Discovery of Three Pulsars from a Galactic Center Pulsar Population (2009)
Deneva, J. S., Cordes, J. M., Lazio, T. J. W.
We report the discovery of three pulsars whose large dispersion measures and angular proximity to \sgr indicate the existence of a Galactic center population of neutron stars. The relatively long...
Chatterjee, S., Brisken, W. F., Vlemmings, W. H. T., Goss, W. M., Lazio, T. J. W., Cordes, J. M., ...
Astrometry can bring powerful constraints to bear on a variety of scientific questions about neutron stars, including their origins, astrophysics, evolution, and environments. Using phase-referenced...
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...
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...
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...
Cordes Hankins, M. A. Mclaughlin, J. M. Cordes, T. H. Hankins, D. A. Moffett
We derive an upper limit of 3 mJy (95% conÐdence) for the Ñux density at 317 MHz of the Geminga pulsar (J0633]1746). Our results are based on 7 hours of fast-sampled VLA data, which we averaged...
Angular Broadening of Intraday Variable AGN. II. Interstellar and Intergalactic Scattering (2007)
Lazio, T. J. W., Ojha, R., Fey, A. L., Kedziora-Chudczer, L., Cordes, J. M., Jauncey, D. L., ...
We analyze a sample of 58 multi-wavelength, Very Long Baseline Array observations of active galactic nuclei (AGN) to determine their scattering properties. Approximately 75% of the sample consists of...
Carson, J. C., Eikenberry, S. S., Smith, J. J., Cordes, J. M.
In this second of a two-paper sequence, we present Monte Carlo population simulation results of brown dwarf companion data collected during the Cornell High-order Adaptive Optics Survey for brown...
Rocking the Lighthouse: Circumpulsar Asteroids and Radio Intermittency (2006)
We propose that neutral, circumpulsar debris entering the light cylinder can account for many time-dependent pulsar phenomena that are otherwise difficult to explain. Neutral material avoids...
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 pulsar survey using ALFA. I. survey strategy and first discoveries (2006)
Cordes, J.M., Freire, P.C.C., Lorimer, D.R., Deshpande, A.A., Ramachandran, R. Et Al.
Restricted Access till January 2009. (3 year embargo). An open access version is available at arXiv.org.
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...
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...
Transient radio bursts from rotating neutron stars (2005)
McLaughlin, M. A., Lyne, A. G., Lorimer, D. R., Kramer, M., Faulkner, A. J., Manchester, R. N., ...
The `radio sky' is relatively unexplored for transient signals, although the potential of radio-transient searches is high, as demonstrated recently by the discovery of a previously unknown type of...
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...
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...
Pulsar Astrometry at the Microarcsecond Level (2005)
Vlemmings, W. H. T., Chatterjee, S., Brisken, W. F., Lazio, T. J. W., Cordes, J. M., Thorsett, S. E., ...
Determination of pulsar parallaxes and proper motions addresses fundamental astrophysical questions. We have recently finished a VLBI astrometry project to determine the proper motions and parallaxes...
Getting Its Kicks: A VLBA Parallax for the Hyperfast Pulsar B1508+55 (2005)
Chatterjee, S., Vlemmings, W. H. T., Brisken, W. F., Lazio, T. J. W., Cordes, J. M., Goss, W. M., ...
The highest velocity neutron stars establish stringent constraints on natal kicks, asymmetries in supernova core collapse, and the evolution of close binary systems. Here we present the first results...
Arecibo timing and single-pulse observations of 17 pulsars (2005)
Champion, D. J., Lorimer, D. R., McLaughlin, M. A., Xilouris, K. M., Arzoumanian, Z., Freire, P. C. C., ...
We report on timing and single-pulse observations of 17 pulsars discovered at the Arecibo observatory. The highlights of our sample are the recycled pulsars J1829+2456, J1944+0907 and the drifting...
Pulsars as Tools for Fundamental Physics and Astrophysics (2005)
Cordes, J. M., Kramer, M., Lazio, T. J. W., Stappers, B. W., Backer, D. C., Johnston, S.
The sheer number of pulsars discovered by the SKA, in combination with the exceptional timing precision it can provide, will revolutionize the field of pulsar astrophysics. The SKA will provide a...
RFI Identification and Mitigation Using Simultaneous Dual Station Observations (2005)
Bhat, N. D. R., Cordes, J. M., Chatterjee, S., Lazio, T. J. W.
RFI mitigation is a critically important issue in radio astronomy using existing instruments as well as in the development of next-generation radio telescopes, such as the Square Kilometer Array...
