Studying the Solar system with the International Pulsar Timing Array

Pulsar-timing analyses are sensitive to errors in the Solar-system ephemerides (SSEs) that timing models utilize to estimate the location of the Solar-system barycentre, the quasi-inertial reference frame to which all recorded pulse times-of-arrival are referred. Any error in the SSE will affect all...

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Main Authors:	Caballero, R., Guo, Y., Lee, K., Lazarus, P., Champion, D., Desvignes, G., Kramer, M., Plant, K., Arzoumanian, Z., Bailes, M., Bassa, C., Bhat, Ramesh, Brazier, A., Burgay, M., Burke-Spolaor, S., Chamberlin, S., Chatterjee, S., Cognard, I., Cordes, J., Dai, S., Demorest, P., Dolch, T., Ferdman, R., Fonseca, E., Gair, J., Garver-Daniels, N., Gentile, P., Gonzalez, M., Graikou, E., Guillemot, L., Hobbs, G., Janssen, G., Karuppusamy, R., Keith, M., Kerr, M., Lam, M., Lasky, P., Lazio, T., Levin, L., Liu, K., Lommen, A., Lorimer, D., Lynch, R., Madison, D., Manchester, R., McKee, J., McLaughlin, M., McWilliams, S., Mingarelli, C., Nice, D., Osiowski, S., Palliyaguru, N., Pennucci, T., Perera, B., Perrodin, D., Possenti, A., Ransom, S., Reardon, D., Sanidas, S., Sesana, A., Shaifullah, G., Shannon, Ryan, Siemens, X., Simon, J., Spiewak, R., Stairs, I., Stappers, B., Stinebring, D., Stovall, K., Swiggum, J., Taylor, S., Theureau, G., Tiburzi, C.
Format:	Journal Article
Published:	Oxford University Press 2018
Online Access:	http://hdl.handle.net/20.500.11937/74724

