Catálogo de publicaciones - revistas
Título de Acceso Abierto
The Astrophysical Journal Supplement (ApJS)
Resumen/Descripción – provisto por la editorial en inglés
The Astrophysical Journal Supplement is an open access journal publishing significant articles containing extensive data or calculations. ApJS also supports Special Issues, collections of thematically related papers published simultaneously in a single volume.Palabras clave – provistas por la editorial
astronomy; astrophysics
Disponibilidad
| Institución detectada | Período | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No detectada | desde dic. 1996 / hasta dic. 2023 | IOPScience |
Información
Tipo de recurso:
revistas
ISSN impreso
0067-0049
ISSN electrónico
1538-4365
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
Molecules with ALMA at Planet-forming Scales (MAPS). V. CO Gas Distributions
Ke Zhang
; Alice S. Booth; Charles J. Law; Arthur D. Bosman; Kamber R. Schwarz; Edwin A. Bergin; Karin I. Öberg; Sean M. Andrews; Viviana V. Guzmán; Catherine Walsh; Chunhua Qi; Merel L. R. van ’t Hoff; Feng Long; David J. Wilner; Jane Huang; Ian Czekala; John D. Ilee; Gianni Cataldi; Jennifer B. Bergner; Yuri Aikawa; Richard Teague; Jaehan Bae; Ryan A. Loomis; Jenny K. Calahan; Felipe Alarcón; François Ménard; Romane Le Gal; Anibal Sierra; Yoshihide Yamato; Hideko Nomura; Takashi Tsukagoshi; Laura M. Pérez; Leon Trapman; Yao Liu; Kenji Furuya
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 5
Molecules with ALMA at Planet-forming Scales (MAPS). VI. Distribution of the Small Organics HCN, C2H, and H2CO
Viviana V. Guzmán; Jennifer B. Bergner; Charles J. Law; Karin I. Öberg; Catherine Walsh; Gianni Cataldi; Yuri Aikawa; Edwin A. Bergin; Ian Czekala; Jane Huang; Sean M. Andrews; Ryan A. Loomis; Ke Zhang; Romane Le Gal; Felipe Alarcón; John D. Ilee; Richard Teague; L. Ilsedore Cleeves; David J. Wilner; Feng Long; Kamber R. Schwarz; Arthur D. Bosman; Laura M. Pérez; François Ménard; Yao Liu
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 6
Molecules with ALMA at Planet-forming Scales (MAPS). VII. Substellar O/H and C/H and Superstellar C/O in Planet-feeding Gas
Arthur D. Bosman; Felipe Alarcón; Edwin A. Bergin; Ke Zhang; Merel L. R. van’t Hoff; Karin I. Öberg; Viviana V. Guzmán; Catherine Walsh; Yuri Aikawa; Sean M. Andrews; Jennifer B. Bergner; Alice S. Booth; Gianni Cataldi; L. Ilsedore Cleeves; Ian Czekala; Kenji Furuya; Jane Huang; John D. Ilee; Charles J. Law; Romane Le Gal; Yao Liu; Feng Long; Ryan A. Loomis; François Ménard; Hideko Nomura; Chunhua Qi; Kamber R. Schwarz; Richard Teague; Takashi Tsukagoshi; Yoshihide Yamato; David J. Wilner
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 7
Molecules with ALMA at Planet-forming Scales (MAPS). VIII. CO Gap in AS 209—Gas Depletion or Chemical Processing?
