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Habitable-Zone Planet Finder: improved flux image generation algorithms for H2RG up-the-ramp data

Ninan, J. P. and Bender, Chad F. and Mahadevan, Suvrath and Ford, Eric B. and Monson, Andrew J. and Kaplan, Kyle F. and Terrien, Ryan C. and Roy, Arpita and Robertson, Paul M. and Kanodia, Shubham and Stefansson, Gudmundur K. (2018) Habitable-Zone Planet Finder: improved flux image generation algorithms for H2RG up-the-ramp data. In: High Energy, Optical, and Infrared Detectors for Astronomy VIII. Proceedings of SPIE. No.10709. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 107092U . ISBN 9781510619715.

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Noise and stability of current state of the art near-infrared (NIR) array detectors are still substantially worse than optical science grade CCDs used in astronomy. Obtaining the maximum signal-to-noise ratio in flux image is important for many NIR instruments, as is stable well understood data reduction and extraction. The Habitable- zone Planet Finder (HPF) is a near-infrared ultra stable precision radial velocity (RV) spectrograph commissioned on 10-m Hobby-Eberly Telescope (HET), McDonald Observatory, Texas, USA. HPF uses a Teledyne H2RG array detector. In order to achieve the high-precision (~ 1 m/s) RV measurements from the NIR spectrum of HPF's science target stars, it is vital to maximize the signal-to-noise ratio and to accurately propagate the uncertainties. Here we present the algorithms we have developed to significantly improve the quality of flux images calculated from the up-the-ramp readout mode of H2RG. The algorithms in the tool HxRGproc presented in this manuscript are used for HPF's bias noise removal, non-linearity correction, cosmic ray correction, slope/flux and variance image calculation.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Ninan, J. P.0000-0001-8720-5612
Bender, Chad F.0000-0003-4384-7220
Mahadevan, Suvrath0000-0001-9596-7983
Ford, Eric B.0000-0001-6545-639X
Monson, Andrew J.0000-0002-0048-2586
Kaplan, Kyle F.0000-0001-6909-3856
Terrien, Ryan C.0000-0002-4788-8858
Roy, Arpita0000-0001-8127-5775
Kanodia, Shubham0000-0001-8401-4300
Stefansson, Gudmundur K.0000-0001-7409-5688
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was partially supported by the funding from The Center for Exoplanet and Habitable Worlds. The Center for Exoplanet and Habitable Worlds is supported by The Pennsylvania State University, The Eberly College of Science, and The Pennsylvania Space Grant Consortium. We acknowledge support from NSF grants, AST1006676, AST1126413, AST1310885, and the NASA Astrobiology Institute (NNA09DA76A) in our pursuit of precision radial velocities in NIR, and support from the Heising-Simons Foundation. Computations for this research were performed on the Pennsylvania State Universitys Institute for CyberScience Advanced CyberIn-frastructure (ICS-ACI).
Funding AgencyGrant Number
Center for Exoplanets and Habitable WorldsUNSPECIFIED
Eberly College of ScienceUNSPECIFIED
Pennsylvania State UniversityUNSPECIFIED
Pennsylvania Space Grant ConsortiumUNSPECIFIED
Heising-Simons FoundationUNSPECIFIED
Subject Keywords:H2RG NIR detector, HxRGproc, Up-the-ramp image processing, Algorithms, Precision RV
Series Name:Proceedings of SPIE
Issue or Number:10709
Record Number:CaltechAUTHORS:20181207-083716755
Persistent URL:
Official Citation:J. P. Ninan, Chad F. Bender, Suvrath Mahadevan, Eric B. Ford, Andrew J. Monson, Kyle F. Kaplan, Ryan C. Terrien, Arpita Roy, Paul M. Robertson, Shubham Kanodia, Gudmundur K. Stefansson, "The Habitable-Zone Planet Finder: improved flux image generation algorithms for H2RG up-the-ramp data," Proc. SPIE 10709, High Energy, Optical, and Infrared Detectors for Astronomy VIII, 107092U (2 August 2018); doi: 10.1117/12.2312787
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91557
Deposited By: George Porter
Deposited On:08 Dec 2018 00:06
Last Modified:16 Nov 2021 03:42

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