Results 51 to 60 of about 179,348 (181)

Geology of the central uplift of the Kamestastin Lake impact structure, Labrador, Canada

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1417-1433, July 2026.
Abstract The ~28 km Kamestastin (Mistastin) Lake impact structure is a relatively well‐preserved and well‐exposed complex impact structure. The central uplift of this structure is accessible as two islands in the middle of Kamestastin Lake. We present an updated, detailed geological map and description of Horseshoe and Bullseye islands that provides ...
A. C. Singleton, G. R. Osinski
wiley   +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

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, T. Hodson, Walker I., Robson I., Parkes W., D. Gostick, R. Doriese, I. Walker, D. Kelly, C. Dunare, G. Pisano, Kycia J., J. Kycia, Audley M. D., Halpern M., D. Bintley, Hilton G., Bintley D., P. Bastien, L. Vale, A. Woodcraft, F. Gannaway, Dunare C., W. Parkes, Pisano G., Ullom J., Atkinson D., M.D. Audley, Gostick D., Irwin K., A. Walton, Hodson T., Duncan W., D. Atkinson, P. Ade, MacIntosh M., Montgomery D., M. Fich, M. Cliffe, W. Duncan, Holland W., Hunt C., D. Montgomery, Vale L., G. Hilton, Gao X., W. Holland, R. Sudiwala, M. MacIntosh, M. Ellis, Ade P., X. Gao, Kelly D., Bastien P., Smith I., Reintsema C., I. Robson, M. Halpern, H. McGregor, Doriese R., Sudiwala R., J. Ullom, Walton A., Ellis M., C. Hunt, G. Mitchell, C. Reintsema, Woodcraft A., McGregor H., Fich M., Gannaway F., D. Naylor, Cliffe M., Naylor D., K. Irwin, Mitchell G., I. Smith   +113 more
core   +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

Small Explorer project: Submillimeter Wave Astronomy Satellite (SWAS). Mission operations and data analysis plan [PDF]

, 1990
The Mission Operations and Data Analysis Plan is presented for the Submillimeter Wave Astronomy Satellite (SWAS) Project. It defines organizational responsibilities, discusses target selection and navigation, specifies instrument command and data ...
Melnick, Gary J.
core  

A Full Resolution of the 450 μm Extragalactic Background Light

The Astrophysical Journal Letters
The extragalactic background light (EBL) is the cumulative radiation outside the Milky Way. The determination of its corresponding primary emitting sources as well as its total energy level across the entire electromagnetic spectrum has profound ...
Qi-Ning Hsu, L. L. Cowie, Chian-Chou Chen, A. J. Barger   +3 more
doaj   +1 more source

Technology Advances for Radio Astronomy [PDF]

, 2013
The field of radio astronomy continues to provide fundamental contributions to the understanding of the evolution, and inner workings of, our universe.
Russell, Damon Stuart
core   +1 more source

Io’s SO2 and NaCl Wind Fields from ALMA

The Astrophysical Journal Letters
We present spatially resolved measurements of SO _2 and NaCl winds on Io at several unique points in its orbit: before and after eclipse and at maximum eastern and western elongation.
Alexander E. Thelen, Katherine de Kleer, Martin A. Cordiner, Imke de Pater, Arielle Moullet, Statia Luszcz-Cook   +5 more
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

Submillimeter galaxies behind the bullet cluster (1E 0657-56) [PDF]

, 2010
Context. Clusters of galaxies are effective gravitational lenses able to magnify background galaxies and making it possible to probe the fainter part of the galaxy population.
OMAR LOPEZ CRUZ
core