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Título de Acceso Abierto
The Astrophysical Journal Letters (ApJL)
Resumen/Descripción – provisto por la editorial en inglés
The Astrophysical Journal Letters is an open access express scientific journal that allows astrophysicists to rapidly publish short notices of significant original research. ApJL articles are timely, high-impact, and broadly understandable.Palabras clave – provistas por la editorial
astronomy; astrophysics
Disponibilidad
| Institución detectada | Período | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No detectada | desde ene. 2010 / hasta dic. 2023 | IOPScience |
Información
Tipo de recurso:
revistas
ISSN impreso
2041-8205
ISSN electrónico
2041-8213
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
Aqueous Alteration on Asteroids Simplifies Soluble Organic Matter Mixtures
Junko Isa
; François-régis Orthous-Daunay; Pierre Beck; Christopher D. K. Herd; Veronique Vuitton; Laurène Flandinet
<jats:title>Abstract</jats:title> <jats:p>Biologically relevant abiotic extraterrestrial soluble organic matter (SOM) has been widely investigated to study the origin of life and the chemical evolution of protoplanetary disks. Synthesis of biologically relevant organics, in particular, seems to require aqueous environments in the early solar system. However, SOM in primitive meteorites includes numerous chemical species besides the biologically relevant ones, and the reaction mechanisms that comprehensively explain the complex nature of SOM are unknown. Besides, the initial reactants, which formed before asteroid accretion, were uncharacterized. We examined the mass distribution of SOM extracted from three distinct Tagish Lake meteorite fragments, which exhibit different degrees of aqueous alteration though they originated from a single asteroid. We report that mass distributions of SOM in the primordial fragments are well fit by the Schulz–Zimm (SZ) model for the molecular weight distribution patterns found in chain-growth polymerization experiments. Also, the distribution patterns diverge further from SZ with increasing degrees of aqueous alteration. These observations imply that the complex nature of the primordial SOM (1) was established before severe alteration on the asteroid, (2) possibly existed before parent-body accretion, and (3) later became simplified on the asteroid. Therefore, aqueous reactions on asteroids are not required conditions for cultivating complex SOM. Furthermore, we found that overall H/C ratios of SOM decrease with increasing aqueous alteration, and the estimate of H loss from the SOM is 10%–30%. Organics seem to be a significant H<jats:sub>2</jats:sub> source that may have caused subsequent chemical reactions in the Tagish Lake meteorite parent body.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L39
Harmonic Maser Emissions from Electrons with Loss-cone Distribution in Solar Active Regions
Hao Ning; Yao Chen; Sulan Ni; Chuanyang Li; Zilong Zhang; Xiangliang Kong; Mehdi Yousefzadeh
<jats:title>Abstract</jats:title> <jats:p>Electron cyclotron maser emission (ECME) is regarded as a plausible source for coherent radio radiations from solar active regions (e.g., solar radio spikes). In this Letter, we present a 2D3V fully kinetic electromagnetic particle-in-cell simulation to investigate the wave excitations and subsequent nonlinear processes induced by the energetic electrons in the loss-cone distribution. The ratio of the plasma frequency to the electron gyrofrequency <jats:italic>ω</jats:italic> <jats:sub>pe</jats:sub>/Ω<jats:sub>ce</jats:sub> is set to 