Do All Fast Radio Bursts Repeat? Constraints from CHIME/FRB Far Sidelobe FRBs

被引：3

作者：

Lin, Hsiu-Hsien ^{[1
,2
]}

Scholz, Paul ^{[3
,4
]}

Ng, Cherry ^{[3
,5
]}

Pen, Ue-Li ^{[1
,2
,3
,6
,7
]}

Bhardwaj, Mohit ^{[8
]}

Chawla, Pragya ^{[9
]}

Curtin, Alice P. ^{[10
,11
]}

Li, Dongzi ^{[12
]}

Newburgh, Laura ^{[13
]}

Reda, Alex ^{[13
]}

Sand, Ketan R. ^{[10
,11
]}

Tendulkar, Shriharsh P. ^{[14
,15
]}

Andersen, Bridget ^{[10
,11
]}

Bandura, Kevin ^{[16
,17
]}

Brar, Charanjot ^{[10
,11
]}

Cassanelli, Tomas ^{[18
]}

Cook, Amanda M. ^{[3
,19
]}

Dobbs, Matt ^{[10
,11
]}

Dong, Fengqiu Adam ^{[20
]}

Eadie, Gwendolyn ^{[19
,21
]}

Fonseca, Emmanuel ^{[17
,22
]}

Gaensler, B. M. ^{[3
,19
]}

Giri, Utkarsh ^{[23
]}

Herrera-Martin, Antonio ^{[19
]}

Hill, Alex S. ^{[24
,25
]}

Kaczmarek, Jane ^{[25
,26
]}

Kania, Joseph ^{[17
,22
]}

Kaspi, Victoria ^{[10
,11
]}

Khairy, Kholoud ^{[16
,17
]}

Lanman, Adam E. ^{[10
,11
]}

Leung, Calvin ^{[27
,28
]}

Masui, Kiyoshi W. ^{[27
,28
]}

Mena-Parra, Juan ^{[3
,19
]}

Meyers, Bradley Ward ^{[29
]}

Michilli, Daniele ^{[27
,28
]}

Milutinovic, Nikola ^{[20
]}

Ordog, Anna ^{[24
,25
]}

Pearlman, Aaron B. ^{[10
,11
]}

Pleunis, Ziggy ^{[3
]}

Rafiei-Ravandi, Masoud ^{[10
,11
]}

Rahman, Mubdi ^{[30
]}

Ransom, Scott ^{[31
]}

Sanghavi, Pranav ^{[13
]}

Shin, Kaitlyn ^{[27
,28
]}

Smith, Kendrick ^{[7
]}

Stairs, Ingrid ^{[20
]}

Stenning, David C. ^{[32
]}

Vanderlinde, Keith ^{[3
,19
]}

Wulf, Dallas ^{[10
,11
]}

机构：

[1] Acad Sinica, Inst Astron & Astrophys, Astron Math Bldg,1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan

[2] Canadian Inst Theoret Astrophys, 60 St George St, Toronto, ON M5S 3H8, Canada

[3] Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

[4] York Univ, 4700 Keele St, York, ON MJ3 1P3, Canada

[5] Univ Orleans, CNRS, Lab Phys & Chim Environm & Espace, F-45071 Orleans 02, France

[6] Canadian Inst Adv Res, West Tower,661 Univ Ave,Suite 505, Toronto, ON M5G 1M1, Canada

[7] Perimeter Inst Theoret Phys, Waterloo, ON N25 2YL, Canada

[8] Carnegie Mellon Univ, Dept Phys, 5000 Forbes Ave, Pittsburgh, PA 15213 USA

[9] Univ Amsterdam, Anton Pannekoek Inst Astron, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands

[10] McGill Univ, Trottier Space Inst, 3550 Rue Univ, Montreal, PQ H3A 2A7, Canada

[11] McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada

[12] CALTECH, Cahill Ctr Astron & Astrophys, 1216 E Calif Blvd, Pasadena, CA 91125 USA

[13] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[14] Tata Inst Fundamental Res, Dept Astron & Astrophys, Mumbai 400005, India

[15] Natl Ctr Radio Astrophys, Post Bag 3, Pune 411007, India

[16] West Virginia Univ, 1220 Evansdale Dr,POB 6109, Morgantown, VA USA

[17] West Virginia Univ, Ctr Gravitat Waves & Cosmol, Chestnut Ridge Res Bldg, Morgantown, WV 26505 USA

[18] Univ Chile, Dept Elect Engn, Ave Tupper 2007, Santiago 8370451, Chile

[19] Univ Toronto, David A Dunlap Dept Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

[20] Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada

[21] Univ Toronto, Dept Stat Sci, Toronto, ON M5S 3G3, Canada

[22] West Virginia Univ, Dept Phys & Astron, POB 6315, Morgantown, WV 26506 USA

[23] Univ Wisconsin Madison, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA

[24] Univ British Columbia, Dept Comp Sci Math Phys & Stat, Okanagan Campus, Kelowna, BC V1V 1V7, Canada

[25] Natl Res Council Canada, Herzberg Res Ctr Astron & Astrophys, Domin Radio Astrophys Observ, POB 248, Penticton, BC V2A 6J9, Canada

[26] CSIRO Space & Astron, Pk Observ, POB 276, Parkes, NSW 2870, Australia

[27] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA USA

[28] MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[29] Curtin Univ, Bentley, WA 6102, Australia

[30] Sidrat Res, 124 Merton St,Suite 507, Toronto, ON M4S 2Z2, Canada

[31] Natl Radio Astron Observ, 520 Edgemont Rd, Charlottesville, VA 22903 USA

[32] Simon Fraser Univ, Dept Stat & Actuarial Sci, Burnaby, BC, Canada

来源：

ASTROPHYSICAL JOURNAL | 2024年 / 975卷 / 01期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

DENSITY; UNIVERSE; CATALOG; HOST; DISTRIBUTIONS; DISPERSION; TELESCOPE; DIRECTION; REDSHIFT; ASTROPY;

D O I：

10.3847/1538-4357/ad779d

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report 10 fast radio bursts (FRBs) detected in the far sidelobe region (i.e., >= 5 degrees off-meridian) of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) from August 28 2018 to August 31 2021. We localize the bursts by fitting their spectra with a model of the CHIME/FRB synthesized beam response. We find that the far sidelobe events have on average similar to 500 times greater fluxes than events detected in CHIME's main lobe. We show that the sidelobe sample is therefore statistically similar to 20 times closer than the main lobe sample. We find promising host galaxy candidates (P-cc<1%) for two of the FRBs, 20190112B and 20210310B, at distances of 38 and 16 Mpc, respectively. CHIME/FRB did not observe repetition of similar brightness from the uniform sample of 10 sidelobe FRBs in a total exposure time of 35,580 hr. Under the assumption of Poisson-distributed bursts, we infer that the mean repetition interval above the detection threshold of the far sidelobe events is longer than 11,880 hr, which is at least 2380 times larger than the interval from known CHIME/FRB detected repeating sources, with some caveats, notably that very narrowband events could have been missed. Our results from these far sidelobe events suggest one of two scenarios: either (1) all FRBs repeat and the repetition intervals span a wide range, with high-rate repeaters being a rare sub-population, or (2) non-repeating FRBs are a distinct population different from known repeaters.

引用

页数：25

共 11 条

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