A 2.1 Msolar pulsar measured by relativistic orbital decay (2005)
Nice, D. J., Splaver, E. M., Stairs, I. H., Löhmer, O., Jessner, A., Kramer, M., ...
Bhat, N. D. R., Cordes, J. M., Chatterjee, S., Lazio, T. J. W.
Radio frequency interference (RFI) mitigation is a critically important issue in radio astronomy using existing instruments as well as in the development of next generation radio telescopes, such as...
Bhat, N. D. R., Cordes, J. M., Chatterjee, S., Lazio, T. J. W.
Radio frequency interference (RFI) mitigation is a critically important issue in radio astronomy using existing instruments as well as in the development of next generation radio telescopes, such as...
The Exploration of the Unknown (2004)
Wilkinson, P. N., Kellermann, K. I., Ekers, R. D., Cordes, J. M., Lazio, T. Joseph W.
The Square Kilometre Array is conceived as a telescope which will both test fundamental physical laws and transform our current picture of the Universe. However, the scientific challenges outlined in...
The Microarcsecond Sky and Cosmic Turbulence (2004)
Lazio, T. Joseph W., Cordes, J. M., De Bruyn, A. G.
Radio waves are imprinted with propagation effects from ionized media through which they pass. Owing to electron density fluctuations, compact sources (pulsars, masers, and compact extragalactic...
Strong-Field Tests of Gravity Using Pulsars and Black Holes (2004)
Kramer, M., Backer, D. C., Cordes, J. M., Lazio, T. J. W., Stappers, B. W., Johnston, S.
The sensitivity of the SKA enables a number of tests of theories of gravity. A Galactic Census of pulsars will discover most of the active pulsars in the Galaxy beamed toward us. In this census will...
Eikenberry, S. S., Chatterjee, S., Kaplan, D. L., ...
The radio pulsar B1951+32 and the supernova remnant CTB 80 provide a rich laboratory for the study of neutron stars and supernova remnants. Here, we present ground-based optical and near-infrared...
New Binary and Millisecond Pulsars from Arecibo Drift-Scan Searches (2004)
McLaughlin, M. A., Lorimer, D. R., Champion, D. J., Arzoumanian, Z., Backer, D. C., Cordes, J. M., ...
We discuss four recycled pulsars found in Arecibo drift-scan searches. PSR J1944+0907 has a spin period of 5.2 ms and is isolated. The 5.8-ms pulsar J1453+19 may have a low-mass companion. We discuss...
Separated at Birth: The origin of the pulsars B2020+28 and B2021+51 in the Cygnus Superbubble (2004)
Vlemmings, W. H. T., Cordes, J. M., Chatterjee, S.
High precision astrometric data have enabled us to determine the trajectories through the Galactic potential for a growing number of pulsars. This has resulted in the discovery of a pulsar pair...
PSR J1829+2456: a relativistic binary pulsar (2004)
Champion, D. J., Lorimer, D. R., McLaughlin, M. A., Cordes, J. M., Arzoumanian, Z., Weisberg, J. M., ...
We report the discovery of a new binary pulsar, PSR J1829+2456, found during a mid-latitude drift-scan survey with the Arecibo telescope. Our initial timing observations show the 41-ms pulsar to be...
Strong-field tests of gravity using pulsars and black holes (2004)
Kramer, M., Backer, D.C., Cordes, J.M., Lazio, T.J.W., Stappers, B.W., Johnston, S.
The sensitivity of the SKA enables a number of tests of theories of gravity. A Galactic Census of pulsars will discover most of the active pulsars in the Galaxy beamed toward us. In this census will...
Pulsars as tools for fundamental physics & astrophysics (2004)
Cordes, J.M., Kramer, M., Lazio, T.J.W., Stappers, B.W., Backer, D.C., Johnston, S.
The sheer number of pulsars discovered by the SKA, in combination with the exceptional timing precision it can provide, will revolutionize the field of pulsar astrophysics. The SKA will provide a...
Cordes, J. M., Bhat, N. D. R., Hankins, T. H., McLaughlin, M. A., Kern, J.
We analyze the Crab pulsar at 10 frequencies from 0.43 to 8.8 GHz using data obtained at the Arecibo Observatory and report the spectral dependence of all pulse components and the rate of occurrence...
Cordes, J. M., Bhat, N. D. R., Hankins, T. H., McLaughlin, M. A., Kern, J.
We analyze the Crab pulsar at 10 frequencies from 0.43 to 8.8 GHz using data obtained at the Arecibo Observatory and report the spectral dependence of all pulse components and the rate of occurrence...
