Results 31 to 40 of about 2,356 (224)

The JCMT Legacy Release: SCUBA-2 850 μm Coadds and Catalogs

The Astrophysical Journal Supplement Series
We present the James Clerk Maxwell Telescope (JCMT) 850 μ m Legacy Release, containing uniformly reduced, coadded tiles, and catalogs of detected emission, for the 850 μ m data from all Submillimetre Common User Bolometer Array 2 (SCUBA-2) observations ...
Sarah F. Graves, Jessica T. Dempsey, Graham S. Bell, David S. Berry, Iain M. Coulson, Malcolm J. Currie, Per Friberg, Tim Jenness, Doug Johnstone, Junhao Liu, Steven Mairs, Harriet A. L. Parsons, Harold Pena, Mark G. Rawlings, Holly S. Thomas, Jan G. A. Wouterloot   +15 more
doaj   +1 more source

The role of composition in the spectral evolution of carbonaceous asteroids as informed by Bennu sample return

Meteoritics &Planetary Science, EarlyView.
Abstract Near‐Earth rubble‐pile asteroids Bennu and Ryugu are part of the carbonaceous taxonomic complex (C‐complex), and samples returned from both bodies resemble the most aqueously altered carbonaceous chondrites. However, telescopic and spacecraft visible–near infrared (VIS–NIR) reflectance spectra of Ryugu exhibit a red (positive) spectral slope ...
Ralph E. Milliken, Takahiro Hiroi, Victoria E. Hamilton, Cody D. Schultz, Ed A. Cloutis, Hannah H. Kaplan, Melissa K. Kontogiannis, Nathalia Vega‐Santiago, Dani N. DellaGiustina, Harold C. Connolly Jr., Dante S. Lauretta   +10 more
wiley   +1 more source

An Improved Upper Limit of Cyanodiacetylene (HC5N) in the Atmosphere of Titan

The Astronomical Journal
In the complex Titan atmospheric chemistry, photochemical reactions involving cyanodiacetylene (HC _5 N) may be important as reaction pathways that could lead to the production of amines and aromatic molecules.
Takahiro Iino, Kotomi Taniguchi, Hideo Sagawa, Martin A. Cordiner, Shuya Tan, Shigeru Takahashi, Hikaru Kubota   +6 more
doaj   +1 more source

Frequency Standard Contributions to Limitations on the Signal‐to‐Noise Ratio in Very Long Baseline Interferometric Observations

Radio Science, Volume 61, Issue 6, June 2026.
Abstract Since its observation in 2019, the first image of a super‐massive black hole using Very Long Baseline Interferometry (VLBI) with an Earth‐scale baseline has generated much scientific and public interest. Work is now underway to extend the baseline into space to obtain higher image resolution.
E. A. Burt, T. A. Ely, G. C. Bower, T. J. W. Lazio, M. Anderson, S. Hernandez   +5 more
wiley   +1 more source

Spectral Characterization of CO2‐H2O Ice Layering Under Controlled Mars Polar Conditions as Laboratory Analogs for Seasonal Cap Activity

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Seasonal CO2 and H2O ice blanket the Martian polar caps, and their spectral contributions mix during seasonal evolution. Particularly in late northern winter, the spectral signature of H2O ice obscures that of CO2 ice. Using the MARVIN chamber at York University, we produced controlled analogs of layered polar ice under Mars‐like pressure (∼6 ...
Jamie A. Isen, Andrej Stojanovic, Wendy M. Calvin, Isaac B. Smith   +3 more
wiley   +1 more source

Dust Properties of 870 μm-selected Galaxies in GOODS-S

The Astrophysical Journal, 2023
We analyze the dust properties of 57 870 μ m-selected dusty star-forming galaxies in GOODS-S using new deep Atacama Large Millimeter/Submillimeter Array 1.2, 2, and 3 mm continuum imaging together with other far-infrared through millimeter data.
S. J. McKay, A. J. Barger, L. L. Cowie, F. E. Bauer, M. J. Nicandro Rosenthal   +4 more
doaj   +1 more source

Large format imaging spectrograph for the Large Submillimeter Telescope (LST)

, 2020
We present a conceptual study of a large format imaging spectrograph for next-generation large (50-m class) single-dish telescopes, i.e., the Large Submillimeter Telescope (LST) and Atacama Large Aperture Submillimeter Telescope (AtLAST).
Kawabe, Ryohei (author), Tamura, Yoichi (author), Baselmans, J.J.A. (author), Hayatsu, Natsuki H. (author), Endo, A. (author), Kohno, Kotaro (author), Moriwaki, Kana (author), Inoue, Akio K. (author), Karatsu, K. (author)   +8 more
core   +1 more source

Jets in Low-Mass Protostars

Universe
Jets and outflows are key components of low-mass star formation, regulating accretion and shaping the surrounding molecular clouds. These flows, traced by molecular species at (sub)millimeter wavelengths (e.g., CO, SiO, SO, H2CO, and CH3OH) and by atomic,
Somnath Dutta
doaj   +1 more source

CI chondrite Oued Chebeika 002 links asteroids Bennu and Ryugu to common parent body

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 801-818, May 2026.
Abstract CI chondrites are a compositionally primitive group of meteorites that have undergone extensive aqueous alteration, providing insights into the evolution of primitive planetesimals. Oued Chebeika 002 is the most pristine CI chondrite to date.
Megan Broussard, Katharina Lodders, Paul K. Carpenter, Piers Koefoed, Karen Ziegler, Kunihiko Nishiizumi, Marc W. Caffee, Laurence A. J. Garvie, Ryan C. Ogliore, Anthony J. Irving, Bradley L. Jolliff, Kun Wang   +11 more
wiley   +1 more source

SCUBA-2: A Large-Format CCD-Style Imager for Submillimeter Astronomy

, 2007
We describe the capabilities of SCUBA-2, the first CCD-like imager for submillimeter astronomy, and the technologies that make it possible. Unlike previous detectors using discrete bolometers, SCUBA-2 has two dc-coupled, monolithic arrays with a total of
Montgomery, D., Ellis, M., Fich, M., Gostick, D., Duncan, W., Naylor, D., Doriese, R., Parkes, W., Atkinson, D., Vale, L., Kelly, D., Halpern, M., Audley, M. D., MacIntosh, M., Walton, A., Woodcraft, Adam, Hilton, G., McGregor, H., Robson, I., Ullom, J., Kycia, J., Bastien, P., Hodson, T., Smith, I., Dunare, C., Pisano, Giampaolo, Sudiwala, Rashmikant V., Ade, Peter A. R., Hunt, Cynthia L., Gao, X., Walker, Ian Kenneth, Holland, W., Irwin, K., Reintsema, C., Mitchell, G., Cliffe, M., Gannaway, Frederick, Bintley, Dan   +37 more
core   +1 more source