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Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295. / Hallum, Melissa K.; Jorstad, Svetlana G.; Larionov, Valeri M.; Marscher, Alan P.; Joshi, Manasvita; Weaver, Zachary R.; Williamson, Karen E.; Agudo, Iván; Borman, George A.; Casadio, Carolina; Fuentes, Antonio; Grishina, Tatiana S.; Kopatskaya, Evgenia N.; Larionova, Elena G.; Larionova, Liyudmila V.; Morozova, Daria A.; Nikiforova, Anna A.; Savchenko, Sergey S.; Troitsky, Ivan S.; Troitskaya, Yulia V.; Vasilyev, Andrey A.

в: Astrophysical Journal, Том 926, № 2, 180, 01.02.2022.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Hallum, MK, Jorstad, SG, Larionov, VM, Marscher, AP, Joshi, M, Weaver, ZR, Williamson, KE, Agudo, I, Borman, GA, Casadio, C, Fuentes, A, Grishina, TS, Kopatskaya, EN, Larionova, EG, Larionova, LV, Morozova, DA, Nikiforova, AA, Savchenko, SS, Troitsky, IS, Troitskaya, YV & Vasilyev, AA 2022, 'Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295', Astrophysical Journal, Том. 926, № 2, 180. https://doi.org/10.3847/1538-4357/ac4710

APA

Hallum, M. K., Jorstad, S. G., Larionov, V. M., Marscher, A. P., Joshi, M., Weaver, Z. R., Williamson, K. E., Agudo, I., Borman, G. A., Casadio, C., Fuentes, A., Grishina, T. S., Kopatskaya, E. N., Larionova, E. G., Larionova, L. V., Morozova, D. A., Nikiforova, A. A., Savchenko, S. S., Troitsky, I. S., ... Vasilyev, A. A. (2022). Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295. Astrophysical Journal, 926(2), [180]. https://doi.org/10.3847/1538-4357/ac4710

Vancouver

Hallum MK, Jorstad SG, Larionov VM, Marscher AP, Joshi M, Weaver ZR и пр. Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295. Astrophysical Journal. 2022 Февр. 1;926(2). 180. https://doi.org/10.3847/1538-4357/ac4710

Author

Hallum, Melissa K. ; Jorstad, Svetlana G. ; Larionov, Valeri M. ; Marscher, Alan P. ; Joshi, Manasvita ; Weaver, Zachary R. ; Williamson, Karen E. ; Agudo, Iván ; Borman, George A. ; Casadio, Carolina ; Fuentes, Antonio ; Grishina, Tatiana S. ; Kopatskaya, Evgenia N. ; Larionova, Elena G. ; Larionova, Liyudmila V. ; Morozova, Daria A. ; Nikiforova, Anna A. ; Savchenko, Sergey S. ; Troitsky, Ivan S. ; Troitskaya, Yulia V. ; Vasilyev, Andrey A. / Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295. в: Astrophysical Journal. 2022 ; Том 926, № 2.

BibTeX

@article{c40025ac6ec34fad860ccb7bb1104148,
title = "Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295",
abstract = "We present multi-epoch optical spectra of the γ-ray bright blazar 1156+295 (4C +29.45, Ton 599) obtained with the 4.3 m Lowell Discovery Telescope. During a multiwavelength outburst in late 2017, when the γ-ray flux increased to 2.5 × 10-6 phot cm-2 s-1 and the quasar was first detected at energies ≥100 GeV, the flux of the Mg ii λ2798 emission line changed, as did that of the Fe emission complex at shorter wavelengths. These emission-line fluxes increased along with the highly polarized optical continuum flux, which is presumably synchrotron radiation from the relativistic jet, with a relative time delay of ≥22 weeks. This implies that the line-emitting clouds lie near the jet, which points almost directly toward the line of sight. The emission-line radiation from such clouds, which are located outside the canonical accretion-disk related broad-line region, may be a primary source of seed photons that are up-scattered to γ-ray energies by relativistic electrons in the jet.",
keywords = "RELATIVISTIC JETS, FEII EMISSION, BLAZAR, RADIATION, BEHAVIOR, COMPTONIZATION, MULTIFREQUENCY, POLARIZATION, PHOTOMETRY, DISCOVERY",
author = "Hallum, {Melissa K.} and Jorstad, {Svetlana G.} and Larionov, {Valeri M.} and Marscher, {Alan P.} and Manasvita Joshi and Weaver, {Zachary R.} and Williamson, {Karen E.} and Iv{\'a}n Agudo and Borman, {George A.} and Carolina Casadio and Antonio Fuentes and Grishina, {Tatiana S.} and Kopatskaya, {Evgenia N.} and Larionova, {Elena G.} and Larionova, {Liyudmila V.} and Morozova, {Daria A.} and Nikiforova, {Anna A.} and Savchenko, {Sergey S.} and Troitsky, {Ivan S.} and Troitskaya, {Yulia V.} and Vasilyev, {Andrey A.}",
note = "Publisher Copyright: {\textcopyright} 2022. The Author(s). Published by the American Astronomical Society.",
year = "2022",
month = feb,
day = "1",
doi = "10.3847/1538-4357/ac4710",
language = "English",
volume = "926",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

