Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope

Chichura, Paul; Foster, A.; Patel, C.; Ossa-Jaen, N.; Ade, Peter A. R.; Ahmed, Zeeshan; Anderson, A. J.; Archipley, Melanie; Austermann, J. E.; Avva, J. S.; Balkenhol, L.; Barry, P. S.; Thakur, R. Basu; Beall, James A.; Benabed, K.; Bender, A. N.; Benson, B. A.; Bianchini, F.; Bleem, L. E.; Bouchet, F. R.; Bryant, Lincoln; Byrum, K.; Carlstrom, J. E.; W., Carter, F.; 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.; Denison, Edward V.; Dibert, K.; Ding, J.; Dobbs, M.; Dutcher, D.; Everett, W.; Feng, Chang; Ferguson, K. R.; Fu, Jianyang; Galli, S.; Gallicchio, Jason; 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, Andrew; Khaire, T. S.; Knox, L.; Kofman, Anna M.; Korman, M.; Kubik, D. L.; Kuhlmann, S.; Kuo, C.-L.; T., Lee, A.; Leitch, E. M.; Li, D.; Lowitz, A. E.; Lu, C.; Marrone, Daniel P.; McMahon, Jeff; Meyer, S. S.; Michalik, D.; Millea, M.; Mocanu, L. M.; Montgomery, J.; Moran, C. Corbett; Nadolski, A.; Natoli, T.; Nguyen, H. T.; Nibarger, J. P.; Noble, G. I.; Novosad, V.; Omori, Y.; Padin, S.; Pan, Z.; Paschos, Pascal; Patil, S.; Pearson, John E.; Phadke, Kedar A.; Posada, C. M.; Prabhu, K.; Pryke, C.; Quan, Wei; Rahlin, A.; Reichardt, Christian; Riebel, D.; Riedel, Benedikt; 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, Aritoki; Tandoi, C.; Thompson, K. L.; Thorne, Ben; Tucker, C.; Umiltà, Caterina; Vale, L. R.; Veach, Todd; Vieira, J. D.; Wang, G.; Whitehorn, N.; Wu, W. L. K.; Yefremenko, V.; Yoon, K. W.; Young, M. R.

doi:10.3847/1538-4357/ac89ec

Cited by 5 publications

(3 citation statements)

References 55 publications

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“…Recently, the South Pole Telescope (SPT; Carlstrom et al 2011) team reported flux measurements for a trio of main-belt asteroids (Chichura et al 2022). For two of the three asteroids they detected, the flux measurements were consistent with predictions derived from WISE observations of unitary emissivity; for the third, the measured emissivity was ò = 0.64 ± 0.11.…”

Section: Introductionmentioning

confidence: 54%

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The Atacama Cosmology Telescope: Millimeter Observations of a Population of Asteroids or: ACTeroids

Orlowski-Scherer,

Venterea,

Battaglia

et al. 2024

ApJ

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We present fluxes and light curves for a population of asteroids at millimeter wavelengths, detected by the Atacama Cosmology Telescope (ACT) over 18,000 deg2 of the sky using data from 2017 to 2021. We utilize high cadence maps, which can be used in searching for moving objects such as asteroids and trans-Neptunian Objects, as well as for studying transients. We detect 170 asteroids with a signal-to-noise of at least 5 in at least one of the ACT observing bands, which are centered near 90, 150, and 220 GHz. For each asteroid, we compare the ACT measured flux to predicted fluxes from the near-Earth asteroid thermal model fit to WISE data. We confirm previous results that detected a deficit of flux at millimeter wavelengths. Moreover, we report a spectral characteristic to this deficit, such that the flux is relatively lower at 150 and 220 GHz than at 90 GHz. Additionally, we find that the deficit in flux is greater for S-type asteroids than for C-type.

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Section: Introductionmentioning

confidence: 54%

“…We directly compare our observations of (324) Bamberga, (13) Egeria, and (22) Kalliope to those made by SPT in Chichura et al (2022), specifically to the effective emissivity listed in Table 1 of that paper. We present the comparison in Table 2.…”

Section: Sptmentioning

confidence: 99%

The Atacama Cosmology Telescope: Millimeter Observations of a Population of Asteroids or: ACTeroids

Orlowski-Scherer,

Venterea,

Battaglia

et al. 2024

ApJ

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“…In the case of amateur astronomers, they can perform calculations and re-analyze the orbit of an asteroid or comet to inspect whether or not a close encounter or even a collision is possible. Furthermore, we can understand in depth whether these small objects are dangerous or not from their ephemeris that can be obtained from observations (Chichura et al, 2022). This article will explain step-by-step how to determine the orbit of an asteroid and the potential danger it has, with the object as the case is asteroid Apophis.…”

Section: Introductionmentioning

confidence: 99%

Look Up (Again) The Apophis Asteroid: Simulating and Visualizing Orbit

Asmoro,

Utama,

Sondana

2023

tjp

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The asteroid Apophis, first discovered in 2004 by American astronomers, is known to have a dangerous potential for planet Earth. Many early studies predict that in 2029 it will experience a close encounter and have a possible collision with the Earth at the next close encounter due to keyhole gravity. This research will explain how to carry out an orbit simulation using an orbit integrator to review this possibility and the evolution of the Apophis asteroid orbit over the next 500 years. The results of this study are expected to provide an understanding of simulating asteroid orbit from its orbital parameters and to build awareness of the threat of danger from small solar system objects such as asteroids, comets, and meteoroids.

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Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Probing the transient and time-variable sky

Orlowski-Scherer,

Maccarone,

Bright

et al. 2024

Open Res Europe

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The study of transient and variable events, including novae, active galactic nuclei, and black hole binaries, has historically been a fruitful path for elucidating the evolutionary mechanisms of our universe. The study of such events in the millimeter and submillimeter is, however, still in its infancy. Submillimeter observations probe a variety of materials, such as optically thick dust, which are hard to study in other wavelengths. Submillimeter observations are sensitive to a number of emission mechanisms, from the aforementioned cold dust, to hot free-free emission, and synchrotron emission from energetic particles. Study of these phenomena has been hampered by a lack of prompt, high sensitivity submillimeter follow-up, as well as by a lack of high-sky-coverage submillimeter surveys. In this paper, we describe how the proposed Atacama Large Aperture Submillimeter Telescope (AtLAST) could fill in these gaps in our understanding of the transient universe. We discuss a number of science cases that would benefit from AtLAST observations, and detail how AtLAST is uniquely suited to contributing to them. In particular, AtLAST’s large field of view will enable serendipitous detections of transient events, while its anticipated ability to get on source quickly and observe simultaneously in multiple bands make it also ideally suited for transient follow-up. We make theoretical predictions for the instrumental and observatory properties required to significantly contribute to these science cases, and compare them to the projected AtLAST capabilities. Finally, we consider the unique ways in which transient science cases constrain the observational strategies of AtLAST, and make prescriptions for how AtLAST should observe in order to maximize its transient science output without impinging on other science cases.

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Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope

Cited by 5 publications

References 55 publications

The Atacama Cosmology Telescope: Millimeter Observations of a Population of Asteroids or: ACTeroids

The Atacama Cosmology Telescope: Millimeter Observations of a Population of Asteroids or: ACTeroids

Look Up (Again) The Apophis Asteroid: Simulating and Visualizing Orbit

Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Probing the transient and time-variable sky

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