Searches for gravitational waves from known pulsars with S5 LIGO data (2009)
Collaboration, The LIGO Scientific, Abbott, R., Acernese, F., Adhikari, R., Ajith, P., ...
We present a search for gravitational waves from 116 known millisecond and young pulsars using data from the fifth science run of the LIGO detectors. For this search ephemerides overlapping the run...
Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars (2009)
Camilo, F., Ray, P. S., Ransom, S. M., Burgay, M., Johnson, T. J., Kerr, M., ...
Sixteen pulsars have been discovered so far in blind searches of photons collected with the Large Area Telescope on the Fermi Gamma-ray Space Telescope. We here report the discovery of radio...
Out of the frying pan: a young pulsar with a long radio trail emerging from SNR G315.9-0.0 (2009)
Camilo, F., Gaensler, B. M., Ransom, S. M., Chatterjee, S., Reynolds, J., ...
The faint radio supernova remnant SNR G315.9-0.0 is notable for a long and thin trail that extends outward perpendicular from the edge of its approximately circular shell. In a search with the Parkes...
Discovery of the energetic pulsar J1747-2809 in the supernova remnant G0.9+0.1 (2009)
Camilo, F., Ransom, S. M., Gaensler, B. M., Lorimer, D. R.
The supernova remnant G0.9+0.1 has long been inferred to contain a central energetic pulsar. In observations with the NRAO Green Bank Telescope at 2 GHz, we have detected radio pulsations from PSR...
Fermi large area telescope observations of the Vela pulsar (2009)
Abdo, A. A., Ackermann, M., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., ...
Pulsed gamma-rays from PSR J2021+3651 with the Fermi large area telescope (2009)
Abdo, A. A., Ackermann, M., Ajello, M., Atwood, W. B., Baldini, L., Ballet, J., ...
A population of gamma-ray millisecond pulsars seen with the Fermi large area telescope (2009)
Abdo, A. A., Ackermann, M., Ajello, M., Atwood, W. B., Axelsson, M., Baldini, L., ...
Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars (2009)
Camilo, F., Ray, P. S., Ransom, S. M., Burgay, M., Johnson, T. J., Kerr, M., ...
Sixteen pulsars have been discovered so far in blind searches of photons collected with the Large Area Telescope on the Fermi Gamma-ray Space Telescope. We here report the discovery of radio...
Arecibo pulsar survey using ALFA: probing radio pulsar intermittency and transients (2009)
Deneva, J. S., Cordes, J. M., McLaughlin, M. A., Nice, D. J., Lorimer, D. R., Crawford, F., ...
We present radio transient search algorithms, results, and statistics from the ongoing Arecibo Pulsar ALFA (PALFA) survey of the Galactic plane. We have discovered seven objects through a search for...
Arecibo pulsar survey using ALFA: probing radio pulsar intermittency and transients (2009)
Deneva, J. S., Cordes, J. M., McLaughlin, M. A., Nice, D. J., Lorimer, D. R., Crawford, F., ...
We present radio transient search algorithms, results, and statistics from the ongoing Arecibo Pulsar ALFA (PALFA) survey of the Galactic plane. We have discovered seven objects through a search for...
Arecibo Pulsar Survey Using ALFA. III. Probing Radio Pulsar Intermittency and Transients (2008)
Deneva, J. S., Cordes, J. M., McLaughlin, M. A., Nice, D. J., Lorimer, D. R., Crawford, F., ...
We present radio transient search algorithms, results, and statistics from the ongoing Arecibo Pulsar ALFA (PALFA) Survey of the Galactic plane. We have discovered seven objects by detecting isolated...
Pulsar Timing for the Fermi Gamma-ray Space Telescope (2008)
Smith, D. A., Guillemot, L., Camilo, F., Cognard, I., Dumora, D., Espinoza, C., ...
We describe a comprehensive pulsar monitoring campaign for the Large Area Telescope (LAT) on the {\em Fermi Gamma-ray Space Telescope} (formerly GLAST). The detection and study of pulsars in gamma...
Discovery of High-Energy Gamma-Ray Pulsations from PSR J2021+3651 with AGILE (2008)
Halpern, J. P., Camilo, F., Giuliani, A., Gotthelf, E. V., McLaughlin, M. A., Mukherjee, R., ...
Discovered after the end of the Compton Gamma-Ray Observatory mission, the radio pulsar PSR J2021+3651 was long considered a likely counterpart of the high-energy gamma-ray source 2CG 075+00 = 3EG...