Pulsar Parallaxes at 5 GHz with the Very Long Baseline Array (2003)
Chatterjee, S., Cordes, J. M., Vlemmings, W. H. T., Arzoumanian, Z., Goss, W. M., Lazio, T. J. W.
We present the first pulsar parallaxes measured with phase-referenced pulsar VLBI observations at 5 GHz. Due to the steep spectra of pulsars, previous astrometric measurements have been at lower...
Smashing the Guitar: An Evolving Neutron Star Bow Shock (2003)
The Guitar nebula is a spectacular example of an H-alpha bow shock nebula produced by the interaction of a neutron star with its environment. The radio pulsar B2224+65 is traveling at ~800--1600 km/s...
Gamma-Ray Pulsars: Modeling and Searches (2003)
McLaughlin, M. A., Cordes, J. M.
Using a likelihood analysis (updated since McLaughlin & Cordes 2000) and EGRET detections, upper limits and diffuse background measurements, we find a best-fit luminosity law for the gamma-ray pulsar...
New Pulsars Discovered in Arecibo Drift-Scan Searches (2003)
McLaughlin, M. A., Lorimer, D. R., Champion, D. J., Xilouris, K., Arzoumanian, Z., Backer, D. C., ...
We report on new pulsars discovered in Arecibo drift-scan data. Processing of 2200 square degrees of data has resulted in the detection of 41 known and 12 new pulsars. New pulsars include two...
Weisberg, J. M., Cordes, J. M., Kuan, B., Devine, K. E., Green, J. T., Backer, D. C.
We have measured Faraday Rotation Measures (RMs) at Arecibo Observatory for 36 pulsars, 17 of them new. We combine these and earlier measurements to study the galactic magnetic field and its possible...
PSR J0609+2130: A disrupted binary pulsar? (2003)
Lorimer, D. R., McLaughlin, M. A., Arzoumanian, Z., Xilouris, K. M., Cordes, J. M., Lommen, A. N., ...
We report the discovery and initial timing observations of a 55.7-ms pulsar, J0609+2130, found during a 430-MHz drift-scan survey with the Arecibo radio telescope. With a spin-down rate of $3.1...
Cordes, J. M., Bhat, N. D. R., Hankins, T. H., McLaughlin, M. A., Kern, J.
We analyze the Crab pulsar at ten frequencies from 0.43 to 8.8 GHz using data obtained at the Arecibo Observatory. Giant pulses occur only in the main and interpulse components manifest from radio...
Searches for Fast Radio Transients (2003)
Cordes, J. M., McLaughlin, M. A.
We discuss optimal detection of fast radio transients from astrophysical objects while taking into account the effects of propagation through intervening ionized media, including dispersion,...
Searches for Giant Pulses from Extragalactic Pulsars (2003)
McLaughlin, M. A., Cordes, J. M.
We discuss the giant-pulse phenomenon exhibited by pulsars and the distances to which giant pulses might be detected from extragalactic pulsars. We describe the conditions under which a single-pulse...
Cordes, J. M., Lazio, T. J. W.
In Paper I we present a new model for the Galactic distribution of free electrons. In this paper we describe the input data and methodology for determining the structure and parameters of the model....
Chandra observations of the Guitar Nebula (2003)
Wong, D. S., Cordes, J. M., Chatterjee, S., Zweibel, E. G., Finley, J. P., Romani, R. W., ...
As part of a multi-wavelength study, we report on a 50 ks Chandra/ACIS observation of the Guitar Nebula, a bow shock nebula associated with the radio pulsar B2224+65. We see a "hot spot" at the tip...
New Pulsars from Arecibo Drift-Scan Searches (2002)
McLaughlin, M. A., Lorimer, D. R., Arzoumanian, Z., Backer, D. C., Cordes, J. M., Fruchter, A., ...
We report new pulsars discovered in drift-scan data taken by two collaborations (Berkeley/Cornell and STScI/NAIC) during the latter stages of the Arecibo upgrade period. The data were taken with the...
A CLEAN-based Method for Deconvolving Interstellar Pulse Broadening from Radio Pulses (2002)
Bhat, N. D. R., Cordes, J. M., Chatterjee, S.
Multipath propagation in the interstellar medium distorts radio pulses, an effect predominant for distant pulsars observed at low frequencies. Typically, broadened pulses are analyzed to determine...
NE2001.I. A New Model for the Galactic Distribution of Free Electrons and its Fluctuations (2002)
Cordes, J. M., Lazio, T. J. W.
We present a new model for the Galactic distribution of free electrons. It (a) describes the distribution of the free electrons responsible for pulsar dispersion measures and thus can be used for...
