Results 21 to 30 of about 186,707 (292)

The colibri telescope array for KBO detection through serendipitous stellar occultations: A technical description

Frontiers in Astronomy and Space Sciences, 2022
We present the technical design, construction and testing of the Colibri telescope array at Elginfield Observatory near London, Ontario, Canada. Three 50-cm telescopes are arranged in a triangular array and are separated by 110–160 m.
Michael J. Mazur, Stanimir Metchev, Stanimir Metchev, Rachel A. Brown, Rachel A. Brown, Ridhee Gupta, Richard Bloch, Tristan Mills, Emily Pass   +8 more
doaj   +1 more source

Search and study of the space debris and asteroids within ISON project [PDF]

Anais da Academia Brasileira de Ciências, 2021
International Scientific Optical Network (ISON) is an open international voluntary project specializing in observations of the near-Earth space objects.
IGOR E. MOLOTOV, YURIJ N. KRUGLY, LEONID V. ELENIN, THOMAS SCHILDKNECHT, VASILIJ V. RUMYANTSEV, RAGULI YA. INASARIDZE, VOVA R. AIVAZYAN, GIVI V. KAPANADZE, LLUIS R. CANALS, FILIPPO GRAZIANI, PAOLO TEOFILATTO, SHUHRAT A. EHGAMBERDIEV, OTABEK A. BURKHONOV, EKATERINA D. CHORNAYA, ANTON V. KOCHERGIN, YEHIA A. ABDEL-AZIZ, AHMED M. ABDELAZIZ, VLADIMIR V. KOUPRIANOV, MIKHAIL V. ZAKHVATKIN, VICTOR A. STEPANYANTS, INNA V. REVA, ALEXANDER V. SEREBRYANSKIY, SERGEI E. SCHMALZ, IGOR V. NIKOLENKO   +23 more
doaj   +1 more source

X-ray photometry [PDF]

, 2015
I describe a method for synthesizing photometric passbands for use with current and future X-ray instruments. The method permits the standardisation of X-ray passbands and thus X-ray photometry between different instruments and missions.
Page, M. J.
core   +2 more sources

Metabolic sensing in AgRP neurons integrates homeostatic state with dopamine signalling in the striatum

eLife, 2022
Agouti-related peptide (AgRP) neurons increase motivation for food, however, whether metabolic sensing of homeostatic state in AgRP neurons potentiates motivation by interacting with dopamine reward systems is unexplored. As a model of impaired metabolic-
Alex Reichenbach, Rachel E Clarke, Romana Stark, Sarah Haas Lockie, Mathieu Mequinion, Harry Dempsey, Sasha Rawlinson, Felicia Reed, Tara Sepehrizadeh, Michael DeVeer, Astrid C Munder, Juan Nunez-Iglesias, David C Spanswick, Randall Mynatt, Alexxai V Kravitz, Christopher V Dayas, Robyn Brown, Zane B Andrews   +17 more
doaj   +1 more source

Photometric Solutions of W UMa Type Stars: GSC2576-0319 and GSC2584-1731 [PDF]

Journal of Astronomy and Space Sciences, 2006
High-precision photometric observations were performed in BVI bandpasses using 1m robotic telescope at Mt. Lemmon Observatory for two binary stars, which are reclassified as W UMa-type systems from ROTSE(Robotic Optical Transient Search Experiment ...
Chung-Uk Lee, Jae Woo Lee, Chun-Hwey Kim
doaj   +1 more source

The ability of intermediate-band Stromgren photometry to correctly identify dwarf, subgiant, and giant stars and provide stellar metallicities and surface gravities

, 2010
[Abridged] Several large scale photometric and spectroscopic surveys are being undertaken to provide a more detailed picture of the Milky Way. Given the necessity of generalisation in the determination of, e.g., stellar parameters when tens and hundred ...
A. S. Árnadóttir, Abazajian, Adén, Adén, Alonso, Alonso, Anthony-Twarog, Anthony-Twarog, Arce, Arellano Ferro, Beers, Bell, Bensby, Bond, Bond, Bonfils, Bonifacio, Calamida, Calamida, Carney, Carollo, Chen, Clausen, Clem, Cohen, Cousins, Crawford, Crawford, Edvardsson, Faria, Favata, Feltzing, Ferguson, Flynn, Gilmore, Grebel, Grundahl, Grønbech, Gustafsson, Gustafsson, Haywood, Heiter, Helmi, Hilker, Holmberg, I. Lundström, Ibata, Ivezic, Johnson, Jønch-Sørensen, Kirby, Kotoneva, Landolt, Lee, Lester, Luck, Malyuto, Martell, Martell, Mermilliod, Mishenina, Nissen, Nordström, Ochsenbein, Olsen, Olsen, Olsen, Olsen, Olsen, Olsen, Perry, Perryman, Ramírez, Ramírez, Ramírez, S. Feltzing, Santos, Santos, Santos, Schlegel, Schuster, Schuster, Schuster, Schuster, Schuster, Schuster, Sousa, Strigari, Strömgren, Strömgren, Thorén, Twarog, Twarog, Valenti, van Leeuwen, Vandenberg, VandenBerg, von Hippel, von Hippel, Woolf, Yasuda, Yong, York, Önehag   +103 more
core   +1 more source

The CALSPEC Stars P177D and P330E [PDF]

, 2015
Multicolor photometric data are presented for the CALSPEC stars P177D and P330E. Together with previously published photometry for nine other CALSPEC standards, the photometric observations and synthetic photometry from HST/STIS spectrophotometry agree ...
Bohlin, Ralph C., Landolt, Arlo U.
core   +3 more sources

INFLUENCE OF LASER BEAM PROFILE ON LIGHT SCATTERING BY HUMAN SKIN DURING PHOTOMETRY BY ELLIPSOIDAL REFLECTORS

Приборы и методы измерений, 2018
The correct accounting of laser emitter parameters for improvement of diagnostic authenticity of methods of optical biomedical diagnostic is important problem for applied biophotonic tasks.
M. A. Bezuglyi, N. V. Bezuglaya, S. Kostuk   +2 more
doaj   +1 more source

Extended Photometry for the DEEP2 Galaxy Redshift Survey: A Testbed for Photometric Redshift Experiments

, 2013
This paper describes a new catalog that supplements the existing DEEP2 Galaxy Redshift Survey photometric and spectroscopic catalogs with ugriz photometry from two other surveys; the Canada-France-Hawaii Legacy Survey (CFHTLS) and the Sloan Digital Sky ...
Coil, Alison L., Cooper, Michael C., Gwyn, Stephen D. J., Matthews, Daniel J., Newman, Jeffrey A.   +4 more
core   +1 more source

The `666' collaboration on OGLE transits: I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with VLT deconvolution photometry [PDF]

, 2007
Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets.
A. Udalski, Alard, Alard, Bakos, Bouchy, Bouchy, C. Melo, C. Moutou, Claret, Collier Cameron, D. Minniti, D. Naef, D. Queloz, F. Bouchy, F. Pont, Fernandez, G. Pietrzynski, Gillon, Girardi, Guillot, J. M. Fernandes, Konacki, Konacki, Kruszewski, M. Gillon, M. Mayor, M. T. Ruiz, Mandel, Mazeh, Moutou, N. C. Santos, O'Donovan, Pietrinferni, Pont, Pont, Pont, S. Udry, Santos, T. Mazeh, Torres, Udalski, Udalski, W. Gieren, Winn, Wittenmeyer   +44 more
core   +2 more sources