0.25, adequate for solar active region conditions. As a main result, we obtain strong emissions at the second-harmonic X mode (X2). While the fundamental X mode (X1) and the Z mode are amplified directly via the electron cyclotron maser instability, the X2 emissions can be produced by nonlinear coalescence between two Z modes and between Z and X1 modes. This represents a novel generation mechanism for the harmonic emissions in plasmas with a low value of <jats:italic>ω</jats:italic> <jats:sub>pe</jats:sub>/Ω<jats:sub>ce</jats:sub>, which may resolve the escaping difficulty of explaining solar radio emissions with the ECME mechanism.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L40
Investigating Protoplanetary Disk Cooling through Kinematics: Analytical GI Wiggle
Cristiano Longarini; Giuseppe Lodato; Claudia Toci; Benedetta Veronesi; Cassandra Hall; Ruobing Dong; Jason Patrick Terry
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L41
Black Hole Mergers of AGN Origin in LIGO–Virgo’s O1–O3a Observing Periods
V. Gayathri; Y. Yang; H. Tagawa; Z. Haiman; I. Bartos
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L42
Observations of Forbush Decreases of Cosmic-Ray Electrons and Positrons with the Dark Matter Particle Explorer
Francesca Alemanno; Qi An; Philipp Azzarello; Felicia Carla Tiziana Barbato; Paolo Bernardini; XiaoJun Bi; MingSheng Cai; Elisabetta Casilli; Enrico Catanzani; Jin Chang; DengYi Chen; JunLing Chen; ZhanFang Chen; MingYang Cui; TianShu Cui; YuXing Cui; HaoTing Dai; Antonio De Benedittis; Ivan De Mitri; Francesco de Palma; Maksym Deliyergiyev; Margherita Di Santo; Qi Ding; TieKuang Dong; ZhenXing Dong; Giacinto Donvito; David Droz; JingLai Duan; KaiKai Duan; Domenico D’Urso; RuiRui Fan; YiZhong Fan; Fang Fang; Kun Fang; ChangQing Feng; Lei Feng; Piergiorgio Fusco; Min Gao; Fabio Gargano; Ke Gong; YiZhong Gong; DongYa Guo; JianHua Guo; ShuangXue Han; YiMing Hu; GuangShun Huang; XiaoYuan Huang; YongYi Huang; Maria Ionica; Wei Jiang; Jie Kong; Andrii Kotenko; Dimitrios Kyratzis; S. Li; ShiJun Lei; WenHao Li; WeiLiang Li; Xiang Li; XianQiang Li; YaoMing Liang; ChengMing Liu; Hao Liu; Jie Liu; ShuBin Liu; Yang Liu; Francesco Loparco; ChuanNing Luo; Miao Ma; PengXiong Ma; Tao Ma; XiaoYong Ma; Giovanni Marsella; Mario Nicola Mazziotta; Dan Mo; XiaoYang Niu; Xu Pan; Andrea Parenti; WenXi Peng; XiaoYan Peng; Chiara Perrina; Rui Qiao; JiaNing Rao; Arshia Ruina; MariaMunoz Salinas; Zhi Shangguan; WeiHua Shen; ZhaoQiang Shen; ZhongTao Shen; Leandro Silveri; JingXing Song; Mikhail Stolpovskiy; Hong Su; Meng Su; HaoRan Sun; ZhiYu Sun; Antonio Surdo; XueJian Teng; Andrii Tykhonov; JinZhou Wang; LianGuo Wang; Shen Wang; ShuXin Wang; XiaoLian Wang; Ying Wang; YanFang Wang; YuanZhu Wang; DaMing Wei; JiaJu Wei; YiFeng Wei; Di Wu; Jian Wu; LiBo Wu; Sha Sha Wu; Xin Wu; ZiQing Xia; EnHeng Xu; HaiTao Xu; ZhiHui Xu; ZunLei Xu; GuoFeng Xue; ZiZong Xu; HaiBo Yang; Peng Yang; YaQing Yang; Hui Jun Yao; YuHong Yu; GuanWen Yuan; Qiang Yuan; Chuan Yue; JingJing Zang; ShengXia Zhang; WenZhang Zhang; Yan Zhang; Yi Zhang; YongJie Zhang; YunLong Zhang; YaPeng Zhang; YongQiang Zhang; ZhiYong Zhang; Zhe Zhang; Cong Zhao; HongYun Zhao; XunFeng Zhao; ChangYi Zhou; Yan Zhu; Wei Chen; Li Feng; Xi Luo; ChengRui Zhu
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L43
Eridanus IV: an Ultra-faint Dwarf Galaxy Candidate Discovered in the DECam Local Volume Exploration Survey
