Results 51 to 60 of about 227,979 (276)
3D-HST WFC3-SELECTED PHOTOMETRIC CATALOGS IN THE FIVE CANDELS/3D-HST FIELDS: PHOTOMETRY, PHOTOMETRIC REDSHIFTS, AND STELLAR MASSES [PDF]
, 2014 The 3D-HST and CANDELS programs have provided WFC3 and ACS spectroscopy and photometry over ≈900 arcmin2 in five fields: AEGIS, COSMOS, GOODS-North, GOODS-South, and the UKIDSS UDS field.
R. Skelton +26 more
semanticscholar +1 more source
Combining Aperture and PSF-Fitting Photometry
Open Astronomy, 2003 The multiple object and multiple frame (MOMF) CCD photometry package, that combines the advantages of aperture and PSF photometry is described. Results from comparisons with other programs are given; no other photometry package was found to give better ...
Handler G.
doaj +1 more source
Spitzer Photometry of WISE-Selected Brown Dwarf and Hyper-Luminous Infrared Galaxy Candidates [PDF]
, 2012 We present Spitzer 3.6 and 4.5 $\mu$m photometry and positions for a sample of 1510 brown dwarf candidates identified by the WISE all-sky survey. Of these, 166 have been spectroscopically classified as objects with spectral types M(1), L(7), T(146), and ...
A. Mainzer +53 more
core +5 more sources
NORAD TLE Type Orbit Determination of LEO Satellites Using GPS Navigation Solutions [PDF]
Journal of Astronomy and Space Sciences, 2002 NORAD Two Line Elements (TLE) are widely used for the increasing number of small satellite mission operations and analysis. However, due to the irregular periodicity of generation of the NORAD TLE, a new TLE that is independent of NORAD is required.
Chang-Hwa Cho +4 more
doaj +1 more source
, 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
SPECULATOR: Emulating Stellar Population Synthesis for Fast and Accurate Galaxy Spectra and Photometry [PDF]
Astrophysical Journal Supplement Series, 2019 We present speculator—a fast, accurate, and flexible framework for emulating stellar population synthesis (SPS) models for predicting galaxy spectra and photometry.
J. Alsing +8 more
semanticscholar +1 more source
Sobre a Dosagem Fotométrica do Cobre em Águas
Brazilian Archives of Biology and Technology, 2001 The author presents an analytic process for copper quantitative determination in mineral and potable waters, based in the reaction of the cation copper with sodium diethyl-dithio carbamate. Due to the presence of certain elements common in water, such as
Reinaldo Spitzner
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
Photometry of high-redshift blended galaxies using deep learning [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The new generation of deep photometric surveys requires unprecedentedly precise shape and photometry measurements of billions of galaxies to achieve their main science goals.
A. Boucaud +13 more
semanticscholar +1 more source
Current and Future Applications of Reverberation-Mapped Quasars in Cosmology
Frontiers in Astronomy and Space Sciences, 2019 Reverberation mapping technique (RM) is an important milestone that has elevated our understanding of Active Galactic Nuclei (AGN) demographics, giving information about the kinematics and the structure of the Broad Line Region (BLR).
Swayamtrupta Panda +3 more
doaj +1 more source