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To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities

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To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities. / Neustadt, J. M. M.; Holoien, T. W-S; Kochanek, C. S. et al.
In: Monthly Notices of the Royal Astronomical Society, Vol. 494, No. 2, 20.04.2020, p. 2538-2560.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Neustadt, JMM, Holoien, TW-S, Kochanek, CS, Auchettl, K, Brown, JS, Shappee, BJ, Pogge, RW, Dong, S, Stanek, KZ, Tucker, MA, Bose, S, Chen, P, Ricci, C, Vallely, PJ, Prieto, JL, Coulter, DA, Drout, MR, Foley, RJ, Kilpatrick, CD, Piro, AL, Rojas-Bravo, C, Buckley, DAH, Gromadzki, M, Dimitriadis, G, Siebert, MR, Do, A, Huber, ME & Payne, A 2020, 'To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities', Monthly Notices of the Royal Astronomical Society, vol. 494, no. 2, pp. 2538-2560. https://doi.org/10.1093/MNRAS/STAA859

APA

Neustadt, J. M. M., Holoien, T. W.-S., Kochanek, C. S., Auchettl, K., Brown, J. S., Shappee, B. J., Pogge, R. W., Dong, S., Stanek, K. Z., Tucker, M. A., Bose, S., Chen, P., Ricci, C., Vallely, P. J., Prieto, J. L., Coulter, D. A., Drout, M. R., Foley, R. J., Kilpatrick, C. D., ... Payne, A. (2020). To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities. Monthly Notices of the Royal Astronomical Society, 494(2), 2538-2560. https://doi.org/10.1093/MNRAS/STAA859

Vancouver

Neustadt JMM, Holoien TWS, Kochanek CS, Auchettl K, Brown JS, Shappee BJ et al. To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities. Monthly Notices of the Royal Astronomical Society. 2020 Apr 20;494(2):2538-2560. doi: 10.1093/MNRAS/STAA859

Author

Neustadt, J. M. M. ; Holoien, T. W-S ; Kochanek, C. S. et al. / To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities. In: Monthly Notices of the Royal Astronomical Society. 2020 ; Vol. 494, No. 2. pp. 2538-2560.

Bibtex

@article{83e6a292f6e145bdb793d9812e3d8609,
title = "To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities",
abstract = "We present the discovery of ASASSN-18jd (AT 2018bcb), a luminous optical/ ultraviolet(UV)/X-ray transient located in the nucleus of the galaxy 2MASX J22434289- 1659083 at z = 0.1192. Over the year after discovery, Swift UltraViolet and Optical Telescope (UVOT) photometry shows the UV spectral energy distribution of the transient to be well modelled by a slowly shrinking blackbody with temperature T ∼ 2.5 × 104 K, a maximum observed luminosity of Lmax = 4.5+0.6 -0.3 × 1044 erg s-1, and a radiated energy of E = 9.6+1.1 -0.6 × 1051 erg. X-ray data from Swift X-Ray Telescope (XRT) and XMM-Newton show a transient, variable X-ray flux with blackbody and power-law components that fade by nearly an order of magnitude over the following year. Optical spectra show strong, roughly constant broad Balmer emission and transient features attributable to He II, NIII-V, OIII, and coronal Fe. While ASASSN-18jd shares similarities with tidal disruption events (TDEs), it is also similar to the newly discovered nuclear transients seen in quiescent galaxies and faint active galactic nuclei (AGNs).",
keywords = "Accretion, accretion discs, Black hole physics, Galaxies: nuclei",
author = "Neustadt, {J. M. M.} and Holoien, {T. W-S} and Kochanek, {C. S.} and K. Auchettl and Brown, {J. S.} and Shappee, {B. J.} and Pogge, {R. W.} and Subo Dong and Stanek, {K. Z.} and Tucker, {M. A.} and S. Bose and Ping Chen and C. Ricci and Vallely, {P. J.} and Prieto, {J. L.} and Coulter, {D. A.} and Drout, {M. R.} and Foley, {R. J.} and Kilpatrick, {C. D.} and Piro, {A. L.} and C. Rojas-Bravo and Buckley, {D. A. H.} and M. Gromadzki and G. Dimitriadis and Siebert, {M. R.} and A. Do and Huber, {M. E.} and A. Payne",
year = "2020",
month = apr,
day = "20",
doi = "10.1093/MNRAS/STAA859",
language = "English",
volume = "494",
pages = "2538--2560",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "2",

}

RIS

TY - JOUR

T1 - To TDE or not to TDE: the luminous transient ASASSN-18jd with TDE-like and AGN-like qualities

AU - Neustadt, J. M. M.

