Results 101 to 110 of about 476,629 (275)
, 2011 Observations at mas-resolution scales and high dynamic range hold a central place in achieving, for instance, the spectroscopic characterization of exo-Earths or the detailed mapping of their protoplanetary disc birthplace.
Anheier, Norman C. +6 more
core +2 more sources
Optical Multicolor Photometry of Spectrophotometric Standard Stars
The Astronomical Journal, 2007 76 pages, 48 figures - published version available here: http://www.journals.uchicago.edu/AJ/journal/issues/v133n3/205588/205588.html .
Arlo U. Landolt +4 more
openaire +3 more sources
Precision of a Low-Cost InGaAs Detector for Near Infrared Photometry [PDF]
, 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 (<1 mmag) infrared photometry of relatively bright targets. The camera is constructed around the 640x512 pixel APS640C sensor built by FLIR Electro-Optical Components.
arxiv +1 more source
Luminous Red Galaxies: Selection and classification by combining optical and infrared photometry [PDF]
ApJ 803 105 (2015), 2015 We describe a new method of combining optical and infrared photometry to select Luminous Red Galaxies (LRGs) at redshifts $z > 0.6$. We explore this technique using a combination of optical photometry from CFHTLS and HST, infrared photometry from the WISE satellite, and spectroscopic or photometric redshifts from the DEEP2 Galaxy Redshift Survey or ...
arxiv +1 more source
On the use of asymmetric PSF on NIR images of crowded stellar fields
, 2014 We present data collected using the camera PISCES coupled with the Firt Light Adaptive Optics (FLAO) mounted at the Large Binocular Telescope (LBT).
Arcidiacono, Carmelo +10 more
core +1 more source
The InfraRed Imaging Spectrograph (IRIS) for TMT: photometric precision and ghost analysis [PDF]
, 2018 The InfraRed Imaging Spectrograph (IRIS) is a first-light instrument for the Thirty Meter Telescope (TMT) that will be used to sample the corrected adaptive optics field by NFIRAOS with a near-infrared (0.8 - 2.4 $\mu$m) imaging camera and Integral Field
Chapin, Edward L. +13 more
core +3 more sources
ChemSusChem, EarlyView.Nickel modified titanium doped hematite photoanode shows a selective hole scavenging for the photoelectrochemical valorisation of the biomass derivative HMF to FDCA, overcoming the competition with water oxidation. Insights on the role of nickel in the HMF oxidation process are achieved with operando x‐ray absorption spectroscopy via element‐selective ...
Irene Carrai +8 more
wiley +1 more source
Impact of optical aberrations on axial position determination by photometry
Nature Methods, 2018 ImPhys/Imaging ...
Rasmus Ø. Thorsen +5 more
openaire +7 more sources
Multiwavelength spectral and high time resolution observations of SWIFT J1753.5-0127: new activity? [PDF]
, 2008 We have conducted an extensive observational campaign of SWIFT J1753.5-0127 during June 2007 after its bright outburst episode in 2005. We have performed multi-band optical photometry, optical spectroscopy, X-ray spectroscopy and timing and ULTRACAM optical photometry simultaneously in three bands.
arxiv +1 more source
The Asymptotic Giant Branch and the Tip of the Red Giant Branch as Probes of Star Formation History: The Nearby Dwarf Irregular Galaxy KKH 98 [PDF]
, 2010 We investigate the utility of the asymptotic giant branch (AGB) and the red giant branch (RGB) as probes of the star formation history (SFH) of the nearby (D=2.5 Mpc) dwarf irregular galaxy, KKH 98.
Ammons, S. M. +7 more
core +2 more sources