The nuclear transient AT 2017gge: a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH

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The nuclear transient AT 2017gge : a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH. / Onori, F.; Cannizzaro, G.; Jonker, P. G.; Kim, M.; Nicholl, M.; Mattila, S.; Reynolds, T. M.; Fraser, M.; Wevers, T.; Brocato, E.; Anderson, J. P.; Carini, R.; Charalampopoulos, P.; Clark, P.; Gromadzki, M.; Gutierrez, C. P.; Ihanec, N.; Inserra, C.; Lawrence, A.; Leloudas, G.; Lundqvist, P.; Muller-Bravo, T. E.; Piranomonte, S.; Pursiainen, M.; Rybicki, K. A.; Somero, A.; Young, D. R.; Chambers, K. C.; Gao, H.; de Boer, T. J. L.; Magnier, E. A.

I: Monthly Notices of the Royal Astronomical Society, Bind 517, Nr. 1, 04.10.2022, s. 76-98.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Onori, F, Cannizzaro, G, Jonker, PG, Kim, M, Nicholl, M, Mattila, S, Reynolds, TM, Fraser, M, Wevers, T, Brocato, E, Anderson, JP, Carini, R, Charalampopoulos, P, Clark, P, Gromadzki, M, Gutierrez, CP, Ihanec, N, Inserra, C, Lawrence, A, Leloudas, G, Lundqvist, P, Muller-Bravo, TE, Piranomonte, S, Pursiainen, M, Rybicki, KA, Somero, A, Young, DR, Chambers, KC, Gao, H, de Boer, TJL & Magnier, EA 2022, 'The nuclear transient AT 2017gge: a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH', Monthly Notices of the Royal Astronomical Society, bind 517, nr. 1, s. 76-98. https://doi.org/10.1093/mnras/stac2673

APA

Onori, F., Cannizzaro, G., Jonker, P. G., Kim, M., Nicholl, M., Mattila, S., Reynolds, T. M., Fraser, M., Wevers, T., Brocato, E., Anderson, J. P., Carini, R., Charalampopoulos, P., Clark, P., Gromadzki, M., Gutierrez, C. P., Ihanec, N., Inserra, C., Lawrence, A., ... Magnier, E. A. (2022). The nuclear transient AT 2017gge: a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH. Monthly Notices of the Royal Astronomical Society, 517(1), 76-98. https://doi.org/10.1093/mnras/stac2673

Vancouver

Onori F, Cannizzaro G, Jonker PG, Kim M, Nicholl M, Mattila S o.a. The nuclear transient AT 2017gge: a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH. Monthly Notices of the Royal Astronomical Society. 2022 okt. 4;517(1):76-98. https://doi.org/10.1093/mnras/stac2673

Author

Onori, F. ; Cannizzaro, G. ; Jonker, P. G. ; Kim, M. ; Nicholl, M. ; Mattila, S. ; Reynolds, T. M. ; Fraser, M. ; Wevers, T. ; Brocato, E. ; Anderson, J. P. ; Carini, R. ; Charalampopoulos, P. ; Clark, P. ; Gromadzki, M. ; Gutierrez, C. P. ; Ihanec, N. ; Inserra, C. ; Lawrence, A. ; Leloudas, G. ; Lundqvist, P. ; Muller-Bravo, T. E. ; Piranomonte, S. ; Pursiainen, M. ; Rybicki, K. A. ; Somero, A. ; Young, D. R. ; Chambers, K. C. ; Gao, H. ; de Boer, T. J. L. ; Magnier, E. A. / The nuclear transient AT 2017gge : a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH. I: Monthly Notices of the Royal Astronomical Society. 2022 ; Bind 517, Nr. 1. s. 76-98.

Bibtex

@article{cc029620e4fa493e8cd597841de6c427,
title = "The nuclear transient AT 2017gge: a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH",
abstract = "We present the results from a dense multwavelength [optical/UV, near-infrared (IR), and X-ray] follow-up campaign of the nuclear transient AT 2017gge, covering a total of 1698 d from the transient's discovery. The bolometric light curve, the blackbody temperature and radius, the broad H and He i lambda 5876 emission lines and their evolution with time, are all consistent with a tidal disruption event (TDE) nature. A soft X-ray flare is detected with a delay of similar to 200 d with respect to the optical/UV peak and it is rapidly followed by the emergence of a broad He ii lambda 4686 and by a number of long-lasting high ionization coronal emission lines. This indicate a clear connection between a TDE flare and the appearance of extreme coronal line emission (ECLEs). An IR echo, resulting from dust re-radiation of the optical/UV TDE light is observed after the X-ray flare and the associated near-IR spectra show a transient broad feature in correspondence of the He i lambda 10830 and, for the first time in a TDE, a transient high-ionization coronal NIR line (the [Fe xiii] lambda 10798) is also detected. The data are well explained by a scenario in which a TDE occurs in a gas-and-dust rich environment and its optical/UV, soft X-ray, and IR emission have different origins and locations. The optical emission may be produced by stellar debris stream collisions prior to the accretion disc formation, which is instead responsible for the soft X-ray flare, emitted after the end of the circularization process.",
keywords = "black hole physics, galaxies: active, galaxies: nuclei, infrared: galaxies, X-rays: galaxies, transients: tidal disruption events, ACTIVE GALACTIC NUCLEI, BLACK-HOLE MASSES, X-RAY, HOST GALAXIES, FOLLOW-UP, EMISSION-LINES, TDE CANDIDATE, LIGHT CURVES, E PLUS, STAR",
author = "F. Onori and G. Cannizzaro and Jonker, {P. G.} and M. Kim and M. Nicholl and S. Mattila and Reynolds, {T. M.} and M. Fraser and T. Wevers and E. Brocato and Anderson, {J. P.} and R. Carini and P. Charalampopoulos and P. Clark and M. Gromadzki and Gutierrez, {C. P.} and N. Ihanec and C. Inserra and A. Lawrence and G. Leloudas and P. Lundqvist and Muller-Bravo, {T. E.} and S. Piranomonte and M. Pursiainen and Rybicki, {K. A.} and A. Somero and Young, {D. R.} and Chambers, {K. C.} and H. Gao and {de Boer}, {T. J. L.} and Magnier, {E. A.}",
year = "2022",
month = oct,
day = "4",
doi = "10.1093/mnras/stac2673",
language = "English",
volume = "517",
pages = "76--98",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",

