Results 1 to 10 of about 791,707 (216)

Absolute Calibration. III. Improved Absolute Calibration for the Visible through the Mid-infrared

open access: yesThe Astronomical Journal, 2023
We propose Sirius as an improved zero-point-defining star and calibrate its spectrum to an accuracy of ∼0.6% in both the visible and infrared. This result is based on a newly derived independent calibration in the visible of similar accuracy to the ...
G. H. Rieke   +3 more
doaj   +1 more source

The Farmer: A Reproducible Profile-fitting Photometry Package for Deep Galaxy Surveys

open access: yesThe Astrophysical Journal Supplement Series, 2023
While space-borne optical and near-infrared facilities have succeeded in delivering a precise and spatially resolved picture of our Universe, their small survey area is known to underrepresent the true diversity of galaxy populations.
J. R. Weaver   +19 more
doaj   +1 more source

Astrometry and Photometry for ≈1000 L, T, and Y Dwarfs from the UKIRT Hemisphere Survey

open access: yesThe Astronomical Journal, 2023
We present the positions, proper motions, and near-infrared photometry for 966 known objects with spectral types later than M that were observed as part of the the UKIRT Hemisphere Survey (UHS).
Adam C. Schneider   +7 more
doaj   +1 more source

Measuring the Dust Attenuation Curves of SINGS/KINGFISH Galaxies Using Swift/UVOT Photometry

open access: yesThe Astrophysical Journal, 2023
We present Swift/Ultraviolet Optical Telescope (UVOT) integrated light photometry of the Spitzer Infrared Nearby Galaxies Survey (SINGS) and the Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel (KINGFISH) samples of nearby galaxies ...
Alexander Belles   +5 more
doaj   +1 more source

Near-infrared transillumination imaging combined with aperture photometry for the quantification of melanin in the iris pigment epithelium.

open access: yesPLoS ONE, 2020
Near-infrared transillumination is used in the diagnosis and the management of different eye diseases. In particular, it enables the visualization of melanin in the pigment epithelium of the iris.
Maciej Czepita
doaj   +1 more source

Search for Young and Intermediate-age Stellar Populations in the Galactic Center with Subaru/MOIRCS and CO Narrowband Filters

open access: yesThe Astrophysical Journal, 2023
Extinction toward the Galactic Center (GC) is extreme and limits observations of its stars to the infrared. In addition, the extinction varies on scales of arcseconds.
Shogo Nishiyama   +2 more
doaj   +1 more source

The Panchromatic Hubble Andromeda Treasury. XXI. The Legacy Resolved Stellar Photometry Catalog

open access: yesThe Astrophysical Journal Supplement Series, 2023
We present the final legacy version of stellar photometry for the Panchromatic Hubble Andromeda Treasury (PHAT) survey. We have reprocessed all of the Hubble Space Telescope Wide Field Camera 3 and Advanced Camera for Surveys near-ultraviolet (F275W ...
Benjamin F. Williams   +16 more
doaj   +1 more source

Solution to the Conflict between the Estimations of Resolved and Unresolved Galaxy Stellar Mass from the Perspective of JWST

open access: yesThe Astrophysical Journal, 2023
By utilizing the spatially resolved photometry of galaxies at 0.2 < z < 3.0 in the CEERS field, we estimate the resolved and unresolved stellar mass via fitting of the spectral energy distribution (SED) to study the discrepancy between them.
Jie Song   +4 more
doaj   +1 more source

A Multiwavelength Classification and Study of Red Supergiant Candidates in NGC 6946

open access: yesThe Astrophysical Journal, 2023
We have combined resolved stellar photometry from Hubble Space Telescope (HST), Spitzer, and Gaia to identify red supergiant (RSG) candidates in NGC 6946, based on their colors, proper motions, visual morphologies, and spectral energy distributions.
Jared R. Johnson   +5 more
doaj   +1 more source

INFRARED PHOTOMETRY OF SAKURAI'S OBJECT (V4334 Sgr) IN 1996-2000

open access: yesOdessa Astronomical Publications, 2017
The results of the photometric observations of V4334 Sgr and characteristics of its evolution after outburst are presented.
A. M. Tatarnikov   +4 more
doaj   +1 more source

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