A Search for the Host Galaxy of FRB 171020
Elizabeth K. Mahony, Ron D. Ekers, Jean Pierre Macquart, Elaine M. Sadler, Keith W. Bannister, Shivani Bhandari, Chris Flynn, Barbel S. Koribalski, J. Xavier Prochaska, Stuart D. Ryder, Ryan M. Shannon, Nicolas Tejos, Matthew T. Whiting, O. I. Wong
We report on a search for the host galaxy of FRB 171020, the fast radio burst (FRB) with the smallest recorded dispersion measure (DM; DM = 114 pc cm-3) of our ongoing ASKAP survey. The low DM confines the burst location within a sufficiently small volume to rigorously constrain the identity of the host galaxy. We identify 16 candidate galaxies in the search volume and single out ESO 601-G036, an Sc galaxy at redshift z = 0.00867, as the most likely host galaxy. Ultraviolet and optical imaging and spectroscopy reveal that this galaxy has a star formation rate of approximately 0.1 M o yr-1 and oxygen abundance 12 + log(O/H) = 8.3 ±0.2, properties that are remarkably consistent with the galaxy hosting the repeating FRB 121102. However, in contrast to FRB 121102, follow-up radio observations of ESO 601-G036 show no compact radio emission above a 5σ limit of L 2.1GHz = 3.6 ×1019 W Hz-1. Using radio continuum observations of the field, combined with archival optical imaging data, we find no analog to the persistent radio source associated with FRB 121102 within the localization region of FRB 171020 out to z = 0.06. These results suggest that FRBs are not necessarily associated with a luminous and compact radio continuum source.
https://doi.org/10.3847/2041-8213/aae7cb
galaxies: individual (ESO 601-G036)
galaxies: spiral
radio continuum: galaxies
10.3847/2041-8213/aae7cb
Dive into the research topics of 'A Search for the Host Galaxy of FRB 171020'. Together they form a unique fingerprint.
radio bursts Physics & Astronomy 100%
radio Earth & Environmental Sciences 65%
European Southern Observatory Physics & Astronomy 25%
continuums Physics & Astronomy 15%
radio observation Physics & Astronomy 13%
radio emission Physics & Astronomy 11%
star formation rate Physics & Astronomy 11%
Mahony, E. K., Ekers, R. D., Macquart, J. P., Sadler, E. M., Bannister, K. W., Bhandari, S., Flynn, C., Koribalski, B. S., Prochaska, J. X., Ryder, S. D., Shannon, R. M., Tejos, N., Whiting, M. T., & Wong, O. I. (2018). A Search for the Host Galaxy of FRB 171020. Astrophysical Journal Letters, 867(1), [L10]. https://doi.org/10.3847/2041-8213/aae7cb
Mahony, Elizabeth K. ; Ekers, Ron D. ; Macquart, Jean Pierre et al. / A Search for the Host Galaxy of FRB 171020. In: Astrophysical Journal Letters. 2018 ; Vol. 867, No. 1.
