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
PLANETARY NEBULAE IN FACE-ON SPIRAL GALAXIES. II. PLANETARY NEBULA SPECTROSCOPY
Kimberly A. Herrmann; Robin Ciardullo
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 894-904
THERMAL ESCAPE FROM SUPER EARTH ATMOSPHERES IN THE HABITABLE ZONES OF M STARS
Feng Tian
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 905-909
A DEDICATEDCHANDRAACIS OBSERVATION OF THE CENTRAL COMPACT OBJECT IN THE CASSIOPEIA A SUPERNOVA REMNANT
G. G. Pavlov; G. J. M. Luna
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 910-921
THE BIMODALITY OF ACCRETION IN T TAURI STARS AND BROWN DWARFS
E. I. Vorobyov; Shantanu Basu
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 922-929
HUBBLE SPACE TELESCOPEIMAGES AND KPNO SPECTROSCOPY OF THE BINARY BLACK HOLE CANDIDATE SDSS J153636.22+044127.0
Tod R. Lauer; Todd A. Boroson
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 930-938
THE GLOBULAR CLUSTER SYSTEM IN M87: A WIDE-FIELD STUDY WITH CFHT/MEGACAM
William E. Harris
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 939-950
ALIGNMENTS OF GROUP GALAXIES WITH NEIGHBORING GROUPS
Yougang Wang; Changbom Park; Xiaohu Yang; Yun-Young Choi; Xuelei Chen
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 951-963
GRMHD PREDICTION OF CORONAL VARIABILITY IN ACCRETING BLACK HOLES
Scott C. Noble; Julian H. Krolik
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 964-975
EVIDENCE FOR MIXED HELICITY IN ERUPTING FILAMENTS
K. Muglach; Y.-M. Wang; B. Kliem
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 976-981
STELLAR AND TOTAL BARYON MASS FRACTIONS IN GROUPS AND CLUSTERS SINCE REDSHIFT 1*
S. Giodini; D. Pierini; A. Finoguenov; G. W. Pratt; H. Boehringer; A. Leauthaud; L. Guzzo; H. Aussel; M. Bolzonella; P. Capak; M. Elvis; G. Hasinger; O. Ilbert; J. S. Kartaltepe; A. M. Koekemoer; S. J. Lilly; R. Massey; H. J. McCracken; J. Rhodes; M. Salvato; D. B. Sanders; N. Z. Scoville; S. Sasaki; V. Smolcic; Y. Taniguchi; D. Thompson
<jats:title>ABSTRACT</jats:title> <jats:p>We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a large sample of groups is considered. To this purpose, 91 candidate X-ray groups/poor clusters at redshift 0.1 ⩽ <jats:italic>z</jats:italic> ⩽ 1 are selected from the COSMOS 2 deg<jats:sup>2</jats:sup> survey, based only on their X-ray luminosity and extent. This sample is complemented by 27 nearby clusters with a robust, analogous determination of the total and stellar mass inside <jats:italic>R</jats:italic> <jats:sub>500</jats:sub>. The total sample of 118 groups and clusters with <jats:italic>z</jats:italic> ⩽ 1 spans a range in <jats:italic>M</jats:italic> <jats:sub>500</jats:sub> of ∼10<jats:sup>13</jats:sup>–10<jats:sup>15</jats:sup> <jats:italic>M</jats:italic> <jats:sub>☉</jats:sub>. We find that the stellar mass fraction associated with galaxies at <jats:italic>R</jats:italic> <jats:sub>500</jats:sub> decreases with increasing total mass as <jats:italic>M</jats:italic> <jats:sup>−0.37 ± 0.04</jats:sup> <jats:sub>500</jats:sub>, independent of redshift. Estimating the total gas mass fraction from a recently derived, high-quality scaling relation, the total baryon mass fraction (<jats:italic>f</jats:italic> <jats:sup>stars+gas</jats:sup> <jats:sub>500</jats:sub> = <jats:italic>f</jats:italic> <jats:sup>stars</jats:sup> <jats:sub>500</jats:sub> + <jats:italic>f</jats:italic> <jats:sup>gas</jats:sup> <jats:sub>500</jats:sub>) is found to increase by ∼25%, when <jats:italic>M</jats:italic> <jats:sub>500</jats:sub> increases from 〈<jats:italic>M</jats:italic>〉 = 5 × 10<jats:sup>13</jats:sup> <jats:italic>M</jats:italic> <jats:sub>☉</jats:sub> to 〈<jats:italic>M</jats:italic>〉 = 7 × 10<jats:sup>14</jats:sup> <jats:italic>M</jats:italic> <jats:sub>☉</jats:sub>. After consideration of a plausible contribution due to intracluster light (11%–22% of the total stellar mass) and gas depletion through the hierarchical assembly process (10% of the gas mass), the estimated values of the total baryon mass fraction are still lower than the latest CMB measure of the same quantity (WMAP5), at a significance level of 3.3σ for groups of 〈<jats:italic>M</jats:italic>〉 = 5 × 10<jats:sup>13</jats:sup> <jats:italic>M</jats:italic> <jats:sub>☉</jats:sub>. The discrepancy decreases toward higher total masses, such that it is 1σ at 〈<jats:italic>M</jats:italic>〉 = 7 × 10<jats:sup>14</jats:sup> <jats:italic>M</jats:italic> <jats:sub>☉</jats:sub>. We discuss this result in terms of nongravitational processes such as feedback and filamentary heating.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 982-993