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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

https://creativecommons.org/licenses/by/4.0/

Cobertura temática

Tabla de contenidos

PARTICLE ACCELERATION BY COLLISIONLESS SHOCKS CONTAINING LARGE-SCALE MAGNETIC-FIELD VARIATIONS

F. Guo; J. R. Jokipii; J. Kota

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 128-133

LIMITING ACCRETION ONTO MASSIVE STARS BY FRAGMENTATION-INDUCED STARVATION

Thomas Peters; Ralf S. Klessen; Mordecai-Mark Mac Low; Robi Banerjee

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 134-145

VORTEX MIGRATION IN PROTOPLANETARY DISKS

Sijme-Jan Paardekooper; Geoffroy Lesur; John C. B. Papaloizou

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 146-158

SPITZERMAPPING OF POLYCYCLIC AROMATIC HYDROCARBON AND H2FEATURES IN PHOTODISSOCIATION REGIONS

B. Fleming; K. France; R. E. Lupu; S. R. McCandliss

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 159-172

AN OPTICAL-INFRARED STUDY OF THE YOUNG MULTIPOLAR PLANETARY NEBULA NGC 6644

Chih Hao Hsia; Sun Kwok; Yong Zhang; Nico Koning; Kevin Volk

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 173-183

THE ORIGIN OF COSMIC RAYS: EXPLOSIONS OF MASSIVE STARS WITH MAGNETIC WINDS AND THEIR SUPERNOVA MECHANISM

Peter L. Biermann; Julia K. Becker; Jens Dreyer; Athina Meli; Eun-Suk Seo; Todor Stanev

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 184-187

ISOLATED WOLF–RAYET STARS AND O SUPERGIANTS IN THE GALACTIC CENTER REGION IDENTIFIED VIA PASCHEN-α EXCESS

J. C. Mauerhan; A. Cotera; H. Dong; M. R. Morris; Q. D. Wang; S. R. Stolovy; C. Lang

<jats:title>ABSTRACT</jats:title> <jats:p>We report the discovery of 19 hot, evolved, massive stars near the Galactic center region (GCR). These objects were selected for spectroscopy owing to their detection as strong sources of Paschen-α (Pα) emission-line excess, following a narrowband imaging survey of the central 0.°65 × 0.°25 (<jats:italic>l</jats:italic>, <jats:italic>b</jats:italic>) around Sgr A* with the <jats:italic>Hubble Space Telescope</jats:italic>. Discoveries include six carbon-type (WC) and five nitrogen-type (WN) Wolf–Rayet stars, six O supergiants, and two B supergiants. Two of the O supergiants have X-ray counterparts having properties consistent with solitary O stars and colliding-wind binaries. The infrared photometry of 17 stars is consistent with the Galactic center distance, but 2 of them are located in the foreground. Several WC stars exhibit a relatively large infrared excess, which is possibly thermal emission from hot dust. Most of the stars appear scattered throughout the GCR, with no relation to the three known massive young clusters; several others lie near the Arches and Quintuplet clusters and may have originated within one of these systems. The results of this work bring the total sample of Wolf–Rayet (WR) stars in the GCR to 88. All sources of strong Pα excess have been identified in the area surveyed with <jats:italic>HST</jats:italic>, which implies that the sample of WN stars in this region is near completion, and is dominated by late (WNL) types. The current WC sample, although probably not complete, is almost exclusively dominated by late (WCL) types. The observed WR subtype distribution in the GCR is a reflection of the intrinsic rarity of early subtypes (WNE and WCE) in the inner Galaxy, an effect that is driven by metallicity.</jats:p>

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 188-199

AN UPDATED CATALOG OF M31 GLOBULAR-LIKE CLUSTERS:UBVRIPHOTOMETRY, AGES, AND MASSES

Zhou Fan; Richard de Grijs; Xu Zhou

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 200-213

DEUTERATED SPECIES IN EXTRAGALACTIC STAR-FORMING REGIONS

E. Bayet; Z. Awad; S. Viti

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 214-224

TIME-RESOLVED SPECTROSCOPY OF THE THREE BRIGHTEST AND HARDEST SHORT GAMMA-RAY BURSTS OBSERVED WITH THEFERMIGAMMA-RAY BURST MONITOR

Sylvain Guiriec; Michael S. Briggs; Valerie Connaugthon; Erin Kara; Frédéric Daigne; Chryssa Kouveliotou; Alexander J. van der Horst; William Paciesas; Charles A. Meegan; P. N. Bhat; Suzanne Foley; Elisabetta Bissaldi; Michael Burgess; Vandiver Chaplin; Roland Diehl; Gerald Fishman; Melissa Gibby; Misty M. Giles; Adam Goldstein; Jochen Greiner; David Gruber; Andreas von Kienlin; Marc Kippen; Sheila McBreen; Robert Preece; Arne Rau; Dave Tierney; Colleen Wilson-Hodge

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. 225-241