Investigating the Low State of NGC 1275 with VERITAS and Fermi-LAT Observations

VERITAS collaboration

Investigating the Low State of NGC 1275 with VERITAS and Fermi-LAT Observations

VERITAS collaboration

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Conference article › peer-review

Abstract

The VERITAS observatory is a ground-based imaging atmospheric Cherenkov telescope array that detects very-high-energy (VHE; E>100 GeV) gamma-ray emission from a range of astrophysical sources including more than ∼40 Active Galactic Nuclei (AGN). Very few radio galaxies, AGN with relativistic jets oriented at angles offset to our line-of-sight, are detected at VHE including NGC 1275 (3C 84), the central galaxy in the Perseus cluster (z∼0.0176). NGC 1275 has a long history of observations across all wavebands, and a complex morphology that has evolved with time. The origin of the TeV emission in NGC 1275 in both the flaring and non-flaring states is still not entirely understood. A VERITAS study of a January 2017 flare finds that a multi-component model is required to fit the multi-wavelength spectral energy distribution (SED). In this study, we present the EBL-corrected, Compton SED peak in the non-flaring state of NGC 1275 constructed with simultaneous VERITAS and Fermi-LAT observations over the period 2012-2017.

Original language	English (US)
Article number	661
Journal	Proceedings of Science
Volume	444
State	Published - Sep 27 2024
Event	38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan Duration: Jul 26 2023 → Aug 3 2023

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@article{600ca480bcd74a919e53943e08610857,

title = "Investigating the Low State of NGC 1275 with VERITAS and Fermi-LAT Observations",

abstract = "The VERITAS observatory is a ground-based imaging atmospheric Cherenkov telescope array that detects very-high-energy (VHE; E>100 GeV) gamma-ray emission from a range of astrophysical sources including more than ∼40 Active Galactic Nuclei (AGN). Very few radio galaxies, AGN with relativistic jets oriented at angles offset to our line-of-sight, are detected at VHE including NGC 1275 (3C 84), the central galaxy in the Perseus cluster (z∼0.0176). NGC 1275 has a long history of observations across all wavebands, and a complex morphology that has evolved with time. The origin of the TeV emission in NGC 1275 in both the flaring and non-flaring states is still not entirely understood. A VERITAS study of a January 2017 flare finds that a multi-component model is required to fit the multi-wavelength spectral energy distribution (SED). In this study, we present the EBL-corrected, Compton SED peak in the non-flaring state of NGC 1275 constructed with simultaneous VERITAS and Fermi-LAT observations over the period 2012-2017.",

author = "{VERITAS collaboration} and Talluri, {Anjana Kaushik} and A. Acharyya and Adams, {C. B.} and A. Archer and P. Bangale and Bartkoske, {J. T.} and P. Batista and W. Benbow and Christiansen, {J. L.} and Chromey, {A. J.} and A. Duerr and M. Errando and Q. Feng and Foote, {G. M.} and L. Fortson and A. Furniss and C. Hahn and W. Hanlon and O. Hervet and Hinrichs, {C. E.} and J. Hoang and J. Holder and Z. Hughes and Humensky, {T. B.} and W. Jin and Johnson, {M. N.} and M. Kertzman and M. Kherlakian and D. Kieda and Kleiner, {T. K.} and N. Korzoun and S. Kumar and Lang, {M. J.} and M. Lundy and G. Maier and McGrath, {C. E.} and Meyer, {E. T.} and Millard, {M. J.} and Mooney, {C. L.} and P. Moriarty and R. Mukherjee and S. O{\textquoteright}Brien and Ong, {R. A.} and N. Park and C. Poggemann and M. Pohl and E. Pueschel and J. Quinn and D. Ribeiro and Talluri, {Anjana Kaushik}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 38th International Cosmic Ray Conference, ICRC 2023 ; Conference date: 26-07-2023 Through 03-08-2023",

year = "2024",

month = sep,

day = "27",

language = "English (US)",

volume = "444",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Investigating the Low State of NGC 1275 with VERITAS and Fermi-LAT Observations

AU - VERITAS collaboration

AU - Talluri, Anjana Kaushik

AU - Acharyya, A.