Chandra X-Ray Observatory Observations of the Globular Cluster M71 (2008)
Elsner, R. F., Heinke, C. O., Cohn, H. N., Lugger, P. M., Maxwell, J. E., Stairs, I. H., ...
We observed the nearby, low-density globular cluster M71 (NGC 6838) with the Chandra X-ray Observatory to study its faint X-ray populations. Five X-ray sources were found inside the cluster core...
Hessels, J. W. T., Nice, D. J., Gaensler, B. M., Kaspi, V. M., Lorimer, D. R., Champion, D. J., ...
We present the discovery of the Vela-like radio pulsar J1856+0245 in the Arecibo PALFA survey. PSR J1856+0245 has a spin period of 81ms, a characteristic age of 21kyr, and a spin-down luminosity Edot...
An Eccentric Binary Millisecond Pulsar in the Galactic Plane (2008)
Champion, D. J., Ransom, S. M., Lazarus, P., Camilo, F., Bassa, C., Kaspi, V. M., ...
Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+0327, a radio pulsar...
The magnetar 1E 1547.0-5408: radio spectrum, polarimetry, and timing (2008)
Camilo, F., Reynolds, J., Johnston, S., Halpern, J. P., Ransom, S. M.
We have investigated the radio emission from the anomalous X-ray pulsar 1E 1547.0-5408 (PSR J1550-5418) using the Parkes telescope and the Australia Telescope Compact Array. The flux density of the...
Relativistic spin precession in the double pulsar (2008)
Breton, R. P., Kaspi, V. M., Kramer, M., McLaughlin, M. A., Lyutikov, M., Ransom, S. M., ...
The double pulsar PSR J0737-3039A/B consists of two neutron stars in a highly relativistic orbit that displays a roughly 30- second eclipse when pulsar A passes behind pulsar B. Describing this...
Chandra X-ray Observatory observations of the globular cluster M71 (2008)
Elsner, R.F., Heinke, C.O., Cohn, H.N., Lugger, P.M., Maxwell, J.E., Stairs, I.H., ...
We observe the nearby, low-density globular cluster M71 (NGC 6838) with the Chandra X-Ray Observatory to study its faint X-ray populations. Five X-ray sources are found inside the cluster core...
An eccentric binary millisecond pulsar in the Galactic plane (2008)
Champion, D.J., Ransom, S.M., Lazarus, P., Camilo, F., Bassa, C., Kaspi, V.M., ...
Binary pulsar systems are superb probes of stellar and binary evolution and the physics of extreme environments. In a survey with the Arecibo telescope, we have found PSR J1903+ 0327, a radio pulsar...
The discovery of an eccentric millisecond pulsar in the Galactic plane (2008)
Champion, D.J., Ransom, S.M., Lazarus, P., Camilo, F., Kaspi, V.M., Nice, D.J., ...
The evolution of binary systems is governed by their orbital properties and the stellar density of the local environment. Studies of neutron stars in binary star systems offer unique insights into...
Hessels, J.W.T., Nice, D.J., Gaensler, B.M., Kaspi, V.M., Lorimer, D.R., Champion, D.J., ...
We present the discovery of the Vela-like radio pulsar J1856+0245 in the Arecibo PALFA survey. PSR J1856+0245 has a spin period of 81 ms, a characteristic age of 21 kyr, and a spin-down luminosity...
Eight new millisecond pulsars in NGC 6440 and NGC 6441 (2008)
Freire, P.C.C., Ransom, S.M., Bégin, S., Stairs, I.H., Hessels, J.W.T., Frey, L.H., ...
Motivated by the recent discovery of 30 new millisecond pulsars in Terzan 5, made using the Green Bank Telescope's S-band receiver and the Pulsar Spigot spectrometer, we have set out to use the same...
The GBT350 survey of the Northern Galactic Plane for radio pulsars and transients (2008)
Hessels, J.W.T., Ransom, S.M., Kaspi, V.M., Roberts, M.S.E., Champion, D.J., Stappers, B.W.
Using the Green Bank Telescope (GBT) and Pulsar Spigot at 350 MHz, we have surveyed the Northern Galactic Plane for pulsars and radio transients. This survey covers roughly 1000 square degrees of sky...
Eight new MSPs in NGC 6440 and NGC 6441 (2008)
Freire, P.C.C., Ransom, S.M., Bégin, S., Stairs, I.H., Hessels, J.W.T., Frey, L.H., ...
We report the discovery of five new millisecond pulsars in the globular cluster NGC 6440 and three new ones in NGC 6441; each cluster has one previously known pulsar. Four of the new pulsars are...
