Results 91 to 100 of about 9,262 (225)

Infrared Photometry of GEO Spacecraft with WISE

, 2016
NASA launched the Wide-field Infrared Survey Explorer (WISE) into orbit on December 2009 with a mission to scan the entire sky in the infrared in four wavelength bands of 3.4, 4.6, 12, and 22 microns.
Schildknecht, Thomas, Lee, C.H., Seitzer, P., Cutri, R.M., Grillmair, C.J.   +4 more
core  

Near-infrared photometry and spectroscopy of the low Galactic latitude globular cluster 2MASS-GC 03 [PDF]

, 2016
Indexación: Web of ScienceWe present deep near-infrared photometry and spectroscopy of the globular cluster 2MASS-GC 03 projected in the Galactic disc using MMT and Magellan Infrared Spectrograph on the Clay Telescope (Las Campanas Observatory) and VISTA
Alegria, S. Ramirez, Moni Bidin, Ch., Villanueva, V., Dékány, I., Borissova, J., Minniti, D., Lucas, P. W., Moyano, M., Smith, L. C., Ramírez Alegría, S., Kuhn, M. A., Bidin, Ch Moni, Carballo-Bello, Julio A., Alonso-García, J., Palma, T., Kurtev, R., Medina, N.   +16 more
core   +1 more source

Exploration of the Near-infrared Colors of Cold Y Dwarfs from the Ground and Space

The Astrophysical Journal
The 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, Mark W. Phillips, Pascal Tremblin   +2 more
doaj   +1 more source

Near-infrared photometry and optical spectroscopy of IRAS sources in the Small Magellanic Cloud

, 1997
Near-infrared photometry is obtained of 30 IRAS sources in the direction of the Small Magellanic Cloud selected to be possible AGB stars. Low resolution 4000 to 10 000 A spectroscopy is presented for 10 of them, plus two AGB stars in the LMC.
Blommaert, J.A.D.L. (Infrared Space Observatory (ISO), Madrid (Spain). Science Operations Centre), Max-Planck-Institut fuer Astrophysik, Garching (Germany), Groenewegen, M.A.T. (Max-Planck-Institut fuer Astrophysik, Garching (Germany))   +2 more
core  

Extreme infrared variables from UKIDSS-I. A concentration in star-forming regions [PDF]

, 2014
We present initial results of the first panoramic search for high-amplitude near-infrared variability in theGalactic plane.We analyse the widely separated two-epoch K-band photometry in the fifth and seventh data releases of the UKIDSS Galactic plane ...
Drew, J. E., Kumar, M.S.N., Adamson, A., Froebrich, D., Contreras Pena, C., Kumar, M. S. N., Lucas, P. W., Adamson, A.J., Drew, J.E., Wright, N. J., Goldstein, J., Drew, Janet E., Wright, N.J., Davis, C.J., Davis, Chris J., Barentsen, Geert, Lucas, P.W., Froebrich, Dirk, Barentsen, G., Davis, C. J.   +19 more
core   +1 more source

The Spectral Energy Distributions and Bolometric Luminosities of Local AGN: Study of the Complete 12 μm AGN Sample

The Astrophysical Journal
We 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, Juan Antonio Fernández-Ontiveros, Matthew A. Malkan   +2 more
doaj   +1 more source

Dazzle: Oversampled Image Reconstruction and Difference-imaging Photometry for the Nancy Grace Roman Space Telescope

The Astronomical Journal
We 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

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  

Infrared photometry and spectroscopy of the brown dwarf candidate PC0025+0447 [PDF]

, 1992
We have obtained I, J, H, Kf and L' photometry and infrared spectroscopy (λ/Δλ ≃ 100) from 1.2-2.4 µm of the unusual emission line M star PC0025+0447.
Tinney, C. G., Persson, S. E., Neugebauer, G., Graham, James R., Greenstein, J. L., Matthews, K.   +5 more
core  

Precision of a Low-Cost InGaAs Detector for Near Infrared Photometry

, 2013
We have designed, constructed, and tested an InGaAs near-infrared camera to explore whether low-cost detectors can make small (≤1 m) telescopes capable of precise (
Simcoe, Robert A., Croll, Bryce J., Sullivan, Peter W.   +2 more
core   +1 more source