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Impact of crosshatch patterns in H2RGs on high-precision radial velocity measurements: exploration of measurement and mitigation paths with the Habitable-Zone Planet Finder

Ninan, Joe P. and Mahadevan, Suvrath and Stefansson, Gudmundur and Bender, Chad and Roy, Arpita and Kaplan, Kyle F. and Fredrick, Connor and Metcalf, Andrew J. and Monson, Andrew and Terrien, Ryan and Ramsey, Lawrence W. and Diddams, Scott A. (2019) Impact of crosshatch patterns in H2RGs on high-precision radial velocity measurements: exploration of measurement and mitigation paths with the Habitable-Zone Planet Finder. Journal of Astronomical Telescopes, Instruments, and Systems, 5 (4). Art. No. 041511. ISSN 2329-4124. https://resolver.caltech.edu/CaltechAUTHORS:20191030-104512687

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Abstract

Teledyne’s H2RG detector images suffer from crosshatch like patterns, which arise from subpixel quantum efficiency (QE) variation. We present our measurements of this subpixel QE variation in the Habitable-Zone Planet Finder’s H2RG detector. We present a simple model to estimate the impact of subpixel QE variations on the radial velocity and how a first-order correction can be implemented to correct for the artifact in the spectrum. We also present how the HPF’s future upgraded laser frequency comb will enable us to implement this correction.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/1.JATIS.5.4.041511DOIArticle
ORCID:
AuthorORCID
Ninan, Joe P.0000-0001-8720-5612
Mahadevan, Suvrath0000-0001-9596-7983
Stefansson, Gudmundur0000-0001-7409-5688
Bender, Chad0000-0003-4384-7220
Roy, Arpita0000-0001-8127-5775
Kaplan, Kyle F.0000-0001-6909-3856
Fredrick, Connor0000-0002-0560-1433
Metcalf, Andrew J.0000-0001-5000-1018
Monson, Andrew0000-0002-0048-2586
Terrien, Ryan0000-0002-4788-8858
Diddams, Scott A.0000-0002-2144-0764
Additional Information:© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE). Paper 19038SS received Apr. 10, 2019; accepted for publication Oct. 8, 2019; published online Oct. 26, 2019. Authors thank organizers of ISPA-2018 for organizing a very informative and interactive workshop. 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 Pennsylvania State University, Eberly College of Science, and Pennsylvania Space Grant Consortium. We acknowledge support from NSF Grant Nos. AST1006676, AST1126413, AST1310885, and AST 1310875; and the NASA Astrobiology Institute (No. NNA09DA76A) in our pursuit of precision radial velocities in NIR, and support from the Heising-Simons Foundation. Computations for this research were performed on Pennsylvania State University’s Institute for Cyber-Science Advanced CyberInfrastructure (ICS-ACI). We thank the HET staff for their critical assistance, expertise and support. Data presented herein were obtained at the Hobby-Eberly Telescope (HET), a joint project of the University of Texas at Austin, Pennsylvania State University, Ludwig-Maximilians-Universität München, and Georg-August Universität Gottingen. The HET is named in honor of its principal benefactors, William P. Hobby and Robert E. Eberly. The HET collaboration acknowledges the support and resources from the Texas Advanced Computing Center. Software: astropy,9 numpy,10 scipy,11 matplotlib,12 CoCalc,13 Sympy.14 Disclosures: The authors declare that there are no known conflicts of interest. The mention of specific companies and trade names is for scientific and technical purposes only and does not constitute an endorsement by NIST.
Funders:
Funding AgencyGrant Number
Center for Exoplanet and Habitable WorldsUNSPECIFIED
Pennsylvania Space Grant ConsortiumUNSPECIFIED
NSFAST-1006676
NSFAST-1126413
NSFAST-1310885
NSFAST-1310875
NASANNA09DA76A
Heising-Simons FoundationUNSPECIFIED
Subject Keywords:HxRG; crosshatch; precision radial velocity; near-infrared; detectors
Issue or Number:4
Record Number:CaltechAUTHORS:20191030-104512687
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20191030-104512687
Official Citation:Joe P. Ninan, Suvrath Mahadevan, Gudmundur Stefansson, Chad Bender, Arpita Roy, Kyle F. Kaplan, Connor Fredrick, Andrew J. Metcalf, Andrew Monson, Ryan Terrien, Lawrence W. Ramsey, and Scott A. Diddams "Impact of crosshatch patterns in H2RGs on high-precision radial velocity measurements: exploration of measurement and mitigation paths with the Habitable-Zone Planet Finder," Journal of Astronomical Telescopes, Instruments, and Systems 5(4), 041511 (26 October 2019). https://doi.org/10.1117/1.JATIS.5.4.041511
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99558
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:30 Oct 2019 18:06
Last Modified:13 Dec 2019 03:33

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