Outburst of the 2 s Anomalous X-ray Pulsar 1E 1547.0-5408 (2007)
Halpern, J. P., Gotthelf, E. V., Reynolds, J., Ransom, S. M., Camilo, F.
Following our discovery of radio pulsations from the newly recognized Anomalous X-ray Pulsar (AXP) 1E 1547.0-5408, we initiated X-ray monitoring with the Swift X-ray Telescope, and obtained a single...
The GBT350 Survey of the Northern Galactic Plane for Radio Pulsars and Transients (2007)
Hessels, J. W. T., Ransom, S. M., Kaspi, V. M., Roberts, M. S. E., Champion, D. J., Stappers, B. W.
Using the Green Bank Telescope (GBT) and Pulsar Spigot at 350MHz, we have surveyed the Northern Galactic Plane for pulsars and radio transients. This survey covers roughly 1000 square degrees of sky...
1E 1547.0-5408: a radio-emitting magnetar with a rotation period of 2 seconds (2007)
Camilo, F., Ransom, S. M., Halpern, J. P., Reynolds, J.
The variable X-ray source 1E 1547.0-5408 was identified by Gelfand & Gaensler (2007) as a likely magnetar in G327.24-0.13, an apparent supernova remnant. No X-ray pulsations have been detected from...
A 1.4-GHz Arecibo Survey for Pulsars in Globular Clusters (2007)
Hessels, J. W. T., Ransom, S. M., Stairs, I. H., Kaspi, V. M., Freire, P. C. C.
We have surveyed all 22 known Galactic globular clusters observable with the Arecibo radio telescope and within 70kpc of the Sun for radio pulsations at ~1.4GHz. Data were taken with the Wideband...
The variable radio-to-X-ray spectrum of the magnetar XTE J1810-197 (2007)
Camilo, F., Ransom, S. M., Penalver, J., Karastergiou, A., Van Kerkwijk, M. H., Durant, M., ...
We have observed the 5.54s anomalous X-ray pulsar XTE J1810-197 at radio, millimeter, and infrared (IR) wavelengths, with the aim of learning about its broad-band spectrum. At the IRAM 30m telescope,...
Variability of 19 Millisecond Pulsars in 47 Tucanae with Chandra HRC-S (2007)
Cameron, P. B., Rutledge, R. E., Camilo, F., Bildsten, L., Ransom, S. M., Kulkarni, S. R.
We present results from our 830 ks observation of the globular cluster 47 Tucanae with the Chandra X-ray Observatory's High Resolution Camera-S. We limit our analysis here to the 19 previously known,...
VLBA measurement of the transverse velocity of the magnetar XTE J1810-197 (2007)
Helfand, D. J., Chatterjee, S., Brisken, W. F., Camilo, F., Reynolds, J., Van Kerkwijk, M. H., ...
We have obtained observations of the magnetar XTE J1810-197 with the Very Long Baseline Array at two epochs separated by 106 days, at wavelengths of 6 cm and 3.6 cm. Comparison of the positions...
Polarized radio emission from the magnetar XTE J1810-197 (2007)
Camilo, F., Reynolds, J., Johnston, S., Halpern, J. P., Ransom, S. M., Van Straten, W.
We have used the Parkes radio telescope to study the polarized emission from the anomalous X-ray pulsar XTE J1810-197 at frequencies of 1.4, 3.2, and 8.4 GHz. We find that the pulsed emission is...
Breton, R. P., Roberts, M. S. E., Ransom, S. M., Kaspi, V. M., Durant, M., Bergeron, P., ...
PSR J1744-3922 is a binary pulsar exhibiting highly variable pulsed radio emission. We report on a statistical multi-frequency study of the pulsed radio flux variability which suggests that this...
Variability of Nineteen Millisecond Pulsars in 47 Tucanae with CHANDRA/HRC-S (2007)
Cameron, P. B., Rutledge, R. E., Camilo, F., Bildsten, L., Ransom, S. M., Kulkarni, S. R.
We present results from our 830 ksec observation of the globular cluster 47 Tucanae with the Chandra X-ray Observatory's High Resolution Camera-S. We limit our analysis here to the 19 previously...
Neutron Stars and Black Holes in Star Clusters (2006)
Rasio, F. A., Baumgardt, H., Corongiu, A., D'Antona, F., Fabbiano, G., Fregeau, J. M., ...
This article was co-authored by all invited speakers at the Joint Discussion on `Neutron Stars and Black Holes in Star Clusters,' which took place during the IAU General Assembly in Prague, Czech...
