Results 41 to 50 of about 172,919 (265)

Spectral signature of a free pulsar wind in the gamma-ray binaries LS 5039 and LSI +61$\degr$303 [PDF]

, 2008
LS 5039 and LSI +61$\degr$303 are two binaries that have been detected in the TeV energy domain. These binaries are composed of a massive star and a compact object, possibly a young pulsar.
Aharonian, Aharonian, Albert, B. Cerutti, Ball, Ball, Begelman, Blumenthal, Bogovalov, Bogovalov, Bosch-Ramon, Casares, Casares, Chernyakova, Dubus, Dubus, Dubus, Eichler, Fargion, G. Dubus, G. Henri, Grundstrom, Hartman, Johnston, Jones, Kennel, Khangulyan, Kirk, Komissarov, McSwain, Rees, Romero, Sierpowska, Stevens, Waters, Zdziarski   +35 more
core   +3 more sources

The Method of Bandwidth Extension of SiGe BiCMOS Microwave Variable-Gain Amplifier Integrated Circuit

Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017
The article proposes a method of bandwidth extension of the analog integrated circuit of the variable-gain amplifier (VGA) based on SiGe BiCMOS technology with the rules of 0.18 µm. The designed VGA has a linear (in dB) control characteristic.
E. M. Savchenko, A. S. Budiakov, P. S. Budiakov, N. N. Prokopenko   +3 more
doaj   +1 more source

GMRT Discovery of A Millisecond Pulsar in a Very Eccentric Binary System [PDF]

, 2004
We report the discovery of the binary millisecond pulsar J0514-4002A, which is the first known pulsar in the globular cluster NGC 1851 and the first pulsar discovered using the Giant Metrewave Radio Telescope (GMRT). The pulsar has a rotational period of
C. H. Ishwara-Chandra, D’Amico N., Johnston S., Paulo C. Freire, Scott M. Ransom, Yashwant Gupta   +5 more
core   +3 more sources

The International Pulsar Timing Array: second data release [PDF]

Monthly notices of the Royal Astronomical Society, 2019
In this paper, we describe the International Pulsar Timing Array second data release, which includes recent pulsar timing data obtained by three regional consortia: the European Pulsar Timing Array, the North American Nanohertz Observatory for ...
B. Perera, B. Perera, M. DeCesar, P. Demorest, M. Kerr, L. Lentati, D. Nice, S. Osłowski, S. Ransom, Michael J. Keith, Z. Arzoumanian, M. Bailes, P. Baker, C. Bassa, N. Bhat, A. Brazier, M. Burgay, S. Burke-Spolaor, S. Burke-Spolaor, R. N. Caballero, D. Champion, S. Chatterjee, S. Chen, I. Cognard, I. Cognard, J. Cordes, K. Crowter, Shi Dai, G. Desvignes, G. Desvignes, T. Dolch, R. Ferdman, E. Ferrara, E. Ferrara, E. Fonseca, Janna M. Goldstein, E. Graikou, L. Guillemot, L. Guillemot, J. Hazboun, G. Hobbs, H. Hu, K. Islo, G. Janssen, G. Janssen, R. Karuppusamy, Michael Kramer, Michael Kramer, M. Lam, Kejia Lee, Kang Liu, J. Luo, A. Lyne, R. Manchester, J. Mckee, J. Mckee, M. McLaughlin, C. Mingarelli, A. Parthasarathy, T. Pennucci, D. Perrodin, A. Possenti, A. Possenti, D. Reardon, C. Russell, S. Sanidas, A. Sesana, G. Shaifullah, R. Shannon, X. Siemens, X. Siemens, J. Simon, R. Spiewak, I. Stairs, B. Stappers, J. Swiggum, S. Taylor, S. Taylor, G. Theureau, G. Theureau, G. Theureau, C. Tiburzi, M. Vallisneri, A. Vecchio, Jiaxing Wang, S. Zhang, Li Zhang, Li Zhang, Weiwei Zhu, Weiwei Zhu, Xingjiang Zhu   +90 more
semanticscholar   +1 more source

A new nearby pulsar wind nebula overlapping the RX J0852.0-4622 supernova remnant [PDF]

, 2012
Energetic pulsars can be embedded in a nebula of relativistic leptons which is powered by the dissipation of the rotational energy of the pulsar.
Acero, F., Ballet, J., Gallant, Y., Renaud, M., Terrier, R.   +4 more
core   +4 more sources

Investigation of Accuracy of TOA and SNR of Radio Pulsar Signals for Vehicles Navigation

Sensors, 2023
It is known that X-ray and gamma-ray pulsars can only be observed by spacecraft because signals from these pulsars are impossible to be detected on the Earth’s surface due to their strong absorption by the Earth’s atmosphere.
Hristo Kabakchiev, Vera Behar, Dorina Kabakchieva, Valentin Kisimov, Kamelia Stefanova   +4 more
doaj   +1 more source

The distance to the Vela pulsar gauged with HST parallax oservations [PDF]

, 2001
The distance to the Vela pulsar (PSR B0833-45) has been traditionally assumed to be 500 pc. Although affected by a significant uncertainty, this value stuck to both the pulsar and the SNR. In an effort to obtain a model free distance measurement, we have
A. De Luca, Becker W., Bocchino F., Caraveo P. A., De Luca A., G. F. Bignami, Kambach G., Manchester R. N., Milne D. K., Nasuti F. P., P. A. Caraveo, Prentice A. J. R., R. P. Mignani   +12 more
core   +2 more sources

Microarcsecond VLBI Pulsar Astrometry with PSRπ II. Parallax Distances for 57 Pulsars [PDF]

Astrophysical Journal, 2018
We present the results of PSRπ, a large astrometric project targeting radio pulsars using the Very Long Baseline Array (VLBA). From our astrometric database of 60 pulsars, we have obtained parallax-based distance measurements for all but 3, with a ...
A. Deller, W. Goss, W. Brisken, S. Chatterjee, J. Cordes, G. Janssen, Y. Y. Kovalev, T. Lazio, L. Petrov, B. Stappers, A. Lyne   +10 more
semanticscholar   +1 more source

Spin Equilibrium of Rapidly Spinning Neutron Stars via Transient Accretion

Galaxies, 2023
The concept of spin equilibrium due to an interaction between the stellar magnetosphere and a thin, Keplerian accretion disk, and a well-known formula of the corresponding equilibrium spin frequency, provide a key understanding of spin evolution and the ...
Sudip Bhattacharyya
doaj   +1 more source

MHD Interaction of Pulsar Wind Nebulae with SNRs and the ISM

, 2005
In the late 1960s the discovery of the Crab pulsar in its associated supernova remnant, launched a new field in supernova remnant research: the study of pulsar-driven or plerionic supernova remnants.
Arzoumanian, Begelman, Blondin, Bucciantini, Bucciantini, Bucciantini, Chevalier, Chevalier, Cioffi, Del Zanna, E. van der Swaluw, Gaensler, Garcia-Segura, Heger, Hoshino, Kennel, Komissarov, McKee, McKee, Pacini, Rees, Reynolds, Stappers, Truelove, van der Swaluw, van der Swaluw, van der Swaluw, van der Swaluw, van der Swaluw   +28 more
core   +2 more sources