Results 21 to 30 of about 46,879 (68)

Investigating seasonal features of electron temperature enhancement regions in the subauroral ionosphere

Solar-Terrestrial Physics, 2019
The electron temperature enhancement is known to occur in the main ionospheric trough during geomagnetic disturbances. In this paper, we study fea-tures of the formation of the electron temperature (Te) enhancement in the subauroral ionosphere by ...
Gololobov A.Yu., Golikov I.A.
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Degenerate Interpretations of O3 Spectral Features in Exoplanet Atmosphere Observations Due to Stellar UV Uncertainties: A 3D Case Study with TRAPPIST-1 e

The Astrophysical Journal, 2023
TRAPPIST-1 e is a potentially habitable terrestrial exoplanet orbiting an ultracool M dwarf star and is a key target for observations with the James Webb Space Telescope.
G. J. Cooke, D. R. Marsh, C. Walsh, A. Youngblood   +3 more
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Blueshifted Fe ii and Balmer Broad Emission lines in a Reddened Quasar

The Astrophysical Journal, 2023
We present detailed analysis of the optical and near-infrared spectrum of the reddened radio-loud quasar F2M J154043.74+492323.9 with strong optical Fe ii emission of ${R}_{4570}\equiv \tfrac{\mathrm{Fe}\,{\rm\small{II}}\lambda \lambda \,4434,4684}{{\rm ...
Yipeng Zhou, Peng Jiang, Xiheng Shi, Lei Hao   +3 more
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Accretion Disk Wind of Hercules X-1 during the Short High State

The Astrophysical Journal, 2023
Hercules X-1 is a nearly edge-on X-ray binary with a warped, precessing accretion disk, which manifests through a 35-day cycle of alternating High and Low flux states.
P. Kosec, E. Kara, A. C. Fabian, C. Pinto, I. Psaradaki, D. Rogantini, R. Staubert, D. J. Walton   +7 more
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Dusty Starbursts Masquerading as Ultra-high Redshift Galaxies in JWST CEERS Observations

The Astrophysical Journal Letters, 2023
Lyman-break galaxy (LBG) candidates at z ≳ 10 are rapidly being identified in James Webb Space Telescope (JWST)/NIRCam observations. Due to the (redshifted) break produced by neutral hydrogen absorption of rest-frame UV photons, these sources are ...
Jorge A. Zavala, Véronique Buat, Caitlin M. Casey, Steven L. Finkelstein, Denis Burgarella, Micaela B. Bagley, Laure Ciesla, Emanuele Daddi, Mark Dickinson, Henry C. Ferguson, Maximilien Franco, E. F. Jiménez-Andrade, Jeyhan S. Kartaltepe, Anton M. Koekemoer, Aurélien Le Bail, E. J. Murphy, Casey Papovich, Sandro Tacchella, Stephen M. Wilkins, Itziar Aretxaga, Peter Behroozi, Jaclyn B. Champagne, Adriano Fontana, Mauro Giavalisco, Andrea Grazian, Norman A. Grogin, Lisa J. Kewley, Dale D. Kocevski, Allison Kirkpatrick, Jennifer M. Lotz, Laura Pentericci, Pablo G. Pérez-González, Nor Pirzkal, Swara Ravindranath, Rachel S. Somerville, Jonathan R. Trump, Guang Yang, L. Y. Aaron Yung, Omar Almaini, Ricardo O. Amorín, Marianna Annunziatella, Pablo Arrabal Haro, Bren E. Backhaus, Guillermo Barro, Eric F. Bell, Rachana Bhatawdekar, Laura Bisigello, Fernando Buitrago, Antonello Calabrò, Marco Castellano, Óscar A. Chávez Ortiz, Katherine Chworowsky, Nikko J. Cleri, Seth H. Cohen, Justin W. Cole, Kevin C. Cooke, M. C. Cooper, Asantha R. Cooray, Luca Costantin, Isabella G. Cox, Darren Croton, Romeel Davé, Alexander de la Vega, Avishai Dekel, David Elbaz, Vicente Estrada-Carpenter, Vital Fernández, Keely D. Finkelstein, Jonathan Freundlich, Seiji Fujimoto, Ángela García-Argumánez, Jonathan P. Gardner, Eric Gawiser, Carlos Gómez-Guijarro, Yuchen Guo, Timothy S. Hamilton, Nimish P. Hathi, Benne W. Holwerda, Michaela Hirschmann, Marc Huertas-Company, Taylor A. Hutchison, Kartheik G. Iyer, Anne E. Jaskot, Saurabh W. Jha, Shardha Jogee, Stéphanie Juneau, Intae Jung, Susan A. Kassin, Peter Kurczynski, Rebecca L. Larson, Gene C. K. Leung, Arianna S. Long, Ray A. Lucas, Benjamin Magnelli, Kameswara Bharadwaj Mantha, Jasleen Matharu, Elizabeth J. McGrath, Daniel H. McIntosh, Aubrey Medrano, Emiliano Merlin, Bahram Mobasher, Alexa M. Morales, Jeffrey A. Newman, David C. Nicholls, Viraj Pandya, Marc Rafelski, Kaila Ronayne, Caitlin Rose, Russell E. Ryan Jr., Paola Santini, Lise-Marie Seillé, Ekta A. Shah, Lu Shen, Raymond C. Simons, Gregory F. Snyder, Elizabeth R. Stanway, Amber N. Straughn, Harry I. Teplitz, Brittany N. Vanderhoof, Jesús Vega-Ferrero, Weichen Wang, Benjamin J. Weiner, Christopher N. A. Willmer, Stijn Wuyts, (The CEERS Team)   +124 more
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The PANORAMIC Survey: Pure Parallel Wide Area Legacy Imaging with JWST/NIRCam

