TEV Blazar 1ES 1ES 1215+303的多波长观察十年：同步加速器峰频率的极端变化和长期光学粉红色射线通量增加

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TEV Blazar 1ES 1ES 1215+303的多波长观察十年：同步加速器峰频率的极端变化和长期光学粉红色射线通量增加

A decade of multi-wavelength observations of the TeV blazar 1ES 1215+303: Extreme shift of the synchrotron peak frequency and long-term optical-gamma-ray flux increase

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Valverde, Janeth, Horan, Deirdre, Bernard, Denis, Fegan, Stephen, Abeysekara, A. U., Archer, A., Benbow, W., Bird, R., Brill, A., Brose, R., Buchovecky, M., Buckley, J. H., Christiansen, J. L., Cui, W., Falcone, A., Feng, Q., Finley, J. P., Fortson, L., Furniss, A., Gent, A., Gillanders, G. H., Giuri, C., Gueta, O., Hanna, D., Hassan, T., Hervet, O., Holder, J., Hughes, G., Humensky, T. B., Kaaret, P., Kelley-Hoskins, N., Kertzman, M., Kieda, D., Krause, M., Krennrich, F., Lang, M. J., Maier, G., Moriarty, P., Mukherjee, R., Nieto, D., Nievas-Rosillo, M., O'Brien, S., Ong, R. A., Otte, A. N., Park, N., Petrashyk, A., Pfrang, K., Pichel, A., Pohl, M., Prado, R. R., Pueschel, E., Quinn, J., Ragan, K., Reynolds, P. T., Ribeiro, D., Richards, G. T., Roache, E., Sadeh, I., Santander, M., Scott, S. S., Sembroski, G. H., Shahinyan, K., Shang, R., Sushch, I., Vassiliev, V. V., Weinstein, A., Wells, R. M., Wilcox, P., Wilhelm, A., Williams, D. A., Williamson, T. J, Noto, Giuliana, Edwards, P. G., Piner, B. G., Ramazani, V. Fallah, Hovatta, T., Jormanainen, J., Lindfors, E., Nilsson, K., Takalo, L., Kovalev, Y. Y., Lister, M. L., Pushkarev, A. B., Savolainen, T., Kiehlmann, S., Max-Moerbeck, W., Readhead, A. C. S., Lähteenmäki, A., Tornikoski, M.

论文摘要

Blazars以在所有波长的各个时间尺度上的变化而闻名。 TEV Gamma-ray Blazars的大多数研究都集中在短时间，尤其是在耀斑期间。有了十年来从费米 - 拉特和veritas进行观察，我们对长期多波长无线电 - 射线 - 射线磁通密度的可变性进行了广泛的研究，并增加了几个短期的无线电结构和光学极化观察结果，对Blazar 1ES 1215+303（z = 0.130）（Z = 0.130），并以100 MEISCOM ASIS gomay for Emaa-ama-ama-ama-ama-ama-ama-ama-ray。在十年中，观察到了多个强大的GEV伽马射线耀斑，伽马射线和光通量基线的长期增加和光通量基线以及这两个频段之间的线性相关性。典型的HBL行为在源的无线电形态和宽带光谱中确定。 VLBA以43.1、22.2和15.3 GHz解决了最终喷气式飞机的三个固定功能。我们采用两个组件同步加速器自占模型来描述源的不同通量状态，包括时期，在此期间观察到同步峰峰频率从红外向软X射线的极端变化。

Blazars are known for their variability on a wide range of timescales at all wavelengths. Most studies of TeV gamma-ray blazars focus on short timescales, especially during flares. With a decade of observations from the Fermi-LAT and VERITAS, we present an extensive study of the long-term multi-wavelength radio-to-gamma-ray flux-density variability, with the addition of a couple of short-time radio-structure and optical polarization observations of the blazar 1ES 1215+303 (z=0.130), with a focus on its gamma-ray emission from 100 MeV to 30 TeV. Multiple strong GeV gamma-ray flares, a long-term increase in the gamma-ray and optical flux baseline and a linear correlation between these two bands are observed over the ten-year period. Typical HBL behaviors are identified in the radio morphology and broadband spectrum of the source. Three stationary features in the innermost jet are resolved by VLBA at 43.1, 22.2, and 15.3 GHz. We employ a two-component synchrotron self-Compton model to describe different flux states of the source, including the epoch during which an extreme shift in energy of the synchrotron peak frequency from infrared to soft X-rays is observed.

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