Fernando Camilo

No Neutron Star Companion To The Lowest Mass SDSS White Dwarf (2009)

Agueros, Marcel, Heinke, Craig, Camilo, Fernando, Kilic, Mukremin, Anderson, Scott, Freire, Paulo, ...

SDSS J091709.55+463821.8 (hereafter J0917+4638) is the lowest surface gravity white dwarf (WD) currently known, with log g = 5.55 +/- 0.05 (M ~ 0.17 M_sun; Kilic et al. 2007a,b). Such low-mass white...

A Radio Search For Pulsar Companions To SDSS Low-Mass White Dwarfs (2009)

Agueros, Marcel A., Camilo, Fernando, Silvestri, Nicole M., Kleinman, S. J., Anderson, Scott F., Liebert, James W.

We have conducted a search for pulsar companions to 15 low-mass white dwarfs (LMWDs; M < 0.4 M_Sun) at 820 MHz with the NRAO Green Bank Telescope (GBT). These LMWDs were spectroscopically identified...

X-ray and Radio Timing of the Pulsar in 3C 58 (2009)

Livingstone, Margaret A., Ransom, Scott, Camilo, Fernando, Kaspi, Victoria M., Lyne, Andrew, Kramer, Michael, ...

We present timing data spanning 6.4 yrs for the young and energetic PSR J0205+6449, in the supernova remnant 3C 58. Data were obtained with the Rossi X-ray Timing Explorer, the Jodrell Bank...

Relativistic Spin Precession in the Double Pulsar (2008)

Breton, Rene P., Kaspi, Victoria M., Kramer, Michael, McLaughlin, Maura A., Lyutikov, Maxim, Ransom, Scott 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...

An eccentric binary millisecond pulsar in the galactic plane (2008)

Champion, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Bassa, Cees, Kaspi, Victoria 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, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Bassa, Cees, Kaspi, Victoria 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, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Bassa, Cees, Kaspi, Victoria 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, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Bassa, Cees, Kaspi, Victoria 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, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Kaspi, Victoria M., Nice, David 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...

PSR J1856+0245: arecibo discovery of a young, energetic pulsar coincident with the TeV gamma-ray source HESS J1857+026 (2008)

Hessels, Jason W., Nice, David J., Gaensler, Bryan M., Kaspi, Victoria M., Lorimer, Duncan R., Champion, David 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...

An eccentric binary millisecond pulsar in the galactic plane (2008)

Champion, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Bassa, Cees, Kaspi, Victoria 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, David J., Ransom, Scott M., Lazarus, Patrick, Camilo, Fernando, Kaspi, Victoria M., Nice, David 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...

PSR J1856+0245: arecibo discovery of a young, energetic pulsar coincident with the TeV gamma-ray source HESS J1857+026 (2008)

Hessels, Jason W., Nice, David J., Gaensler, Bryan M., Kaspi, Victoria M., Lorimer, Duncan R., Champion, David 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 MSPs in NGC 6440 and NGC 6441 (2007)

Freire, Paulo C. C., Ransom, Scott M., Begin, Steve, Stairs, Ingrid H., Hessels, Jason W. T., Frey, Lucille 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...

Eight New Millisecond Pulsars in NGC 6440 and NGC 6441 (2007)

Freire, Paulo C. C., Ransom, Scott M., Begin, Steve, Stairs, Ingrid H., Hessels, Jason W. T., Frey, Lucille 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...

Neutral Hydrogen Absorption Toward XTE J1810-197: the Distance to a Radio-Emitting Magnetar (2007)

Minter, Anthony H., Camilo, Fernando, Ransom, Scott M., Halpern, Jules P., Zimmerman, Neil

We have used the Green Bank Telescope to measure HI absorption against the anomalous X-ray pulsar XTE J1810-197. Assuming a flat rotation curve, we find that XTE J1810-197 is located at a distance of...

The Radio Emission, X-ray Emission, and Hydrodynamics of G328.4+0.2: A Comprehensive Analysis of a Luminous Pulsar Wind Nebula, its Neutron Star, and the Progenitor Supernova Explosion (2007)

Gelfand, Joseph D., Gaensler, B. M., Slane, Patrick O., Patnaude, Daniel J., Hughes, John P., Camilo, Fernando

We present new observational results obtained for the Galactic non-thermal radio source G328.4+0.2 to determine both if this source is a pulsar wind nebula or supernova remnant, and in either case,...

Polarized radio emission from the magnetar XTE J1810-197 (2007)

Camilo, Fernando, Reynolds, John E., Johnston, Simon, Halpern, Jules P., Ransom, Scott M., Van Straten, Willem H.

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...

Polarized radio emission from the magnetar XTE J1810-197 (2007)

Camilo, Fernando, Reynolds, John E., Johnston, Simon, Halpern, Jules P., Ransom, Scott M., Van Straten, Willem H.

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...

Polarized radio emission from the magnetar XTE J1810-197 (2007)

Camilo, Fernando, Reynolds, John E., Johnston, Simon, Halpern, Jules P., Ransom, Scott M., Van Straten, Willem H.

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...