Felipe Alarcón; Arthur D. Bosman; Edwin A. Bergin; Ke Zhang; Richard Teague; Jaehan Bae; Yuri Aikawa; Sean M. Andrews; Alice S. Booth; Jenny K. Calahan; Gianni Cataldi; Ian Czekala; Jane Huang; John D. Ilee; Charles J. Law; Romane Le Gal; Yao Liu; Feng Long; Ryan A. Loomis; François Ménard; Karin I. Öberg; Kamber R. Schwarz; Merel L. R. van ’t Hoff; Catherine Walsh; David J. Wilner
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 8
Molecules with ALMA at Planet-forming Scales (MAPS). IX. Distribution and Properties of the Large Organic Molecules HC3N, CH3CN, and c-C3H2
John D. Ilee; Catherine Walsh; Alice S. Booth; Yuri Aikawa; Sean M. Andrews; Jaehan Bae; Edwin A. Bergin; Jennifer B. Bergner; Arthur D. Bosman; Gianni Cataldi; L. Ilsedore Cleeves; Ian Czekala; Viviana V. Guzmán; Jane Huang; Charles J. Law; Romane Le Gal; Ryan A. Loomis; François Ménard; Hideko Nomura; Karin I. Öberg; Chunhua Qi; Kamber R. Schwarz; Richard Teague; Takashi Tsukagoshi; David J. Wilner; Yoshihide Yamato; Ke Zhang
<jats:title>Abstract</jats:title> <jats:p>The precursors to larger, biologically relevant molecules are detected throughout interstellar space, but determining the presence and properties of these molecules during planet formation requires observations of protoplanetary disks at high angular resolution and sensitivity. Here, we present 0.″3 observations of HC<jats:sub>3</jats:sub>N, CH<jats:sub>3</jats:sub>CN, and <jats:italic>c</jats:italic>-C<jats:sub>3</jats:sub>H<jats:sub>2</jats:sub> in five protoplanetary disks observed as part of the Molecules with ALMA at Planet-forming Scales (MAPS) Large Program. We robustly detect all molecules in four of the disks (GM Aur, AS 209, HD 163296, and MWC 480) with tentative detections of <jats:italic>c</jats:italic>-C<jats:sub>3</jats:sub>H<jats:sub>2</jats:sub> and CH<jats:sub>3</jats:sub>CN in IM Lup. We observe a range of morphologies—central peaks, single or double rings—with no clear correlation in morphology between molecule or disk. Emission is generally compact and on scales comparable with the millimeter dust continuum. We perform both disk-integrated and radially resolved rotational diagram analysis to derive column densities and rotational temperatures. The latter reveals 5–10 times more column density in the inner 50–100 au of the disks when compared with the disk-integrated analysis. We demonstrate that CH<jats:sub>3</jats:sub>CN originates from lower relative heights in the disks when compared with HC<jats:sub>3</jats:sub>N, in some cases directly tracing the disk midplane. Finally, we find good agreement between the ratio of small to large nitriles in the outer disks and comets. Our results indicate that the protoplanetary disks studied here are host to significant reservoirs of large organic molecules, and that this planet- and comet-building material can be chemically similar to that in our own solar system. This paper is part of the MAPS special issue of the Astrophysical Journal Supplement.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 9
Molecules with ALMA at Planet-forming Scales (MAPS). X. Studying Deuteration at High Angular Resolution toward Protoplanetary Disks
Gianni Cataldi; Yoshihide Yamato; Yuri Aikawa; Jennifer B. Bergner; Kenji Furuya; Viviana V. Guzmán; Jane Huang; Ryan A. Loomis; Chunhua Qi; Sean M. Andrews; Edwin A. Bergin; Alice S. Booth; Arthur D. Bosman; L. Ilsedore Cleeves; Ian Czekala; John D. Ilee; Charles J. Law; Romane Le Gal; Yao Liu; Feng Long; François Ménard; Hideko Nomura; Karin I. Öberg; Kamber R. Schwarz; Richard Teague; Takashi Tsukagoshi; Catherine Walsh; David J. Wilner; Ke Zhang
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 10
Molecules with ALMA at Planet-forming Scales (MAPS). XI. CN and HCN as Tracers of Photochemistry in Disks
