Results 91 to 100 of about 791,707 (216)
Surface photometry of early-type galaxies in rich clusters [PDF]
, 1998 This thesis investigates the morphology of early-type galaxies in two rich clusters using 2D surface photometry. In particular, the amount of light in the 'disk' component is focussed upon, as the presence of a disk is the main morphological criterion in
Steel, James, Steel, J.
core
, 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. +1 more
core +1 more source
Exploration of the Near-infrared Colors of Cold Y Dwarfs from the Ground and Space
The Astrophysical JournalThe James Webb Space Telescope (JWST) has provided critical mid-infrared data for cold brown dwarfs. It has also provided low-resolution near-infrared spectra, and for faint sources these are the first spectra at these wavelengths.
S. K. Leggett +2 more
doaj +1 more source
Prediction of Feed Digestibility Using Differences in NIRS Spectra between Feeds and Feces at a Determined Region of Wavelength [PDF]
, 1998 A total of seventy-two pairs of feed and fecal samples collected from the digestion trials of dairy catlle were used in the study to predict dry matter digestibility (OMO).
Agung PURNOMOADI +9 more
core +1 more source
Infrared detectors for astronomical photometry
, 2009 The work described in this thesis involved an investigation of the relative merits of selected inexpensive room temperature detectors for use in visible and near infrared astronomical photometry of bright stars.
Philip Wayne Thompson (20156277)
core +1 more source
The Astronomical JournalWe present point-source photometry from the Spitzer Space Telescope's final survey of the Small Magellanic Cloud (SMC). We mapped nearly 30 deg ^2 in two epochs in 2017, with the second extending to early 2018 at 3.6 and 4.5 μ m using the Infrared Array ...
T. A. Kuchar +13 more
doaj +1 more source
The Astrophysical JournalWe measure the bolometric luminosity of a complete and unbiased 12 μ m-selected sample of active galactic nuclei (AGN) in the local Universe. For each galaxy, we used a 10-band radio-to-X-ray spectral energy distribution (SED) to isolate the genuine AGN ...
Luigi Spinoglio +2 more
doaj +1 more source
Objective: To find out if there is a difference in the results of LED inspection using the infrared-barrier photometry and near-infrared photometry methods against the Westergren method.
Napitupulu, Ester Maduma
core
The Astronomical JournalWe present algorithms and software for constructing high-precision difference images to detect and measure transients, such as microlensing events, in crowded stellar fields using the Nancy Grace Roman Space Telescope.
Michael D. Albrow
doaj +1 more source
, 2019 <p>Version 4.0 of the TASOC Photometry Pipeline, used for releases of sectors 3 and 4.</p ...
Benjamin Pope +3 more
core +1 more source