MAGIC 对天鹅座 X-3 伽马射线发射的限制
高能天体物理现象
2014-11-21 v2
摘要
天鹅座 X-3 是一个微类星体，由一个围绕沃尔夫-拉叶星运行的吸积致密天体组成。它已在射电频率以及高能伽马射线（高于 100 MeV）波段被探测到。然而，许多模型也预测当源显示出相对论性持续喷流或瞬态抛射时，会产生甚高能（VHE）发射（高于数百 GeV）。因此，探测到这种发射将增进对喷流物理的理解。成像大气切伦科夫望远镜 MAGIC 在 2006 年 3 月至 2009 年 8 月期间，在不同的 X 射线/射电谱态以及伽马射线发射增强期间，对天鹅座 X-3 进行了约 70 小时的观测。MAGIC 未发现来自该微类星体方向的甚高能信号证据。对能量高于 250 GeV 的积分通量上限设定为 2.2 × 10⁻¹² 光子 cm⁻² s⁻¹（95% 置信水平）。这是迄今为止对该源甚高能发射的最佳限制。在高能波段活动期间未探测到甚高能信号，这揭示了可能产生甚高能辐射的位置，支持了辐射来自喷流最内部区域的观点，该区域吸收显著。当前及未来一代的切伦科夫望远镜可能在精确的光谱条件下探测到信号。
引用
@article{arxiv.1005.0740,
title = {Magic constraints on Gamma-ray emission from Cygnus X-3},
author = {J. Aleksić and L. A. Antonelli and P. Antoranz and M. Backes and C. Baixeras and J. A. Barrio and D. Bastieri and J. Becerra González and W. Bednarek and A. Berdyugin and K. Berger and E. Bernardini and A. Biland and O. Blanch and R. K. Bock and A. Boller and G. Bonnoli and P. Bordas and D. Borla Tridon and V. Bosch-Ramon and D. Bose and I. Braun and T. Bretz and D. Britzger and M. Camara and E. Carmona and A. Carosi and P. Colin and J. L. Contreras and J. Cortina and M. T. Costado and S. Covino and F. Dazzi and A. De Angelis and E. De Cea del Pozo and B. De Lotto and M. De Maria and F. De Sabata and C. Delgado Mendez and M. Doert and A. Domínguez and D. Dominis Prester and D. Dorner and M. Doro and D. Elsaesser and M. Errando and D. Ferenc and M. V. Fonseca and L. Font and R. J. García López and M. Garczarczyk and M. Gaug and N. Godinovic and F. Göebel and D. Hadasch and A. Herrero and D. Hildebrand and D. Höhne-Mönch and J. Hose and D. Hrupec and C. C. Hsu and T. Jogler and S. Klepser and T. Krähenbühl and D. Kranich and A. La Barbera and A. Laille and E. Leonardo and E. Lindfors and S. Lombardi and F. Longo and M. López and E. Lorenz and P. Majumdar and G. Maneva and N. Mankuzhiyil and K. Mannheim and L. Maraschi and M. Mariotti and M. Martínez and D. Mazin and M. Meucci and J. M. Miranda and R. Mirzoyan and H. Miyamoto and J. Moldón and M. Moles and A. Moralejo and D. Nieto and K. Nilsson and J. Ninkovic and R. Orito and I. Oya and S. Paiano and R. Paoletti and J. M. Paredes and S. Partini and M Pasanen and D. Pascoli and F. Pauss and R. G. Pegna and M. A. Perez-Torres and M. Persic and L. Peruzzo and F. Prada and E. Prandini and N. Puchades and I. Puljak and I. Reichardt and W. Rhode and M. Ribó and J. Rico and M Rissi and S. Rügamer and A. Saggion and K. Saito and T. Y. Saito and M. Salvati and M. Sánchez-Conde and K. Satalecka and V. Scalzotto and V. Scapin and C. Schultz and T. Schweizer and M. Shayduk and S. N. Shore and A. Sierpowska-Bartosik and A. Sillanpää and J. Sitarek and D. Sobczynska and F. Spanier and S. Spiro and A. Stamerra and B. Steinke and J. C. Struebig and T. Suric and L. Takalo and F. Tavecchio and P. Temnikov and T. Terzic and D. Tescaro and M. Teshima and D. F. Torres and H. Vankov and R. M. Wagner and Q. Weitzel and V. Zabalza and F. Zandanel and R. Zanin and A. Bulgarelli and W. Max-Moerbeck and G. Piano and G. Pooley and A. C. S. Readhead and J. L. Richards and S. Sabatini and E. Striani and M. Tavani and S. Trushkin},
journal= {arXiv preprint arXiv:1005.0740},
year = {2014}
}
备注
14 pages, 11 figures, This manuscript has been accepted by ApJ (2010)