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Inferred Measurements of the Zodiacal Light Absolute Intensity through Fraunhofer Absorption Line Spectroscopy with CIBER

Korngut, P. M. and Kim, M. G. and Arai, T. and Bangale, P. and Bock, J. and Cooray, A. and Cheng, Y. T. and Feder, R. and Hristov, V. and Lanz, A. and Lee, D. H. and Levenson, L. and Matsumoto, T. and Matsuura, S. and Nguyen, C. and Sano, K. and Tsumura, K. and Zemcov, M. (2022) Inferred Measurements of the Zodiacal Light Absolute Intensity through Fraunhofer Absorption Line Spectroscopy with CIBER. Astrophysical Journal, 926 (2). Art. No. 133. ISSN 0004-637X. doi:10.3847/1538-4357/ac44ff. https://resolver.caltech.edu/CaltechAUTHORS:20220222-707075000

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Abstract

Scattered sunlight from the interplanetary dust (IPD) cloud in our solar system presents a serious foreground challenge for spectrophotometric measurements of the extragalactic background light (EBL). In this work, we report on inferred measurements of the absolute intensity of the zodiacal light (ZL) using the novel technique of Fraunhofer line spectroscopy on the deepest 8542 Å line of the near-infrared Ca ii absorption triplet. The measurements are performed with the narrow band spectrometer (NBS) on board the Cosmic Infrared Background Experiment sounding rocket instrument. We use the NBS data to test the accuracy of two ZL models widely cited in the literature, the Kelsall and Wright models, which have been used in foreground removal analyses that produce high and low EBL results respectively. We find a mean reduced χ² = 3.5 for the Kelsall model and χ² = 2.0 for the Wright model. The best description of our data is provided by a simple modification to the Kelsall model, which includes a free ZL offset parameter. This adjusted model describes the data with a reduced χ² = 1.5 and yields an inferred offset amplitude of 46 ± 19 nW m⁻² sr⁻¹ extrapolated to 12500 Å. These measurements elude to the potential existence of a dust cloud component in the inner solar system whose intensity does not strongly modulate with the Earth’s motion around the Sun.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.3847/1538-4357/ac44ffDOIArticle
https://arxiv.org/abs/2104.07104arXivDiscussion Paper
ORCID:
AuthorORCID
Bangale, P.0000-0002-3886-3739
Bock, J.0000-0002-5710-5212
Cooray, A.0000-0002-3892-0190
Cheng, Y. T.0000-0002-5437-0504
Feder, R.0000-0002-9330-8738
Lanz, A.0000-0003-2565-1558
Matsumoto, T.0000-0001-6066-5221
Matsuura, S.0000-0002-5698-9634
Sano, K.0000-0002-6468-8532
Tsumura, K.0000-0001-7143-6520
Zemcov, M.0000-0001-8253-1451
Additional Information:© 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2021 March 31; revised 2021 November 18; accepted 2021 December 17; published 2022 February 18. The data presented here would not have been possible without the support of the NSROC staff at Wallops Flight Facility and White Sands Missile Range. Insight from Kalevi Mattila and Roland dePutter improved the quality of the manuscript. We thank Ned Wright for providing us with his model predictions and Leo Girardi for his star count code. P.K. and M.Z. acknowledge support from the NASA postdoctoral program. We would also like to thank the late Keith Lykke, whose work along with Steven Brown and Allan Smith on the calibration program made this work possible. We acknowledge the contributions of collaboration members working early in the project that were important to acquiring the data in this paper, including Ian Sullivan, Brian Keating, and Tom Renbarger. This work was supported by NASA APRA research grants NNX07AI54G, NNG05WC18G, NNX07AG43G, NNX07AJ24G, NNX10AE12G, and NNX16AJ69G. Initial support was provided by an award to J.B. from the Jet Propulsion Laboratory's Director's Research and Development Fund. Japanese participation in CIBER was supported by KAKENHI (20·34, 18204018, 19540250, 21340047, and 21111004) from Japan Society for the Promotion of Science (JSPS) and the Ministry of Education, Culture, Sports, Science and Technology (MEXT). Korean participation in CIBER was supported by the Pioneer Project from Korea Astronomy and Space Science Institute (KASI).
Group:Astronomy Department
Funders:
Funding AgencyGrant Number
NASANNX07AI54G
NASANNG05WC18G
NASANNX07AG43G
NASANNX07AJ24G
NASANNX10AE12G
NASANNX16AJ69G
JPL Research and Technology Development FundUNSPECIFIED
Japan Society for the Promotion of Science (JSPS)20·34
Japan Society for the Promotion of Science (JSPS)18204018
Japan Society for the Promotion of Science (JSPS)19540250
Japan Society for the Promotion of Science (JSPS)21340047
Japan Society for the Promotion of Science (JSPS)21111004
Ministry of Education, Culture, Sports, Science and Technology (MEXT)UNSPECIFIED
Korea Astronomy and Space Science Institute (KASI)UNSPECIFIED
Subject Keywords:Cosmology
Issue or Number:2
Classification Code:Unified Astronomy Thesaurus concepts: Cosmology (343)
DOI:10.3847/1538-4357/ac44ff
Record Number:CaltechAUTHORS:20220222-707121000
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220222-707075000
Official Citation:P. M. Korngut et al 2022 ApJ 926 133
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:113532
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:23 Feb 2022 02:07
Last Modified:23 Feb 2022 02:07

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