Bow Shocks from Neutron Stars: Scaling Laws and HST Observations of the Guitar Nebula (2002)
The interaction of high-velocity neutron stars with the interstellar medium produces bow shock nebulae, where the relativistic neutron star wind is confined by ram pressure. We present...
PSR J1740+1000: A Young Pulsar Well Out of the Galactic Plane (2002)
McLaughlin, M.A., Arzoumanian, Z., Cordes, J.M., Backer, D.C., Lommen, A.N., Lorimer, D.R., ...
An Arecibo Drift-Scan Search for Rapidly Rotating Radio Pulsars (2002)
Lorimer, D.R., McLaughlin, M.A., Xilouris, K., Backer, D.C., Cordes, J.M., Arzoumanian, Z., ...
Arecibo observations of parkes multibeam pulsars (2002)
Bhat, N. D. R., Camilo, F., Cordes, J. M., Nice, D. J., Lorimer, D. R., Chatterjee, S.
The on-going Parkes multibeam survey has been astoundingly successful (Manchester et al. 2001), and its discovery of over 600 pulsars has opened up new avenues for probing the Galaxy's electron...
Arecibo observations of parkes multibeam pulsars (2002)
Bhat, N. D. R., Camilo, F., Cordes, J. M., Nice, D. J., Lorimer, D. R., Chatterjee, S.
The on-going Parkes multibeam survey has been astoundingly successful (Manchester et al. 2001), and its discovery of over 600 pulsars has opened up new avenues for probing the Galaxy's electron...
PSR J1740+1000: A Young Pulsar Well Out Of The Galactic Plane (2001)
McLaughlin, M. A., Arzoumanian, Z., Cordes, J. M., Backer, D. C., Lommen, A. N., Lorimer, D. R., ...
We discuss PSR J1740+1000, one of five pulsars recently discovered in a search of 470 square degrees at 430 MHz during the upgrade of the 305-m Arecibo telescope. The period of 154 ms and period...
The Velocity Distribution of Isolated Radio Pulsars (2001)
Arzoumanian, Z., Chernoff, D. F., Cordes, J. M.
(Abridged) We infer the velocity distribution of radio pulsars by modelling their birth, evolution, and detection in large-scale 0.4 GHz pulsar surveys, and by comparing model distributions of...
Upper limits on periodic, pulsed radio emission from the x-ray point source in Cassiopeia A (2001)
McLaughlin, M.A., Cordes, J.M., Deshpande, A.A., Gaensler, B.M., Hankins, T.H., Kaspi, V.M., ...
The Chandra X-Ray Observatory recently discovered an X-ray point source near the center of Cassiopeia A, the youngest known Galactic supernova remnant. We have conducted a sensitive search for radio...
Faint Scattering Around Pulsars: Probing the Interstellar Medium on Solar System Size Scales (2000)
Stinebring, D. R., McLaughlin, M. A., Cordes, J. M., Becker, K. M., Goodman, J. E. Espinoza, Kramer, M. A., ...
We have made high-resolution, high-sensitivity dynamic spectra of a sample of strong pulsars at 430 MHz with the Arecibo radiotelescope. For 4 pulsars we find faint but sharply delineated features in...
Upper Limits On Periodic, Pulsed Radio Emission from the X-Ray Point Source in Cassiopeia A (2000)
McLaughlin, M. A., Cordes, J. M., Deshpande, A. A., Gaensler, B. M., Hankins, T. H., Kaspi, V. M., ...
The Chandra X-ray Observatory recently discovered an X-ray point source near the center of Cassiopeia A, the youngest known Galactic supernova remnant. We have conducted a sensitive search for radio...
Parallax and Kinematics of PSR B0919+06 from VLBA Astrometry and Interstellar Scintillometry (2000)
Chatterjee, S, Cordes, J M, Lazio, T J W, Goss, W M, Fomalont, E B, Benson, J M
Results are presented from a long-term astrometry program on PSR B0919+06 using the NRAO Very Long Baseline Array. With ten observations (seven epochs) between 1994--2000, we measure a proper motion...
Parallax and Kinematics of PSR B0919+06 from VLBA Astrometry and Interstellar Scintillometry (2000)
Chatterjee, S., Cordes, J. M., Lazio, T. J. W., Goss, W. M., Fomalont, E. B., Benson, J. M.
Results are presented from a long-term astrometry program on PSR B0919+06 using the NRAO Very Long Baseline Array. With ten observations (seven epochs) between 1994--2000, we measure a proper motion...