The Astrophysical Journal
We present the PANORAMIC survey, a pure parallel extragalactic imaging program with JWST/NIRCam observed during Cycle 1. The survey obtained ∼530 square arcmin of NIRCam imaging from 1–5 μ m, totaling ∼192 hr of science integration time.
Christina C. Williams, Pascal A. Oesch, Andrea Weibel, Gabriel Brammer, Aidan P. Cloonan, Katherine E. Whitaker, Laia Barrufet, Rachel Bezanson, Rebecca A. A. Bowler, Pratika Dayal, Marijn Franx, Jenny E. Greene, Anne Hutter, Zhiyuan Ji, Ivo Labbé, Sinclaire M. Manning, Michael V. Maseda, Mengyuan Xiao   +17 more
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Unusual Space Weathering on a CE-5 Metal Grain Indicates Deceptive Surface Signatures of M-type Asteroids

The Astrophysical Journal Letters
M-type asteroids are historically thought to be exposed metallic cores of differentiated planets with a composition dominated by pure iron and nickel. However, recent spectral and radar observations reveal an insufficient number of M-type asteroids in ...
Tian Zhang, Hong Tang, Xiongyao Li, Yuanyun Wen, Bing Mo, Wen Yu, Chuanjiao Zhou, Jianzhong Liu   +7 more
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Advancing CO2++ Modeling in the Martian Dayside Ionosphere: Insights from Natural Lifetime Analysis

The Astrophysical Journal
The molecular dication CO _2 ^++ has, as previously reported, been detected in the Martian ionosphere by the Neutral Gas and Ion Mass Spectrometer on the Mars Atmosphere and Volatile Evolution (MAVEN) mission.
Long Cheng, Erik Vigren, Moa Persson, Hao Gu, Jun Cui   +4 more
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Local 2D Simulations of the Ignition of a Helium Shell Detonation on a White Dwarf by an Impacting Stream

The Astrophysical Journal
The double detonation model is one of the prevalent explosion mechanisms of Type Ia supernovae (SNe Ia) wherein an outer helium shell detonation triggers a core detonation in the white dwarf (WD).
Nethra Rajavel, Dean M. Townsley, Ken J. Shen   +2 more
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Evolution of Magnetic Reconnection in an Electron-scale Current Sheet

The Astrophysical Journal
Recently, a new type of magnetic reconnection, electron-only reconnection—where there is no obvious ion flow and heating—has been observed in various plasma environments.
Yundan Guan, Quanming Lu, San Lu, Rongsheng Wang   +3 more
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