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Title: TIMING OF FIVE MILLISECOND PULSARS DISCOVERED IN THE PALFA SURVEY

Abstract

We present the discovery of five millisecond pulsars (MSPs) from the PALFA Galactic plane survey using Arecibo. Four of these (PSRs J0557+1551, J1850+0244, J1902+0300, and J1943+2210) are binary pulsars whose companions are likely white dwarfs, and one (PSR J1905+0453) is isolated. Phase-coherent timing solutions, ranging from ∼1 to ∼3 yr in length, and based on observations from the Jodrell Bank and Arecibo telescopes, provide precise determinations of spin, orbital, and astrometric parameters. All five pulsars have large dispersion measures (>100 pc cm{sup –3}, within the top 20% of all known Galactic field MSPs) and are faint (1.4 GHz flux density ≲0.1 mJy, within the faintest 5% of all known Galactic field MSPs), illustrating PALFA's ability to find increasingly faint, distant MSPs in the Galactic plane. In particular, PSR J1850+0244 has a dispersion measure of 540 pc cm{sup –3}, the highest of all known MSPs. Such distant, faint MSPs are important input for accurately modeling the total Galactic MSP population.

Authors:
; ; ;  [1]; ;  [2]; ;  [3]; ; ;  [4];  [5];  [6];  [7]; ;  [8];  [9];  [10];  [11];  [12] more »; « less
  1. Department of Physics, McGill University, Montreal, QC H3A 2T8 (Canada)
  2. Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)
  3. Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States)
  4. Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States)
  5. Department of Physics and Astronomy, Franklin and Marshall College, Lancaster, PA 17604-3003 (United States)
  6. Max-Planck-Institut für Radioastronomie, D-53121 Bonn (Germany)
  7. ASTRON, Netherlands Institute for Radio Astronomy, Postbus 2, 7990-AA Dwingeloo (Netherlands)
  8. Department of Physics and Astronomy, West Virginia University, Morgantown, WV 26506 (United States)
  9. Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada)
  10. Physics Department, University of Wisconsin-Milwaukee, Milwaukee, WI 53211 (United States)
  11. Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375 (United States)
  12. Center for Gravitational Wave Astronomy, University of Texas at Brownsville, TX 78520 (United States)
Publication Date:
OSTI Identifier:
22522103
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 800; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BINARY STARS; FLUX DENSITY; GHZ RANGE; MILKY WAY; PULSARS; SPIN; TELESCOPES; WHITE DWARF STARS

Citation Formats

Scholz, P., Kaspi, V. M., Ferdman, R. D., Karako-Argaman, C., Lyne, A. G., Stappers, B. W., Bogdanov, S., Camilo, F., Cordes, J. M., Brazier, A., Chatterjee, S., Crawford, F., Freire, P. C. C., Hessels, J. W. T., Lorimer, D. R., Cardoso, R. F., Stairs, I. H., Allen, B., Deneva, J. S., Jenet, F. A., E-mail: pscholz@physics.mcgill.ca, and and others. TIMING OF FIVE MILLISECOND PULSARS DISCOVERED IN THE PALFA SURVEY. United States: N. p., 2015. Web. doi:10.1088/0004-637X/800/2/123.
Scholz, P., Kaspi, V. M., Ferdman, R. D., Karako-Argaman, C., Lyne, A. G., Stappers, B. W., Bogdanov, S., Camilo, F., Cordes, J. M., Brazier, A., Chatterjee, S., Crawford, F., Freire, P. C. C., Hessels, J. W. T., Lorimer, D. R., Cardoso, R. F., Stairs, I. H., Allen, B., Deneva, J. S., Jenet, F. A., E-mail: pscholz@physics.mcgill.ca, & and others. TIMING OF FIVE MILLISECOND PULSARS DISCOVERED IN THE PALFA SURVEY. United States. doi:10.1088/0004-637X/800/2/123.
Scholz, P., Kaspi, V. M., Ferdman, R. D., Karako-Argaman, C., Lyne, A. G., Stappers, B. W., Bogdanov, S., Camilo, F., Cordes, J. M., Brazier, A., Chatterjee, S., Crawford, F., Freire, P. C. C., Hessels, J. W. T., Lorimer, D. R., Cardoso, R. F., Stairs, I. H., Allen, B., Deneva, J. S., Jenet, F. A., E-mail: pscholz@physics.mcgill.ca, and and others. Fri . "TIMING OF FIVE MILLISECOND PULSARS DISCOVERED IN THE PALFA SURVEY". United States. doi:10.1088/0004-637X/800/2/123.
@article{osti_22522103,
title = {TIMING OF FIVE MILLISECOND PULSARS DISCOVERED IN THE PALFA SURVEY},
author = {Scholz, P. and Kaspi, V. M. and Ferdman, R. D. and Karako-Argaman, C. and Lyne, A. G. and Stappers, B. W. and Bogdanov, S. and Camilo, F. and Cordes, J. M. and Brazier, A. and Chatterjee, S. and Crawford, F. and Freire, P. C. C. and Hessels, J. W. T. and Lorimer, D. R. and Cardoso, R. F. and Stairs, I. H. and Allen, B. and Deneva, J. S. and Jenet, F. A., E-mail: pscholz@physics.mcgill.ca and and others},
abstractNote = {We present the discovery of five millisecond pulsars (MSPs) from the PALFA Galactic plane survey using Arecibo. Four of these (PSRs J0557+1551, J1850+0244, J1902+0300, and J1943+2210) are binary pulsars whose companions are likely white dwarfs, and one (PSR J1905+0453) is isolated. Phase-coherent timing solutions, ranging from ∼1 to ∼3 yr in length, and based on observations from the Jodrell Bank and Arecibo telescopes, provide precise determinations of spin, orbital, and astrometric parameters. All five pulsars have large dispersion measures (>100 pc cm{sup –3}, within the top 20% of all known Galactic field MSPs) and are faint (1.4 GHz flux density ≲0.1 mJy, within the faintest 5% of all known Galactic field MSPs), illustrating PALFA's ability to find increasingly faint, distant MSPs in the Galactic plane. In particular, PSR J1850+0244 has a dispersion measure of 540 pc cm{sup –3}, the highest of all known MSPs. Such distant, faint MSPs are important input for accurately modeling the total Galactic MSP population.},
doi = {10.1088/0004-637X/800/2/123},
journal = {Astrophysical Journal},
number = 2,
volume = 800,
place = {United States},
year = {Fri Feb 20 00:00:00 EST 2015},
month = {Fri Feb 20 00:00:00 EST 2015}
}