Camilo, F., Cognard, I., Ransom, S. M., Halpern, J. P., Reynolds, J., Zimmerman, N., ...
We report on 9 months of observations of the radio-emitting anomalous X-ray pulsar XTE J1810-197 starting in 2006 May using the Nancay, Parkes, GBT, and VLA telescopes mainly at a frequency of 1.4...
A Survey of 56 Mid-latitude EGRET Error Boxes for Radio Pulsars (2006)
Crawford, F., Roberts, M. S. E., Hessels, J. W. T., Ransom, S. M., Livingstone, M., Tam, C. R., ...
We have conducted a radio pulsar survey of 56 unidentified gamma-ray sources from the 3rd EGRET catalog which are at intermediate Galactic latitudes (5 deg. < |b| < 73 deg.). For each source, four...
Arecibo and the ALFA Pulsar Survey (2006)
Van Leeuwen, J., Cordes, J. M., Lorimer, D. R., Freire, P. C. C., Camilo, F., Stairs, I. H., ...
The recently started Arecibo L-band Feed Array (ALFA) pulsar survey aims to find ~1000 new pulsars. Due to its high time and frequency resolution the survey is especially sensitive to millisecond...
Arecibo and the ALFA Pulsar Survey (2006)
Leeuwen, J. Van, Cordes, J.M., Lorimer, D.R., Freire, P.C.C., Camilo, F., Stairs, I.H., ...
The recently started Arecibo L-band Feed Array (ALFA) pulsar survey aims to find ¿ 1000 new pulsars. Due to its high time and frequency resolution the survey is especially sensitive to millisecond...
New Pulsars in the Globular Cluster M28 (2006)
Stairs, I.H., Begin, S., Ransom, S.M., Freire, P.C.C., Hessels, J.W.T., Katz, J., ...
We have discovered ten new pulsars in recent observations of the globular cluster M28 (NGC6626) with the Green Bank Telescope. M28 is now the globular cluster with the third largest population of...
Arecibo Pulsar Survey Using ALFA. II. The Young, Highly Relativistic Binary Pulsar J1906+0746 (2006)
Lorimer, D.R., Stairs, I.H., Cordes, J.M., Camilo, F., Faulkner, A.J., ...
We report the discovery of PSR J1906+0746, a young 144 ms pulsar in a highly relativistic 3.98 hr orbit with an eccentricity of 0.085 and expected gravitational wave coalescence time of ~300 Myr. The...
The young, highly relativistic binary pulsar J1906+0746 (2005)
Lorimer, D. R., Stairs, I. H., Freire, P. C. C., Cordes, J. M., Camilo, F., Faulkner, A. J., ...
We report the discovery of PSR J1906+0746, a young 144-ms pulsar in a highly relativistic 3.98-hr orbit with an eccentricity of 0.085 and expected gravitational wave coalescence time of 300 Myr. The...
PSR J1833-1034: Discovery of the Central Young Pulsar in the Supernova Remnant G21.5-0.9 (2005)
Camilo, F., Ransom, S. M., Gaensler, B. M., Slane, P. O., Lorimer, D. R., Reynolds, J., ...
We have discovered the pulsar associated with the supernova remnant G21.5-0.9. PSR J1833-1034, with spin period P = 61.8 ms and dispersion measure 169 pc/cc, is very faint, with pulse-averaged flux...
Arecibo Pulsar Survey Using ALFA. I. Survey Strategy and First Discoveries (2005)
Cordes, J. M., Freire, P. C. C., Lorimer, D. R., Camilo, F., Champion, D. J., Nice, D. J., ...
We report results from the initial stage of a long-term pulsar survey of the Galactic plane using the Arecibo L-band Feed Array (ALFA), a seven-beam receiver operating at 1.4 GHz with 0.3 GHz...
McGarry, M. B., Gaensler, B. M., Ransom, S. M., Kaspi, V. M., Veljkovik, S.
We present new X-ray timing and spectral results on the 8.0-second X-ray pulsar CXOU J010043.1-721134 from a series of observations using the Chandra X-ray Observatory. We find a spin period in 2004...
Discovery of 10 pulsars in an Arecibo drift-scan survey (2005)
Lorimer, D. R., Xilouris, K. M., Fruchter, A. S., Stairs, I. H., Camilo, F., Vazquez, A. M., ...
We present the results of a 430-MHz survey for pulsars conducted during the upgrade to the 305-m Arecibo radio telescope. Our survey covered a total of 1147 square degrees of sky using a drift-scan...
