OGLE16aaa - A signature of a hungry supermassive black hole

Lukasz Wyrzykowski; M. Zieliński; Z. Kostrzewa-Rutkowska; A. Hamanowicz; P. G. Jonker; I. Arcavi; J. Guillochon; P. J. Brown; S. Kozlowski; A. Udalski; M. K. Szymański; I. Soszyński; R. Poleski; P. Pietrukowicz; J. Skowron; P. Mróz; K. Ulaczyk; M. Pawlak; K. A. Rybicki; J. Greiner; T. Krühler; J. Bolmer; S. J. Smartt; K. Maguire; K. Smith

doi:https://doi.org/10.1093/mnrasl/slw213

OGLE16aaa - A signature of a hungry supermassive black hole

Lukasz Wyrzykowski, M. Zieliński, Z. Kostrzewa-Rutkowska, A. Hamanowicz, P. G. Jonker, I. Arcavi, J. Guillochon, P. J. Brown, S. Kozlowski, A. Udalski, M. K. Szymański, I. Soszyński, R. Poleski, P. Pietrukowicz, J. Skowron, P. Mróz, K. Ulaczyk, M. Pawlak, K. A. Rybicki, J. GreinerT. Krühler, J. Bolmer, S. J. Smartt, K. Maguire, K. Smith

Research output: Contribution to journal › Article › peer-review

Abstract

We present the discovery and first three months of follow-up observations of a currently ongoing unusual transient detected by the Optical Gravitational Lensing Experiment (OGLE-IV) survey, located in the centre of a galaxy at redshift z = 0.1655. The long rise to absolute magnitude of -20.5 mag, slow decline, very broad He and H spectral features make OGLE16aaa similar to other optical/UV tidal disruption events (TDEs).Weak narrow emission lines in the spectrum and archival photometric observations suggest the host galaxy is a weak-line active galactic nucleus, which has been accreting at higher rate in the past. OGLE16aaa, along with SDSS J0748, seems to form a sub-class of TDEs by weakly or recently active supermassive black holes (SMBHs). This class might bridge the TDEs by quiescent SMBHs and flares observed as 'changing-look quasars', if we interpret the latter as TDEs. If this picture is true, the previously applied requirement for identifying a flare as a TDE that it had to come from an inactive nucleus, could be leading to observational bias in TDE selection, thus affecting TDE-rate estimations.

Original language	English
Pages (from-to)	L114-L118
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Volume	465
Issue number	1
DOIs	https://doi.org/10.1093/mnrasl/slw213
State	Published - 1 Feb 2017
Externally published	Yes

Keywords

Black hole physics
Galaxies: active
Galaxies: individual: OGLE16aaa

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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https://doi.org/10.1093/mnrasl/slw213

Cite this

Wyrzykowski, L., Zieliński, M., Kostrzewa-Rutkowska, Z., Hamanowicz, A., Jonker, P. G., Arcavi, I., Guillochon, J., Brown, P. J., Kozlowski, S., Udalski, A., Szymański, M. K., Soszyński, I., Poleski, R., Pietrukowicz, P., Skowron, J., Mróz, P., Ulaczyk, K., Pawlak, M., Rybicki, K. A., ... Smith, K. (2017). OGLE16aaa - A signature of a hungry supermassive black hole. Monthly Notices of the Royal Astronomical Society: Letters, 465(1), L114-L118. https://doi.org/10.1093/mnrasl/slw213

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title = "OGLE16aaa - A signature of a hungry supermassive black hole",

abstract = "We present the discovery and first three months of follow-up observations of a currently ongoing unusual transient detected by the Optical Gravitational Lensing Experiment (OGLE-IV) survey, located in the centre of a galaxy at redshift z = 0.1655. The long rise to absolute magnitude of -20.5 mag, slow decline, very broad He and H spectral features make OGLE16aaa similar to other optical/UV tidal disruption events (TDEs).Weak narrow emission lines in the spectrum and archival photometric observations suggest the host galaxy is a weak-line active galactic nucleus, which has been accreting at higher rate in the past. OGLE16aaa, along with SDSS J0748, seems to form a sub-class of TDEs by weakly or recently active supermassive black holes (SMBHs). This class might bridge the TDEs by quiescent SMBHs and flares observed as 'changing-look quasars', if we interpret the latter as TDEs. If this picture is true, the previously applied requirement for identifying a flare as a TDE that it had to come from an inactive nucleus, could be leading to observational bias in TDE selection, thus affecting TDE-rate estimations.",

keywords = "Black hole physics, Galaxies: active, Galaxies: individual: OGLE16aaa",

author = "Lukasz Wyrzykowski and M. Zieli{\'n}ski and Z. Kostrzewa-Rutkowska and A. Hamanowicz and Jonker, {P. G.} and I. Arcavi and J. Guillochon and Brown, {P. J.} and S. Kozlowski and A. Udalski and Szyma{\'n}ski, {M. K.} and I. Soszy{\'n}ski and R. Poleski and P. Pietrukowicz and J. Skowron and P. Mr{\'o}z and K. Ulaczyk and M. Pawlak and Rybicki, {K. A.} and J. Greiner and T. Kr{\"u}hler and J. Bolmer and Smartt, {S. J.} and K. Maguire and K. Smith",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors.",

