Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope
We present the first measurements of asteroids in millimeter wavelength data from the South Pole Telescope (SPT), which is used primarily to study the cosmic microwave background (CMB). We analyze maps of two ∼270 deg² sky regions near the ecliptic plane, each observed with the SPTpol camera ∼1...
Published in: | The Astrophysical Journal |
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Format: | Article in Journal/Newspaper |
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American Astronomical Society
2022
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Online Access: | https://doi.org/10.3847/1538-4357/ac89ec |
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Open Polar |
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Caltech Authors (California Institute of Technology) |
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Space and Planetary Science Astronomy and Astrophysics |
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Space and Planetary Science Astronomy and Astrophysics Chichura, P. M. Foster, A. Patel, C. Ossa-Jaen, N. Ade, P. A. R. Ahmed, Z. Anderson, A. J. Archipley, M. Austermann, J. E. Avva, J. S. Balkenhol, L. Barry, P. S. Thakur, R. Basu Beall, J. A. Benabed, K. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Bouchet, F. R. Bryant, L. Byrum, K. Carlstrom, J. E. Carter, F. W. Cecil, T. W. Chang, C. L. Chaubal, P. Chen, G. Chiang, H. C. Cho, H.-M. Chou, T-L. Citron, R. Cliche, J.-F. Crawford, T. M. Crites, A. T. Cukierman, A. Daley, C. M. Denison, E. V. Dibert, K. Ding, J. Dobbs, M. A. Dutcher, D. Everett, W. Feng, C. Ferguson, K. R. Fu, J. Galli, S. Gallicchio, J. Gambrel, A. E. Gardner, R. W. George, E. M. Goeckner-Wald, N. Gualtieri, R. Guns, S. Gupta, N. Guyser, R. Haan, T. de Halverson, N. W. Harke-Hosemann, A. H. Harrington, N. L. Henning, J. W. Hilton, G. C. Hivon, E. Holder, G. P. Holzapfel, W. L. Hood, J. C. Howe, D. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Jeong, O. B. Jonas, M. Jones, A. Khaire, T. S. Knox, L. Kofman, A. M. Korman, M. Kubik, D. L. Kuhlmann, S. Kuo, C.-L. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Lu, C. Marrone, D. P. McMahon, J. J. Meyer, S. S. Michalik, D. Millea, M. Mocanu, L. M. Montgomery, J. Moran, C. Corbett Nadolski, A. Natoli, T. Nguyen, H. Nibarger, J. P. Noble, G. Novosad, V. Omori, Y. Padin, S. Pan, Z. Paschos, P. Patil, S. Pearson, J. Phadke, K. A. Posada, C. M. Prabhu, K. Pryke, C. Quan, W. Rahlin, A. Reichardt, C. L. Riebel, D. Riedel, B. Rouble, M. Ruhl, J. E. Saliwanchik, B. R. Sayre, J. T. Schaffer, K. K. Schiappucci, E. Shirokoff, E. Sievers, C. Smecher, G. Sobrin, J. A. Springmann, A. Stark, A. A. Stephen, J. Story, K. T. Suzuki, A. Tandoi, C. Thompson, K. L. Thorne, B. Tucker, C. Umilta, C. Vale, L. R. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. Yoon, K. W. Young, M. R. Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope |
topic_facet |
Space and Planetary Science Astronomy and Astrophysics |
description |
