<jats:sup>−3</jats:sup> < <jats:italic>n</jats:italic> <jats:sub>local</jats:sub> < 2 × 10<jats:sup>5</jats:sup> pc<jats:sup>−3</jats:sup>. Remarkably, we find that only two very distinct types of stellar groups can be considered as serious contestants as the cradle of the Sun—high-mass, extended associations (<jats:italic>M</jats:italic> <jats:sub> <jats:italic>c</jats:italic> </jats:sub> > 20,000 <jats:italic>M</jats:italic> <jats:sub>⊙</jats:sub>) and intermediate-mass, compact clusters (<jats:italic>M</jats:italic> <jats:sub> <jats:italic>c</jats:italic> </jats:sub> < 3000 <jats:italic>M</jats:italic> <jats:sub>⊙</jats:sub>). Present-day counterparts would be the association NGC 2244 and the M44 cluster, respectively. In these two types of stellar groups, close flybys take place at a sufficiently high rate, while not being too destructive either. A final decision between these two remaining options will require the incorporation of constraints from cosmochemical studies.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 60
The Spin-period History of Intermediate Polars
Joseph Patterson; Enrique de Miguel; Jonathan Kemp; Shawn Dvorak; Berto Monard; Franz-Josef Hambsch; Tonny Vanmunster; David R. Skillman; David Cejudo; Tut Campbell; George Roberts; Jim Jones; Lewis M. Cook; Greg Bolt; Robert Rea; Joseph Ulowetz; Thomas Krajci; Kenneth Menzies; Simon Lowther; William Goff; William Stein; Matt A. Wood; Gordon Myers; Geoffrey Stone; Helena Uthas; Emir Karamehmetoglu; Jim Seargeant; Jennie McCormick
<jats:title>Abstract</jats:title> <jats:p>We report the detailed history of spin-period changes in five intermediate polars (DQ Herculis, AO Piscium, FO Aquarii, V1223 Sagittarii, and BG Canis Minoris) during the 30–60 yr since their original discovery. Most are slowly spinning up, although there are sometimes years-long episodes of spin-down. This is supportive of the idea that the underlying magnetic white dwarfs are near spin equilibrium. In addition to the ∼40 stars sharing many properties and defined by their strong, pulsed X-ray emission, there are a few rotating much faster (<jats:italic>P</jats:italic> < 80 s), whose membership in the class is still in doubt—and who are overdue for closer study.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 70