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Studies of atmospheric noise on Mauna Kea at 143 GHz with Bolocam

Sayers, J. and Golwala, S. R. and Ade, P. A. R. and Aguirre, J. E. and Bock, J. J. and Edgington, S. F. and Glenn, J. and Goldin, A. and Haig, D. and Lange, A. E. and Laurent, G. T. and Mauskopf, P. D. and Nguyen, H. T. and Rossinot, P. (2008) Studies of atmospheric noise on Mauna Kea at 143 GHz with Bolocam. In: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV. Proceedings of SPIE. No.7020. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 70201Q. ISBN 9780819472304. https://resolver.caltech.edu/CaltechAUTHORS:20190318-142820927

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Abstract

We report measurements of the fluctuations in atmospheric emission (atmospheric noise) above Mauna Kea recorded with Bolocam at 143 GHz. These data were collected in November and December of 2003 with Bolocam mounted on the Caltech Submillimeter Observatory (CSO), and span approximately 40 nights. Below ≃ 0.5 Hz, the data time-streams are dominated by the f-δ atmospheric noise in all observing conditions. We were able to successfully model the atmospheric fluctuations using a Kolmogorov-Taylor turbulence model for a thin wind-driven screen in approximately half of our data. Based on this modeling, we developed several algorithms to remove the atmospheric noise, and the best results were achieved when we described the fluctuations using a low-order polynomial in detector position over the 8 arcminute focal plane. However, even with these algorithms, we were not able to reach photon-background-limited instrument photometer (BLIP) performance at frequencies below ≃ 0.5 Hz in any observing conditions. Therefore, we conclude that BLIP performance is not possible from the CSO below ≃ 0.5 Hz for broadband 150 GHz receivers with subtraction of a spatial atmospheric template on scales of several arcminutes.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.790029DOIArticle
ORCID:
AuthorORCID
Golwala, S. R.0000-0002-1098-7174
Ade, P. A. R.0000-0002-5127-0401
Additional Information:© 2008 Society of Photo-optical Instrumentation Engineers (SPIE).
Subject Keywords:atmospheric noise, ground-based instrumentation, water vapor, Bolocam
Series Name:Proceedings of SPIE
Issue or Number:7020
Record Number:CaltechAUTHORS:20190318-142820927
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190318-142820927
Official Citation:J. Sayers, S. R. Golwala, P. A. R. Ade, J. E. Aguirre, J. J. Bock, S. F. Edgington, J. Glenn, A. Goldin, D. Haig, A. E. Lange, G. T. Laurent, P. D. Mauskopf, H. T. Nguyen, and P. Rossinot "Studies of atmospheric noise on Mauna Kea at 143 GHz with Bolocam", Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70201Q (21 July 2008); doi: 10.1117/12.790029; https://doi.org/10.1117/12.790029
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93938
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Mar 2019 22:55
Last Modified:03 Oct 2019 20:59

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