We present the first measurements of asteroids in millimeter wavelength data from the South Pole Telescope (SPT), which is used primarily to study the cosmic microwave background (CMB). We analyze maps of two ∼270 deg² sky regions near the ecliptic plane, each observed with the SPTpol camera ∼100 times over 1 month. We subtract the mean of all maps of a given field, removing static sky signal, and then average the mean-subtracted maps at known asteroid locations. We detect three asteroids -- (324) Bamberga, (13) Egeria, and (22) Kalliope -- with signal-to-noise ratios (S/N) of 11.2, 10.4, and 6.1, respectively, at 2.0 mm (150 GHz); we also detect (324) Bamberga with an S/N of 4.1 at 3.2 mm (95 GHz). We place constraints on these asteroids' effective emissivities, brightness temperatures, and light-curve modulation amplitude. Our flux density measurements of (324) Bamberga and (13) Egeria roughly agree with predictions, while our measurements of (22) Kalliope suggest lower flux, corresponding to effective emissivities of 0.64 ± 0.11 at 2.0 and < 0.47 at 3.2 mm. We predict the asteroids detectable in other SPT data sets and find good agreement with detections of (772) Tanete and (1093) Freda in recent data from the SPT-3G camera, which has ∼10× the mapping speed of SPTpol. This work is the first focused analysis of asteroids in data from CMB surveys, and it demonstrates we can repurpose historic and future data sets for asteroid studies. Future SPT measurements can help constrain the distribution of surface properties over a larger asteroid population. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2011.0.00001.CAL. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This publication also makes use of data products from NEOWISE, which is a project of the Jet ... |
format |
Article in Journal/Newspaper |
author |
Chichura, P. M. Foster, A. Patel, C. Ossa-Jaen, N. Ade, P. A. R. Ahmed, Z. Anderson, A. J. Archipley, M. Austermann, J. E. Avva, J. S. Balkenhol, L. Barry, P. S. Thakur, R. Basu Beall, J. A. Benabed, K. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Bouchet, F. R. Bryant, L. Byrum, K. Carlstrom, J. E. Carter, F. W. Cecil, T. W. Chang, C. L. Chaubal, P. Chen, G. Chiang, H. C. Cho, H.-M. Chou, T-L. Citron, R. Cliche, J.-F. Crawford, T. M. Crites, A. T. Cukierman, A. Daley, C. M. Denison, E. V. Dibert, K. Ding, J. Dobbs, M. A. Dutcher, D. Everett, W. Feng, C. Ferguson, K. R. Fu, J. Galli, S. Gallicchio, J. Gambrel, A. E. Gardner, R. W. George, E. M. Goeckner-Wald, N. Gualtieri, R. Guns, S. Gupta, N. Guyser, R. Haan, T. de Halverson, N. W. Harke-Hosemann, A. H. Harrington, N. L. Henning, J. W. Hilton, G. C. Hivon, E. Holder, G. P. Holzapfel, W. L. Hood, J. C. Howe, D. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Jeong, O. B. Jonas, M. Jones, A. Khaire, T. S. Knox, L. Kofman, A. M. Korman, M. Kubik, D. L. Kuhlmann, S. Kuo, C.-L. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Lu, C. Marrone, D. P. McMahon, J. J. Meyer, S. S. Michalik, D. Millea, M. Mocanu, L. M. Montgomery, J. Moran, C. Corbett Nadolski, A. Natoli, T. Nguyen, H. Nibarger, J. P. Noble, G. Novosad, V. Omori, Y. Padin, S. Pan, Z. Paschos, P. Patil, S. Pearson, J. Phadke, K. A. Posada, C. M. Prabhu, K. Pryke, C. Quan, W. Rahlin, A. Reichardt, C. L. Riebel, D. Riedel, B. Rouble, M. Ruhl, J. E. Saliwanchik, B. R. Sayre, J. T. Schaffer, K. K. Schiappucci, E. Shirokoff, E. Sievers, C. Smecher, G. Sobrin, J. A. Springmann, A. Stark, A. A. Stephen, J. Story, K. T. Suzuki, A. Tandoi, C. Thompson, K. L. Thorne, B. Tucker, C. Umilta, C. Vale, L. R. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. Yoon, K. W. Young, M. R. |
author_facet |
