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Optical observations of pulsars are crucial to study the neutron star properties, from the structure and composition of the interior, to the properties and geometry of the magnetosphere. Historically, X and gamma-ray observations have paved…

High Energy Astrophysical Phenomena · Physics 2015-05-30 R. P. Mignani , A. Shearer , A. De Luca , P. Moran , S. Collins , M. Marelli

PSR J1048-5832 is a Vela-like (P=123.6 ms; tau~20.3 kyr) gamma-ray pulsar detected by Fermi, at a distance of ~2.7 kpc and with a rotational energy loss rate dot{E}_{SD} ~2 x 10^{36} erg/s. The PSR J1048-5832 field has been observed with…

High Energy Astrophysical Phenomena · Physics 2015-06-11 M. Razzano , R. P. Mignani , M. Marelli , A. de Luca

(abridged) PSR J1048-5832 is a young Vela-like pulsar that was recently detected in gamma-rays with Fermi, and also in X-rays with Chandra and XMM-Newton. It powers a compact PWN visible in X-rays. We present deep optical observations with…

Solar and Stellar Astrophysics · Physics 2013-04-17 Andrey Danilenko , Aida Kirichenko , Jesper Sollerman , Yury Shibanov , Dima Zyuzin

We report the detection of gamma-ray pulsations (> 0.1 GeV) from PSR J2229+6114 and PSR J1048-5832, the latter having been detected as a low-significance pulsar by EGRET. Data in the gamma-ray band were acquired by the Large Area Telescope…

High Energy Astrophysical Phenomena · Physics 2009-12-04 Fermi LAT collaboration , Fermi Pulsar Timing Consortium

PSR J1357-6429 is a Vela-like radio pulsar that has been recently detected with Chandra and Fermi, which, like Vela, powers a compact X-ray pulsar wind nebula and X-ray-radio plerion associated with an extended TeV source. We present our…

Solar and Stellar Astrophysics · Physics 2014-02-11 Aida Kirichenko , Andrey Danilenko , Ronald E. Mennickent , George Pavlov , Yury Shibanov , Sergey Zharikov , Dmitry Zyuzin

We report on deep VLT observations of the fields of two nearby, isolated millisecond pulsars PSR J1744-1134 and PSR J1024-0719. Both objects are old neutron stars with characteristic age $\tau \ge 10^9$ yr and have relatively high spin-down…

Astrophysics · Physics 2011-05-23 F. K. Sutaria , A. Ray , A. Reisenegger , G. Hertling , H. Quintana , D. Minniti

The Fermi Large Area Telescope (LAT) discovered the time signature of a radio-silent pulsar coincident with RX J0007.0+7302, a plerion-like X-ray source at the centre of the CTA 1 supernova remnant. The inferred timing parameters of the…

High Energy Astrophysical Phenomena · Physics 2015-06-12 R. P. Mignani , A. de Luca , N. Rea , A. Shearer , S. Collins , D. F. Torres , D. Hadasch , A. Caliandro

The Vela pulsar is the brightest persistent source in the GeV sky and thus is the traditional first target for new gamma-ray observatories. We report here on initial Fermi Large Area Telescope observations during verification phase pointed…

Astrophysics · Physics 2009-11-13 A. A. Abdo

We report the analysis of the first deep optical observations of three isolated $\gamma$-ray pulsars detected by the {\em Fermi Gamma-ray Space Telescope}: the radio-loud PSR\, J0248+6021 and PSR\, J0631+1036, and the radio-quiet PSR\,…

High Energy Astrophysical Phenomena · Physics 2016-09-07 R. P. Mignani , N. Rea , V. Testa , M. Marelli , A. De Luca , M. Pierbattista , A. Shearer , D. F. Torres , E. De Ona Wilhelmi

We used optical images taken with the Very Large Telescope (VLT) in the B and V bands to search for the optical counterpart of PSR J1028-5819 or constrain its optical brightness. At the same time, we used an archival Suzaku observation to…

High Energy Astrophysical Phenomena · Physics 2015-06-05 R. P. Mignani , M. Razzano , P. Esposito , A. De Luca , M. Marelli , S. R. Oates , P. Saz-Parkinson

Since the launch of the Fermi satellite, the number of known gamma-ray pulsars has increased tenfold. Most gamma-ray detected pulsars are young and energetic, and many are associated with TeV sources. PSR J1357-6429 is a high spin-down…

We report the discovery of eight gamma-ray pulsars in blind frequency searches using the LAT, onboard the Fermi Gamma-ray Space Telescope. Five of the eight pulsars are young (tau_c<100 kyr), energetic (Edot>10^36 erg/s), and located within…

We report on the first deep optical observations of two $\gamma$-ray pulsars, both among the very first discovered by the {\em Fermi} Gamma-ray Space Telescope. The two pulsars are the radio-loud PSR\, J1907+0602 in the TeV pulsar wind…

High Energy Astrophysical Phenomena · Physics 2016-09-21 R. P. Mignani , V. Testa , M. Marelli , A. De Luca , M. Pierbattista , M. Razzano , D. Salvetti , A. Belfiore , A. Shearer , P. Moran

Most pulsars observed by the Fermi LAT have gamma-ray luminosities scaling with spindown power Edot as L_gamma (Edot x 10^33 erg/s)^{1/2}. However, there exist one detection and several upper limits an order of magnitude or more fainter…

High Energy Astrophysical Phenomena · Physics 2015-05-28 R. W. Romani , M. Kerr , H. A. Craig , S. Johnston , I. Cognard , D. A. Smith

The discovery of the gamma-ray pulsar PSR J1836+5925, powering the formerly unidentified EGRET source 3EG J1835+5918, was one of the early accomplishments of the Fermi Large Area Telescope (LAT). Sitting 25 degrees off the Galactic plane,…

Astrophysics of Galaxies · Physics 2015-05-18 The Fermi LAT Collaboration

The Fermi Large Area Telescope (LAT) is a powerful pulsar detector, as demonstrated by the over one hundred objects in its second catalog of pulsars. Pass 8 is a new reconstruction and event selection strategy developed by the Fermi-LAT…

High Energy Astrophysical Phenomena · Physics 2019-08-14 H. Laffon , D. A. Smith , L. Guillemot

We report on analysis of timing and spectroscopy of the Vela pulsar using eleven months of observations with the Large Area Telescope on the Fermi Gamma-Ray Space Telescope. The intrinsic brightness of Vela at GeV energies combined with the…

High Energy Astrophysical Phenomena · Physics 2015-05-18 A. A. Abdo

We report the discovery of four gamma-ray pulsars, detected in computing-intensive blind searches of data from the Fermi Large Area Telescope (LAT). The pulsars were found using a novel search approach, combining volunteer distributed…

(Abridged) PSR J1357-6429 is a Vela-like radio pulsar that has been recently detected in X-rays and gamma-rays. It powers a compact tail-like X-ray pulsar wind nebula and X-ray-radio plerion associated with an extended TeV source HESS…

Solar and Stellar Astrophysics · Physics 2012-04-26 A. Danilenko , A. Kirichenko , R. E. Mennickent , G. Pavlov , Yu. Shibanov , S. Zharikov , D. Zyuzin

The Vela pulsar is one of the most exciting gamma-ray sources and has been at the forefront of high-energy pulsar science since the detection of gamma-ray pulsations at the radio period by SAS-2 in 1975. With the unprecedented angular…

High Energy Astrophysical Phenomena · Physics 2009-12-22 T. J. Johnson , Ö. Çelik , M. Kerr , A. K. Harding , G. A. Caliandro
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