GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO)

S. Belkin; B. P. Gompertz; A. Kumar; K. Ackley; D. K. Galloway; F. Jiménez-Ibarra; T. l. Killestein; D. O’Neill; K. Wiersema; D. B. Malesani; A. j. Levan; J. Lyman; M. J. Dyer; K. Ulaczyk; D. Steeghs; V. S. Dhillon; P. O’Brien; G. Ramsay; K. Noysena; R. Kotak; R. P. Breton; L. Nuttall; E. Pallé; D. Pollacco; S. Awiphan; U. Burhanudin; P. Chote; A. Chrimes; E. Daw; C. Duffy; R. Eyles-Ferris; B. Godson; T. Heikkilä; P. Irawati; L. Kelsey; M. R. Kennedy; S. Littlefair; L. Makrygianni; T. Marsh; D. Mata sánchez; S. Mattila; J. Maund; J. McCormac; D. Mkrtichian; J. Mullaney; M. Patel; J. Rana; E. Rol; U. Sawangwit; E. Stanway; R. Starling; P. A. Strøm; B. Warwick

doi:10.3847/2515-5172/ad1876

GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO)

S. Belkin, B. P. Gompertz, A. Kumar, K. Ackley, D. K. Galloway, F. Jiménez-Ibarra, T. l. Killestein, D. O’Neill, K. Wiersema, D. B. Malesani, A. j. Levan, J. Lyman, M. J. Dyer, K. Ulaczyk, D. Steeghs, V. S. Dhillon, P. O’Brien, G. Ramsay, K. Noysena, R. KotakR. P. Breton, L. Nuttall, E. Pallé, D. Pollacco, S. Awiphan, U. Burhanudin, P. Chote, A. Chrimes, E. Daw, C. Duffy, R. Eyles-Ferris, B. Godson, T. Heikkilä, P. Irawati, L. Kelsey, M. R. Kennedy, S. Littlefair, L. Makrygianni, T. Marsh, D. Mata sánchez, S. Mattila, J. Maund, J. McCormac, D. Mkrtichian, J. Mullaney, M. Patel, J. Rana, E. Rol, U. Sawangwit, E. Stanway, R. Starling, P. A. Strøm, B. Warwick

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Abstract

We report on the detection of candidate optical counterpart GOTO23akf/AT2023shv to the GRB 230911A with the Gravitational-wave Optical Transient Observer (GOTO) instruments located at La Palma, Canary Islands, and Siding Spring Observatory, Australia. The Fermi Gamma-ray Burst Monitor, which finds gamma-ray bursts (GRBs) nearly every two days, detected GRB 230911A with a statistical uncertainty of 4fdg1. However, the large (∼10–100 deg2) localization areas mostly impede the rapid identification of an optical counterpart. GOTO facilities fully covered 90% localization area of the GRB 230911A. We proposed GOTO23akf as the optical afterglow of GRB 230911A, subsequently confirmed through Swift-X-Ray Telescope observations in which an uncatalogued X-ray source spatially coincident with the GOTO candidate was detected. This is the first optical afterglow discovery for a Fermi GRB with the newly expanded GOTO network.

Original language	English
Article number	6
Number of pages	9
Journal	Research Notes of the AAS
Volume	8
Issue number	1
DOIs	https://doi.org/10.3847/2515-5172/ad1876
Publication status	Published - 4 Jan 2024

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10.3847/2515-5172/ad1876

GRB 230911AFinal published version, 1 MBLicence: CC BY

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Belkin, S., Gompertz, B. P., Kumar, A., Ackley, K., Galloway, D. K., Jiménez-Ibarra, F., Killestein, T. L., O’Neill, D., Wiersema, K., Malesani, D. B., Levan, A. J., Lyman, J., Dyer, M. J., Ulaczyk, K., Steeghs, D., Dhillon, V. S., O’Brien, P., Ramsay, G., Noysena, K., ... Warwick, B. (2024). GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO). Research Notes of the AAS, 8(1), Article 6. https://doi.org/10.3847/2515-5172/ad1876

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title = "GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO)",

abstract = "We report on the detection of candidate optical counterpart GOTO23akf/AT2023shv to the GRB 230911A with the Gravitational-wave Optical Transient Observer (GOTO) instruments located at La Palma, Canary Islands, and Siding Spring Observatory, Australia. The Fermi Gamma-ray Burst Monitor, which finds gamma-ray bursts (GRBs) nearly every two days, detected GRB 230911A with a statistical uncertainty of 4fdg1. However, the large (∼10–100 deg2) localization areas mostly impede the rapid identification of an optical counterpart. GOTO facilities fully covered 90% localization area of the GRB 230911A. We proposed GOTO23akf as the optical afterglow of GRB 230911A, subsequently confirmed through Swift-X-Ray Telescope observations in which an uncatalogued X-ray source spatially coincident with the GOTO candidate was detected. This is the first optical afterglow discovery for a Fermi GRB with the newly expanded GOTO network.",

author = "S. Belkin and Gompertz, {B. P.} and A. Kumar and K. Ackley and Galloway, {D. K.} and F. Jim{\'e}nez-Ibarra and Killestein, {T. l.} and D. O{\textquoteright}Neill and K. Wiersema and Malesani, {D. B.} and Levan, {A. j.} and J. Lyman and Dyer, {M. J.} and K. Ulaczyk and D. Steeghs and Dhillon, {V. S.} and P. O{\textquoteright}Brien and G. Ramsay and K. Noysena and R. Kotak and Breton, {R. P.} and L. Nuttall and E. Pall{\'e} and D. Pollacco and S. Awiphan and U. Burhanudin and P. Chote and A. Chrimes and E. Daw and C. Duffy and R. Eyles-Ferris and B. Godson and T. Heikkil{\"a} and P. Irawati and L. Kelsey and Kennedy, {M. R.} and S. Littlefair and L. Makrygianni and T. Marsh and {Mata s{\'a}nchez}, D. and S. Mattila and J. Maund and J. McCormac and D. Mkrtichian and J. Mullaney and M. Patel and J. Rana and E. Rol and U. Sawangwit and E. Stanway and R. Starling and Str{\o}m, {P. A.} and B. Warwick",