Chichura, P. M. Foster, A. Patel, C. Ossa-Jaen, N. Ade, P. A. R. Ahmed, Z. Anderson, A. J. Archipley, M. Austermann, J. E. Avva, J. S. Balkenhol, L. Barry, P. S. Thakur, R. Basu Beall, J. A. Benabed, K. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Bouchet, F. R. Bryant, L. Byrum, K. Carlstrom, J. E. Carter, F. W. Cecil, T. W. Chang, C. L. Chaubal, P. Chen, G. Chiang, H. C. Cho, H.-M. Chou, T-L. Citron, R. Cliche, J.-F. Crawford, T. M. Crites, A. T. Cukierman, A. Daley, C. M. Denison, E. V. Dibert, K. Ding, J. Dobbs, M. A. Dutcher, D. Everett, W. Feng, C. Ferguson, K. R. Fu, J. Galli, S. Gallicchio, J. Gambrel, A. E. Gardner, R. W. George, E. M. Goeckner-Wald, N. Gualtieri, R. Guns, S. Gupta, N. Guyser, R. Haan, T. de Halverson, N. W. Harke-Hosemann, A. H. Harrington, N. L. Henning, J. W. Hilton, G. C. Hivon, E. Holder, G. P. Holzapfel, W. L. Hood, J. C. Howe, D. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Jeong, O. B. Jonas, M. Jones, A. Khaire, T. S. Knox, L. Kofman, A. M. Korman, M. Kubik, D. L. Kuhlmann, S. Kuo, C.-L. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Lu, C. Marrone, D. P. McMahon, J. J. Meyer, S. S. Michalik, D. Millea, M. Mocanu, L. M. Montgomery, J. Moran, C. Corbett Nadolski, A. Natoli, T. Nguyen, H. Nibarger, J. P. Noble, G. Novosad, V. Omori, Y. Padin, S. Pan, Z. Paschos, P. Patil, S. Pearson, J. Phadke, K. A. Posada, C. M. Prabhu, K. Pryke, C. Quan, W. Rahlin, A. Reichardt, C. L. Riebel, D. Riedel, B. Rouble, M. Ruhl, J. E. Saliwanchik, B. R. Sayre, J. T. Schaffer, K. K. Schiappucci, E. Shirokoff, E. Sievers, C. Smecher, G. Sobrin, J. A. Springmann, A. Stark, A. A. Stephen, J. Story, K. T. Suzuki, A. Tandoi, C. Thompson, K. L. Thorne, B. Tucker, C. Umilta, C. Vale, L. R. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. Yoon, K. W. Young, M. R. |
author_sort |
Chichura, P. M. |
title |
Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope |
title_short |
Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope |
title_full |
Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope |
title_fullStr |
Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope |
title_full_unstemmed |
Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope |
title_sort |
asteroid measurements at millimeter wavelengths with the south pole telescope |
publisher |
American Astronomical Society |
publishDate |
2022 |
url |
https://doi.org/10.3847/1538-4357/ac89ec |
geographic |
Canada South Pole |
geographic_facet |
Canada South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Astrophysical Journal, 936(2), 173, (2022-09-01) |
op_relation |
https://doi.org/10.3847/1538-4357/ac89ec oai:authors.library.caltech.edu:8qk0m-h0t36 eprintid:117116 resolverid:CaltechAUTHORS:20220922-931611600.14 |
op_rights |
info:eu-repo/semantics/closedAccess Other |
op_doi |
https://doi.org/10.3847/1538-4357/ac89ec |
container_title |
The Astrophysical Journal |
container_volume |
936 |
container_issue |
2 |
container_start_page |
173 |
_version_ |
1802650183087947776 |
spelling |
ftcaltechauth:oai:authors.library.caltech.edu:8qk0m-h0t36 2024-06-23T07:56:50+00:00 Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope Chichura, P. M. Foster, A. Patel, C. Ossa-Jaen, N. Ade, P. A. R. Ahmed, Z. Anderson, A. J. Archipley, M. Austermann, J. E. Avva, J. S. Balkenhol, L. Barry, P. S. Thakur, R. Basu Beall, J. A. Benabed, K. Bender, A. N. Benson, B. A. Bianchini, F. Bleem, L. E. Bouchet, F. R. Bryant, L. Byrum, K. Carlstrom, J. E. Carter, F. W. Cecil, T. W. Chang, C. L. Chaubal, P. Chen, G. Chiang, H. C. Cho, H.-M. Chou, T-L. Citron, R. Cliche, J.