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arXiv · 2401.15142

PHANGS-JWST: Data Processing Pipeline and First Full Public Data Release

Thomas G. Williams·Janice C. Lee·Kirsten L. Larson·Adam K. Leroy·Karin Sandstrom·Eva Schinnerer·David A. Thilker·Francesco Belfiore·Oleg V. Egorov·Erik Rosolowsky·Jessica Sutter·Joseph DePasquale·Alyssa Pagan·Travis A. Berger·Gagandeep S. Anand·Ashley T. Barnes·Frank Bigiel·Médéric Boquien·Yixian Cao·Jérémy Chastenet·Mélanie Chevance·Ryan Chown·Daniel A. Dale·Sinan Deger·Cosima Eibensteiner·Eric Emsellem·Christopher M. Faesi·Simon C. O. Glover·Kathryn Grasha·Stephen Hannon·Hamid Hassani·Jonathan D. Henshaw·María J. Jiménez-Donaire·Jaeyeon Kim·Ralf S. Klessen·Eric W. Koch·Jing Li·Daizhong Liu·Sharon E. Meidt·J. Eduardo Méndez-Delgado·Eric J. Murphy·Justus Neumann·Lukas Neumann·Nadine Neumayer·Elias K. Oakes·Debosmita Pathak·Jérôme Pety·Francesca Pinna·Miguel Querejeta·Lise Ramambason·Andrea Romanelli·Mattia C. Sormani·Sophia K. Stuber·Jiayi Sun·Yu-Hsuan Teng·Antonio Usero·Elizabeth J. Watkins·Tony D. Weinbeck
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Abstract

The exquisite angular resolution and sensitivity of JWST is opening a new window for our understanding of the Universe. In nearby galaxies, JWST observations are revolutionizing our understanding of the first phases of star formation and the dusty interstellar medium. Nineteen local galaxies spanning a range of properties and morphologies across the star-forming main sequence have been observed as part of the PHANGS-JWST Cycle 1 Treasury program at spatial scales of $\sim$5-50pc. Here, we describe pjpipe, an image processing pipeline developed for the PHANGS-JWST program that wraps around and extends the official JWST pipeline. We release this pipeline to the community as it contains a number of tools generally useful for JWST NIRCam and MIRI observations. Particularly for extended sources, pjpipe products provide significant improvements over mosaics from the MAST archive in terms of removing instrumental noise in NIRCam data, background flux matching, and calibration of relative and absolute astrometry. We show that slightly smoothing F2100W MIRI data to 0.9" (degrading the resolution by about 30 percent) reduces the noise by a factor of $\approx$3. We also present the first public release (DR1.1.0) of the pjpipe processed eight-band 2-21 $\mu$m imaging for all nineteen galaxies in the PHANGS-JWST Cycle 1 Treasury program. An additional 55 galaxies will soon follow from a new PHANGS-JWST Cycle 2 Treasury program.

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Thomas G. Williams, Janice C. Lee, Kirsten L. Larson, Adam K. Leroy, Karin Sandstrom, Eva Schinnerer, David A. Thilker, Francesco Belfiore, Oleg V. Egorov, Erik Rosolowsky, Jessica Sutter, Joseph DePasquale, Alyssa Pagan, Travis A. Berger, Gagandeep S. Anand, Ashley T. Barnes, Frank Bigiel, Médéric Boquien, Yixian Cao, Jérémy Chastenet, Mélanie Chevance, Ryan Chown, Daniel A. Dale, Sinan Deger, Cosima Eibensteiner, Eric Emsellem, Christopher M. Faesi, Simon C. O. Glover, Kathryn Grasha, Stephen Hannon, Hamid Hassani, Jonathan D. Henshaw, María J. Jiménez-Donaire, Jaeyeon Kim, Ralf S. Klessen, Eric W. Koch, Jing Li, Daizhong Liu, Sharon E. Meidt, J. Eduardo Méndez-Delgado, Eric J. Murphy, Justus Neumann, Lukas Neumann, Nadine Neumayer, Elias K. Oakes, Debosmita Pathak, Jérôme Pety, Francesca Pinna, Miguel Querejeta, Lise Ramambason, Andrea Romanelli, Mattia C. Sormani, Sophia K. Stuber, Jiayi Sun, Yu-Hsuan Teng, Antonio Usero, Elizabeth J. Watkins, Tony D. Weinbeck. 2024-01-26. PHANGS-JWST: Data Processing Pipeline and First Full Public Data Release. https://arxiv.org/abs/2401.15142

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