THE GREEN BANK TELESCOPE 350 MHz DRIFT-SCAN SURVEY. I. SURVEY OBSERVATIONS AND THE DISCOVERY OF 13 PULSARS

Journal Article · Fri Feb 15 00:00:00 EST 2013 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/763/2/80· OSTI ID:22167152

Boyles, J.; Lorimer, D. R.; McLaughlin, M. A.; Cardoso, R. F. ^[1]; Lynch, R. S.; Kaspi, V. M.; Archibald, A.; Karako-Argaman, C. ^[2]; Ransom, S. M. ^[3]; Stairs, I. H.; Berndsen, A.; Cherry, A.; McPhee, C. A. ^[4]; Hessels, J. W. T.; Kondratiev, V. I.; Van Leeuwen, J. ^[5]; Epstein, C. R. ^[6]; Pennucci, T. ^[7]; Roberts, M. S. E. ^[8]

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1. Department of Physics, West Virginia University, Morgantown, WV 26506 (United States)
2. Department of Physics, McGill University, 3600 University St., Montreal, Quebec, H3A 2T8 (Canada)
3. National Radio Astronomy Observatory (NRAO), 520 Edgemont Road, Charlottesville, VA 22901 (United States)
4. Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, British Columbia V6T 1Z1 (Canada)
5. ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2, 7990 AA, Dwingeloo (Netherlands)
6. Department of Astronomy, Ohio State University, 140 W. 18th Avenue, Columbus, OH 43210 (United States)
7. Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325 (United States)
8. Eureka Scientific, 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017 (United States)

Over the summer of 2007, we obtained 1191 hr of 'drift-scan' pulsar search observations with the Green Bank Telescope at a radio frequency of 350 MHz. Here we describe the survey setup, search procedure, and the discovery and follow-up timing of 13 pulsars. Among the new discoveries, one (PSR J1623-0841) was discovered only through its single pulses, two (PSRs J1327-0755 and J1737-0814) are millisecond pulsars, and another (PSR J2222-0137) is a mildly recycled pulsar. PSR J1327-0755 is a 2.7 ms pulsar at a dispersion measure (DM) of 27.9 pc cm{sup -3} in an 8.7 day orbit with a minimum companion mass of 0.22 M {sub Sun }. PSR J1737-0814 is a 4.2 ms pulsar at a DM of 55.3 pc cm{sup -3} in a 79.3 day orbit with a minimum companion mass of 0.06 M {sub Sun }. PSR J2222-0137 is a 32.8 ms pulsar at a very low DM of 3.27 pc cm{sup -3} in a 2.4 day orbit with a minimum companion mass of 1.11 M {sub Sun }. It is most likely a white-dwarf-neutron-star system or an unusual low-eccentricity double neutron star system. Ten other pulsars discovered in this survey are reported in the companion paper Lynch et al.

• OSTI ID: 22167152
• Journal Information: Astrophysical Journal, Vol. 763, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
MASS
MHZ RANGE 100-1000
NEUTRON STARS
NEUTRONS
ORBITS
PULSARS
RADIOWAVE RADIATION
TELESCOPES
WHITE DWARF STARS