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
Magnetohydrodynamic Accretion–Ejection: Jets Launched by a Nonisotropic Accretion-disk Dynamo. II. A Dynamo Tensor Defined by the Disk Coriolis Number
Giancarlo Mattia
; Christian Fendt
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 60
First Results from SMAUG: Characterization of Multiphase Galactic Outflows from a Suite of Local Star-forming Galactic Disk Simulations
Chang-Goo Kim; Eve C. Ostriker; Rachel S. Somerville; Greg L. Bryan; Drummond B. Fielding; John C. Forbes; Christopher C. Hayward; Lars Hernquist; Viraj Pandya
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 61
A Machine Learning Model to Infer Planet Masses from Gaps Observed in Protoplanetary Disks
Sayantan Auddy; Min-Kai Lin
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 62
Evidence for Dense Gas Heated by the Explosion in Orion KL
Dalei Li; Xindi Tang; Christian Henkel; Karl M. Menten; Friedrich Wyrowski; Yan Gong; Gang Wu; Yuxin He; Jarken Esimbek; Jianjun Zhou
<jats:title>Abstract</jats:title> <jats:p>We mapped the kinetic temperature structure of Orion KL in a ∼20″ (∼8000 au) sized region with para-H<jats:sub>2</jats:sub>CS 7<jats:sub>07</jats:sub> − 6<jats:sub>06</jats:sub>, 7<jats:sub>26</jats:sub> − 6<jats:sub>25</jats:sub>, and 7<jats:sub>25</jats:sub> − 6<jats:sub>24</jats:sub> making use of Atacama Large Millimeter/submillimeter Array Band 6 Science Verification data. The kinetic temperatures obtained with a resolution of 1.″65 × 1.″14 (∼550 au) are deduced by modeling the measured averaged velocity-integrated intensity ratios of para-H<jats:sub>2</jats:sub>CS 7<jats:sub>26</jats:sub> − 6<jats:sub>25</jats:sub>/7<jats:sub>07</jats:sub> − 6<jats:sub>06</jats:sub> and 7<jats:sub>25</jats:sub> − 6<jats:sub>24</jats:sub>/7<jats:sub>07</jats:sub> − 6<jats:sub>06</jats:sub> with a RADEX non-LTE model. The kinetic temperatures of the dense gas, derived from the para-H<jats:sub>2</jats:sub>CS line ratios at a spatial density of 10<jats:sup>7</jats:sup> cm<jats:sup>−3</jats:sup>, are high, ranging from 43 to >500 K with an unweighted average of ∼170 K. There is no evidence for internal sources playing an important role in the heating of the various structures identified in previous work, namely the elongated ridge, the northwestern clump, and the eastern region of the compact ridge, while the high temperatures in the western region of the compact ridge may be dominated by internal massive star formation. Significant gradients of kinetic temperature along molecular filaments traced by H<jats:sub>2</jats:sub>CS indicate that the dense gas is heated by the shocks induced by the enigmatic explosive event which occurred several hundred years ago and greatly affected the energetics of the Orion KL region. Thus, with the notable exception of the western region of the compact ridge, the high temperatures of the dense gas in Orion KL are probably caused by shocks from the explosive event, leading to a dominant component of externally heated dense gas.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 62
The Demagnetization of the Venusian Ionosphere under Nearly Flow-aligned Interplanetary Magnetic Fields
Qing Chang; Xiaojun Xu; Qi Xu; Jing Wang; Jiaying Xu; Yudong Ye; Tielong Zhang
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 63
Quasar Main Sequence in the UV Plane
Marzena Śniegowska; Szymon Kozłowski; Bożena Czerny; Swayamtrupta Panda; Krzysztof Hryniewicz
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 64
The Effects of Oscillations and Collisions of Emerging Bipolar Regions on the Triggering of Solar Flares
C. Boocock; K. Kusano; D. Tsiklauri
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 65
Termination Shock as a Source of Unusual Solar Radio Bursts
Valery Fomichev; Gennady Chernov
<jats:title>Abstract</jats:title> <jats:p>Using centimeter-wave and decimeter-wave solar radio spectral observations of the flares of 2003 November 18 and 2004 September 12, we have discussed two type-II-like bursts at the meter waves. The radio bursts show that the ordinary frequency drift from high to low frequencies slows down and stops, and a frequency drift from low to high frequencies appears. An analysis of all data on the corresponding flares provides evidence of the formation of quasi-standing fast-mode shocks (termination shocks, TSs). TSs are able to generate energetic electrons, responsible for the appearance of new sources of hard X-ray radiation and generation of fast radio bursts (spikes), fibers, and zebra structures. The sources of the radio emission bands with the unusual frequency drift are situated above the top of the post-flare loops (lower TS) or are connected with the erupting prominence or coronal mass ejection (upper TS). Estimations of the critical Mach numbers for the ordinary plasma parameters in the solar flares give the values <jats:italic>M</jats:italic> <jats:sub>cr</jats:sub> = 1.1–1.3 easily realized in the flare events. The conditions necessary for the generation of unusual radio bursts are likely to occur in the helmet-shaped magnetic structures in the solar corona.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 65
Stabilization of Magnetic Reconnection in the Relativistic Current Sheet
Masahiro Hoshino
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 66
Prospective Annual Detection Rate of High-energy Gamma-Ray Bursts with LHAASO-WCDA
Ming-Ming Kang; Bing-Qiang Qiao; Yu-Hua Yao; Yi-Qing Guo; Hong-Bo Hu; Zhi-Guo Yao
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 67