@article{5ad5b7d65aa8479d84732d0b57d7d62e,
title = "A Search for the Host Galaxy of FRB 171020",
abstract = "We report on a search for the host galaxy of FRB 171020, the fast radio burst (FRB) with the smallest recorded dispersion measure (DM; DM = 114 pc cm-3) of our ongoing ASKAP survey. The low DM confines the burst location within a sufficiently small volume to rigorously constrain the identity of the host galaxy. We identify 16 candidate galaxies in the search volume and single out ESO 601-G036, an Sc galaxy at redshift z = 0.00867, as the most likely host galaxy. Ultraviolet and optical imaging and spectroscopy reveal that this galaxy has a star formation rate of approximately 0.1 M o yr-1 and oxygen abundance 12 + log(O/H) = 8.3 ±0.2, properties that are remarkably consistent with the galaxy hosting the repeating FRB 121102. However, in contrast to FRB 121102, follow-up radio observations of ESO 601-G036 show no compact radio emission above a 5σ limit of L 2.1GHz = 3.6 ×1019 W Hz-1. Using radio continuum observations of the field, combined with archival optical imaging data, we find no analog to the persistent radio source associated with FRB 121102 within the localization region of FRB 171020 out to z = 0.06. These results suggest that FRBs are not necessarily associated with a luminous and compact radio continuum source.",
keywords = "galaxies: individual (ESO 601-G036), galaxies: spiral, radio continuum: galaxies",
author = "Mahony, {Elizabeth K.} and Ekers, {Ron D.} and Macquart, {Jean Pierre} and Sadler, {Elaine M.} and Bannister, {Keith W.} and Shivani Bhandari and Chris Flynn and Koribalski, {Barbel S.} and Prochaska, {J. Xavier} and Ryder, {Stuart D.} and Shannon, {Ryan M.} and Nicolas Tejos and Whiting, {Matthew T.} and Wong, {O. I.}",
note = "Funding Information: The Australian SKA Pathfinder is part of the Australia Telescope National Facility which is managed by CSIRO. We acknowledge the Wajarri Yamatji as the traditional owners of the Observatory site. The Australia Telescope Compact Array is part of the Australia Telescope National Facility which is funded by the Australian Government for operation as a National Facility managed by CSIRO. The Gemini Observatory is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), Ministerio de Ciencia, Tecnolo-g{\'i}a e Innovaci{\'o}n Productiva (Argentina), and Minist{\'e}rio da Ci{\^e}ncia, Tecnologia e Inova{\c c}{\~a}o (Brazil). Funding Information: The authors wish to thank S. Chatterjee, C. Bassa, and the anonymous referee for useful discussions and suggestions that helped to improve this Letter. This research is based on observations collected at the European Southern Observatory under ESO programme 0101.A-0455(B) (PI: J.-P. Macquart), as well as on observations obtained as part of program GS-2018A-Q-205 (PI: N. Tejos) at the Gemini Observatory and C3211 (PI: R.M. Shannon) on the Australia Telescope Compact Array. J.P.M., R.M.S., and K.B. acknowledge Australian Research Council grant DP180100857 and R.M.S. acknowledges support through Australian Research Council (ARC) grants FL150100148 and CE17010000. Publisher Copyright: {\textcopyright} 2018. The American Astronomical Society. All rights reserved.",
doi = "10.3847/2041-8213/aae7cb",
Mahony, EK, Ekers, RD, Macquart, JP, Sadler, EM, Bannister, KW, Bhandari, S, Flynn, C, Koribalski, BS, Prochaska, JX, Ryder, SD, Shannon, RM, Tejos, N, Whiting, MT & Wong, OI 2018, 'A Search for the Host Galaxy of FRB 171020', Astrophysical Journal Letters, vol. 867, no. 1, L10. https://doi.org/10.3847/2041-8213/aae7cb
A Search for the Host Galaxy of FRB 171020. / Mahony, Elizabeth K.; Ekers, Ron D.; Macquart, Jean Pierre et al.
In: Astrophysical Journal Letters, Vol. 867, No. 1, L10, 01.11.2018.
T1 - A Search for the Host Galaxy of FRB 171020
AU - Mahony, Elizabeth K.
AU - Ekers, Ron D.
AU - Macquart, Jean Pierre
AU - Sadler, Elaine M.
AU - Bannister, Keith W.
AU - Bhandari, Shivani
AU - Flynn, Chris
AU - Koribalski, Barbel S.
AU - Prochaska, J. Xavier
AU - Ryder, Stuart D.
AU - Shannon, Ryan M.
AU - Tejos, Nicolas
AU - Whiting, Matthew T.
AU - Wong, O. I.