AU - Holoien, T. W-S

AU - Kochanek, C. S.

AU - Auchettl, K.

AU - Brown, J. S.

AU - Shappee, B. J.

AU - Pogge, R. W.

AU - Dong, Subo

AU - Stanek, K. Z.

AU - Tucker, M. A.

AU - Bose, S.

AU - Chen, Ping

AU - Ricci, C.

AU - Vallely, P. J.

AU - Prieto, J. L.

AU - Coulter, D. A.

AU - Drout, M. R.

AU - Foley, R. J.

AU - Kilpatrick, C. D.

AU - Piro, A. L.

AU - Rojas-Bravo, C.

AU - Buckley, D. A. H.

AU - Gromadzki, M.

AU - Dimitriadis, G.

AU - Siebert, M. R.

AU - Do, A.

AU - Huber, M. E.

AU - Payne, A.

PY - 2020/4/20

Y1 - 2020/4/20

N2 - We present the discovery of ASASSN-18jd (AT 2018bcb), a luminous optical/ ultraviolet(UV)/X-ray transient located in the nucleus of the galaxy 2MASX J22434289- 1659083 at z = 0.1192. Over the year after discovery, Swift UltraViolet and Optical Telescope (UVOT) photometry shows the UV spectral energy distribution of the transient to be well modelled by a slowly shrinking blackbody with temperature T ∼ 2.5 × 104 K, a maximum observed luminosity of Lmax = 4.5+0.6 -0.3 × 1044 erg s-1, and a radiated energy of E = 9.6+1.1 -0.6 × 1051 erg. X-ray data from Swift X-Ray Telescope (XRT) and XMM-Newton show a transient, variable X-ray flux with blackbody and power-law components that fade by nearly an order of magnitude over the following year. Optical spectra show strong, roughly constant broad Balmer emission and transient features attributable to He II, NIII-V, OIII, and coronal Fe. While ASASSN-18jd shares similarities with tidal disruption events (TDEs), it is also similar to the newly discovered nuclear transients seen in quiescent galaxies and faint active galactic nuclei (AGNs).

AB - We present the discovery of ASASSN-18jd (AT 2018bcb), a luminous optical/ ultraviolet(UV)/X-ray transient located in the nucleus of the galaxy 2MASX J22434289- 1659083 at z = 0.1192. Over the year after discovery, Swift UltraViolet and Optical Telescope (UVOT) photometry shows the UV spectral energy distribution of the transient to be well modelled by a slowly shrinking blackbody with temperature T ∼ 2.5 × 104 K, a maximum observed luminosity of Lmax = 4.5+0.6 -0.3 × 1044 erg s-1, and a radiated energy of E = 9.6+1.1 -0.6 × 1051 erg. X-ray data from Swift X-Ray Telescope (XRT) and XMM-Newton show a transient, variable X-ray flux with blackbody and power-law components that fade by nearly an order of magnitude over the following year. Optical spectra show strong, roughly constant broad Balmer emission and transient features attributable to He II, NIII-V, OIII, and coronal Fe. While ASASSN-18jd shares similarities with tidal disruption events (TDEs), it is also similar to the newly discovered nuclear transients seen in quiescent galaxies and faint active galactic nuclei (AGNs).

KW - Accretion, accretion discs

KW - Black hole physics

KW - Galaxies: nuclei

UR - https://publons.com/wos-op/publon/34421864/

U2 - 10.1093/MNRAS/STAA859

DO - 10.1093/MNRAS/STAA859

M3 - Journal article

VL - 494

SP - 2538

EP - 2560

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -