MeerKAT Pulsar Timing Array parallaxes and proper motions

被引：3

作者：

Shamohammadi, M. ^{[1
,2
]}

Bailes, M. ^{[1
,2
]}

Flynn, C. ^{[1
,2
]}

Reardon, D. J. ^{[1
,2
]}

Shannon, R. M. ^{[1
,2
]}

Buchner, S. ^{[3
]}

Cameron, A. D. ^{[1
,2
]}

Camilo, F. ^{[3
]}

Coronigu, A. ^{[4
]}

Geyer, M. ^{[5
]}

Kramer, M. ^{[6
,7
]}

Miles, M. ^{[1
,2
]}

Spiewak, R. ^{[7
]}

机构：

[1] Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia

[2] Swinburne Univ Technol, ARC Ctr Excellence Gravitat Wave Discovery OzGrav, Mail H29, POB 218, Hawthorn, Vic 3122, Australia

[3] South African Radio Astron Observ, 2 Fir St, Black River Pk, ZA-7925 Cape Town, South Africa

[4] INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy

[5] Univ Cape Town, Dept Astron, ZA-7700 Cape Town, South Africa

[6] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany

[7] Univ Manchester, Jodrell Bank Ctr Astrophys, Dept Phys & Astron, Manchester M13 9PL, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 530卷 / 01期

基金：

澳大利亚研究理事会;

关键词：

parallaxes; proper motions; stars: neutron; pulsars: general; STAR-FORMING REGIONS; MILLISECOND PULSAR; TRIGONOMETRIC PARALLAXES; MAGNETIC-FIELDS; LOCAL STANDARD; BINARY; ASTROMETRY; EVOLUTION; VELOCITY; DISPERSION;

D O I：

10.1093/mnras/stae016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have determined positions, proper motions, and parallaxes of 77 millisecond pulsars (MSPs) from similar to 3 yr of MeerKAT radio telescope observations. Our timing and noise analyses enable us to measure 35 significant parallaxes (12 of them for the first time) and 69 significant proper motions. Eight pulsars near the ecliptic have an accurate proper motion in ecliptic longitude only. PSR J0955-6150 has a good upper limit on its very small proper motion (<0.4 mas yr(-1)). We used pulsars with accurate parallaxes to study the MSP velocities. This yields 39 MSP transverse velocities, and combined with MSPs in the literature (excluding those in Globular Clusters) we analyse 66 MSPs in total. We find that MSPs have, on average, much lower velocities than normal pulsars, with a mean transverse velocity of only 78(8) km s(-1) (MSPs) compared with 246(21) km s(-1) (normal pulsars). We found no statistical differences between the velocity distributions of isolated and binary MSPs. From Galactocentric cylindrical velocities of the MSPs, we derive 3D velocity dispersions of sigma(rho), sigma(phi), sigma(z) = 63(11), 48(8), 19(3) km s(-1). We measure a mean asymmetric drift with amplitude 38(11) km s(-1), consistent with expectation for MSPs, given their velocity dispersions and ages. The MSP velocity distribution is consistent with binary evolution models that predict very few MSPs with velocities >300 km s(-1) and a mild anticorrelation of transverse velocity with orbital period.

引用

页码：287 / 306

页数：20

共 111 条

[1]

Abuter R., 2018, A&A, V615, pL15, DOI [DOI 10.1051/0004-6361/201833718, 10.1051/0004-6361/201833718]

[2] The effect of pulse profile evolution on pulsar dispersion measure [J].

Ahuja, A. L. ;

Mitra, D. ;

Gupta, Y. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 377 (02) :677-686

[3] The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars [J].

Alam, Md F. ;

Arzoumanian, Zaven ;

Baker, Paul T. ;

Blumer, Harsha ;

Bohler, Keith E. ;

Brazier, Adam ;

Brook, Paul R. ;

Burke-Spolaor, Sarah ;

Caballero, Keeisi ;

Camuccio, Richard S. ;

Chamberlain, Rachel L. ;

Chatterjee, Shami ;

Cordes, James M. ;

Cornish, Neil J. ;

Crawford, Fronefield ;

Cromartie, H. Thankful ;

DeCesar, Megan E. ;

Demorest, Paul B. ;

Dolch, Timothy ;

Ellis, Justin A. ;

Ferdman, Robert D. ;

Ferrara, Elizabeth C. ;

Fiore, William ;

Fonseca, Emmanuel ;

Garcia, Yhamil ;

Garver-Daniels, Nathan ;

Gentile, Peter A. ;

Good, Deborah C. ;

Gusdorff, Jordan A. ;

Halmrast, Daniel ;

Hazboun, Jeffrey S. ;

Islo, Kristina ;

Jennings, Ross J. ;

Jessup, Cody ;

Jones, Megan L. ;

Kaiser, Andrew R. ;

Kaplan, David L. ;

Kelley, Luke Zoltan ;

Key, Joey Shapiro ;

Lam, Michael T. ;

Lazio, T. Joseph W. ;

Lorimer, Duncan R. ;

Luo, Jing ;

Lynch, Ryan S. ;

Madison, Dustin R. ;

Maraccini, Kaleb ;

McLaughlin, Maura A. ;

Mingarelli, Chiara M. F. ;

Ng, Cherry ;

Nguyen, Benjamin M. X. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2021, 252 (01)

[4] The NANOGrav 12.5 yr Data Set: Wideband Timing of 47 Millisecond Pulsars [J].

Alam, Md F. ;

Arzoumanian, Zaven ;

Baker, Paul T. ;

Blumer, Harsha ;

Bohler, Keith E. ;

Brazier, Adam ;

Brook, Paul R. ;

Burke-Spolaor, Sarah ;

Caballero, Keeisi ;

Camuccio, Richard S. ;

Chamberlain, Rachel L. ;

Chatterjee, Shami ;

Cordes, James M. ;

Cornish, Neil J. ;

Crawford, Fronefield ;

Cromartie, H. Thankful ;

DeCesar, Megan E. ;

Demorest, Paul B. ;

Dolch, Timothy ;

Ellis, Justin A. ;

Ferdman, Robert D. ;

Ferrara, Elizabeth C. ;

Fiore, William ;

Fonseca, Emmanuel ;

Garcia, Yhamil ;

Garver-Daniels, Nathan ;

Gentile, Peter A. ;

Good, Deborah C. ;

Gusdorff, Jordan A. ;

Halmrast, Daniel ;

Hazboun, Jeffrey S. ;

Islo, Kristina ;

Jennings, Ross J. ;

Jessup, Cody ;

Jones, Megan L. ;

Kaiser, Andrew R. ;

Kaplan, David L. ;

Kelley, Luke Zoltan ;

Key, Joey Shapiro ;

Lam, Michael T. ;

Lazio, T. Joseph W. ;

Lorimer, Duncan R. ;

Luo, Jing ;

Lynch, Ryan S. ;

Madison, Dustin R. ;

Maraccini, Kaleb ;

McLaughlin, Maura A. ;

Mingarelli, Chiara M. F. ;

Ng, Cherry ;

Nguyen, Benjamin M. X. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2021, 252 (01)

[5] Gaia pulsars and where to find them [J].

Antoniadis, John .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2021, 501 (01) :1116-1126

[6] The NANOGrav 11-year Data Set: High-precision Timing of 45 Millisecond Pulsars [J].

Arzoumanian, Zaven ;

Brazier, Adam ;

Burke-Spolaor, Sarah ;

Chamberlin, Sydney ;

Chatterjee, Shami ;

Christy, Brian ;

Cordes, James M. ;

Cornish, Neil J. ;

Crawford, Fronefield ;

Cromartie, H. Thankful ;

Crowter, Kathryn ;

DeCesar, Megan E. ;

Demorest, Paul B. ;

Dolch, Timothy ;

Ellis, Justin A. ;

Ferdman, Robert D. ;

Ferrara, Elizabeth C. ;

Fonseca, Emmanuel ;

Garver-Daniels, Nathan ;

Gentile, Peter A. ;

Halmrast, Daniel ;

Huerta, E. A. ;

Jenet, Fredrick A. ;

Jessup, Cody ;

Jones, Glenn ;

Jones, Megan L. ;

Kaplan, David L. ;

Lam, Michael T. ;

Lazio, T. Joseph W. ;

Levin, Lina ;

Lommen, Andrea ;

Lorimer, Duncan R. ;

Luo, Jing ;

Lynch, Ryan S. ;

Madison, Dustin ;

Matthews, Allison M. ;

McLaughlin, Maura A. ;

McWilliams, Sean T. ;

Mingarelli, Chiara ;

Ng, Cherry ;

Nice, David J. ;

Pennucci, Timothy T. ;

Ransom, Scott M. ;

Ray, Paul S. ;

Siemens, Xavier ;

Simon, Joseph ;

Spiewak, Renee ;

Stairs, Ingrid H. ;

Stinebring, Daniel R. ;

Stovall, Kevin .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2018, 235 (02)

[7] THE NANOGRAV NINE-YEAR DATA SET: OBSERVATIONS, ARRIVAL TIME MEASUREMENTS, AND ANALYSIS OF 37 MILLISECOND PULSARS [J].

Arzoumanian, Zaven ;

Brazier, Adam ;

Burke-Spolaor, Sarah ;

Chamberlin, Sydney ;

Chatterjee, Shami ;

Christy, Brian ;

Cordes, James M. ;

Cornish, Neil ;

Crowter, Kathryn ;

Demorest, Paul B. ;

Dolch, Timothy ;

Ellis, Justin A. ;

Ferdman, Robert D. ;

Fonseca, Emmanuel ;

Garver-Daniels, Nathan ;

Gonzalez, Marjorie E. ;

Jenet, Fredrick A. ;

Jones, Glenn ;

Jones, Megan L. ;

Kaspi, Victoria M. ;

Koop, Michael ;

Lam, Michael T. ;

Lazio, T. Joseph W. ;

Levin, Lina ;

Lommen, Andrea N. ;

Lorimer, Duncan R. ;

Luo, Jing ;

Lynch, Ryan S. ;

Madison, Dustin ;

McLaughlin, Maura A. ;

McWilliams, Sean T. ;

Nice, David J. ;

Palliyagurui, Nipuni ;

Pennucce, Timothy T. ;

Ransom, Scott M. ;

Siemens, Xavier ;

Stairs, Ingrid H. ;

Stinebring, Daniel R. ;

Stovall, Kevin ;

Swiggum, Joseph K. ;

Vallisneri, Michele ;

van Haasteren, Rutger ;

Wang, Yan ;

Zhu, Weiwei .

ASTROPHYSICAL JOURNAL, 2015, 813 (01)

[8] Kinematics and history of the solar neighbourhood revisited [J].

Aumer, Michael ;

Binney, James J. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 397 (03) :1286-1301

[9] The MeerKAT telescope as a pulsar facility: System verification and early science results from MeerTime [J].

Bailes, M. ;

Jameson, A. ;

Abbate, F. ;

Barr, E. D. ;

Bhat, N. D. R. ;

Bondonneau, L. ;

Burgay, M. ;

Buchner, S. J. ;

Camilo, F. ;

Champion, D. J. ;

Cognard, I ;

Demorest, P. B. ;

Freire, P. C. C. ;

Gautam, T. ;

Geyer, M. ;

Griessmeier, J-M ;

Guillemot, L. ;

Hu, H. ;

Jankowski, F. ;

Johnston, S. ;

Karastergiou, A. ;

Karuppusamy, R. ;

Kaur, D. ;

Keith, M. J. ;

Kramer, M. ;

van Leeuwen, J. ;

Lower, M. E. ;

Maan, Y. ;

McLaughlin, M. A. ;

Meyers, B. W. ;

Oslowski, S. ;

Oswald, L. S. ;

Parthasarathy, A. ;

Pennucci, T. ;

Posselt, B. ;

Possenti, A. ;

Ransom, S. M. ;

Reardon, D. J. ;

Ridolfi, A. ;

Schollar, C. T. G. ;

Serylak, M. ;

Shaifullah, G. ;

Shamohammadi, M. ;

Shannon, R. M. ;

Sobey, C. ;

Song, X. ;

Spiewak, R. ;

Stairs, I. H. ;

Stappers, B. W. ;

van Straten, W. .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 2020, 37

[10]

BAILES M, 1990, MON NOT R ASTRON SOC, V247, P322

← 1 2 3 4 5 6 7 8 9 10 →