Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes
文献类型：期刊论文
| 作者 | Andreoni, I.1,2,3; Ackley, K.2,4,5; Cooke, J.1,2,6; Acharyya, A.7,15; Allison, J. R.8,9; Anderson, G. E.10; Ashley, M. C. B.11; Baade, D.12; Bailes, M.1,2; Bannister, K.13 |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
 |
| 出版日期 | 2017-12-20 |
| 卷号 | 34页码:21 |
| ISSN号 | 1323-3580 |
| 关键词 | gamma-ray burst: individual: GRB170817A gravitational waves stars: neutron supernovae: general supernovae: individual: AT2017gfo |
| DOI | 10.1017/pasa.2017.65 |
| 通讯作者 | Andreoni, I.(igor.andreoni@gmail.com) |
| 英文摘要 | The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era of multi-messenger astronomy. In this paper, we present follow-up observations of the gravitational wave event GW170817 and its electromagnetic counterpart SSS17a/DLT17ck (IAU label AT2017gfo) by 14 Australian telescopes and partner observatories as part of Australian-based and Australian-led research programs. We report early- to late-time multi-wavelength observations, including optical imaging and spectroscopy, mid-infrared imaging, radio imaging, and searches for fast radio bursts. Our optical spectra reveal that the transient source emission cooled from approximately 6 400 K to 2 100 K over a 7-d period and produced no significant optical emission lines. The spectral profiles, cooling rate, and photometric light curves are consistent with the expected outburst and subsequent processes of a binary neutron star merger. Star formation in the host galaxy probably ceased at least a Gyr ago, although there is evidence for a galaxy merger. Binary pulsars with short (100 Myr) decay times are therefore unlikely progenitors, but pulsars like PSR B1534+12 with its 2.7 Gyr coalescence time could produce such a merger. The displacement (similar to 2.2 kpc) of the binary star system from the centre of the main galaxy is not unusual for stars in the host galaxy or stars originating in the merging galaxy, and therefore any constraints on the kick velocity imparted to the progenitor are poor. |
| WOS关键词 | GAMMA-RAY BURSTS ; COMPACT OBJECT MERGERS ; ACCRETING BLACK-HOLES ; KILONOVA LIGHT CURVES ; NEUTRON-STAR MERGER ; FUNDAMENTAL PLANE ; HOST GALAXY ; RADIO-BURST ; AFTERGLOW ; TELESCOPE |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| WOS记录号 | WOS:000418457200001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/22538]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Andreoni, I. |
| 作者单位 | 1.Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218 H29, Hawthorn, Vic 3122, Australia 2.Australian Res Council, Ctr Excellence Gravitat Wave Discovery OzGrav, Canberra, ACT, Australia 3.Australian Astron Observ, 105 Delhi Rd, N Ryde, NSW 2113, Australia 4.Monash Univ, Monash Ctr Astrophys, Clayton, Vic 3800, Australia 5.Monash Univ, Sch Phys & Astron, Clayton, Vic 3800, Australia 6.Australian Res Council, Ctr Excellence All Sky Astrophys CAASTRO, Canberra, ACT, Australia 7.Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia 8.Univ Sydney, Sch Phys, Sydney Inst Astron, Sydney, NSW 2006, Australia 9.Australian Res Council, Ctr Excellence All Sky Astrophys Dimens ASTRO 3D, Canberra, ACT, Australia 10.Curtin Univ, Int Ctr Radio Astron Res, Bentley, WA 6102, Australia |
| 推荐引用方式 GB/T 7714 | Andreoni, I.,Ackley, K.,Cooke, J.,et al. Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,2017,34:21. |
| APA | Andreoni, I..,Ackley, K..,Cooke, J..,Acharyya, A..,Allison, J. R..,...&Zovaro, H..(2017).Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA,34,21. |
| MLA | Andreoni, I.,et al."Follow Up of GW170817 and Its Electromagnetic Counterpart by Australian-Led Observing Programmes".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA 34(2017):21. |
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来源：紫金山天文台
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