Jennifer B. Bergner; Karin I. Öberg; Viviana V. Guzmán; Charles J. Law; Ryan A. Loomis; Gianni Cataldi; Arthur D. Bosman; Yuri Aikawa; Sean M. Andrews; Edwin A. Bergin; Alice S. Booth; L. Ilsedore Cleeves; Ian Czekala; Jane Huang; John D. Ilee; Romane Le Gal; Feng Long; Hideko Nomura; François Ménard; Chunhua Qi; Kamber R. Schwarz; Richard Teague; Takashi Tsukagoshi; Catherine Walsh; David J. Wilner; Yoshihide Yamato
<jats:title>Abstract</jats:title> <jats:p>UV photochemistry in the surface layers of protoplanetary disks dramatically alters their composition relative to previous stages of star formation. The abundance ratio CN/HCN has long been proposed to trace the UV field in various astrophysical objects; however, to date the relationship between CN, HCN, and the UV field in disks remains ambiguous. As part of the ALMA Large Program MAPS (Molecules with ALMA at Planet-forming Scales), we present observations of CN <jats:italic>N</jats:italic> = 1–0 transitions at 0.″3 resolution toward five disk systems. All disks show bright CN emission within ∼50–150 au, along with a diffuse emission shelf extending up to 600 au. In all sources we find that the CN/HCN column density ratio increases with disk radius from about unity to 100, likely tracing increased UV penetration that enhances selective HCN photodissociation in the outer disk. Additionally, multiple millimeter dust gaps and rings coincide with peaks and troughs, respectively, in the CN/HCN ratio, implying that some millimeter substructures are accompanied by changes to the UV penetration in more elevated disk layers. That the CN/HCN ratio is generally high (>1) points to a robust photochemistry shaping disk chemical compositions and also means that CN is the dominant carrier of the prebiotically interesting nitrile group at most disk radii. We also find that the local column densities of CN and HCN are positively correlated despite emitting from vertically stratified disk regions, indicating that different disk layers are chemically linked. This paper is part of the MAPS special issue of the Astrophysical Journal Supplement.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 11
Molecules with ALMA at Planet-forming Scales (MAPS). XII. Inferring the C/O and S/H Ratios in Protoplanetary Disks with Sulfur Molecules
Romane Le Gal; Karin I. Öberg; Richard Teague; Ryan A. Loomis; Charles J. Law; Catherine Walsh; Edwin A. Bergin; François Ménard; David J. Wilner; Sean M. Andrews; Yuri Aikawa; Alice S. Booth; Gianni Cataldi; Jennifer B. Bergner; Arthur D. Bosman; L. Ilse Cleeves; Ian Czekala; Kenji Furuya; Viviana V. Guzmán; Jane Huang; John D. Ilee; Hideko Nomura; Chunhua Qi; Kamber R. Schwarz; Takashi Tsukagoshi; Yoshihide Yamato; Ke Zhang
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 12
Molecules with ALMA at Planet-forming Scales (MAPS). XIII. HCO+ and Disk Ionization Structure
Yuri Aikawa; Gianni Cataldi; Yoshihide Yamato; Ke Zhang; Alice S. Booth; Kenji Furuya; Sean M. Andrews; Jaehan Bae; Edwin A. Bergin; Jennifer B. Bergner; Arthur D. Bosman; L. Ilsedore Cleeves; Ian Czekala; Viviana V. Guzmán; Jane Huang; John D. Ilee; Charles J. Law; Romane Le Gal; Ryan A. Loomis; François Ménard; Hideko Nomura; Karin I. Öberg; Chunhua Qi; Kamber R. Schwarz; Richard Teague; Takashi Tsukagoshi; Catherine Walsh; David J. Wilner
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 13
Molecules with ALMA at Planet-forming Scales (MAPS). XIV. Revealing Disk Substructures in Multiwavelength Continuum Emission
Anibal Sierra; Laura M. Pérez; Ke Zhang; Charles J. Law; Viviana V. Guzmán; Chunhua Qi; Arthur D. Bosman; Karin I. Öberg; Sean M. Andrews; Feng Long; Richard Teague; Alice S. Booth; Catherine Walsh; David J. Wilner; François Ménard; Gianni Cataldi; Ian Czekala; Jaehan Bae; Jane Huang; Jennifer B. Bergner; John D. Ilee; Myriam Benisty; Romane Le Gal; Ryan A. Loomis; Takashi Tsukagoshi; Yao Liu; Yoshihide Yamato; Yuri Aikawa
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. 14