Results 21 to 30 of about 9,262 (225)

Near-Infrared Surface Photometry of Bulges and Disks of Spiral Galaxies : The Data [PDF]

open access: yes, 1997
: We present optical and near-infrared (NIR) surface brightness and colour profiles,in bands ranging from U to K, for the disk and bulge components of a complete sample of 30 nearby S0 to Sbc galaxies with inclinations larger than 50 degrees. We describe
Balcells, M.,   +5 more
core   +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

Infrared Photometry of Titan

open access: yesThe Astrophysical Journal, 1974
A set of observations of Titan at wavelengths from 1.6 through 34 microns shows that Titan has a remarkably low albedo near 1.6 micron. Thermal flux observations for 10 years at 10.6 microns and for 5 years at 21 microns suggest that the thermal properties of Titan remained constant over this period and are independent of phase.
F. J. Low, G. H. Rieke
openaire   +1 more source

Optical and Infrared Photometry of the Nearby Type Ia Supernovae 1999ee, 2000bh, 2000ca, and 2001ba [PDF]

open access: yes, 2004
We present near-infrared photometry of the Type Ia supernova (SN) 1999ee; also, optical and infrared photometry of the Type Ia SNe 2000bh, 2000ca, and 2001ba. For SNe 1999ee and 2000bh, we present the first-ever SN photometry at 1.035 μm (the Y band). We
Krisciunas, Kevin, Kevin   +59 more
core   +1 more source

Near-Infrared Photometry of Blazars

open access: yes, 1999
Two days of observations were conducted at the Palomar Observatory during the nights of 25 and 26 February 1997 with the Hale telescope, in order to search for rapid variability in the near-infrared (NIR) bands J, H, Ks for a selection of eight blazars.
Chapuis, C.   +4 more
openaire   +3 more sources

Red and Infrared Photometry of Be Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1987
All programme stars including standard stars were observed with the standard RI filters of the Johnson system with a 20-arcsec diaphragm for 4 nights during the 1982–83 observing season. A photoelectric photometer attached to the 1.2 meter reflecting telescope of the Japal— Rangapur Observatory was used for these observations.
G. C. Kilambi   +2 more
openaire   +1 more source

Light-emitting diodes and photodiodes in the deep ultra-violet range for absorption photometry in liquid chromatography, capillary electrophoresis and gas sensing [PDF]

open access: yes, 2016
Absorbance measurement in the deep ultra-violet range (below 300 nm) has been one of the most widely used detection methods for analytical techniques as a large number of organic compounds have strong absorption bands in the deep UV region.
Bui, Duy Anh
core   +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

NEAR-INFRARED THERMAL EMISSION DETECTIONS OF A NUMBER OF HOT JUPITERS AND THE SYSTEMATICS OF GROUND-BASED NEAR-INFRARED PHOTOMETRY [PDF]

open access: yes, 2014
We present detections of the near-infrared thermal emission of three hot Jupiters and one brown dwarf using the Wide-field Infrared Camera (WIRCam) on the Canada-France-Hawaii Telescope (CFHT).
Cushing, Michael   +23 more
core   +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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