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相关论文: Constraints on the Emission Geometries and Spin Ev…

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Millisecond pulsars (MSPs) have been established as a class of high-energy ($\geq$0.1 GeV) emitters with the Large Area Telescope (LAT) aboard the \emph{Fermi Gamma-ray Space Telescope}. Most MSP gamma-ray light curves display sharp peaks…

高能天体物理现象 · 物理学 2012-09-19 T. J. Johnson

Significant gamma-ray pulsations have been detected from ~40 millisecond pulsars (MSPs) using 3 years of sky-survey data from the Fermi LAT and radio timing solutions from across the globe. We have fit the radio and gamma-ray pulse profiles…

高能天体物理现象 · 物理学 2019-08-14 T. J. Johnson , A. K. Harding , C. Venter , J. E. Grove

An interesting new high-energy pulsar sub-population is emerging following early discoveries of gamma-ray millisecond pulsars (MSPs) by the Fermi Large Area Telescope (LAT). We present results from 3D emission modeling, including the…

高能天体物理现象 · 物理学 2014-11-20 C. Venter , A. K. Harding , L. Guillemot

The nine millisecond pulsars (MSPs) that have now been detected by Fermi-LAT are providing an excellent opportunity to probe the emission geometry of these ancient compact objects. As they are radio-loud, one may use the relative phase lags…

高能天体物理现象 · 物理学 2009-12-15 C. Venter , A. K. Harding , L. Guillemot

Fermi Large Area Telescope (LAT) has recently detected 8 gamma-ray millisecond pulsars (MSPs), providing an unprecedented opportunity to probe the magnetospheres of these low-spin-down pulsars. We performed 3D emission modeling, including…

高能天体物理现象 · 物理学 2009-11-26 C. Venter , A. K. Harding , L. Guillemot

Pulsed gamma rays have been detected with the Fermi Large Area Telescope (LAT) from more than 20 millisecond pulsars (MSPs), some of which were discovered in radio observations of bright, unassociated LAT sources. We have fit the radio and…

高能天体物理现象 · 物理学 2011-11-04 Tyrel J. Johnson , Alice K. Harding , Christo Venter

Pulsed gamma-ray emission from millisecond pulsars (MSPs) has been detected by the sensitive Fermi, which sheds light on studies of the emission region and mechanism. In particular, the specific patterns of radio and gamma-ray emission from…

高能天体物理现象 · 物理学 2015-06-12 YuanJie Du , GuoJun Qiao , Ding Chen

The Fermi Large Area Telescope, in collaboration with several groups from the radio community, have had marvellous success at uncovering new gamma-ray millisecond pulsars (MSPs). In fact, MSPs now make up a sizable fraction of the total…

高能天体物理现象 · 物理学 2015-05-19 C. Venter , A. K. Harding , T. J. Johnson

The gamma-ray population of millisecond pulsars (MSPs) detected by the Fermi Large Area Telescope (LAT) has been steadily increasing. A number of the more recent detections, including PSR J0034-0534, PSR J1939+2134 (B1937+21; the first MSP…

高能天体物理现象 · 物理学 2011-11-08 C. Venter , T. J. Johnson , A. K. Harding

We present a summary of gamma-ray millisecond pulsar (MSP) observations with the Fermi Large Area Telescope. The radio and gamma-ray light curves of these MSPs have been modeled in the framework of the retarded vacuum dipole magnetic field.…

高能天体物理现象 · 物理学 2019-08-14 Tyrel J. Johnson , Christo Venter , Alice K. Harding , Lucas Guillemot

The Fermi Large Area Telescope (LAT) has revolutionized high-energy (HE) astronomy, and is making enormous contributions particularly to gamma-ray pulsar science. As a result of the many new pulsar discoveries, the gamma-ray pulsar…

高能天体物理现象 · 物理学 2011-12-15 C. Venter , T. J. Johnson , A. K. Harding

Millisecond pulsars (MSPs) have been firmly established as a class of gamma-ray emitters via the detection of pulsations above 0.1 GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using thirteen months of LAT data significant…

高能天体物理现象 · 物理学 2015-05-18 The Fermi LAT Collaboration , Pulsar Timing Consortium

{\it Fermi}-LAT has detected pulsed gamma-ray emissions with high confidences from more than 40 millisecond pulsars (MSPs). Here we study the phase-averaged gamma-ray properties of MSPs by using revised version of a self-consistent outer…

高能天体物理现象 · 物理学 2017-02-22 Z. J. Jiang , S. B. Chen , X. Li , L. Zhang

We modelled the radio and gamma-ray light curves of millisecond pulsars using outer gap, two-pole caustic, low-altitude slot gap, and pair-starved polar cap geometric models, combined with a semi-empirical conal radio model. We find that no…

高能天体物理现象 · 物理学 2014-11-04 C Venter , TJ Johnson , AK Harding , JE Grove

Since the launch of the Fermi Gamma-Ray Space Telescope, several hundred gamma-ray pulsars have been discovered, some being radio-loud and some radio-quiet with time-aligned radio and gamma-ray light curves. In the second Fermi Pulsar…

高能天体物理现象 · 物理学 2021-03-17 O. Benli , J. Petri , Dipanjan Mitra

We report on the discovery of gamma-ray pulsations from five millisecond pulsars (MSPs) using the Fermi Large Area Telescope (LAT) and timing ephemerides provided by various radio observatories. We also present confirmation of the gamma-ray…

We study the gamma-ray spectra of 30 globular clusters (GCs) thus far detected with the Fermi Gamma-ray Space Telescope. Presuming that gamma-ray emission of a GC comes from millisecond pulsars (MSPs) contained in, a model that generates…

高能天体物理现象 · 物理学 2022-03-14 Wei Wu , Zhongxiang Wang , Yi Xing , Pengfei Zhang

The population of $\gamma$-ray emitting millisecond pulsars (MSPs) is studied by using Monte-Carlo techniques. We simulate the Galactic distributions of the MSPs, and apply the outer gap model for the $\gamma$-ray emission from each…

高能天体物理现象 · 物理学 2017-02-22 J. Takata , Y. Wang , K. S. Cheng

Understanding the physics of rotation-powered millisecond pulsars (MSPs) presents a number of challenges compared to that of the non-recycled pulsar population. Even though their fast rotation rates can produce high spin-down power and…

高能天体物理现象 · 物理学 2022-04-06 Alice K. Harding

The $Fermi$-LAT has revealed that rotation powered millisecond pulsars (MSPs) are a major contributor to the Galactic $\gamma$-ray source population. Such pulsars may also be important in modeling the quiescent state of several low mass…

高能天体物理现象 · 物理学 2015-06-03 J. Takata , K. S. Cheng , R. E. Taam
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