Temporal and Spectral Analysis of 1ES 2344+514 in Two Flaring States Observed by VERITAS

VERITAS Collaboration

Temporal and Spectral Analysis of 1ES 2344+514 in Two Flaring States Observed by VERITAS

VERITAS Collaboration

Department of Physics

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

Abstract

VERITAS observed the bright blazar 1ES 2344+514 during two flaring periods, one from Dec. 17 to Dec. 18, 2015 (MJD 57373-57374) with a peak flux of ∼60% of the Crab and another from Nov. 28 to Dec. 3, 2021 (MJD 59546-59551) with a peak flux of ∼20% of the Crab. This blazar, located at a redshift of z = 0.044, is classified as an extreme high-frequency-peaked BL Lacertae object (HBL). It is known to be variable, including several previous day-scale flares: Whipple on Dec. 20, 1995, VERITAS on Dec. 7, 2007, and MAGIC on Aug. 11, 2016. The VERITAS near-nightly monitoring of 1ES 2344+514 during the 2015-2016 and 2021-2022 seasons provides good coverage of the pre- and post-flare flux as well as the rise/fall time of the flares. We present the multiwavelength light curves of each flare as well as the very high-energy spectra in the two flare states and the two pre-flare states.

Original language	English
Article number	667
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{fcf44d9fa08d431bbae39798423d962b,

title = "Temporal and Spectral Analysis of 1ES 2344+514 in Two Flaring States Observed by VERITAS",

abstract = "VERITAS observed the bright blazar 1ES 2344+514 during two flaring periods, one from Dec. 17 to Dec. 18, 2015 (MJD 57373-57374) with a peak flux of ∼60\% of the Crab and another from Nov. 28 to Dec. 3, 2021 (MJD 59546-59551) with a peak flux of ∼20\% of the Crab. This blazar, located at a redshift of z = 0.044, is classified as an extreme high-frequency-peaked BL Lacertae object (HBL). It is known to be variable, including several previous day-scale flares: Whipple on Dec. 20, 1995, VERITAS on Dec. 7, 2007, and MAGIC on Aug. 11, 2016. The VERITAS near-nightly monitoring of 1ES 2344+514 during the 2015-2016 and 2021-2022 seasons provides good coverage of the pre- and post-flare flux as well as the rise/fall time of the flares. We present the multiwavelength light curves of each flare as well as the very high-energy spectra in the two flare states and the two pre-flare states.",

author = "\{VERITAS Collaboration\} and Connor Poggemann and Jodi Christiansen 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 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 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 Rabinowitz, \{P. L.\} and K. Ragan and Reynolds, \{P. T.\} and D. Ribeiro and E. Roache and Ryan, \{J. L.\} and I. Sadeh and L. Saha and M. Santander and Sembroski, \{G. H.\} and R. Shang and M. Splettstoesser and Talluri, \{A. K.\} and Tucci, \{J. V.\} and Vassiliev, \{V. V.\} and A. Weinstein and Williams, \{D. A.\} and Wong, \{S. L.\} and J. Woo",

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",

volume = "444",

journal = "Proceedings of Science",

issn = "1824-8039",

}

TY - JOUR

T1 - Temporal and Spectral Analysis of 1ES 2344+514 in Two Flaring States Observed by VERITAS

AU - VERITAS Collaboration

AU - Poggemann, Connor

AU - Christiansen, Jodi

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 - 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 - 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 - Rabinowitz, P. L.

AU - Ragan, K.

AU - Reynolds, P. T.

AU - Ribeiro, D.

AU - Roache, E.

AU - Ryan, J. L.

AU - Sadeh, I.

AU - Saha, L.

AU - Santander, M.

AU - Sembroski, G. H.

AU - Shang, R.

AU - Splettstoesser, M.

AU - Talluri, A. K.

AU - Tucci, J. V.

AU - Vassiliev, V. V.

AU - Weinstein, A.

AU - Williams, D. A.

AU - Wong, S. L.

AU - Woo, J.

PY - 2024/9/27

Y1 - 2024/9/27

N2 - VERITAS observed the bright blazar 1ES 2344+514 during two flaring periods, one from Dec. 17 to Dec. 18, 2015 (MJD 57373-57374) with a peak flux of ∼60% of the Crab and another from Nov. 28 to Dec. 3, 2021 (MJD 59546-59551) with a peak flux of ∼20% of the Crab. This blazar, located at a redshift of z = 0.044, is classified as an extreme high-frequency-peaked BL Lacertae object (HBL). It is known to be variable, including several previous day-scale flares: Whipple on Dec. 20, 1995, VERITAS on Dec. 7, 2007, and MAGIC on Aug. 11, 2016. The VERITAS near-nightly monitoring of 1ES 2344+514 during the 2015-2016 and 2021-2022 seasons provides good coverage of the pre- and post-flare flux as well as the rise/fall time of the flares. We present the multiwavelength light curves of each flare as well as the very high-energy spectra in the two flare states and the two pre-flare states.

AB - VERITAS observed the bright blazar 1ES 2344+514 during two flaring periods, one from Dec. 17 to Dec. 18, 2015 (MJD 57373-57374) with a peak flux of ∼60% of the Crab and another from Nov. 28 to Dec. 3, 2021 (MJD 59546-59551) with a peak flux of ∼20% of the Crab. This blazar, located at a redshift of z = 0.044, is classified as an extreme high-frequency-peaked BL Lacertae object (HBL). It is known to be variable, including several previous day-scale flares: Whipple on Dec. 20, 1995, VERITAS on Dec. 7, 2007, and MAGIC on Aug. 11, 2016. The VERITAS near-nightly monitoring of 1ES 2344+514 during the 2015-2016 and 2021-2022 seasons provides good coverage of the pre- and post-flare flux as well as the rise/fall time of the flares. We present the multiwavelength light curves of each flare as well as the very high-energy spectra in the two flare states and the two pre-flare states.

UR - https://www.scopus.com/pages/publications/85212256766

M3 - Conference article

AN - SCOPUS:85212256766

SN - 1824-8039

VL - 444

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 667

T2 - 38th International Cosmic Ray Conference, ICRC 2023

Y2 - 26 July 2023 through 3 August 2023

ER -

Temporal and Spectral Analysis of 1ES 2344+514 in Two Flaring States Observed by VERITAS

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