Results 31 to 40 of about 4,545 (163)

Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 during JWST Transit Spectroscopy Observations

The Astrophysical Journal, 2023
We present the first analysis of JWST near-infrared spectroscopy of stellar flares from TRAPPIST-1 during transits of rocky exoplanets. Four flares were observed from 0.6–2.8 μ m with the Near Infrared Imager and Slitless Spectrograph and 0.6–3.5 μ m ...
Ward S. Howard, Adam F. Kowalski, Laura Flagg, Meredith A. MacGregor, Olivia Lim, Michael Radica, Caroline Piaulet, Pierre-Alexis Roy, David Lafrenière, Björn Benneke, Alexander Brown, Néstor Espinoza, René Doyon, Louis-Philippe Coulombe, Doug Johnstone, Nicolas B. Cowan, Ray Jayawardhana, Jake D. Turner, Lisa Dang   +18 more
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Vertical and Temporal H3+ Structure at the Auroral Footprint of Io

The Planetary Science Journal
We report the first observation of the vertical and temporal structure of the H _3 ^+ emission at the auroral footprint of Io, as observed by Juno/JIRAM.
A. Mura, A. Moirano, V. Hue, C. Castagnoli, A. Migliorini, F. Altieri, A. Adriani, A. Cicchetti, C. Plainaki, G. Piccioni, R. Noschese, G. Sindoni, R. Sordini   +12 more
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NEOWISE Data Processing and Color Corrections for Near-Earth Asteroid Observations

The Planetary Science Journal
The Wide-field Infrared Survey Explorer and NEOWISE missions are a key source of thermal data for near-Earth asteroids (NEAs). These missions, which utilized a space-based platform in Earth orbit, produced thermal images across four different wavelength ...
Samuel A. Myers, Ellen S. Howell, Yanga R. Fernández, Sean E. Marshall, Christopher Magri, Ronald J. Vervack Jr., Mary L. Hinkle   +6 more
doaj   +1 more source

Design and development of an adaptive optics system in visible and near-infrared for Inter-University Centre for Astronomy and Astrophysics 2-meter telescope [PDF]

Journal of Astronomical Telescopes, Instruments, and Systems, 2019
Robo-AO is the first robotic autonomous laser-guided adaptive optics (AO) system operating in the sky. It is a very economical AO system especially suitable for observations with 1- to 3-m class telescopes. A second Robo-AO system, which works both in the visible and near-infrared wavelengths, has been developed to improve the image quality of the 2-m ...
Jyotirmay Paul, Hillol K. Das, A. N. Ramaprakash, Mahesh Burse, Pravin Chordia, Kalpesh Chillal, Gaurav Datir, Bhushan Joshi, Pravin Khodade, Abhay Kohok, Vilas Mestry, Sujit Punnadi, Chaitanya Rajarshi, Chikku Shekhar   +13 more
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Development of TiN-Based Suspended Meander Kinetic Inductance Detectors (KIDs) for Visible and Near-Infrared Astronomy Applications

, 2023
Abstract We propose high-Q factors sub-stoichiometric TiN-based Lumped Element MKIDs on sapphire with vacuum gap suspended meander. The aim is to improve detector response by trapping phonons within the meander to increase the number of Cooper pairs breaking into quasiparticles.
Maria Appavou, Lucas Ribeiro, Paul Nicaise, Jie Hu, Jean-Marc Martin, Josiane Firminy, Christine Chaumont, Piercarlo Bonifacio, Faouzi Boussaha   +8 more
openaire   +1 more source

Early and Extensive Ultraviolet through Near Infrared Observations of the Intermediate-luminosity Type Iax Supernovae 2024pxl

The Astrophysical Journal
We present ultraviolet (UV) through near-infrared (NIR) photometric and spectroscopic observations of the nearby SN 2024pxl, the third Type Ia supernova (SN Ia) in NGC 6384.
W. B. Hoogendam, C. Ashall, D. O. Jones, B. J. Shappee, M. A. Tucker, M. E. Huber, K. Auchettl, D. D. Desai, A. Do, J. T. Hinkle, M. Y. Kong, S. Romagnoli, J. Shi, A. Syncatto, C. D. Kilpatrick   +14 more
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NIRC2 Interferometric Imaging of the HD 34282 Transition Disk’s Small Grain Structure

The Astrophysical Journal
The HD 34282 transition disk is a favorable location for protoplanet searches given its complex substructures that may be driven by planet formation.
Christina L. Vides, Steph Sallum, Josh Eisner, Andy Skemer, Ruth Murray-Clay   +4 more
doaj   +1 more source

IGRINS Mirror Mount Design for Three Off-Axis Collimators and One Slit-Viewer Fold Mirror [PDF]

Journal of Astronomy and Space Sciences, 2012
The Korea Astronomy and Space Science Institute and the Department of Astronomy at the University of Texas at Austin are developing a near infrared wide-band high resolution spectrograph, immersion grating infrared spectrometer (IGRINS).
Surangkhana Rukdee, Chan Park, Kang-Min Kim, Sungho Lee, Moo-Young Chun, In-Soo Yuk, Heeyoung Oh, Hwakyoung Jung, Chung-Uk Lee, Hanshin Lee, Marc D. Rafal, Stuart Barnes, Daniel T. Jaffe   +12 more
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Reduction and Archiving of Multiwavelength, Polarized-intensity Debris-disk Observations with the Gemini Planet Imager

The Astrophysical Journal Supplement Series
The Gemini Planet Imager (GPI), an extreme adaptive optics instrument on Gemini South, has been pivotal in the advancement of the debris-disk field.
Katie A. Crotts, Thomas M. Esposito, Brenda C. Matthews, Gaspard Duchêne, Christine H. Chen, Justin Hom, Paul Kalas, Briley L. Lewis, Stanimir Metchev, Maxwell Millar-Blanchaer, Deborah Padgett, Marshall Perrin, Bin Ren   +12 more
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Mineralogical Characterization and Phase Angle Study of Two Binary Near-Earth Asteroids, Potential Targets for NASA’s Janus Mission

The Planetary Science Journal, 2023
Ground-based characterization of spacecraft targets prior to mission operations is critical to properly plan and execute measurements. Understanding surface properties, such as mineralogical composition and phase curves (expected brightness at different ...
Lucille Le Corre, Juan A. Sanchez, Vishnu Reddy, Adam Battle, David C. Cantillo, Benjamin Sharkey, Robert Jedicke, Daniel J. Scheeres   +7 more
doaj   +1 more source