Interpreting the distributions of FRB observables

被引：44

作者：

Connor, Liam ^{[1
]}

机构：

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

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2019年 / 487卷 / 04期

基金：

欧洲研究理事会;

关键词：

methods: statistical; pulsars: general; radio continuum: transients; FAST RADIO-BURSTS; EVENT RATE COUNTS; TURBULENCE; REDSHIFT; FLUENCE; LIMITS; MHZ;

D O I：

10.1093/mnras/stz1666

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Fast radio bursts (FRBs) are short-duration radio transients of unknown origin. Thus far, they have been blindly detected at millisecond time-scales with dispersion measures (DMs) between 110 and 2600pccm(-3). However, the observed pulse width, DM, and even brightness distributions depend strongly on the time and frequency resolution of the detection instrument. Spectral and temporal resolution also significantly affect FRB detection rates, similar to beam size and system-equivalent flux density. I discuss the interplay between underlying FRB properties and instrumental response, and provide a generic formalism for calculating the observed distributions of parameters given an intrinsic FRB distribution, focusing on pulse width and DM. I argue that if there exist many FRBs of duration <<1ms (as with giant pulses from Galactic pulsars) or events with high DM, they are being missed due to the deleterious effects of smearing. I outline how to optimize the spectral and temporal resolution for FRB surveys that are throughput-limited. I also investigate how such effects may have been imprinted on the distributions of FRBs at real telescopes, like the different observed DMs at ASKAP and Parkes. Finally, I discuss the impact of intrinsic correlations between FRB parameters on detection statistics.

引用

页码：5753 / 5763

页数：11

共 50 条

[1] Observations of fast radio bursts at frequencies down to 400 megahertz [J].

Amiri, M. ;

Bandura, K. ;

Bhardwaj, M. ;

Boubel, P. ;

Boyce, M. M. ;

Boyle, P. J. ;

Brar, C. ;

Burhanpurkar, M. ;

Chawla, P. ;

Cliche, J. F. ;

Cubranic, D. ;

Deng, M. ;

Denman, N. ;

Dobbs, M. ;

Fandino, M. ;

Fonseca, E. ;

Gaensler, B. M. ;

Gilbert, A. J. ;

Giri, U. ;

Good, D. C. ;

Halpern, M. ;

Hanna, D. ;

Hill, A. S. ;

Hinshaw, G. ;

Hofer, C. ;

Josephy, A. ;

Kaspi, V. M. ;

Landecker, T. L. ;

Lang, D. A. ;

Masui, K. W. ;

Mckinven, R. ;

Mena-Parra, J. ;

Merryfield, M. ;

Milutinovic, N. ;

Moatti, C. ;

Naidu, A. ;

Newburgh, L. B. ;

Ng, C. ;

Patel, C. ;

Pen, U. ;

Pinsonneault-Marotte, T. ;

Pleunis, Z. ;

Rafiei-Ravandi, M. ;

Ransom, S. M. ;

Renard, A. ;

Scholz, P. ;

Shaw, J. R. ;

Siegel, S. R. ;

Smith, K. M. ;

Stairs, I. H. .

NATURE, 2019, 566 (7743) :230-+

[2] A second source of repeating fast radio bursts [J].

Amiri, M. ;

Bandura, K. ;

Bhardwaj, M. ;

Boubel, P. ;

Boyce, M. M. ;

Boyle, P. J. ;

Brar, C. ;

Burhanpurkar, M. ;

Cassanelli, T. ;

Chawla, P. ;

Cliche, J. F. ;

Cubranic, D. ;

Deng, M. ;

Denman, N. ;

Dobbs, M. ;

Fandino, M. ;

Fonseca, E. ;

Gaensler, B. M. ;

Gilbert, A. J. ;

Gill, A. ;

Giri, U. ;

Good, D. C. ;

Halpern, M. ;

Hanna, D. S. ;

Hill, A. S. ;

Hinshaw, G. ;

Hofer, C. ;

Josephy, A. ;

Kaspi, V. M. ;

Landecker, T. L. ;

Lang, D. A. ;

Lin, H-H. ;

Masui, K. W. ;

Mckinven, R. ;

Mena-Parra, J. ;

Merryfield, M. ;

Michilli, D. ;

Milutinovic, N. ;

Moatti, C. ;

Naidu, A. ;

Newburgh, L. B. ;

Ng, C. ;

Patel, C. ;

Pen, U. ;

Pinsonneault-Marotte, T. ;

Pleunis, Z. ;

Rafiei-Ravandi, M. ;

Rahman, M. ;

Ransom, S. M. ;

Renard, A. .