-F. Crawford, T. M. Crites, A. T. Cukierman, A. Daley, C. M. Denison, E. V. Dibert, K. Ding, J. Dobbs, M. A. Dutcher, D. Everett, W. Feng, C. Ferguson, K. R. Fu, J. Galli, S. Gallicchio, J. Gambrel, A. E. Gardner, R. W. George, E. M. Goeckner-Wald, N. Gualtieri, R. Guns, S. Gupta, N. Guyser, R. Haan, T. de Halverson, N. W. Harke-Hosemann, A. H. Harrington, N. L. Henning, J. W. Hilton, G. C. Hivon, E. Holder, G. P. Holzapfel, W. L. Hood, J. C. Howe, D. Hrubes, J. D. Huang, N. Hubmayr, J. Irwin, K. D. Jeong, O. B. Jonas, M. Jones, A. Khaire, T. S. Knox, L. Kofman, A. M. Korman, M. Kubik, D. L. Kuhlmann, S. Kuo, C.-L. Lee, A. T. Leitch, E. M. Li, D. Lowitz, A. Lu, C. Marrone, D. P. McMahon, J. J. Meyer, S. S. Michalik, D. Millea, M. Mocanu, L. M. Montgomery, J. Moran, C. Corbett Nadolski, A. Natoli, T. Nguyen, H. Nibarger, J. P. Noble, G. Novosad, V. Omori, Y. Padin, S. Pan, Z. Paschos, P. Patil, S. Pearson, J. Phadke, K. A. Posada, C. M. Prabhu, K. Pryke, C. Quan, W. Rahlin, A. Reichardt, C. L. Riebel, D. Riedel, B. Rouble, M. Ruhl, J. E. Saliwanchik, B. R. Sayre, J. T. Schaffer, K. K. Schiappucci, E. Shirokoff, E. Sievers, C. Smecher, G. Sobrin, J. A. Springmann, A. Stark, A. A. Stephen, J. Story, K. T. Suzuki, A. Tandoi, C. Thompson, K. L. Thorne, B. Tucker, C. Umilta, C. Vale, L. R. Veach, T. Vieira, J. D. Wang, G. Whitehorn, N. Wu, W. L. K. Yefremenko, V. Yoon, K. W. Young, M. R. 2022-09-01 https://doi.org/10.3847/1538-4357/ac89ec unknown American Astronomical Society https://doi.org/10.3847/1538-4357/ac89ec oai:authors.library.caltech.edu:8qk0m-h0t36 eprintid:117116 resolverid:CaltechAUTHORS:20220922-931611600.14 info:eu-repo/semantics/closedAccess Other Astrophysical Journal, 936(2), 173, (2022-09-01) Space and Planetary Science Astronomy and Astrophysics info:eu-repo/semantics/article 2022 ftcaltechauth https://doi.org/10.3847/1538-4357/ac89ec 2024-06-12T06:19:42Z We present the first measurements of asteroids in millimeter wavelength data from the South Pole Telescope (SPT), which is used primarily to study the cosmic microwave background (CMB). We analyze maps of two ∼270 deg² sky regions near the ecliptic plane, each observed with the SPTpol camera ∼100 times over 1 month. We subtract the mean of all maps of a given field, removing static sky signal, and then average the mean-subtracted maps at known asteroid locations. We detect three asteroids -- (324) Bamberga, (13) Egeria, and (22) Kalliope -- with signal-to-noise ratios (S/N) of 11.2, 10.4, and 6.1, respectively, at 2.0 mm (150 GHz); we also detect (324) Bamberga with an S/N of 4.1 at 3.2 mm (95 GHz). We place constraints on these asteroids' effective emissivities, brightness temperatures, and light-curve modulation amplitude. Our flux density measurements of (324) Bamberga and (13) Egeria roughly agree with predictions, while our measurements of (22) Kalliope suggest lower flux, corresponding to effective emissivities of 0.64 ± 0.11 at 2.0 and < 0.47 at 3.2 mm. We predict the asteroids detectable in other SPT data sets and find good agreement with detections of (772) Tanete and (1093) Freda in recent data from the SPT-3G camera, which has ∼10× the mapping speed of SPTpol. This work is the first focused analysis of asteroids in data from CMB surveys, and it demonstrates we can repurpose historic and future data sets for asteroid studies. Future SPT measurements can help constrain the distribution of surface properties over a larger asteroid population. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2011.0.00001.CAL. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This publication also makes use of data products from NEOWISE, which is a project of the Jet ... Article in Journal/Newspaper South pole Caltech Authors (California Institute of Technology) Canada South Pole The Astrophysical Journal 936 2 173 |