Abstract
We present deep Apache Point Observatory optical observations within seconds of radio emission from the periodic fast radio burst (FRB) 180916.J0158+65 obtained on 2020 September 3. FRB 180916.J0158+65 is located in a nearby spiral galaxy 150 Mpc away and has an "active phase"with a well-measured period of approximately 16.3 days. Targeting the FRB at the peak of its expected active phase and during a recent 30 minute observing window by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) in which a radio burst was detected, we did not detect any transient optical emission at mi ≈ 24.7 mag (3σ) from 2.2 to 1938.1 s after the burst arrival time in optical bands (corrected for dispersion). Comparing our limiting magnitudes to models of a synchrotron maser formed in the circumburst environment of FRB 180916+J0158.65, we constrain scenarios where the burst energy was >1044 erg and the circumburst density was >104 cm-3.
Original language | English (US) |
---|---|
Article number | abd560 |
Journal | Astrophysical Journal Letters |
Volume | 907 |
Issue number | 1 |
DOIs | |
State | Published - Jan 20 2021 |
Funding
We thank J.X. Prochaska for helpful comments on this manuscript. C.D.K. acknowledges support through a NASA grant in support of Hubble Space Telescope program AR-16136. K.E.H. acknowledges support by a Project Grant (162948\u2013051) from The Icelandic Research Fund. W.F. acknowledges support by the National Science Foundation under grant Nos. AST-1814782 and AST-1909358. B.M. is supported by NASA through the NASA Hubble Fellowship grant #HST-HF2-51412.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. Based on observations obtained with the Apache Point Observatory 3.5 m telescope, which is owned and operated by the Astrophysical Research Consortium. Facilities:\uF0A0APO 3.5 m (ARCTIC).
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science