year = "2024",

month = jan,

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doi = "10.3847/2515-5172/ad1876",

language = "English",

volume = "8",

journal = "Research Notes of the AAS",

issn = "2515-5172",

publisher = "IOP Publishing",

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Belkin, S, Gompertz, BP, Kumar, A, Ackley, K, Galloway, DK, Jiménez-Ibarra, F, Killestein, TL, O’Neill, D, Wiersema, K, Malesani, DB, Levan, AJ, Lyman, J, Dyer, MJ, Ulaczyk, K, Steeghs, D, Dhillon, VS, O’Brien, P, Ramsay, G, Noysena, K, Kotak, R, Breton, RP, Nuttall, L, Pallé, E, Pollacco, D, Awiphan, S, Burhanudin, U, Chote, P, Chrimes, A, Daw, E, Duffy, C, Eyles-Ferris, R, Godson, B, Heikkilä, T, Irawati, P, Kelsey, L, Kennedy, MR, Littlefair, S, Makrygianni, L, Marsh, T, Mata sánchez, D, Mattila, S, Maund, J, McCormac, J, Mkrtichian, D, Mullaney, J, Patel, M, Rana, J, Rol, E, Sawangwit, U, Stanway, E, Starling, R, Strøm, PA & Warwick, B 2024, 'GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO)', Research Notes of the AAS, vol. 8, no. 1, 6. https://doi.org/10.3847/2515-5172/ad1876

TY - JOUR

T1 - GRB 230911A: The First Discovery of a Fermi GRB Optical Counterpart with the Gravitational-wave Optical Transient Observer (GOTO)

AU - Belkin, S.

AU - Gompertz, B. P.

AU - Kumar, A.

AU - Ackley, K.

AU - Galloway, D. K.

AU - Jiménez-Ibarra, F.

AU - Killestein, T. l.

AU - O’Neill, D.

AU - Wiersema, K.

AU - Malesani, D. B.

AU - Levan, A. j.

AU - Lyman, J.

AU - Dyer, M. J.

AU - Ulaczyk, K.

AU - Steeghs, D.

AU - Dhillon, V. S.

AU - O’Brien, P.

AU - Ramsay, G.

AU - Noysena, K.

AU - Kotak, R.

AU - Breton, R. P.

AU - Nuttall, L.

AU - Pallé, E.

AU - Pollacco, D.

AU - Awiphan, S.

AU - Burhanudin, U.

AU - Chote, P.

AU - Chrimes, A.

AU - Daw, E.

AU - Duffy, C.

AU - Eyles-Ferris, R.

AU - Godson, B.

AU - Heikkilä, T.

AU - Irawati, P.

AU - Kelsey, L.

AU - Kennedy, M. R.

AU - Littlefair, S.

AU - Makrygianni, L.

AU - Marsh, T.

AU - Mata sánchez, D.

AU - Mattila, S.

AU - Maund, J.

AU - McCormac, J.

AU - Mkrtichian, D.

AU - Mullaney, J.

AU - Patel, M.

AU - Rana, J.

AU - Rol, E.

AU - Sawangwit, U.

AU - Stanway, E.

AU - Starling, R.

AU - Strøm, P. A.

AU - Warwick, B.

PY - 2024/1/4

Y1 - 2024/1/4

N2 - We report on the detection of candidate optical counterpart GOTO23akf/AT2023shv to the GRB 230911A with the Gravitational-wave Optical Transient Observer (GOTO) instruments located at La Palma, Canary Islands, and Siding Spring Observatory, Australia. The Fermi Gamma-ray Burst Monitor, which finds gamma-ray bursts (GRBs) nearly every two days, detected GRB 230911A with a statistical uncertainty of 4fdg1. However, the large (∼10–100 deg2) localization areas mostly impede the rapid identification of an optical counterpart. GOTO facilities fully covered 90% localization area of the GRB 230911A. We proposed GOTO23akf as the optical afterglow of GRB 230911A, subsequently confirmed through Swift-X-Ray Telescope observations in which an uncatalogued X-ray source spatially coincident with the GOTO candidate was detected. This is the first optical afterglow discovery for a Fermi GRB with the newly expanded GOTO network.

AB - We report on the detection of candidate optical counterpart GOTO23akf/AT2023shv to the GRB 230911A with the Gravitational-wave Optical Transient Observer (GOTO) instruments located at La Palma, Canary Islands, and Siding Spring Observatory, Australia. The Fermi Gamma-ray Burst Monitor, which finds gamma-ray bursts (GRBs) nearly every two days, detected GRB 230911A with a statistical uncertainty of 4fdg1. However, the large (∼10–100 deg2) localization areas mostly impede the rapid identification of an optical counterpart. GOTO facilities fully covered 90% localization area of the GRB 230911A. We proposed GOTO23akf as the optical afterglow of GRB 230911A, subsequently confirmed through Swift-X-Ray Telescope observations in which an uncatalogued X-ray source spatially coincident with the GOTO candidate was detected. This is the first optical afterglow discovery for a Fermi GRB with the newly expanded GOTO network.

U2 - 10.3847/2515-5172/ad1876

DO - 10.3847/2515-5172/ad1876

M3 - Article

SN - 2515-5172

VL - 8

JO - Research Notes of the AAS

JF - Research Notes of the AAS

IS - 1

M1 - 6

ER -