Parallax and Kinematics of PSR B0919+06 from VLBA Astrometry and Interstellar Scintillometry (2000)
Chatterjee, S, Cordes, J M, Lazio, T J W, Goss, W M, Fomalont, E B, Benson, J M
Results are presented from a long-term astrometry program on PSR B0919+06 using the NRAO Very Long Baseline Array. With ten observations (seven epochs) between 1994--2000, we measure a proper motion...
Interstellar Seeing. I. Superresolution Techniques Using Radio Scintillation (2000)
Interstellar scintillation can be used to probe transverse sizes of radio sources on scales inaccessible to the nominal resolution of any terrestrial telescope, e.g. $\lesssim 10^{-6}$ arc sec....
Interstellar Seeing. II. The Case of the Vela Pulsar: Source Unresolved (2000)
I use a method based on interstellar scintillations for discerning information about source sizes on scales less than one micro-arc sec. I use a comprehensive model for a pulsar signal, scintillated...
Anomalous Radio-Wave Scattering from Interstellar Plasma Structures (2000)
Cordes, J. M., Lazio, T. Joseph W.
This paper considers scattering screens that have arbitrary spatial variations of scattering strength transverse to the line of sight, including screens that are spatially well confined, such as...
The Gamma Ray Pulsar Population (1999)
McLaughlin, M. A., Cordes, J. M.
We apply a likelihood analysis to pulsar detections, pulsar upper limits, and diffuse background measurements from the OSSE and EGRET instruments on the Compton Gamma Ray Observatory to constrain the...
A VLA Search for the Geminga Pulsar: A Bayesian Limit on a Scintillating Source (1999)
McLaughlin, M. A., Cordes, J. M., Hankins, T. H., Moffett, D. A.
We derive an upper limit of 3 mJy (95% confidence) for the flux density at 317 MHz of the Geminga pulsar (J0633+1746). Our results are based on 7 hours of fast-sampled VLA data, which we averaged...
Lazio, T.J.W., Anantharamaiah, K.R., Goss, W.M., Kassim, N.E., Cordes, J.M.
G359.87+0.18 is an enigmatic object located 15' from Sgr A*. It has been variously classified as an extragalactic source, a Galactic jet source, and a young supernova remnant. We present new...
Hyperstrong radio-wave scattering and free electrons in the galactic center (1999)
Lazio, T.J.W., Cordes, J.M., Anantharamaiah, K.R., Goss, W.M., Kassim, N.E.
Restricted Access. The Central Parsecs of the Galaxy, ASP Conference Series, Vol. 186. Eds. Heino Falcke, Angela Cotera, Wolfgang J. Duschl, Fulvio Melia, and Marcia J. Rieke, 1999.
Pulsar Spin-up, Kinematics, and the Birthrate of Neutron Star Binaries (1998)
Arzoumanian, Z., Cordes, J. M., Wasserman, I.
From considerations of spin evolution and kinematics in the galactic potential, we argue that the pulsars B1913+16, B1534+12, and B2127+11C may be younger than previously assumed, and we find that a...
Radio Transients, Stellar End Products, and SETI Working Group Report (1998)
Lazio, T. J. W., Backer, D., Cordes, J. M., Jonas, J., Kramer, M.
This working group (WG) has identified the following projects as forefront science to be pursued with the Square Kilometer Array (SKA) and which drive specifications of the SKA. In particular,...
Neutron Star Population Dynamics.II: 3D Space Velocities of Young Pulsars (1997)
Cordes, J. M., Chernoff, David F.
We use astrometric, distance and spindown data on pulsars to: (1) estimate three-dimensional velocity components, birth distances from the galactic plane, and ages of individual objects; (2)...
Neutron Star Population Dynamics.I: Millisecond Pulsars (1997)
Cordes, J. M., Chernoff, David F.
We study the field millisecond pulsar (MSP) population to infer its intrinsic distribution in spin period and luminosity and to determine its spatial distribution within the Galaxy. Our likelihood...
Optical Studies of Millisecond Pulsar Companions (1995)
S. C. Lundgren, J. M. Cordes, R. S. Foster, A. Wolszczan, F. Camilo
In observations of four binary millisecond pulsars with the Palomar 200-inch telescope, we have detected white dwarf companions to PSRs J1640+2224 and J2145\Gamma0750 and placed upper limits of m r =...
Anisotropic Scattering of OH/IR Stars Towards the Galactic Center (1994)
Frail, D. A., Diamond, P. J., Cordes, J. M., Van Langevelde, H. J.
We have made angular broadening measurements in the satellite line of the OH molecule at 1612 MHz of 8 OH/IR stars located near the Galactic Center with the Very Large Array. Early observations with...