Fluctuation and morphological properties of the pulsars in J0737--3039 system (2004)
Ramachandran, R., Backer, D. C., Demorest, P., Ransom, S. M., Kaspi, V. M.
We describe the morphological and fluctuation properties of the pulsars in the double neutron star system, PSR J0737--3039. Pulsar B is seen in almost all orbital phases, except in the range of $\sim...
X-ray, Radio, and Optical Observations of the Putative Pulsar in the Supernova Remnant CTA 1 (2004)
Halpern, J. P., Gotthelf, E. V., Camilo, F., Helfand, D. J., Ransom, S. M.
A Chandra image of the central X-ray source RX J0007.0+7303 in the supernova remnant CTA 1 reveals a point source, a compact nebula, and a bent jet, all of which are characteristic of energetic,...
Ransom, S. M., Kaspi, V. M., Ramachandran, R., Demorest, P., Backer, D. C., Pfahl, E. D., ...
We report on the measurement at 820- and 1400-MHz of orbital modulation of the diffractive scintillation timescale from pulsar A in the double-pulsar system J0737-3039 using the Green Bank Telescope....
The PSR J0514-4002A binary system in NGC 1851 (2004)
Freire, P. C. C., Gupta, Y., Ransom, S. M., Ishwara-Chandra, C. H.
Using the Giant Metrewave Radio Telescope (GMRT), we have discovered PSR J0514-4002A, a binary millisecond pulsar in the globular cluster NGC 1851. This pulsar has a rotational period of 4.99 ms and...
Observations of PSR J2021+3651 and its X-ray Pulsar Wind Nebula G75.2+0.1 (2004)
Hessels, J. W. T., Roberts, M. S. E., Ransom, S. M., Kaspi, V. M., Romani, R. W., ...
We present results from X-ray and radio observations of the recently discovered young Vela-like pulsar PSR J2021+3651, which is coincident with the EGRET gamma-ray source GeV 2020+3658. A 19.0-ks...
Demorest, P., Ramachandran, R., Backer, D. C., Ransom, S. M., Kaspi, V., Arons, J., ...
We report here the first polarimetric measurements of the pulsars in the J0737-3039 binary neutron star system using the Green Bank Telescope. We conclude both that the primary star (A) has a wide...
Kaspi, V. M., Ransom, S. M., Backer, D. C., Ramachandran, R., Demorest, P., Arons, J., ...
We report on the first Green Bank Telescope observations at 427, 820 and 1400 MHz of the newly discovered, highly inclined and relativistic double pulsar binary. We focus on the brief eclipse of PSR...
Recent Globular Cluster Searches with Arecibo and the Green Bank Telescope (2002)
Ransom, S. M., Hessels, J. W. T., Stairs, I. H., Kaspi, V. M., Backer, D. C., Greenhill, L. J., ...
We report the discovery of seven new millisecond pulsars during 20 cm searches of 19 globular clusters using the recently upgraded Arecibo Telescope and the new Green Bank Telescope (GBT). Five of...
Camilo, F., Stairs, I. H., Lorimer, D. R., Backer, D. C., Ransom, S. M., Klein, B., ...
We report the discovery with the 100 m Green Bank Telescope of 65 ms radio pulsations from the X-ray pulsar J0205+6449 at the center of supernova remnant 3C58, making this possibly the youngest radio...
Camilo, F., Stairs, I. H., Lorimer, D. R., Backer, D. C., Ransom, S. M., Klein, B., ...
We report the discovery with the 100 m Green Bank Telescope of 65 ms radio pulsations from the X-ray pulsar J0205+6449 at the center of supernova remnant 3C 58, making this possibly the youngest...
ROSAT Timing of the LMC Pulsar 0540-69 (1997)
Eikenberry, S. S., Fazio, G. G., Ransom, S. M.
We present a timing study of the young rotation-powered pulsar 0540-69 in the Large Magellanic Cloud, based on 130 kiloseconds of archival ROSAT data spanning a $\sim 3$-year period. We use ``$f-...
An SSPM-Based High-Speed Near-Infrared Photometer for Astronomy (1996)
Eikenberry, S. S., Fazio, G. G., Ransom, S. M.
We describe the design, operation, and performance of a new high-speed infrared photometer using the Solid-State Photomultiplier (SSPM) detector. The SSPM was developed by Rockwell International...
Eikenberry, S. S., Fazio, G. G., Ransom, S. M., Middleditch, J., Kristian, J., Pennypacker, C. R.
We present evidence of wavelength-dependent variations within the infrared, optical, and ultraviolet pulse profile peaks of the Crab Nebula pulsar. The leading and trailing edge half-width...