N1 - Funding Information: The Australian SKA Pathfinder is part of the Australia Telescope National Facility which is managed by CSIRO. We acknowledge the Wajarri Yamatji as the traditional owners of the Observatory site. The Australia Telescope Compact Array is part of the Australia Telescope National Facility which is funded by the Australian Government for operation as a National Facility managed by CSIRO. The Gemini Observatory is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), Ministerio de Ciencia, Tecnolo-gía e Innovación Productiva (Argentina), and Ministério da Ciência, Tecnologia e Inovação (Brazil). Funding Information: The authors wish to thank S. Chatterjee, C. Bassa, and the anonymous referee for useful discussions and suggestions that helped to improve this Letter. This research is based on observations collected at the European Southern Observatory under ESO programme 0101.A-0455(B) (PI: J.-P. Macquart), as well as on observations obtained as part of program GS-2018A-Q-205 (PI: N. Tejos) at the Gemini Observatory and C3211 (PI: R.M. Shannon) on the Australia Telescope Compact Array. J.P.M., R.M.S., and K.B. acknowledge Australian Research Council grant DP180100857 and R.M.S. acknowledges support through Australian Research Council (ARC) grants FL150100148 and CE17010000. Publisher Copyright: © 2018. The American Astronomical Society. All rights reserved.
N2 - We report on a search for the host galaxy of FRB 171020, the fast radio burst (FRB) with the smallest recorded dispersion measure (DM; DM = 114 pc cm-3) of our ongoing ASKAP survey. The low DM confines the burst location within a sufficiently small volume to rigorously constrain the identity of the host galaxy. We identify 16 candidate galaxies in the search volume and single out ESO 601-G036, an Sc galaxy at redshift z = 0.00867, as the most likely host galaxy. Ultraviolet and optical imaging and spectroscopy reveal that this galaxy has a star formation rate of approximately 0.1 M o yr-1 and oxygen abundance 12 + log(O/H) = 8.3 ±0.2, properties that are remarkably consistent with the galaxy hosting the repeating FRB 121102. However, in contrast to FRB 121102, follow-up radio observations of ESO 601-G036 show no compact radio emission above a 5σ limit of L 2.1GHz = 3.6 ×1019 W Hz-1. Using radio continuum observations of the field, combined with archival optical imaging data, we find no analog to the persistent radio source associated with FRB 121102 within the localization region of FRB 171020 out to z = 0.06. These results suggest that FRBs are not necessarily associated with a luminous and compact radio continuum source.
AB - We report on a search for the host galaxy of FRB 171020, the fast radio burst (FRB) with the smallest recorded dispersion measure (DM; DM = 114 pc cm-3) of our ongoing ASKAP survey. The low DM confines the burst location within a sufficiently small volume to rigorously constrain the identity of the host galaxy. We identify 16 candidate galaxies in the search volume and single out ESO 601-G036, an Sc galaxy at redshift z = 0.00867, as the most likely host galaxy. Ultraviolet and optical imaging and spectroscopy reveal that this galaxy has a star formation rate of approximately 0.1 M o yr-1 and oxygen abundance 12 + log(O/H) = 8.3 ±0.2, properties that are remarkably consistent with the galaxy hosting the repeating FRB 121102. However, in contrast to FRB 121102, follow-up radio observations of ESO 601-G036 show no compact radio emission above a 5σ limit of L 2.1GHz = 3.6 ×1019 W Hz-1. Using radio continuum observations of the field, combined with archival optical imaging data, we find no analog to the persistent radio source associated with FRB 121102 within the localization region of FRB 171020 out to z = 0.06. These results suggest that FRBs are not necessarily associated with a luminous and compact radio continuum source.
KW - galaxies: individual (ESO 601-G036)
KW - galaxies: spiral
KW - radio continuum: galaxies
U2 - 10.3847/2041-8213/aae7cb
DO - 10.3847/2041-8213/aae7cb
M1 - L10
Mahony EK, Ekers RD, Macquart JP, Sadler EM, Bannister KW, Bhandari S et al. A Search for the Host Galaxy of FRB 171020. Astrophysical Journal Letters. 2018 Nov 1;867(1):L10. doi: 10.3847/2041-8213/aae7cb