D. M. Grumm

JWST Calibration Pipeline

H. Bushouse, Jonathan Eisenhamer, Nadia Dencheva, J. Davies et autres

Breaking Changes Make wfss_contam expect the direct image to have a WCS object instead of the segmentation map (#9935) Drop support for datamodels without int_times table (#10042) Remove deprecated AmiAverageStep (deprecated since 1.18.1) (#10057) Fix a bug where accessing array-like attributes that …

An Algorithm to Mitigate Charge Migration Effects in Data from the Near Infrared Imager and Slitless Spectrograph on the James Webb Space Telescope*

Paul Goudfrooij, D. M. Grumm, Kevin Volk, H. Bushouse

Abstract We present an algorithm that mitigates the effects of charge migration due to the “brighter-fatter effect” (BFE) that occurs for highly illuminated stars in the Teledyne HAWAII-2RG detectors used in the NIRCam, NIRISS, and NIRSpec science instruments aboard the James Webb …

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An Algorithm to Mitigate Charge Migration Effects in Data from the Near Infrared Imager and Slitless Spectrograph on the James Webb Space Telescope

Paul Goudfrooij, D. M. Grumm, Kevin Volk, H. Bushouse

We present an algorithm that mitigates the effects of charge migration due to the "brighter-fatter effect'' (BFE) that occurs for highly illuminated stars in the Teledyne HAWAII-2RG detectors used in the NIRCam, NIRISS, and NIRSpec science instruments aboard the James Webb Space …

us (code pays fourni par la source)

The James Webb Space Telescope Mission

Jonathan P. Gardner, John C. Mather, R. Abbott, James S. Abell et autres

Abstract Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least 4 m. With the support of their …

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The James Webb Space Telescope Mission

Jonathan P. Gardner, John C. Mather, R. Abbott, James S. Abell et autres

Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least $4m$. With the support of their governments in …

Cosmic Ray Identification and Ramp-fitting in JWST Data

D. M. Grumm, P. Greenfield

Finesky -- removing higher order sky residuals

T. Dahlén, D. M. Grumm

We report on a new IRAF task called finesky that removes higher order sky residuals in NICMOS images by creating a masked median image of the observed sky. This median sky image is thereafter subtracted from the science images. A residual signal …

Correcting Background Streaks in HST Wide Field Planetary Camera 2 Data

D. M. Grumm, M. McMaster, Aparna Maybhate, M. Sirianni

CalTempFromBias: Implementation and Testing

Nor Pirzkal, D. M. Grumm, E. Bergeron

The NICMOS Legacy Recalibration and Reprocessing Initiative

Anton M. Koekemoer, Elizabeth Barker, L. E. Bergeron, T. Dahlén et autres

Correcting Background Streaks in WFPC2 Data

Aparna Maybhate, D. M. Grumm, M. McMaster, M. Sirianni

We present an algorithm designed to eliminate the horizontal streaks seen in WF4 images with low bias values. This is a stand-alone task and should be used after all other corrections for bias, dark, flat field and gain have been performed. The …

Calibration Software for the Kepler Mission

D. M. Grumm, Phil Hodge