www.sciencemag.org/cgi/content/full/1175558/DC1
Supporting Online Material for
Detection of 16 Gamma-Ray Pulsars Through Blind Frequency
Searches Using the Fermi LAT
A. A. Abdo, M. Ackermann, M. Ajello, B. Anderson, W. B. Atwood, M. Axelsson, L. Baldini, J. Ballet, G.
Barbiellini, M. G. Baring, D. Bastieri, B. M. Baughman, K. Bechtol, R. Bellazzini, B. Berenji, G. F.
Bignami, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland, J. Bregeon, A. Brez, M. Brigida,
P. Bruel, T. H. Burnett, G. A. Caliandro, R. A. Cameron, P. A. Caraveo, J. M. Casandjian, C. Cecchi, Ö.
Çelik, A. Chekhtman, C. C. Cheung, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, S. Cutini,
C. D. Dermer, A. de Angelis, A. de Luca, F. de Palma, S. W. Digel, M. Dormody,* E. do Couto e Silva, P.
S. Drell, R. Dubois, D. Dumora, C. Farnier, C. Favuzzi, S. J. Fegan, Y. Fukazawa, S. Funk, P. Fusco, F.
Gargano, D. Gasparrini, N. Gehrels, S. Germani, B. Giebels, N. Giglietto, P. Giommi, F. Giordano, T.
Glanzman, G. Godfrey, I. A. Grenier, M.-H. Grondin, J. E. Grove, L. Guillemot, S. Guiriec, C. Gwon, Y.
Hanabata, A. K. Harding, M. Hayashida, E. Hays, R. E. Hughes, G. Jóhannesson, R. P. Johnson, T. J.
Johnson, W. N. Johnson, T. Kamae, H. Katagiri, J. Kataoka, N. Kawai, M. Kerr, J. Knödlseder, M. L.
Kocian, M. Kuss, J. Lande, L. Latronico, M. Lemoine-Goumard, F. Longo, F. Loparco, B. Lott, M. N.
Lovellette, P. Lubrano, G. M. Madejski, A. Makeev, M. Marelli, M. N. Mazziotta, W. McConville, J. E.
McEnery, C. Meurer, P. F. Michelson, W. Mitthumsiri, T. Mizuno, C. Monte, M. E. Monzani, A. Morselli,
I. V. Moskalenko, S. Murgia, P. L. Nolan, J. P. Norris, E. Nuss, T. Ohsugi, N. Omodei, E. Orlando, J. F.
Ormes, D. Paneque, D. Parent, V. Pelassa, M. Pepe, M. Pesce-Rollins, M. Pierbattista, F. Piron, T. A.
Porter, J. R. Primack, S. Rainò, R. Rando, P. S. Ray,* M. Razzano, N. Rea, A. Reimer, O. Reimer, T.
Reposeur, S. Ritz, L. S. Rochester, A. Y. Rodriguez, R. W. Romani, F. Ryde, H. F.-W. Sadrozinski, D.
Sanchez, A. Sander, P. M. Saz Parkinson,* J. D. Scargle, C. Sgrò, E. J. Siskind, D. A. Smith, P. D. Smith,
G. Spandre, P. Spinelli, J.-L. Starck, M. S. Strickman, D. J. Suson, H. Tajima, H. Takahashi, T. Takahashi,
T. Tanaka, J. G. Thayer, D. J. Thompson, L. Tibaldo, O. Tibolla, D. F. Torres, G. Tosti, A. Tramacere, Y.
Uchiyama, T. L. Usher, A. Van Etten, V. Vasileiou, N. Vilchez, V. Vitale, A. P. Waite, P. Wang, K.
Watters, B. L. Winer, M. T. Wolff, K. S. Wood, T. Ylinen, M. Ziegler*
*To whom correspondence should be addressed. E-mail: dormody@scipp.ucsc.edu
(M.D.); paul.ray@nrl.navy.mil (P.S.R.); pablo@scipp.ucsc.edu (P.M.S.P.);
ziegler@scipp.ucsc.edu (M.Z.)
Published 2 July 2009 on Science Express
DOI: 10.1126/science.1175558
This PDF file includes:
Fig. S1
References and Notes
Detection of 16 Gamma-Ray Pulsars Through Blind Frequency
Searches Using the Fermi LAT (Supporting Online Material)
The Fermi LAT Collaboration,1∗
1
Fermi LAT Category I paper
∗
To whom correspondence should be addressed;
dormody@scipp.ucsc.edu, paul.ray@nrl.navy.mil, pablo@scipp.ucsc.edu, ziegler@scipp.ucsc.edu
PRESTO outputs. The following plots show the outputs obtained from running the prepfold command on
PRESTO (1) for each of the 16 pulsars. The figures illustrate the phase plots, along with the evolution of the
reduced χ2 , showing the strength of the signal during the course of our observation and the stability of the timing
solution.
References and Notes
1. S. M. Ransom, Harvard University, PhD Thesis, (2001).
2. The F ermi LAT Collaboration is supported by the National Aeronautics and Space Administration and
the Department of Energy in the United States, the Commissariat à l’Energie Atomique and the Centre
National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules
in France, the Agenzia Spaziale Italiana, the Istituto Nazionale di Fisica Nucleare, and the Istituto Nazionale
di Astrofisica in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High
Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in
Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National
Space Board in Sweden.
Much of this work was carried out on the UCSC Astronomy Department Pleiades supercomputer.
This work made extensive use of the ATNF pulsar database.
We thank N. Gehrels, for granting Swift/XRT time to explore the LAT error circles and the Swift MOC staff
for performing the observations.
We also thank F. Camilo and S. Ransom for contributions. We thank M. Roberts for useful discussions.
1
(a) LAT PSR J0007+7303
(b) LAT PSR J0357+32
(c) LAT PSR J0633+0632
(d) LAT PSR J1418-6058
2
(e) LAT PSR J1459-60
(f) LAT PSR J1732-31
(g) LAT PSR J1741-2054
(h) LAT PSR J1809-2332
3
(i) LAT PSR J1813-1246
(j) LAT PSR J1826-1256
(k) LAT PSR J1836+5925
(l) LAT PSR J1907+06
4
(m) LAT PSR J1958+2846
(n) LAT PSR J2021+4026
(o) LAT PSR J2032+4127
(p) LAT PSR J2238+59
5