}

RIS

TY - JOUR

T1 - The nuclear transient AT 2017gge

T2 - a tidal disruption event in a dusty and gas-rich environment and the awakening of a dormant SMBH

AU - Onori, F.

AU - Cannizzaro, G.

AU - Jonker, P. G.

AU - Kim, M.

AU - Nicholl, M.

AU - Mattila, S.

AU - Reynolds, T. M.

AU - Fraser, M.

AU - Wevers, T.

AU - Brocato, E.

AU - Anderson, J. P.

AU - Carini, R.

AU - Charalampopoulos, P.

AU - Clark, P.

AU - Gromadzki, M.

AU - Gutierrez, C. P.

AU - Ihanec, N.

AU - Inserra, C.

AU - Lawrence, A.

AU - Leloudas, G.

AU - Lundqvist, P.

AU - Muller-Bravo, T. E.

AU - Piranomonte, S.

AU - Pursiainen, M.

AU - Rybicki, K. A.

AU - Somero, A.

AU - Young, D. R.

AU - Chambers, K. C.

AU - Gao, H.

AU - de Boer, T. J. L.

AU - Magnier, E. A.

PY - 2022/10/4

Y1 - 2022/10/4

N2 - We present the results from a dense multwavelength [optical/UV, near-infrared (IR), and X-ray] follow-up campaign of the nuclear transient AT 2017gge, covering a total of 1698 d from the transient's discovery. The bolometric light curve, the blackbody temperature and radius, the broad H and He i lambda 5876 emission lines and their evolution with time, are all consistent with a tidal disruption event (TDE) nature. A soft X-ray flare is detected with a delay of similar to 200 d with respect to the optical/UV peak and it is rapidly followed by the emergence of a broad He ii lambda 4686 and by a number of long-lasting high ionization coronal emission lines. This indicate a clear connection between a TDE flare and the appearance of extreme coronal line emission (ECLEs). An IR echo, resulting from dust re-radiation of the optical/UV TDE light is observed after the X-ray flare and the associated near-IR spectra show a transient broad feature in correspondence of the He i lambda 10830 and, for the first time in a TDE, a transient high-ionization coronal NIR line (the [Fe xiii] lambda 10798) is also detected. The data are well explained by a scenario in which a TDE occurs in a gas-and-dust rich environment and its optical/UV, soft X-ray, and IR emission have different origins and locations. The optical emission may be produced by stellar debris stream collisions prior to the accretion disc formation, which is instead responsible for the soft X-ray flare, emitted after the end of the circularization process.

AB - We present the results from a dense multwavelength [optical/UV, near-infrared (IR), and X-ray] follow-up campaign of the nuclear transient AT 2017gge, covering a total of 1698 d from the transient's discovery. The bolometric light curve, the blackbody temperature and radius, the broad H and He i lambda 5876 emission lines and their evolution with time, are all consistent with a tidal disruption event (TDE) nature. A soft X-ray flare is detected with a delay of similar to 200 d with respect to the optical/UV peak and it is rapidly followed by the emergence of a broad He ii lambda 4686 and by a number of long-lasting high ionization coronal emission lines. This indicate a clear connection between a TDE flare and the appearance of extreme coronal line emission (ECLEs). An IR echo, resulting from dust re-radiation of the optical/UV TDE light is observed after the X-ray flare and the associated near-IR spectra show a transient broad feature in correspondence of the He i lambda 10830 and, for the first time in a TDE, a transient high-ionization coronal NIR line (the [Fe xiii] lambda 10798) is also detected. The data are well explained by a scenario in which a TDE occurs in a gas-and-dust rich environment and its optical/UV, soft X-ray, and IR emission have different origins and locations. The optical emission may be produced by stellar debris stream collisions prior to the accretion disc formation, which is instead responsible for the soft X-ray flare, emitted after the end of the circularization process.

KW - black hole physics

KW - galaxies: active

KW - galaxies: nuclei

KW - infrared: galaxies

KW - X-rays: galaxies

KW - transients: tidal disruption events

KW - ACTIVE GALACTIC NUCLEI

KW - BLACK-HOLE MASSES

KW - X-RAY

KW - HOST GALAXIES

KW - FOLLOW-UP

KW - EMISSION-LINES

KW - TDE CANDIDATE

KW - LIGHT CURVES

KW - E PLUS

KW - STAR

U2 - 10.1093/mnras/stac2673

DO - 10.1093/mnras/stac2673

M3 - Journal article

VL - 517

SP - 76

EP - 98

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 1

ER -

ID: 322556472