论文标题

在Ligo的第三次观察中减少散射光

Reducing Scattered Light in LIGO's Third Observing Run

论文作者

Soni, S, Austin, C, Effler, A, Schofield, R M S, Gonzalez, G, Frolov, V V, Driggers, J C, Pele, A, Urban, A L, Valdes, G, Abbott, R., Adams, C., Adhikari, R. X., Ananyeva, A., Appert, S., Arai, K., Areeda, J. S., Asali, Y., Aston, S. M., Baer, A. M., Ball, M., Ballmer, S. W., Banagiri, S., Barker, D., Barsotti, L., Bartlett, J., Berger, B. K., Betzwieser, J., Bhattacharjee, D., Billingsley, G., Biscans, S., Blair, C. D., Blair, R. M., Bode, N., Booker, P., Bork, R., Bramley, A., Brooks, A. F., Brown, D. D., Buikema, A., Cahillane, C., Cannon, K. C., Chen, X., Ciobanu, A. A., Clara, F., Cooper, S. J., Corley, K. R., Countryman, S. T., Covas, P. B., Coyne, D. C., Datrier, L. E. H., Davis, D., Di Fronzo, C., Dooley, K. L., Dupej, P., Dwyer, S. E., Etzel, T., Evans, M., Evans, T. M., Feicht, J., Fernandez-Galiana, A., Fritschel, P., Fulda, P., Fyffe, M., Giaime, J. A., Giardina, K. D., Godwin, P., Goetz, E., Gras, S., Gray, C., Gray, R., Green, A. C., Gustafson, E. K., Gustafson, R., Hanks, J., Hanson, J., Hardwick, T., Hasskew, R. K., Heintze, M. C., Helmling-Cornell, A. F., Holland, N. A., Jones, J. D., Kandhasamy, S., Karki, S., Kasprzack, M., Kawabe, K., Kijbunchoo, N., King, P. J., Kissel, J. S., Kumar, Rahul, Landry, M., Lane, B. B., Lantz, B., Laxen, M., Lecoeuche, Y. K., Leviton, J., Liu, J., Lormand, M., Lundgren, A. P., Macas, R., MacInnis, M., Macleod, D. M., Mansell, G. L., Márka, S., Márka, Z., Martynov, D. V., Mason, K., Massinger, T. J., Matichard, F., Mavalvala, N., McCarthy, R., McClelland, D. E., McCormick, S., McCuller, L., McIver, J., McRae, T., Mendell, G., Merfeld, K., Merilh, E. L., Meylahn, F., Mistry, T., Mittleman, R., Moreno, G., Mow-Lowry, C. M., Mozzon, S., Mullavey, A., Nelson, T. J. N., Nguyen, P., Nuttall, L. K., Oberling, J., Oram, Richard J., Osthelder, C., Ottaway, D. J., Overmier, H., Palamos, J. R., Parker, W., Payne, E., Penhorwood, R., Perez, C. J., Pirello, M., Radkins, H., Ramirez, K. E., Richardson, J. W., Riles, K., Robertson, N. A., Rollins, J. G., Romel, C. L., Romie, J. H., Ross, M. P., Ryan, K., Sadecki, T., Sanchez, E. J., Sanchez, L. E., Saravanan, T. R., Savage, R. L., Schaetzl, D., Schnabel, R., Schwartz, E., Sellers, D., Shaffer, T., Sigg, D., Slagmolen, B. J. J., Smith, J. R., Sorazu, B., Spencer, A. P., Strain, K. A., Sun, L., Szczepańczyk, M. J., Thomas, M., Thomas, P., Thorne, K. A., Toland, K., Torrie, C. I., Traylor, G., Tse, M., Vajente, G., Vander-Hyde, D. C., Veitch, P. J., Venkateswara, K., Venugopalan, G., Viets, A. D., Vo, T., Vorvick, C., Wade, M., Ward, R. L., Warner, J., Weaver, B., Weiss, R., Whittle, C., Willke, B., Wipf, C. C., Xiao, L., Yamamoto, H., Yu, Hang, Yu, Haocun, Zhang, L., Zucker, M. E., Zweizig, J.

论文摘要

由于散射光引起的噪声一直是晚期的Ligo重力波检测器中的常见干扰,从而阻碍了引力波的检测。低频运动引起的非固定散射噪声可以在重力波通道的时频平面中识别为拱形。在本文中,我们表征了Ligo从2019年4月至2020年3月的第三次观察O3的散射噪声。我们发现至少有两个不同的散射噪声种群,我们研究了其中一个散射噪声的散射噪声及其缓解量。我们发现,两个特定表面之间的相对运动与散射光的存在密切相关,并且我们实施了一种减少该运动的技术。我们还使用证人通道提出了一种算法,以识别该噪声可能存在于检测器中的时间。

Noise due to scattered light has been a frequent disturbance in the Advanced LIGO gravitational wave detectors, hindering the detection of gravitational waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches in the time-frequency plane of the gravitational wave channel. In this paper, we characterize the scattering noise for LIGO's third observing run O3 from April, 2019 to March, 2020. We find at least two different populations of scattering noise and we investigate the multiple origins of one of them as well as its mitigation. We find that relative motion between two specific surfaces is strongly correlated with the presence of scattered light and we implement a technique to reduce this motion. We also present an algorithm using a witness channel to identify the times this noise can be present in the detector.

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