year = "2017",

month = feb,

day = "1",

doi = "https://doi.org/10.1093/mnrasl/slw213",

language = "الإنجليزيّة",

volume = "465",

pages = "L114--L118",

journal = "Monthly Notices of the Royal Astronomical Society: Letters",

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Wyrzykowski, L, Zieliński, M, Kostrzewa-Rutkowska, Z, Hamanowicz, A, Jonker, PG, Arcavi, I, Guillochon, J, Brown, PJ, Kozlowski, S, Udalski, A, Szymański, MK, Soszyński, I, Poleski, R, Pietrukowicz, P, Skowron, J, Mróz, P, Ulaczyk, K, Pawlak, M, Rybicki, KA, Greiner, J, Krühler, T, Bolmer, J, Smartt, SJ, Maguire, K & Smith, K 2017, 'OGLE16aaa - A signature of a hungry supermassive black hole', Monthly Notices of the Royal Astronomical Society: Letters, vol. 465, no. 1, pp. L114-L118. https://doi.org/10.1093/mnrasl/slw213

TY - JOUR

T1 - OGLE16aaa - A signature of a hungry supermassive black hole

AU - Wyrzykowski, Lukasz

AU - Zieliński, M.

AU - Kostrzewa-Rutkowska, Z.

AU - Hamanowicz, A.

AU - Jonker, P. G.

AU - Arcavi, I.

AU - Guillochon, J.

AU - Brown, P. J.

AU - Kozlowski, S.

AU - Udalski, A.

AU - Szymański, M. K.

AU - Soszyński, I.

AU - Poleski, R.

AU - Pietrukowicz, P.

AU - Skowron, J.

AU - Mróz, P.

AU - Ulaczyk, K.

AU - Pawlak, M.

AU - Rybicki, K. A.

AU - Greiner, J.

AU - Krühler, T.

AU - Bolmer, J.

AU - Smartt, S. J.

AU - Maguire, K.

AU - Smith, K.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - We present the discovery and first three months of follow-up observations of a currently ongoing unusual transient detected by the Optical Gravitational Lensing Experiment (OGLE-IV) survey, located in the centre of a galaxy at redshift z = 0.1655. The long rise to absolute magnitude of -20.5 mag, slow decline, very broad He and H spectral features make OGLE16aaa similar to other optical/UV tidal disruption events (TDEs).Weak narrow emission lines in the spectrum and archival photometric observations suggest the host galaxy is a weak-line active galactic nucleus, which has been accreting at higher rate in the past. OGLE16aaa, along with SDSS J0748, seems to form a sub-class of TDEs by weakly or recently active supermassive black holes (SMBHs). This class might bridge the TDEs by quiescent SMBHs and flares observed as 'changing-look quasars', if we interpret the latter as TDEs. If this picture is true, the previously applied requirement for identifying a flare as a TDE that it had to come from an inactive nucleus, could be leading to observational bias in TDE selection, thus affecting TDE-rate estimations.

AB - We present the discovery and first three months of follow-up observations of a currently ongoing unusual transient detected by the Optical Gravitational Lensing Experiment (OGLE-IV) survey, located in the centre of a galaxy at redshift z = 0.1655. The long rise to absolute magnitude of -20.5 mag, slow decline, very broad He and H spectral features make OGLE16aaa similar to other optical/UV tidal disruption events (TDEs).Weak narrow emission lines in the spectrum and archival photometric observations suggest the host galaxy is a weak-line active galactic nucleus, which has been accreting at higher rate in the past. OGLE16aaa, along with SDSS J0748, seems to form a sub-class of TDEs by weakly or recently active supermassive black holes (SMBHs). This class might bridge the TDEs by quiescent SMBHs and flares observed as 'changing-look quasars', if we interpret the latter as TDEs. If this picture is true, the previously applied requirement for identifying a flare as a TDE that it had to come from an inactive nucleus, could be leading to observational bias in TDE selection, thus affecting TDE-rate estimations.

KW - Black hole physics

KW - Galaxies: active

KW - Galaxies: individual: OGLE16aaa

UR - http://www.scopus.com/inward/record.url?scp=85017327371&partnerID=8YFLogxK

U2 - https://doi.org/10.1093/mnrasl/slw213

DO - https://doi.org/10.1093/mnrasl/slw213

M3 - مقالة

SN - 1745-3925

VL - 465

SP - L114-L118

JO - Monthly Notices of the Royal Astronomical Society: Letters

JF - Monthly Notices of the Royal Astronomical Society: Letters

IS - 1

ER -

OGLE16aaa - A signature of a hungry supermassive black hole

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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