Polarized radio emission from the magnetar XTE J1810-197 (2007)

Camilo, Fernando, Reynolds, John E., Johnston, Simon, Halpern, Jules P., Ransom, Scott M., Van Straten, Willem

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...

Transient pulsed radio emission from a magnetar (2006)

Camilo, Fernando, Ransom, Scott, Halpern, Jules, Reynolds, John, Helfand, David, Zimmerman, Neil, ...

Anomalous X-ray pulsars (AXPs) are slowly rotating neutron stars with very bright and highly variable X-ray emission that are believed to be powered by ultra-strong magnetic fields of >1e14 G,...

Chandra X-Ray Observations of Nineteen Millisecond Pulsars in the Globular Cluster 47 Tucanae (2006)

Bogdanov, Slavko, Grindlay, Jonathan E., Heinke, Craig O., Camilo, Fernando, Freire, Paulo C. C., Becker, Werner

We present spectral and long-timescale variability analyses of \textit{Chandra} ACIS-S observations of the 19 millisecond pulsars (MSPs) with precisely known positions in the globular cluster 47...

A Radio Pulsar Spinning at 716 Hz (2006)

Hessels, Jason W. T., Ransom, Scott M., Stairs, Ingrid H., Freire, Paulo C. C., Kaspi, Victoria M., Camilo, Fernando

We have discovered a 716-Hz eclipsing binary radio pulsar in the globular cluster Terzan 5 using the Green Bank Telescope. It is the fastest-spinning neutron star ever found, breaking the 23-year-old...

Arecibo and the ALFA pulsar survey (2006)

Van Leeuwen, Joeri, Cordes, James M., Lorimer, Duncan R., Freire, Paulo C., Camilo, Fernando, Stairs, Ingrid 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, James M., Freire, Paulo C., Lorimer, Duncan R., Camilo, Fernando, Champion, David J., Nice, David 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...

Arecibo and the ALFA pulsar survey (2006)

Van Leeuwen, Joeri, Cordes, James M., Lorimer, Duncan R., Freire, Paulo C., Camilo, Fernando, Stairs, Ingrid 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, James M., Freire, Paulo C., Lorimer, Duncan R., Camilo, Fernando, Champion, David J., Nice, David 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...

Arecibo and the ALFA pulsar survey (2006)

Van Leeuwen, Joeri, Cordes, James M., Lorimer, Duncan R., Freire, Paulo C., Camilo, Fernando, Stairs, Ingrid 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, James M., Freire, Paulo C., Lorimer, Duncan R., Camilo, Fernando, Champion, David J., Nice, David 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...

Arecibo and the ALFA pulsar survey (2006)

Van Leeuwen, Joeri, Cordes, James M., Lorimer, Duncan R., Freire, Paulo C., Camilo, Fernando, Stairs, Ingrid 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, James M., Freire, Paulo C., Lorimer, Duncan R., Camilo, Fernando, Champion, David J., Nice, David 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...

Arecibo and the ALFA pulsar survey (2006)

Van Leeuwen, Joeri, Cordes, James M., Lorimer, Duncan R., Freire, Paulo C., Camilo, Fernando, Stairs, Ingrid 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, James M., Freire, Paulo C., Lorimer, Duncan R., Camilo, Fernando, Champion, David J., Nice, David 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...

Arecibo and the ALFA pulsar survey (2006)

Van Leeuwen, Joeri, Cordes, James M., Lorimer, Duncan R., Freire, Paulo C., Camilo, Fernando, Stairs, Ingrid 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, James M., Freire, Paulo C., Lorimer, Duncan R., Camilo, Fernando, Champion, David J., Nice, David 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...

Pulsars in Globular Clusters (2005)

Camilo, Fernando, Rasio, Frederic A.

More than 100 radio pulsars have been detected in 24 globular clusters. The largest observed samples are in Terzan 5 and 47 Tucanae, which together contain 45 pulsars. Accurate timing solutions,...

Twenty-One Millisecond Pulsars in Terzan 5 Using the Green Bank Telescope (2005)

Ransom, Scott M., Hessels, Jason W. T., Stairs, Ingrid H., Freire, Paulo C. C., Camilo, Fernando, Kaspi, Victoria M., ...

We have discovered 21 millisecond pulsars (MSPs) in the globular cluster Terzan 5 using the Green Bank Telescope, bringing the total of known MSPs in Terzan 5 to 24. These discoveries confirm...

Searches for Young Pulsars (2004)

Camilo, Fernando

I review the results of radio and X-ray searches for pulsations from young neutron stars, emphasizing work accomplished in the last five years. I cover undirected searches, as well as directed...

A multi-wavelength search for a counterpart of the unidentified gamma-ray source 3EG J2020+4017 (2CG078+2) (2004)

Becker, Werner, Weisskopf, Martin C., Arzoumanian, Zaven, Lorimer, Duncan, Camilo, Fernando, Elsner, Ronald F., ...

In search of the counterpart to the brightest unidentified gamma-ray source 3EG J2020+4017 we report on new X-ray and radio observations of the gamma-Cygni field with the Chandra X-ray Observatory...

