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Techniques and Review of Absolute Flux Calibration from the Ultraviolet to the Mid-Infrared

Gordon, Karl D.; Tremblay, P. -E.; Bohlin, Ralph C.

The measurement of precise absolute fluxes for stellar sources has been pursued with increased vigor since the discovery of the dark energy and the realization that its detailed understanding requires accurate spectral energy distributions (SEDs) of redshifted Ia supernovae in the rest frame. The flux distributions of spectrophotometric standard s…

GALFIT-CORSAIR: Implementing the Core-Sérsic Model Into GALFIT

Bonfini, Paolo

We introduce GALFIT-CORSAIR: a publicly available, fully retro-compatible modification of the 2D fitting software GALFIT (v.3) which adds an implementation of the core-Sersic model. We demonstrate the software by fitting the images of NGC 5557 and NGC 5813, which have been previously identified as core-Sersic galaxies by their 1D radial light prof…

Quantitative Method for the Optimal Subtraction of Continuum Emission from Narrow-band Images: Skewness Transition Analysis

Dickinson, Mark; Calzetti, Daniela; Hong, Sungryong

We present an objective method to remove the stellar continuum emission from narrow-band images to derive emission-line images. The method is based on the skewness of the pixel histogram of the residual images. Specifically, we exploit a transition in the skewness of the signal in the continuum-subtracted image, which appears when the image change…

Reconstruction of High Dynamic Range Images: Simulations of LBT Observations of a Stellar Jet, a Pathfinder Study for Future AO-Assisted Giant Telescopes

Arcidiacono, C.; Lorenzetti, D.; Nisini, B. +4 more

High-Resolution Optical Spectroscopy of the R Coronae Borealis Star V532 Ophiuchi at Maximum Light

Lambert, David L.; Kameswara Rao, N.; Hema, B. P. +1 more

Not Available

Based on observations obtained with the Harlan J. Smith Telescope of McDonald Observatory of the University of Texas at Austin.

Improving LSST Photometric Calibration with Gaia Data

Axelrod, Tim; Miller, Calder

We consider the possibility that the Gaia mission can supply data which will improve the photometric calibration of LSST. After outlining the LSST calibra- tion process and the information that will be available from Gaia, we explore two options for using Gaia data. The first is to use Gaia G-band photometry of selected stars, in conjunction with …

A Search for Mass Loss from Metal-Poor Field Red Giants using Data from the WISE and AKARI Satellites

Smith, Graeme H.; Bashay, Edward A.