AU - Adams, C. B.

AU - Archer, A.

AU - Bangale, P.

AU - Bartkoske, J. T.

AU - Batista, P.

AU - Benbow, W.

AU - Christiansen, J. L.

AU - Chromey, A. J.

AU - Duerr, A.

AU - Errando, M.

AU - Feng, Q.

AU - Foote, G. M.

AU - Fortson, L.

AU - Furniss, A.

AU - Hahn, C.

AU - Hanlon, W.

AU - Hervet, O.

AU - Hinrichs, C. E.

AU - Hoang, J.

AU - Holder, J.

AU - Hughes, Z.

AU - Humensky, T. B.

AU - Jin, W.

AU - Johnson, M. N.

AU - Kertzman, M.

AU - Kherlakian, M.

AU - Kieda, D.

AU - Kleiner, T. K.

AU - Korzoun, N.

AU - Kumar, S.

AU - Lang, M. J.

AU - Lundy, M.

AU - Maier, G.

AU - McGrath, C. E.

AU - Meyer, E. T.

AU - Millard, M. J.

AU - Mooney, C. L.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - O’Brien, S.

AU - Ong, R. A.

AU - Park, N.

AU - Poggemann, C.

AU - Pohl, M.

AU - Pueschel, E.

AU - Quinn, J.

AU - Ribeiro, D.

AU - Talluri, Anjana Kaushik

PY - 2024/9/27

Y1 - 2024/9/27

N2 - The VERITAS observatory is a ground-based imaging atmospheric Cherenkov telescope array that detects very-high-energy (VHE; E>100 GeV) gamma-ray emission from a range of astrophysical sources including more than ∼40 Active Galactic Nuclei (AGN). Very few radio galaxies, AGN with relativistic jets oriented at angles offset to our line-of-sight, are detected at VHE including NGC 1275 (3C 84), the central galaxy in the Perseus cluster (z∼0.0176). NGC 1275 has a long history of observations across all wavebands, and a complex morphology that has evolved with time. The origin of the TeV emission in NGC 1275 in both the flaring and non-flaring states is still not entirely understood. A VERITAS study of a January 2017 flare finds that a multi-component model is required to fit the multi-wavelength spectral energy distribution (SED). In this study, we present the EBL-corrected, Compton SED peak in the non-flaring state of NGC 1275 constructed with simultaneous VERITAS and Fermi-LAT observations over the period 2012-2017.

AB - The VERITAS observatory is a ground-based imaging atmospheric Cherenkov telescope array that detects very-high-energy (VHE; E>100 GeV) gamma-ray emission from a range of astrophysical sources including more than ∼40 Active Galactic Nuclei (AGN). Very few radio galaxies, AGN with relativistic jets oriented at angles offset to our line-of-sight, are detected at VHE including NGC 1275 (3C 84), the central galaxy in the Perseus cluster (z∼0.0176). NGC 1275 has a long history of observations across all wavebands, and a complex morphology that has evolved with time. The origin of the TeV emission in NGC 1275 in both the flaring and non-flaring states is still not entirely understood. A VERITAS study of a January 2017 flare finds that a multi-component model is required to fit the multi-wavelength spectral energy distribution (SED). In this study, we present the EBL-corrected, Compton SED peak in the non-flaring state of NGC 1275 constructed with simultaneous VERITAS and Fermi-LAT observations over the period 2012-2017.

UR - http://www.scopus.com/inward/record.url?scp=85212291532&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85212291532&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85212291532

SN - 1824-8039

VL - 444

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 661

T2 - 38th International Cosmic Ray Conference, ICRC 2023

Y2 - 26 July 2023 through 3 August 2023

ER -

Investigating the Low State of NGC 1275 with VERITAS and Fermi-LAT Observations

Abstract

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