Results 81 to 90 of about 9,262 (225)

Infrared photometry of planetary nebulae.

The Astrophysical Journal, 1973
Photometric observations from 1.6 to 3.5 mu of 28 planetary nebulae are presented. Most of these emit 3.5- mu radiation in excess of that expected from thermal emission by ionized gas. When combined with the measurements of Willner, Becklin, and Visvanathan, the data show that the nebulae with relatively high densities are the more likely to emit ...
S. E. Persson, J. A. Frogel
openaire   +1 more source

The Second and Third Data Releases from the UKIRT Hemisphere Survey

The Astronomical Journal
This paper describes the second and third data releases (DR2 and DR3, respectively) from the ongoing United Kingdom Infrared Telescope Hemisphere Survey (UHS).
Adam C. Schneider, Frederick J. Vrba, Justice Bruursema, Jeffrey A. Munn, Mike Irwin, Mike Read, Watson Varricatt, Tom Kerr, Klaus Hodapp, Simon Dye, Stephen J. Williams, Andrew T. Cenko, Trudy M. Tilleman, Marc A. Murison, Barry Rothberg, Scott Dahm, Bryan Dorland, Andy Lawrence, Kenneth C. Chambers   +18 more
doaj   +1 more source

Insecticide@Silica Nanocontainers with High Cypermethrin Load and Improved Photostability

ChemNanoMat, Volume 12, Issue 4, April 2026.
Cypermethrin@Octylsilicate core@shell nanocontainers (total diameter: 34 nm, diameter of cypermethrin core: 15 nm) exhibit high colloidal stability in water and high photochemical stability of the insecticide, allowing to reduce reapplication cycles and, thus, time and costs of insecticide application.
Mark Rutschmann, Jasmin Mokinski, Claus Feldmann   +2 more
wiley   +1 more source

Infrared-selected AGN

, 2016
The extreme conditions that govern AGN activity give rise to an SED that is unlike that of most other astrophysical sources. This fact is exploited at many different wavelength regimes to identify these objects among the much larger population of ...
Assef, Roberto J., Assef, Roberto J. (5286427)   +1 more
core   +1 more source

Photometric Redshift Probability Density Functions via Neural Network Classification for DESI Legacy Imaging Surveys and Pan-STARRS

The Astrophysical Journal Supplement Series
We present a neural network classification (NNC) method for photometric redshift estimation that produces well-calibrated redshift probability density functions (PDFs).
Da-Chuan Tian, Zhong-Lue Wen, Jun-Qing Xia   +2 more
doaj   +1 more source

A deep photometric survey of the Abell cluster SO423 : a pilot study for the UCT SALT supercluster survey

, 2007
Includes bibliographical references (leaves 99-101)
Kotze, J P
core  

Near-Infrared photometry of the Galactic Globular Cluster NGC 6441

, 2006
We present new near-infrared Ks photometry of the interesting Galactic globular cluster NGC 6441. The optical-NIR color-magnitude diagram shows evolutionary features that seem to agree with a canonical evolutionary framework.
Vanzi, L., Buonanno, R., Dall'Ora, M., Storm, J., Andreuzzi, G., Marconi, M., Stetson, P. B., Monelli, M., Vivas, A. K., Bono, G., Piersimoni, A., Ripepi, V., Caputo, F.   +12 more
core   +1 more source

Three Thousand Motion-confirmed L and T Dwarf Candidates from the Backyard Worlds: Planet 9 Citizen Science Project

The Astronomical Journal
The Backyard Worlds: Planet 9 citizen science project uses data from the Wide-field Infrared Survey Explorer to detect infrared objects with significant motion. In this work, we present the majority of the L and T dwarf candidates discovered through this
Adam C. Schneider, Marc J. Kuchner, Jacqueline K. Faherty, Aaron M. Meisner, J. Davy Kirkpatrick, Adam J. Burgasser, Daniella Bardalez Gagliuffi, Thomas P. Bickle, Dan Caselden, Sarah L. Casewell, Jonathan Gagné, Easton J. Honaker, Frank Kiwy, Federico Marocco, Austin Rothermich, Nikolaj Stevnbak Andersen, Lizzeth Ruiz Arroyo, Bruce Baller, Paul Beaulieu, John Bell, Martin Bilsing, Troy K. Bohling, Guillaume Colin, Giovanni Colombo, Sam Deen, Alexandru Dereveanco, Kevin Dixon, Hugo A. Durantini Luca, Deiby Flores, Christoph Frank, Christopher Fulvi, Michael Gallmann, Jean Marc Gantier, Konstantin Glebov, Léopold Gramaize, Leslie K. Hamlet, Ken Hinckley, Kevin Jablonski, Peter A. Jałowiczor, Martin Kabatnik, Peter Kasprowitz, K Ly, David W. Martin, Naoufel Marzak, Alexander McColgan, Neil J. McEwan, Marianne N. Michaels, William Pendrill, Stéphane Perlin, Ben Pumphrey, James Rabe, Henry Raway, Walter Ruben Robledo, David Roser, Animesh Roy, Arttu Sainio, Vincent Schindler, Manfred Schonau, Jörg Schümann, Karl Selg-Mann, Andrea Serio, David Sirbescu-Stanley, Patrick Smith, Andres Stenner, Christine Sunjoto, Christopher Tanner, Melina Thévenot, Vinod Thakur, Mayahuel Torres Guerrero, Maurizio Ventura, Nikita V. Voloshin, Jim Walla, Zbigniew Wȩdracki, Bailey Weyandt, Breck Wilhite, Spartacus Zitouni   +75 more
doaj   +1 more source

NEAR-INFRARED PHOTOMETRY OF WISE J085510.83–071442.5 [PDF]

, 2016
We present Hubble Space Telescope (HST) near-infrared photometry of the coldest known brown dwarf, WISE J085510.83−071442.5 (WISE 0855−0714). WISE 0855−0714 was observed with the Wide Field Camera 3 (WFC3) on board HST using the F105W, F125W, and F160W ...
Gelino, Christopher R., Cushing, Michael C., Schneider, Adam C., J. Davy Kirkpatrick, Adam C. Schneider, Kirkpatrick, J. Davy, Michael C. Cushing, Christopher R. Gelino   +7 more
core   +1 more source

Optical photometry and polarimetry and infrared photometry of 3C 345 in outburst

The Astrophysical Journal, 1993
We present V-band CCD photometry, UBVRI photopolarimetry, and near simultaneous JHK photometry of 3C 345 during a renewed outburst in spring of 1992, which reached maximum at the end of April. The observations also show a large and variable polarization.
Mark R. Kidger, Jose A. de Diego, Leo O. Takalo, Aimo Sillanpaa, Masami Okyudo   +4 more
openaire   +1 more source