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author	Caballero, R. Guo, Y. Lee, K. Lazarus, P. Champion, D. Desvignes, G. Kramer, M. Plant, K. Arzoumanian, Z. Bailes, M. Bassa, C. Bhat, Ramesh Brazier, A. Burgay, M. Burke-Spolaor, S. Chamberlin, S. Chatterjee, S. Cognard, I. Cordes, J. Dai, S. Demorest, P. Dolch, T. Ferdman, R. Fonseca, E. Gair, J. Garver-Daniels, N. Gentile, P. Gonzalez, M. Graikou, E. Guillemot, L. Hobbs, G. Janssen, G. Karuppusamy, R. Keith, M. Kerr, M. Lam, M. Lasky, P. Lazio, T. Levin, L. Liu, K. Lommen, A. Lorimer, D. Lynch, R. Madison, D. Manchester, R. McKee, J. McLaughlin, M. McWilliams, S. Mingarelli, C. Nice, D. Osiowski, S. Palliyaguru, N. Pennucci, T. Perera, B. Perrodin, D. Possenti, A. Ransom, S. Reardon, D. Sanidas, S. Sesana, A. Shaifullah, G. Shannon, Ryan Siemens, X. Simon, J. Spiewak, R. Stairs, I. Stappers, B. Stinebring, D. Stovall, K. Swiggum, J. Taylor, S. Theureau, G. Tiburzi, C.
author_facet	Caballero, R. Guo, Y. Lee, K. Lazarus, P. Champion, D. Desvignes, G. Kramer, M. Plant, K. Arzoumanian, Z. Bailes, M. Bassa, C. Bhat, Ramesh Brazier, A. Burgay, M. Burke-Spolaor, S. Chamberlin, S. Chatterjee, S. Cognard, I. Cordes, J. Dai, S. Demorest, P. Dolch, T. Ferdman, R. Fonseca, E. Gair, J. Garver-Daniels, N. Gentile, P. Gonzalez, M. Graikou, E. Guillemot, L. Hobbs, G. Janssen, G. Karuppusamy, R. Keith, M. Kerr, M. Lam, M. Lasky, P. Lazio, T. Levin, L. Liu, K. Lommen, A. Lorimer, D. Lynch, R. Madison, D. Manchester, R. McKee, J. McLaughlin, M. McWilliams, S. Mingarelli, C. Nice, D. Osiowski, S. Palliyaguru, N. Pennucci, T. Perera, B. Perrodin, D. Possenti, A. Ransom, S. Reardon, D. Sanidas, S. Sesana, A. Shaifullah, G. Shannon, Ryan Siemens, X. Simon, J. Spiewak, R. Stairs, I. Stappers, B. Stinebring, D. Stovall, K. Swiggum, J. Taylor, S. Theureau, G. Tiburzi, C.
author_sort	Caballero, R.
building	Curtin Institutional Repository
collection	Online Access
description	Pulsar-timing analyses are sensitive to errors in the Solar-system ephemerides (SSEs) that timing models utilize to estimate the location of the Solar-system barycentre, the quasi-inertial reference frame to which all recorded pulse times-of-arrival are referred. Any error in the SSE will affect all pulsars, therefore pulsar timing arrays (PTAs) are a suitable tool to search for such errors and impose independent constraints on relevant physical parameters. We employ the first data release of the International Pulsar Timing Array to constrain the masses of the planet-moons systems and to search for possible unmodelled objects (UMOs) in the Solar system. We employ 10 SSEs from two independent research groups, derive and compare mass constraints of planetary systems, and derive the first PTA mass constraints on asteroidbelt objects. Constraints on planetary-system masses have been improved by factors of up to 20 from the previous relevant study using the same assumptions, with the mass of the Jovian system measured at 9.5479189(3) × 10-4M?. The mass of the dwarf planet Ceres is measured at 4.7(4) × 10-10M?. We also present the first sensitivity curves using real data that place generic limits on the masses of UMOs, which can also be used as upper limits on the mass of putative exotic objects. For example, upper limits on dark-matter clumps are comparable to published limits using independent methods.While the constraints on planetary masses derived with all employed SSEs are consistent, we note and discuss differences in the associated timing residuals and UMO sensitivity curves.
first_indexed	2025-11-14T11:02:08Z
format	Journal Article
id	curtin-20.500.11937-74724
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T11:02:08Z
publishDate	2018
publisher	Oxford University Press
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-747242019-03-13T03:38:37Z Studying the Solar system with the International Pulsar Timing Array Caballero, R. Guo, Y. Lee, K. Lazarus, P. Champion, D. Desvignes, G. Kramer, M. Plant, K. Arzoumanian, Z. Bailes, M. Bassa, C. Bhat, Ramesh Brazier, A. Burgay, M. Burke-Spolaor, S. Chamberlin, S. Chatterjee, S. Cognard, I. Cordes, J. Dai, S. Demorest, P. Dolch, T. Ferdman, R. Fonseca, E. Gair, J. Garver-Daniels, N. Gentile, P. Gonzalez, M. Graikou, E. Guillemot, L. Hobbs, G. Janssen, G. Karuppusamy, R. Keith, M. Kerr, M. Lam, M. Lasky, P. Lazio, T. Levin, L. Liu, K. Lommen, A. Lorimer, D. Lynch, R. Madison, D. Manchester, R. McKee, J. McLaughlin, M. McWilliams, S. Mingarelli, C. Nice, D. Osiowski, S. Palliyaguru, N. Pennucci, T. Perera, B. Perrodin, D. Possenti, A. Ransom, S. Reardon, D. Sanidas, S. Sesana, A. Shaifullah, G. Shannon, Ryan Siemens, X. Simon, J. Spiewak, R. Stairs, I. Stappers, B. Stinebring, D. Stovall, K. Swiggum, J. Taylor, S. Theureau, G. Tiburzi, C. Pulsar-timing analyses are sensitive to errors in the Solar-system ephemerides (SSEs) that timing models utilize to estimate the location of the Solar-system barycentre, the quasi-inertial reference frame to which all recorded pulse times-of-arrival are referred. Any error in the SSE will affect all pulsars, therefore pulsar timing arrays (PTAs) are a suitable tool to search for such errors and impose independent constraints on relevant physical parameters. We employ the first data release of the International Pulsar Timing Array to constrain the masses of the planet-moons systems and to search for possible unmodelled objects (UMOs) in the Solar system. We employ 10 SSEs from two independent research groups, derive and compare mass constraints of planetary systems, and derive the first PTA mass constraints on asteroidbelt objects. Constraints on planetary-system masses have been improved by factors of up to 20 from the previous relevant study using the same assumptions, with the mass of the Jovian system measured at 9.5479189(3) × 10-4M?. The mass of the dwarf planet Ceres is measured at 4.7(4) × 10-10M?. We also present the first sensitivity curves using real data that place generic limits on the masses of UMOs, which can also be used as upper limits on the mass of putative exotic objects. For example, upper limits on dark-matter clumps are comparable to published limits using independent methods.While the constraints on planetary masses derived with all employed SSEs are consistent, we note and discuss differences in the associated timing residuals and UMO sensitivity curves. 2018 Journal Article http://hdl.handle.net/20.500.11937/74724 10.1093/MNRAS/STY2632 Oxford University Press fulltext
spellingShingle	Caballero, R. Guo, Y. Lee, K. Lazarus, P. Champion, D. Desvignes, G. Kramer, M. Plant, K. Arzoumanian, Z. Bailes, M. Bassa, C. Bhat, Ramesh Brazier, A. Burgay, M. Burke-Spolaor, S. Chamberlin, S. Chatterjee, S. Cognard, I. Cordes, J. Dai, S. Demorest, P. Dolch, T. Ferdman, R. Fonseca, E. Gair, J. Garver-Daniels, N. Gentile, P. Gonzalez, M. Graikou, E. Guillemot, L. Hobbs, G. Janssen, G. Karuppusamy, R. Keith, M. Kerr, M. Lam, M. Lasky, P. Lazio, T. Levin, L. Liu, K. Lommen, A. Lorimer, D. Lynch, R. Madison, D. Manchester, R. McKee, J. McLaughlin, M. McWilliams, S. Mingarelli, C. Nice, D. Osiowski, S. Palliyaguru, N. Pennucci, T. Perera, B. Perrodin, D. Possenti, A. Ransom, S. Reardon, D. Sanidas, S. Sesana, A. Shaifullah, G. Shannon, Ryan Siemens, X. Simon, J. Spiewak, R. Stairs, I. Stappers, B. Stinebring, D. Stovall, K. Swiggum, J. Taylor, S. Theureau, G. Tiburzi, C. Studying the Solar system with the International Pulsar Timing Array
title	Studying the Solar system with the International Pulsar Timing Array
title_full	Studying the Solar system with the International Pulsar Timing Array
title_fullStr	Studying the Solar system with the International Pulsar Timing Array
title_full_unstemmed	Studying the Solar system with the International Pulsar Timing Array
title_short	Studying the Solar system with the International Pulsar Timing Array
title_sort	studying the solar system with the international pulsar timing array
url	http://hdl.handle.net/20.500.11937/74724

Studying the Solar system with the International Pulsar Timing Array

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