NATURE, 2019, 566 (7743) :235-+

[3]

AMIRI M, 2017, APJ, V844, DOI DOI 10.3847/1538-4357/AA713F

[4]

Amiri M., 2018, ASTROPHYS J, V863, P48, DOI [DOI 10.3847/1538-4357/AAD2D2, 10.3847/1538-4357/aad188]

[5]

[Anonymous], 2021, ASTROPHYS J, DOI DOI 10.3847/2041-8213/ABEC71

[6]

[Anonymous], 2018, APJ, DOI DOI 10.3847/1538-4357/AAB9A9

[7] The UTMOST: A Hybrid Digital Signal Processor Transforms the Molonglo Observatory Synthesis Telescope [J].

Bailes, M. ;

Jameson, A. ;

Flynn, C. ;

Bateman, T. ;

Barr, E. D. ;

Bhandari, S. ;

Bunton, J. D. ;

Caleb, M. ;

Campbell-Wilson, D. ;

Farah, W. ;

Gaensler, B. ;

Green, A. J. ;

Hunstead, R. W. ;

Jankowski, F. ;

Keane, E. F. ;

Krishnan, V. Venkatraman ;

Murphy, Tara ;

O'Neill, M. ;

Oslowski, S. ;

Parthasarathy, A. ;

Ravi, V. ;

Rosado, P. ;

Temby, D. .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 2017, 34

[8] The Detection of an Extremely Bright Fast Radio Burst in a Phased Array Feed Survey [J].

Bannister, K. W. ;

Shannon, R. M. ;

Macquart, J. -P. ;

Flynn, C. ;

Edwards, P. G. ;

O'Neill, M. ;

Oslowski, S. ;

Bailes, M. ;

Zackay, B. ;

Clarke, N. ;

D'Addario, L. R. ;

Dodson, R. ;

Hall, P. J. ;

Jameson, A. ;

Jones, D. ;

Navarro, R. ;

Trinh, J. T. ;

Allison, J. ;

Anderson, C. S. ;

Bell, M. ;

Chippendale, A. P. ;

Collier, J. D. ;

Heald, G. ;

Heywood, I. ;

Hotan, A. W. ;

Lee-Waddell, K. ;

Madrid, J. P. ;

Marvil, J. ;

McConnell, D. ;

Popping, A. ;

Voronkov, M. A. ;

Whiting, M. T. ;

Allen, G. R. ;

Bock, D. C. -J. ;

Brodrick, D. P. ;

Cooray, F. ;

DeBoer, D. R. ;

Diamond, P. J. ;

Ekers, R. ;

Gough, R. G. ;

Hampson, G. A. ;

Harvey-Smith, L. ;

Hay, S. G. ;

Hayman, D. B. ;

Jackson, C. A. ;

Johnston, S. ;

Koribalski, B. S. ;

McClure-Griffiths, N. M. ;

Mirtschin, P. ;

Ng, A. .

ASTROPHYSICAL JOURNAL LETTERS, 2017, 841 (01)

[9] Multifrequency observations of radio pulse broadening and constraints on interstellar electron density microstructure [J].

Bhat, NDR ;

Cordes, JM ;

Camilo, F ;

Nice, DJ ;

Lorimer, DR .

ASTROPHYSICAL JOURNAL, 2004, 605 (02) :759-783

[10] The first interferometric detections of fast radio bursts [J].

Caleb, M. ;

Flynn, C. ;

Bailes, M. ;

Barr, E. D. ;

Bateman, T. ;

Bhandari, S. ;

Campbell-Wilson, D. ;

Farah, W. ;

Green, A. J. ;

Hunstead, R. W. ;

Jameson, A. ;

Jankowski, F. ;

Keane, E. F. ;

Parthasarathy, A. ;

Ravi, V. ;

Rosado, P. A. ;

van Straten, W. ;

Krishnan, V. Venkatraman .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 468 (03) :3746-3756

← 1 2 3 4 5 →