W. Cerny; A. B. Pace; A. Drlica-Wagner; S. E. Koposov; A. K. Vivas; S. Mau; A. H. Riley; C. R. Bom; J. L. Carlin; Y. Choi; D. Erkal; P. S. Ferguson; D. J. James; T. S. Li; D. Martínez-Delgado; C. E. Martínez-Vázquez; R. R. Munoz; B. Mutlu-Pakdil; K. A. G. Olsen; A. Pieres; J. D. Sakowska; D. J. Sand; J. D. Simon; A. Smercina; G. S. Stringfellow; E. J. Tollerud; M. Adamów; D. Hernandez-Lang; N. Kuropatkin; L. Santana-Silva; D. L. Tucker; A. Zenteno
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L44
Search for Multi-flare Neutrino Emissions in 10 yr of IceCube Data from a Catalog of Sources
R. Abbasi; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; M. Ahrens; C. Alispach; A. A. Alves; N. M. Amin; R. An; K. Andeen; T. Anderson; G. Anton; C. Argüelles; Y. Ashida; S. Axani; X. Bai; A. Balagopal V.; A. Barbano; S. W. Barwick; B. Bastian; V. Basu; S. Baur; R. Bay; J. J. Beatty; K.-H. Becker; J. Becker Tjus; C. Bellenghi; S. BenZvi; D. Berley; E. Bernardini; D. Z. Besson; G. Binder; D. Bindig; E. Blaufuss; S. Blot; M. Boddenberg; F. Bontempo; J. Borowka; S. Böser; O. Botner; J. Böttcher; E. Bourbeau; F. Bradascio; J. Braun; S. Bron; J. Brostean-Kaiser; S. Browne; A. Burgman; R. T. Burley; R. S. Busse; M. A. Campana; E. G. Carnie-Bronca; C. Chen; D. Chirkin; K. Choi; B. A. Clark; K. Clark; L. Classen; A. Coleman; G. H. Collin; J. M. Conrad; P. Coppin; P. Correa; D. F. Cowen; R. Cross; C. Dappen; P. Dave; C. De Clercq; J. J. DeLaunay; H. Dembinski; K. Deoskar; S. De Ridder; A. Desai; P. Desiati; K. D. de Vries; G. de Wasseige; M. de With; T. DeYoung; S. Dharani; A. Diaz; J. C. Díaz-Vélez; M. Dittmer; H. Dujmovic; M. Dunkman; M. A. DuVernois; E. Dvorak; T. Ehrhardt; P. Eller; R. Engel; H. Erpenbeck; J. Evans; P. A. Evenson; K. L. Fan; A. R. Fazely; S. Fiedlschuster; A. T. Fienberg; K. Filimonov; C. Finley; L. Fischer; D. Fox; A. Franckowiak; E. Friedman; A. Fritz; P. Fürst; T. K. Gaisser; J. Gallagher; E. Ganster; A. Garcia; S. Garrappa; L. Gerhardt; A. Ghadimi; C. Glaser; T. Glauch; T. Glüsenkamp; A. Goldschmidt; J. G. Gonzalez; S. Goswami; D. Grant; T. Grégoire; S. Griswold; M. Gündüz; C. Günther; C. Haack; A. Hallgren; R. Halliday; L. Halve; F. Halzen; M. Ha Minh; K. Hanson; J. Hardin; A. A. Harnisch; A. Haungs; S. Hauser; D. Hebecker; K. Helbing; F. Henningsen; E. C. Hettinger; S. Hickford; J. Hignight; C. Hill; G. C. Hill; K. D. Hoffman; R. Hoffmann; T. Hoinka; B. Hokanson-Fasig; K. Hoshina; F. Huang; M. Huber; T. Huber; K. Hultqvist; M. Hünnefeld; R. Hussain; S. In; N. Iovine; A. Ishihara; M. Jansson; G. S. Japaridze; M. Jeong; B. J. P. Jones; D. Kang; W. Kang; X. Kang; A. Kappes; D. Kappesser; T. Karg; M. Karl; A. Karle; U. Katz; M. Kauer; M. Kellermann; J. L. Kelley; A. Kheirandish; K. Kin; T. Kintscher; J. Kiryluk; S. R. Klein; R. Koirala; H. Kolanoski; T. Kontrimas; L. Köpke; C. Kopper; S. Kopper; D. J. Koskinen; P. Koundal; M. Kovacevich; M. Kowalski; T. Kozynets; E. Kun; N. Kurahashi; N. Lad; C. Lagunas Gualda; J. L. Lanfranchi; M. J. Larson; F. Lauber; J. P. Lazar; J. W. Lee; K. Leonard; A. Leszczyńska; Y. Li; M. Lincetto; Q. R. Liu; M. Liubarska; E. Lohfink; C. J. Lozano Mariscal; L. Lu; F. Lucarelli; A. Ludwig; W. Luszczak; Y. Lyu; W. Y. Ma; J. Madsen; K. B. M. Mahn; Y. Makino; S. Mancina; I. C. Mariş; R. Maruyama; K. Mase; T. McElroy; F. McNally; J. V. Mead; K. Meagher; A. Medina; M. Meier; S. Meighen-Berger; J. Micallef; D. Mockler; T. Montaruli; R. W. Moore; R. Morse; M. Moulai; R. Naab; R. Nagai; U. Naumann; J. Necker; L. V. Nguyễn; H. Niederhausen; M. U. Nisa; S. C. Nowicki; D. R. Nygren; A. Obertacke Pollmann; M. Oehler; B. Oeyen; A. Olivas; E. O’Sullivan; H. Pandya; D. V. Pankova; N. Park; G. K. Parker; E. N. Paudel; L. Paul; C. Pérez de los Heros; L. Peters; J. Peterson; S. Philippen; D. Pieloth; S. Pieper; M. Pittermann; A. Pizzuto; M. Plum; Y. Popovych; A. Porcelli; M. Prado