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VERITAS Observations Contemporaneous with the LHAASO Detection of NGC 4278

  • Authors: A. Archer, P. Bangale, J. T. Bartkoske, W. Benbow, J. H. Buckley, Y. Chen, J. L. Christiansen, A. J. Chromey, A. Duerr, M. Errando, M. Escobar Godoy, S. Feldman, Q. Feng, S. Filbert, L. Fortson, A. Furniss, W. Hanlon, O. Hervet, C. E. Hinrichs, J. Holder, Z. Hughes, T. B. Humensky, M. Iskakova, W. Jin, M. N. Johnson, M. Kertzman, M. Kherlakian, D. Kieda, T. K. Kleiner, N. Korzoun, S. Kumar, S. Kundu, M. J. Lang, M. Lundy, G. Maier, C. McSorley, P. Moriarty, R. Mukherjee, W. Ning, S. O'Brien, M. Ohishi, R. A. Ong, A. Pandey, C. Poggemann, M. Pohl, E. Pueschel, J. Quinn, P. L. Rabinowitz, K. Ragan, P. T. Reynolds, D. Ribeiro, L. Rizk, E. Roache, I. Sadeh, L. Saha, H. Salzmann, M. Santander, G. H. Sembroski, R. Shang, M. Splettstoesser, D. Tak, A. K. Talluri, I. Thoreson, J. V. Tucci, J. Valverde, D. A. Williams, S. L. Wong, T. Yoshikoshi

A. Archer et al 2026 The Astrophysical Journal 1001 .

  • Provider: AAS Journals

Caption: Figure 1.

VERITAS sky map from observations of 1ES 1218+304, 1ES 1215+303, and W Comae contemporaneous with the LHAASO analysis. The location of each source, including NGC 4278, is marked on the map with a “+” symbol, and the point-spread function is shown in the bottom right. There is no evidence for the detection of NGC 4278 in the VERITAS sky map. A background fluctuation with a pretrial significance of 3.1σ can be seen 0﹩\mathop{.}\limits^{\unicode{x000b0}}﹩15 below the location of NGC 4278.

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