RIS

TY - JOUR

T1 - Emission-line Variability during a Nonthermal Outburst in the Gamma-Ray Bright Quasar 1156+295

AU - Hallum, Melissa K.

AU - Jorstad, Svetlana G.

AU - Larionov, Valeri M.

AU - Marscher, Alan P.

AU - Joshi, Manasvita

AU - Weaver, Zachary R.

AU - Williamson, Karen E.

AU - Agudo, Iván

AU - Borman, George A.

AU - Casadio, Carolina

AU - Fuentes, Antonio

AU - Grishina, Tatiana S.

AU - Kopatskaya, Evgenia N.

AU - Larionova, Elena G.

AU - Larionova, Liyudmila V.

AU - Morozova, Daria A.

AU - Nikiforova, Anna A.

AU - Savchenko, Sergey S.

AU - Troitsky, Ivan S.

AU - Troitskaya, Yulia V.

AU - Vasilyev, Andrey A.

N1 - Publisher Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

PY - 2022/2/1

Y1 - 2022/2/1

N2 - We present multi-epoch optical spectra of the γ-ray bright blazar 1156+295 (4C +29.45, Ton 599) obtained with the 4.3 m Lowell Discovery Telescope. During a multiwavelength outburst in late 2017, when the γ-ray flux increased to 2.5 × 10-6 phot cm-2 s-1 and the quasar was first detected at energies ≥100 GeV, the flux of the Mg ii λ2798 emission line changed, as did that of the Fe emission complex at shorter wavelengths. These emission-line fluxes increased along with the highly polarized optical continuum flux, which is presumably synchrotron radiation from the relativistic jet, with a relative time delay of ≥22 weeks. This implies that the line-emitting clouds lie near the jet, which points almost directly toward the line of sight. The emission-line radiation from such clouds, which are located outside the canonical accretion-disk related broad-line region, may be a primary source of seed photons that are up-scattered to γ-ray energies by relativistic electrons in the jet.

AB - We present multi-epoch optical spectra of the γ-ray bright blazar 1156+295 (4C +29.45, Ton 599) obtained with the 4.3 m Lowell Discovery Telescope. During a multiwavelength outburst in late 2017, when the γ-ray flux increased to 2.5 × 10-6 phot cm-2 s-1 and the quasar was first detected at energies ≥100 GeV, the flux of the Mg ii λ2798 emission line changed, as did that of the Fe emission complex at shorter wavelengths. These emission-line fluxes increased along with the highly polarized optical continuum flux, which is presumably synchrotron radiation from the relativistic jet, with a relative time delay of ≥22 weeks. This implies that the line-emitting clouds lie near the jet, which points almost directly toward the line of sight. The emission-line radiation from such clouds, which are located outside the canonical accretion-disk related broad-line region, may be a primary source of seed photons that are up-scattered to γ-ray energies by relativistic electrons in the jet.

KW - RELATIVISTIC JETS

KW - FEII EMISSION

KW - BLAZAR

KW - RADIATION

KW - BEHAVIOR

KW - COMPTONIZATION

KW - MULTIFREQUENCY

KW - POLARIZATION

KW - PHOTOMETRY

KW - DISCOVERY

UR - http://www.scopus.com/inward/record.url?scp=85125755231&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/022f0c75-7f2a-3659-8f2a-f313bc0d51f8/

U2 - 10.3847/1538-4357/ac4710

DO - 10.3847/1538-4357/ac4710

M3 - Article

AN - SCOPUS:85125755231

VL - 926

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 180

ER -

ID: 93337477