Rodriguez; P. B. Price; B. Pries; G. T. Przybylski; C. Raab; A. Raissi; M. Rameez; K. Rawlins; I. C. Rea; A. Rehman; P. Reichherzer; R. Reimann; G. Renzi; E. Resconi; S. Reusch; W. Rhode; M. Richman; B. Riedel; E. J. Roberts; S. Robertson; G. Roellinghoff; M. Rongen; C. Rott; T. Ruhe; D. Ryckbosch; D. Rysewyk Cantu; I. Safa; J. Saffer; S. E. Sanchez Herrera; A. Sandrock; J. Sandroos; M. Santander; S. Sarkar; S. Sarkar; K. Satalecka; M. Scharf; M. Schaufel; H. Schieler; S. Schindler; P. Schlunder; T. Schmidt; A. Schneider; J. Schneider; F. G. Schröder; L. Schumacher; G. Schwefer; S. Sclafani; D. Seckel; S. Seunarine; A. Sharma; S. Shefali; M. Silva; B. Skrzypek; B. Smithers; R. Snihur; J. Soedingrekso; D. Soldin; C. Spannfellner; G. M. Spiczak; C. Spiering; J. Stachurska; M. Stamatikos; T. Stanev; R. Stein; J. Stettner; A. Steuer; T. Stezelberger; T. Stürwald; T. Stuttard; G. W. Sullivan; I. Taboada; F. Tenholt; S. Ter-Antonyan; S. Tilav; F. Tischbein; K. Tollefson; L. Tomankova; C. Tönnis; S. Toscano; D. Tosi; A. Trettin; M. Tselengidou; C. F. Tung; A. Turcati; R. Turcotte; C. F. Turley; J. P. Twagirayezu; B. Ty; M. A. Unland Elorrieta; N. Valtonen-Mattila; J. Vandenbroucke; N. van Eijndhoven; D. Vannerom; J. van Santen; S. Verpoest; M. Vraeghe; C. Walck; T. B. Watson; C. Weaver; P. Weigel; A. Weindl; M. J. Weiss; J. Weldert; C. Wendt; J. Werthebach; M. Weyrauch; N. Whitehorn; C. H. Wiebusch; D. R. Williams; M. Wolf; K. Woschnagg; G. Wrede; J. Wulff; X. W. Xu; Y. Xu; J. P. Yanez; S. Yoshida; S. Yu; T. Yuan; Z. Zhang
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L45
Emission-line Wings Driven by Lyman Continuum in the Green Pea Analog Mrk 71
Lena Komarova; M. S. Oey; Mark R. Krumholz; Sergiy Silich; Nimisha Kumari; Bethan L. James
<jats:title>Abstract</jats:title> <jats:p>We propose that the origin of faint, broad emission-line wings in the Green Pea (GP) analog Mrk 71 is a clumpy, LyC, and/or Ly<jats:italic>α</jats:italic>-driven superwind. Our spatially resolved analysis of Gemini-N/GMOS-IFU observations shows that these line wings with terminal velocity >3000 km s<jats:sup>−1</jats:sup> originate from the super star cluster Knot A, and propagate to large radii. The object’s observed ionization parameter and stellar surface density are close to their theoretical maxima, and radiation pressure dominates over gas pressure. Together with a lack of evidence for supernova feedback, these imply a radiation-dominated environment. We demonstrate that a clumpy, radiation-driven superwind from Knot A is a viable model for generating the extreme velocities, and in particular, that Lyman continuum and/or Ly<jats:italic>α</jats:italic> opacity must be responsible. We find that the Mrk 71 broad wings are best fitted with power laws, as are those of a representative extreme GP and a luminous blue variable star, albeit with different slopes. This suggests that they may share a common wind-acceleration mechanism. We propose that high-velocity, power-law wings may be a distinctive signature of radiation feedback, and of radiatively driven winds, in particular.</jats:p>
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L46
Investigating Global Convective Dynamos with Mean-field Models: Full Spectrum of Turbulent Effects Required
Jörn Warnecke; Matthias Rheinhardt; Mariangela Viviani; Frederick A. Gent; Simo Tuomisto; Maarit J. Käpylä
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L13
Lags in Desorption of Lunar Volatiles
M. Sarantos; S. Tsavachidis
Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.
Pp. L14