费米-LAT前十年数据中的长期瞬变源星表
高能天体物理现象
2021-09-29 v1
摘要
我们呈现了首个费米大面积望远镜（LAT）长期射线瞬变源星表（1FLT）。该星表包含在费米-LAT运行首个十年期间以月为时间间隔探测到的源。月时间尺度使我们能够识别在其他费米-LAT星表中尚未报道的瞬变与变源。月度数据集使用基于小波的信源探测算法进行分析，该算法提供了候选新瞬变源。搜索限于天区的河外区域，以避免低银纬处银河系弥漫辐射的主导。随后使用标准费米-LAT最大似然分析方法对瞬变候选源进行分析。所有在至少一个月度区间中以高于4统计显著性探测到的源均列入最终星表。1FLT星表包含142个未收录于4FGL-DR2星表中的瞬变射线源。其中许多源（102个）已可靠地证认为活动星系核（AGN）：24个证认为平谱射电类星体；1个为BL Lac天体；70个为不确定类型耀变体；3个为射电星系；1个为致密陡谱射电源；1个为陡谱射电类星体；2个为其他类型AGN。其余40个源在其他波段无候选对应体。1FLT-AGN源的射线谱指数中值比较最新费米-LAT AGN总星表所报更软。该结果与如下假设一致：当数据在长达数年的间隔上积分时，对最软射线发射体的探测效率较低。
引用
@article{arxiv.2106.00100,
title = {Catalog of Long-Term Transient Sources in the First 10 Years of Fermi-LAT Data},
author = {L. Baldini and J. Ballet and D. Bastieri and J. Becerra Gonzalez and R. Bellazzini and A. Berretta and E. Bissaldi and R. D. Blandford and E. D. Bloom and R. Bonino and E. Bottacini and P. Bruel and S. Buson and R. A. Cameron and P. A. Caraveo and E. Cavazzuti and S. Chen and G. Chiaro and D. Ciangottini and S. Ciprini and P. Cristarella Orestano and M. Crnogorcevic and S. Cutini and F. D'Ammando and P. de la Torre Luque and F. de Palma and S. W. Digel and N. Di Lalla and F. Dirirsa and L. Di Venere and A. Domínguez and A. Fiori and H. Fleischhack and A. Franckowiak and Y. Fukazawa and S. Funk and P. Fusco and F. Gargano and D. Gasparrini and S. Germani and N. Giglietto and F. Giordano and M. Giroletti and D. Green and I. A. Grenier and S. Griffin and S. Guiriec and M. Gustafsson and J. W. Hewitt and D. Horan and R. Imazawa and G. Jóhannesson and M. Kerr and D. Kocevski and M. Kuss and S. Larsson and L. Latronico and J. Li and I. Liodakis and F. Longo and F. Loparco and M. N. Lovellette and P. Lubrano and S. Maldera and A. Manfreda and G. Martí-Devesa and H. Matake and M. N. Mazziotta and I. Mereu and M. Meyer and N. Mirabal and W. Mitthumsiri and T. Mizuno and M. E. Monzani and A. Morselli and I. V. Moskalenko and S. Nagasawa and M. Negro and R. Ojha and M. Orienti and E. Orlando and M. Palatiello and V. Paliya and D. Paneque and Z. Pei and M. Persic and M. Pesce-Rollins and V. Petrosian and H. Poon and T. A. Porter and G. Principe and J. L. Racusin and S. Rainò and R. Rando and B. Rani and M. Razzano and S. Razzaque and A. Reimer and O. Reimer and P. M. Saz Parkinson and L. Scotton and D. Serini and C. Sgrò and E. J. Siskind and G. Spandre and P. Spinelli and D. J. Suson and H. Tajima and D. Tak and D. F. Torres and G. Tosti and E. Troja and K. Wood and M. Yassine and G. Zaharijas},
journal= {arXiv preprint arXiv:2106.00100},
year = {2021}
}
备注
41 pages, 17 figures, 7 tables; Accepted by ApJS on 24 May 2021; Contact Authors: I. Mereu, S. Cutini, E. Cavazzuti, G. Tosti