Results 1 to 10 of about 16,597 (261)

CEERS Epoch 1 NIRCam Imaging: Reduction Methods and Simulations Enabling Early JWST Science Results

open access: yesThe Astrophysical Journal Letters, 2023
We present the data release and data reduction process for the Epoch 1 NIRCam observations for the Cosmic Evolution Early Release Science Survey (CEERS). These data consist of NIRCam imaging in six broadband filters (F115W, F150W, F200W, F277W, F356W and
Micaela B. Bagley   +39 more
doaj   +1 more source

Highly luminescent colloidal CdS quantum dots with efficient near-infrared electroluminescence in light-emitting diodes [PDF]

open access: yes, 2016
We acknowledge financial support from FP7 project “Laser Induced Synthesis of Polymeric Nanocomposite Materials and Development of Micro-Patterned Hybrid Light Emitting Diodes (LED) and Transistors (LET)”-LAMP (Project G.A.247928). A.K.B.
Zhang, S.   +19 more
core   +1 more source

Contemporaneous Observations of Hα Luminosities and Photometric Amplitudes for M Dwarfs

open access: yesThe Astronomical Journal, 2023
While many M dwarfs are known to have strong magnetic fields and high levels of magnetic activity, we are still unsure about the properties of their starspots and the origin of their magnetic dynamos.
Aylin García Soto   +4 more
doaj   +1 more source

UWISH2 - the UKIRT Widefield Infrared Survey for H2 [PDF]

open access: yes, 2011
We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the first galactic quadrant (10° < l < 65°; ?1Graphic3 < b < +1Graphic3).
J. Hatchell   +99 more
core   +1 more source

The Effect of Starspots on Spectroscopic Age and Mass Estimates of Nonaccreting T Tauri Stars in the Taurus–Auriga Star-forming Region

open access: yesThe Astrophysical Journal
Accurate age and mass determinations for young pre-main-sequence stars are made challenging by the presence of large-scale starspots. We present results from a near-infrared spectroscopic survey of 10 T-Tauri Stars in Taurus-Auriga that characterize spot-
Facundo Pérez Paolino   +3 more
doaj   +1 more source

TWO-MIRROR OBJECTIVE WITH PLANE FIELD

open access: yesНаука и техника, 2006
The paper considers a light-strong anastigmat with plane field that consists of two aspherical mirrors. Calculation of design parameters is given in the paper.
N. K. Artioukhina, A. V. Bogatko
doaj   +1 more source

Astronomie spatiale infrarouge, aujourd’hui et demain = Infrared space astronomy, today and tomorrow

open access: yes, 2000
This book brings together the lectures given at the Les Houches summer school "Infrared space astronomy, today and tomorrow". It gives a wide overview of infrared astronomy, a wavelength domain crucial for studies of the solar system, stars at the ...
David, F, Lequeux, J, Casoli, F
core   +1 more source

How Accurately Can Obscured Galaxy Luminosities Be Measured Using Spectral Energy Distribution Fitting of Near- through Far-infrared Observations?

open access: yesThe Astrophysical Journal
Infrared-luminous galaxies are important sites of stellar and black hole mass assembly at most redshifts. Their luminosities are often estimated by fitting spectral energy distribution (SED) models to near- to far-infrared data, but the dependence of ...
Duncan Farrah   +25 more
doaj   +1 more source

SOFIA: Stratospheric Observatory for Infrared Astronomy

open access: yes, 2007
This viewgraph presentation reviews the Stratospheric Observatory for Infrared Astronomy (SOFIA). The contents include: 1) Heritage & History; 2) Level 1 Requirements; 3) Top Level Overview of the Observatory; 4) Development Challenges; and 5) Highlight ...
Kunz, Nans, Bowers, Al, Becker, Eric
core  

Kinematical and dynamical properties of recently discovered bulge and disc star clusters with WINERED

open access: yesAstronomy & Astrophysics
Context. Galactic globular clusters are a very important tool in explaining the characteristics of the Milky Way. Therefore it is essential to determine the kinematical and dynamical properties of the new star cluster candidates, especially at the low ...
Petralia Ilaria   +10 more
doaj   +1 more source

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