X-Ray Timing of the Young Pulsar in 3C 58 (2004)

Ransom, Scott, Camilo, Fernando, Kaspi, Victoria, Slane, Patrick, Gaensler, Bryan, Gotthelf, Eric, ...

PSR J0205+6449 is a young pulsar in the Crab-like pulsar wind nebula 3C 58 which is thought to be a result of the historical supernova SN1181 CE. The 65.7-ms pulsar is the second most energetic of...

Multifrequency Observations of Radio Pulse Broadening and Constraints on Interstellar Electron Density Microstructure (2004)

Bhat, N. D. Ramesh, Cordes, James M., Camilo, Fernando, Nice, David J., Lorimer, Duncan R.

We have made observations of 98 low-Galactic-latitude pulsars to measure pulse broadening caused by multipath propagation through the interstellar medium. Data were collected with the 305-m Arecibo...

Multifrequency observations of radio pulse broadening and constraints on interstellar electron density microstructure (2004)

Bhat, N. D. R., Cordes, James M., Camilo, Fernando, Nice, David J., Lorimer, Duncan R.

We have made observations of 98 low Galactic latitude pulsars to measure pulse broadening caused by multipath propagation through the interstellar medium. Data were collected with the 305 m Arecibo...

Multifrequency observations of radio pulse broadening and constraints on interstellar electron density microstructure (2004)

Bhat, N. D. R., Cordes, James M., Camilo, Fernando, Nice, David J., Lorimer, Duncan R.

We have made observations of 98 low Galactic latitude pulsars to measure pulse broadening caused by multipath propagation through the interstellar medium. Data were collected with the 305 m Arecibo...

Deep Searches for Young Pulsars (2002)

Camilo, Fernando

By 2000 there were only 10 established Galactic pulsar-supernova remnant associations. Two years later there are 16 such associations known. I discuss the work leading to this substantial increase....

Probing the Masses of the PSR J0621+1002 Binary System Through Relativistic Apsidal Motion (2002)

Splaver, Eric M., Nice, David J., Arzoumanian, Zaven, Camilo, Fernando, Lyne, Andrew G., Stairs, Ingrid H.

Orbital, spin and astrometric parameters of the millisecond pulsar PSR J0621+1002 have been determined through six years of timing observations at three radio telescopes. The chief result is a...

A Millisecond Pulsar Optical Counterpart with Large-Amplitude Variability in the Globular Cluster 47 Tucanae (2002)

Edmonds, Peter D., Gilliland, Ronald L., Camilo, Fernando, Heinke, Craig O., Grindlay, Jonathan E.

Using extensive HST imaging, combined with Chandra X-ray and Parkes radio data, we have detected the optical binary companion to a second millisecond pulsar (MSP) in the globular cluster 47 Tucanae....

Arecibo timing observations of 17 pulsars along the Galactic plane (2001)

Lorimer, Duncan R., Camilo, Fernando, Xilouris, Kiraki

We present phase-coherent timing solutions obtained for the first time for 17 pulsars discovered at Arecibo by Hulse & Taylor (1975ab) in a 430-MHz survey of the Galactic plane. This survey remains...

Recently discovered pulsars and unidentified EGRET sources (2001)

Torres, Diego F., Butt, Yousaf M., Camilo, Fernando

We present a correlative study between all unidentified EGRET sources at low Galactic latitudes and the newly discovered pulsars in the released portion of the Parkes multibeam radio survey. We note...

Searching for Millisecond Pulsars in Globular Clusters at Parkes: Further Results (2001)

Possenti, Andrea, D'Amico, Nichi, Manchester, Richard N., Sarkissian, John, Lyne, Andrew G., Camilo, Fernando

We have discovered 12 new millisecond pulsars in 6 globular clusters in which no pulsars were previously known, in the first two years of a search at 1.4 GHz in progress at the Parkes radio...

Optical Detection of a Variable Millisecond Pulsar Companion in 47 Tucanae (2001)

Edmonds, Peter D., Gilliland, Ronald L., Heinke, Craig O., Grindlay, Jonathan E., Camilo, Fernando

Using results from radio and X-ray observations of millisecond pulsars in 47 Tucanae, and extensive HST U, V, I imaging of the globular cluster core, we have derived a common astrometric solution...

A Binary Millisecond Pulsar in Globular Cluster NGC6544 (2000)

Ransom, Scott M., Greenhill, Lincoln J., Herrnstein, James R., Manchester, Richard N., Camilo, Fernando, Eikenberry, Stephen S., ...

We report the detection of a new 3.06 ms binary pulsar in the globular cluster NGC6544 using a Fourier-domain ``acceleration'' search. With an implied companion mass of ~0.01 solar masses and an...

Millisecond Pulsars in 47 Tucanae (1999)

Freire, Paulo C., Camilo, Fernando, Lorimer, Duncan R., Lyne, Andrew G., Manchester, Richard N.

Recent observations of the globular cluster 47 Tuc, made with the Parkes telescope at a wavelength of 20 cm, have resulted in the discovery of nine new millisecond pulsars, all in binary systems. The...