A search for optical bursts from the repeating fast radio burst FRB 121102
Date Issued
2017
Author(s)
Hardy, L. K.
•
Dhillon, V. S.
•
Spitler, L. G.
•
Littlefair, S. P.
•
Ashley, R. P.
•
De Cia, A.
•
Green, M. J.
•
Jaroenjittichai, P.
•
Keane, E. F.
•
Kerry, P.
•
Kramer, M.
•
Malesani, D.
•
Marsh, T. R.
•
Parsons, S. G.
•
•
Rattanasoon, S.
•
Sahman, D. I.
Abstract
We present a search for optical bursts from the repeating fast radio burst FRB 121102 using simultaneous observations with the high-speed optical camera ULTRASPEC on the 2.4-m Thai National Telescope and radio observations with the 100-m Effelsberg Radio Telescope. A total of 13 radio bursts were detected, but we found no evidence for corresponding optical bursts in our 70.7-ms frames. The 5σ upper limit to the optical flux density during our observations is 0.33 mJy at 767 nm. This gives an upper limit for the optical burst fluence of 0.046 Jy ms, which constrains the broad-band spectral index of the burst emission to α ≤ -0.2. Two of the radio pulses are separated by just 34 ms, which may represent an upper limit on a possible underlying periodicity (a rotation period typical of pulsars), or these pulses may have come from a single emission window that is a small fraction of a possible period.
Volume
472
Issue
3
Start page
2800
Issn Identifier
0035-8711
Ads BibCode
2017MNRAS.472.2800H
Rights
open.access
File(s)![Thumbnail Image]()
Loading...
Name
stx2153.pdf
Description
Pdf editoriale
Size
2.89 MB
Format
Adobe PDF
Checksum (MD5)
74346caeebcc45fe40e7ad519a70744d